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Second batch of KVM updates. Some minor x86 fixes,

Browse Source 
two s390 guest features that need some handling in the host,
 and all the PPC changes.  The PPC changes include support for
 little-endian guests and enablement for new POWER8 features.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull more KVM updates from Paolo Bonzini:
 "Second batch of KVM updates.  Some minor x86 fixes, two s390 guest
  features that need some handling in the host, and all the PPC changes.

  The PPC changes include support for little-endian guests and
  enablement for new POWER8 features"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (45 commits)
  x86, kvm: correctly access the KVM_CPUID_FEATURES leaf at 0x40000101
  x86, kvm: cache the base of the KVM cpuid leaves
  kvm: x86: move KVM_CAP_HYPERV_TIME outside #ifdef
  KVM: PPC: Book3S PR: Cope with doorbell interrupts
  KVM: PPC: Book3S HV: Add software abort codes for transactional memory
  KVM: PPC: Book3S HV: Add new state for transactional memory
  powerpc/Kconfig: Make TM select VSX and VMX
  KVM: PPC: Book3S HV: Basic little-endian guest support
  KVM: PPC: Book3S HV: Add support for DABRX register on POWER7
  KVM: PPC: Book3S HV: Prepare for host using hypervisor doorbells
  KVM: PPC: Book3S HV: Handle new LPCR bits on POWER8
  KVM: PPC: Book3S HV: Handle guest using doorbells for IPIs
  KVM: PPC: Book3S HV: Consolidate code that checks reason for wake from nap
  KVM: PPC: Book3S HV: Implement architecture compatibility modes for POWER8
  KVM: PPC: Book3S HV: Add handler for HV facility unavailable
  KVM: PPC: Book3S HV: Flush the correct number of TLB sets on POWER8
  KVM: PPC: Book3S HV: Context-switch new POWER8 SPRs
  KVM: PPC: Book3S HV: Align physical and virtual CPU thread numbers
  KVM: PPC: Book3S HV: Don't set DABR on POWER8
  kvm/ppc: IRQ disabling cleanup
  ...
This commit is contained in:
Linus Torvalds 2014-01-31 08:37:32 -08:00
commit e2a0f813e0
53 changed files with 1703 additions and 1110 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
Documentation/virtual/kvm/api.txt
View File

@ -1838,6 +1838,7 @@ registers, find a list below:
PPC | KVM_REG_PPC_LPCR | 64
PPC | KVM_REG_PPC_PPR | 64
PPC | KVM_REG_PPC_ARCH_COMPAT 32
PPC | KVM_REG_PPC_DABRX | 32
PPC | KVM_REG_PPC_TM_GPR0 | 64
...
PPC | KVM_REG_PPC_TM_GPR31 | 64

2
arch/powerpc/Kconfig
View File

@ -342,6 +342,8 @@ config PPC_TRANSACTIONAL_MEM
bool "Transactional Memory support for POWERPC"
depends on PPC_BOOK3S_64
depends on SMP
select ALTIVEC
select VSX
default n
---help---
Support user-mode Transactional Memory on POWERPC.

111
arch/powerpc/include/asm/epapr_hcalls.h
View File

@ -460,5 +460,116 @@ static inline unsigned int ev_idle(void)
return r3;
}
#ifdef CONFIG_EPAPR_PARAVIRT
static inline unsigned long epapr_hypercall(unsigned long *in,
unsigned long *out,
unsigned long nr)
{
unsigned long register r0 asm("r0");
unsigned long register r3 asm("r3") = in[0];
unsigned long register r4 asm("r4") = in[1];
unsigned long register r5 asm("r5") = in[2];
unsigned long register r6 asm("r6") = in[3];
unsigned long register r7 asm("r7") = in[4];
unsigned long register r8 asm("r8") = in[5];
unsigned long register r9 asm("r9") = in[6];
unsigned long register r10 asm("r10") = in[7];
unsigned long register r11 asm("r11") = nr;
unsigned long register r12 asm("r12");
asm volatile("bl epapr_hypercall_start"
: "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
"=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
"=r"(r12)
: "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
"r"(r9), "r"(r10), "r"(r11)
: "memory", "cc", "xer", "ctr", "lr");
out[0] = r4;
out[1] = r5;
out[2] = r6;
out[3] = r7;
out[4] = r8;
out[5] = r9;
out[6] = r10;
out[7] = r11;
return r3;
}
#else
static unsigned long epapr_hypercall(unsigned long *in,
unsigned long *out,
unsigned long nr)
{
return EV_UNIMPLEMENTED;
}
#endif
static inline long epapr_hypercall0_1(unsigned int nr, unsigned long *r2)
{
unsigned long in[8];
unsigned long out[8];
unsigned long r;
r = epapr_hypercall(in, out, nr);
*r2 = out[0];
return r;
}
static inline long epapr_hypercall0(unsigned int nr)
{
unsigned long in[8];
unsigned long out[8];
return epapr_hypercall(in, out, nr);
}
static inline long epapr_hypercall1(unsigned int nr, unsigned long p1)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
return epapr_hypercall(in, out, nr);
}
static inline long epapr_hypercall2(unsigned int nr, unsigned long p1,
unsigned long p2)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
return epapr_hypercall(in, out, nr);
}
static inline long epapr_hypercall3(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
in[2] = p3;
return epapr_hypercall(in, out, nr);
}
static inline long epapr_hypercall4(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
in[2] = p3;
in[3] = p4;
return epapr_hypercall(in, out, nr);
}
#endif /* !__ASSEMBLY__ */
#endif /* _EPAPR_HCALLS_H */

3
arch/powerpc/include/asm/kvm_asm.h
View File

@ -92,14 +92,17 @@
#define BOOK3S_INTERRUPT_FP_UNAVAIL 0x800
#define BOOK3S_INTERRUPT_DECREMENTER 0x900
#define BOOK3S_INTERRUPT_HV_DECREMENTER 0x980
#define BOOK3S_INTERRUPT_DOORBELL 0xa00
#define BOOK3S_INTERRUPT_SYSCALL 0xc00
#define BOOK3S_INTERRUPT_TRACE 0xd00
#define BOOK3S_INTERRUPT_H_DATA_STORAGE 0xe00
#define BOOK3S_INTERRUPT_H_INST_STORAGE 0xe20
#define BOOK3S_INTERRUPT_H_EMUL_ASSIST 0xe40
#define BOOK3S_INTERRUPT_H_DOORBELL 0xe80
#define BOOK3S_INTERRUPT_PERFMON 0xf00
#define BOOK3S_INTERRUPT_ALTIVEC 0xf20
#define BOOK3S_INTERRUPT_VSX 0xf40
#define BOOK3S_INTERRUPT_H_FAC_UNAVAIL 0xf80
#define BOOK3S_IRQPRIO_SYSTEM_RESET 0
#define BOOK3S_IRQPRIO_DATA_SEGMENT 1

27
arch/powerpc/include/asm/kvm_book3s.h
View File

@ -186,9 +186,6 @@ extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
extern void kvmppc_entry_trampoline(void);
extern void kvmppc_hv_entry_trampoline(void);
extern void kvmppc_load_up_fpu(void);
extern void kvmppc_load_up_altivec(void);
extern void kvmppc_load_up_vsx(void);
extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
@ -271,16 +268,25 @@ static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
return vcpu->arch.pc;
}
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
{
ulong pc = kvmppc_get_pc(vcpu);
return (vcpu->arch.shared->msr & MSR_LE) != (MSR_KERNEL & MSR_LE);
}
static inline u32 kvmppc_get_last_inst_internal(struct kvm_vcpu *vcpu, ulong pc)
{
/* Load the instruction manually if it failed to do so in the
* exit path */
if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
return vcpu->arch.last_inst;
return kvmppc_need_byteswap(vcpu) ? swab32(vcpu->arch.last_inst) :
vcpu->arch.last_inst;
}
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
{
return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu));
}
/*
@ -290,14 +296,7 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
*/
static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
{
ulong pc = kvmppc_get_pc(vcpu) - 4;
/* Load the instruction manually if it failed to do so in the
* exit path */
if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
return vcpu->arch.last_inst;
return kvmppc_get_last_inst_internal(vcpu, kvmppc_get_pc(vcpu) - 4);
}
static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)

1
arch/powerpc/include/asm/kvm_book3s_asm.h
View File

@ -88,6 +88,7 @@ struct kvmppc_host_state {
u8 hwthread_req;
u8 hwthread_state;
u8 host_ipi;
u8 ptid;
struct kvm_vcpu *kvm_vcpu;
struct kvmppc_vcore *kvm_vcore;
unsigned long xics_phys;

6
arch/powerpc/include/asm/kvm_booke.h
View File

@ -63,6 +63,12 @@ static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
return vcpu->arch.xer;
}
static inline bool kvmppc_need_byteswap(struct kvm_vcpu *vcpu)
{
/* XXX Would need to check TLB entry */
return false;
}
static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
{
return vcpu->arch.last_inst;

61
arch/powerpc/include/asm/kvm_host.h
View File

@ -288,6 +288,7 @@ struct kvmppc_vcore {
int n_woken;
int nap_count;
int napping_threads;
int first_vcpuid;
u16 pcpu;
u16 last_cpu;
u8 vcore_state;
@ -298,10 +299,12 @@ struct kvmppc_vcore {
u64 stolen_tb;
u64 preempt_tb;
struct kvm_vcpu *runner;
struct kvm *kvm;
u64 tb_offset; /* guest timebase - host timebase */
ulong lpcr;
u32 arch_compat;
ulong pcr;
ulong dpdes; /* doorbell state (POWER8) */
};
#define VCORE_ENTRY_COUNT(vc) ((vc)->entry_exit_count & 0xff)
@ -410,8 +413,7 @@ struct kvm_vcpu_arch {
ulong gpr[32];
u64 fpr[32];
u64 fpscr;
struct thread_fp_state fp;
#ifdef CONFIG_SPE
ulong evr[32];
@ -420,12 +422,7 @@ struct kvm_vcpu_arch {
u64 acc;
#endif
#ifdef CONFIG_ALTIVEC
vector128 vr[32];
vector128 vscr;
#endif
#ifdef CONFIG_VSX
u64 vsr[64];
struct thread_vr_state vr;
#endif
#ifdef CONFIG_KVM_BOOKE_HV
@ -452,6 +449,7 @@ struct kvm_vcpu_arch {
ulong pc;
ulong ctr;
ulong lr;
ulong tar;
ulong xer;
u32 cr;
@ -461,13 +459,30 @@ struct kvm_vcpu_arch {
ulong guest_owned_ext;
ulong purr;
ulong spurr;
ulong ic;
ulong vtb;
ulong dscr;
ulong amr;
ulong uamor;
ulong iamr;
u32 ctrl;
u32 dabrx;
ulong dabr;
ulong dawr;
ulong dawrx;
ulong ciabr;
ulong cfar;
ulong ppr;
ulong pspb;
ulong fscr;
ulong ebbhr;
ulong ebbrr;
ulong bescr;
ulong csigr;
ulong tacr;
ulong tcscr;
ulong acop;
ulong wort;
ulong shadow_srr1;
#endif
u32 vrsave; /* also USPRG0 */
@ -502,10 +517,33 @@ struct kvm_vcpu_arch {
u32 ccr1;
u32 dbsr;
u64 mmcr[3];
u64 mmcr[5];
u32 pmc[8];
u32 spmc[2];
u64 siar;
u64 sdar;
u64 sier;
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
u64 tfhar;
u64 texasr;
u64 tfiar;
u32 cr_tm;
u64 lr_tm;
u64 ctr_tm;
u64 amr_tm;
u64 ppr_tm;
u64 dscr_tm;
u64 tar_tm;
ulong gpr_tm[32];
struct thread_fp_state fp_tm;
struct thread_vr_state vr_tm;
u32 vrsave_tm; /* also USPRG0 */
#endif
#ifdef CONFIG_KVM_EXIT_TIMING
struct mutex exit_timing_lock;
@ -546,6 +584,7 @@ struct kvm_vcpu_arch {
#endif
gpa_t paddr_accessed;
gva_t vaddr_accessed;
pgd_t *pgdir;
u8 io_gpr; /* GPR used as IO source/target */
u8 mmio_is_bigendian;
@ -603,7 +642,6 @@ struct kvm_vcpu_arch {
struct list_head run_list;
struct task_struct *run_task;
struct kvm_run *kvm_run;
pgd_t *pgdir;
spinlock_t vpa_update_lock;
struct kvmppc_vpa vpa;
@ -616,9 +654,12 @@ struct kvm_vcpu_arch {
spinlock_t tbacct_lock;
u64 busy_stolen;
u64 busy_preempt;
unsigned long intr_msr;
#endif
};
#define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
/* Values for vcpu->arch.state */
#define KVMPPC_VCPU_NOTREADY 0
#define KVMPPC_VCPU_RUNNABLE 1

80
arch/powerpc/include/asm/kvm_para.h
View File

@ -39,10 +39,6 @@ static inline int kvm_para_available(void)
return 1;
}
extern unsigned long kvm_hypercall(unsigned long *in,
unsigned long *out,
unsigned long nr);
#else
static inline int kvm_para_available(void)
@ -50,82 +46,8 @@ static inline int kvm_para_available(void)
return 0;
}
static unsigned long kvm_hypercall(unsigned long *in,
unsigned long *out,
unsigned long nr)
{
return EV_UNIMPLEMENTED;
}
#endif
static inline long kvm_hypercall0_1(unsigned int nr, unsigned long *r2)
{
unsigned long in[8];
unsigned long out[8];
unsigned long r;
r = kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
*r2 = out[0];
return r;
}
static inline long kvm_hypercall0(unsigned int nr)
{
unsigned long in[8];
unsigned long out[8];
return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
}
static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
}
static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
unsigned long p2)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
}
static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
in[2] = p3;
return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
}
static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3,
unsigned long p4)
{
unsigned long in[8];
unsigned long out[8];
in[0] = p1;
in[1] = p2;
in[2] = p3;
in[3] = p4;
return kvm_hypercall(in, out, KVM_HCALL_TOKEN(nr));
}
static inline unsigned int kvm_arch_para_features(void)
{
unsigned long r;
@ -133,7 +55,7 @@ static inline unsigned int kvm_arch_para_features(void)
if (!kvm_para_available())
return 0;
if(kvm_hypercall0_1(KVM_HC_FEATURES, &r))
if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
return 0;
return r;

13
arch/powerpc/include/asm/kvm_ppc.h
View File

@ -54,12 +54,13 @@ extern void kvmppc_handler_highmem(void);
extern void kvmppc_dump_vcpu(struct kvm_vcpu *vcpu);
extern int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes,
int is_bigendian);
int is_default_endian);
extern int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes,
int is_bigendian);
int is_default_endian);
extern int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
u64 val, unsigned int bytes, int is_bigendian);
u64 val, unsigned int bytes,
int is_default_endian);
extern int kvmppc_emulate_instruction(struct kvm_run *run,
struct kvm_vcpu *vcpu);
@ -455,6 +456,12 @@ static inline void kvmppc_fix_ee_before_entry(void)
trace_hardirqs_on();
#ifdef CONFIG_PPC64
/*
* To avoid races, the caller must have gone directly from having
* interrupts fully-enabled to hard-disabled.
*/
WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS);
/* Only need to enable IRQs by hard enabling them after this */
local_paca->irq_happened = 0;
local_paca->soft_enabled = 1;

21
arch/powerpc/include/asm/pgtable.h
View File

@ -287,6 +287,27 @@ extern int gup_hugepte(pte_t *ptep, unsigned long sz, unsigned long addr,
#endif
pte_t *find_linux_pte_or_hugepte(pgd_t *pgdir, unsigned long ea,
unsigned *shift);
static inline pte_t *lookup_linux_ptep(pgd_t *pgdir, unsigned long hva,
unsigned long *pte_sizep)
{
pte_t *ptep;
unsigned long ps = *pte_sizep;
unsigned int shift;
ptep = find_linux_pte_or_hugepte(pgdir, hva, &shift);
if (!ptep)
return NULL;
if (shift)
*pte_sizep = 1ul << shift;
else
*pte_sizep = PAGE_SIZE;
if (ps > *pte_sizep)
return NULL;
return ptep;
}
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */

43
arch/powerpc/include/asm/reg.h
View File

@ -223,17 +223,26 @@
#define CTRL_TE 0x00c00000 /* thread enable */
#define CTRL_RUNLATCH 0x1
#define SPRN_DAWR 0xB4
#define SPRN_CIABR 0xBB
#define CIABR_PRIV 0x3
#define CIABR_PRIV_USER 1
#define CIABR_PRIV_SUPER 2
#define CIABR_PRIV_HYPER 3
#define SPRN_DAWRX 0xBC
#define DAWRX_USER (1UL << 0)
#define DAWRX_KERNEL (1UL << 1)
#define DAWRX_HYP (1UL << 2)
#define DAWRX_USER __MASK(0)
#define DAWRX_KERNEL __MASK(1)
#define DAWRX_HYP __MASK(2)
#define DAWRX_WTI __MASK(3)
#define DAWRX_WT __MASK(4)
#define DAWRX_DR __MASK(5)
#define DAWRX_DW __MASK(6)
#define SPRN_DABR 0x3F5 /* Data Address Breakpoint Register */
#define SPRN_DABR2 0x13D /* e300 */
#define SPRN_DABRX 0x3F7 /* Data Address Breakpoint Register Extension */
#define DABRX_USER (1UL << 0)
#define DABRX_KERNEL (1UL << 1)
#define DABRX_HYP (1UL << 2)
#define DABRX_BTI (1UL << 3)
#define DABRX_USER __MASK(0)
#define DABRX_KERNEL __MASK(1)
#define DABRX_HYP __MASK(2)
#define DABRX_BTI __MASK(3)
#define DABRX_ALL (DABRX_BTI | DABRX_HYP | DABRX_KERNEL | DABRX_USER)
#define SPRN_DAR 0x013 /* Data Address Register */
#define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */
@ -260,6 +269,8 @@
#define SPRN_HRMOR 0x139 /* Real mode offset register */
#define SPRN_HSRR0 0x13A /* Hypervisor Save/Restore 0 */
#define SPRN_HSRR1 0x13B /* Hypervisor Save/Restore 1 */
#define SPRN_IC 0x350 /* Virtual Instruction Count */
#define SPRN_VTB 0x351 /* Virtual Time Base */
/* HFSCR and FSCR bit numbers are the same */
#define FSCR_TAR_LG 8 /* Enable Target Address Register */
#define FSCR_EBB_LG 7 /* Enable Event Based Branching */
@ -298,9 +309,13 @@
#define LPCR_RMLS 0x1C000000 /* impl dependent rmo limit sel */
#define LPCR_RMLS_SH (63-37)
#define LPCR_ILE 0x02000000 /* !HV irqs set MSR:LE */
#define LPCR_AIL 0x01800000 /* Alternate interrupt location */
#define LPCR_AIL_0 0x00000000 /* MMU off exception offset 0x0 */
#define LPCR_AIL_3 0x01800000 /* MMU on exception offset 0xc00...4xxx */
#define LPCR_PECE 0x00007000 /* powersave exit cause enable */
#define LPCR_ONL 0x00040000 /* online - PURR/SPURR count */
#define LPCR_PECE 0x0001f000 /* powersave exit cause enable */
#define LPCR_PECEDP 0x00010000 /* directed priv dbells cause exit */
#define LPCR_PECEDH 0x00008000 /* directed hyp dbells cause exit */
#define LPCR_PECE0 0x00004000 /* ext. exceptions can cause exit */
#define LPCR_PECE1 0x00002000 /* decrementer can cause exit */
#define LPCR_PECE2 0x00001000 /* machine check etc can cause exit */
@ -322,6 +337,8 @@
#define SPRN_PCR 0x152 /* Processor compatibility register */
#define PCR_VEC_DIS (1ul << (63-0)) /* Vec. disable (bit NA since POWER8) */
#define PCR_VSX_DIS (1ul << (63-1)) /* VSX disable (bit NA since POWER8) */
#define PCR_TM_DIS (1ul << (63-2)) /* Trans. memory disable (POWER8) */
#define PCR_ARCH_206 0x4 /* Architecture 2.06 */
#define PCR_ARCH_205 0x2 /* Architecture 2.05 */
#define SPRN_HEIR 0x153 /* Hypervisor Emulated Instruction Register */
#define SPRN_TLBINDEXR 0x154 /* P7 TLB control register */
@ -368,6 +385,8 @@
#define DER_EBRKE 0x00000002 /* External Breakpoint Interrupt */
#define DER_DPIE 0x00000001 /* Dev. Port Nonmaskable Request */
#define SPRN_DMISS 0x3D0 /* Data TLB Miss Register */
#define SPRN_DHDES 0x0B1 /* Directed Hyp. Doorbell Exc. State */
#define SPRN_DPDES 0x0B0 /* Directed Priv. Doorbell Exc. State */
#define SPRN_EAR 0x11A /* External Address Register */
#define SPRN_HASH1 0x3D2 /* Primary Hash Address Register */
#define SPRN_HASH2 0x3D3 /* Secondary Hash Address Resgister */
@ -427,6 +446,7 @@
#define SPRN_IABR 0x3F2 /* Instruction Address Breakpoint Register */
#define SPRN_IABR2 0x3FA /* 83xx */
#define SPRN_IBCR 0x135 /* 83xx Insn Breakpoint Control Reg */
#define SPRN_IAMR 0x03D /* Instr. Authority Mask Reg */
#define SPRN_HID4 0x3F4 /* 970 HID4 */
#define HID4_LPES0 (1ul << (63-0)) /* LPAR env. sel. bit 0 */
#define HID4_RMLS2_SH (63 - 2) /* Real mode limit bottom 2 bits */
@ -541,6 +561,7 @@
#define SPRN_PIR 0x3FF /* Processor Identification Register */
#endif
#define SPRN_TIR 0x1BE /* Thread Identification Register */
#define SPRN_PSPB 0x09F /* Problem State Priority Boost reg */
#define SPRN_PTEHI 0x3D5 /* 981 7450 PTE HI word (S/W TLB load) */
#define SPRN_PTELO 0x3D6 /* 982 7450 PTE LO word (S/W TLB load) */
#define SPRN_PURR 0x135 /* Processor Utilization of Resources Reg */
@ -682,6 +703,7 @@
#define SPRN_EBBHR 804 /* Event based branch handler register */
#define SPRN_EBBRR 805 /* Event based branch return register */
#define SPRN_BESCR 806 /* Branch event status and control register */
#define SPRN_WORT 895 /* Workload optimization register - thread */
#define SPRN_PMC1 787
#define SPRN_PMC2 788
@ -698,6 +720,11 @@
#define SIER_SIHV 0x1000000 /* Sampled MSR_HV */
#define SIER_SIAR_VALID 0x0400000 /* SIAR contents valid */
#define SIER_SDAR_VALID 0x0200000 /* SDAR contents valid */
#define SPRN_TACR 888
#define SPRN_TCSCR 889
#define SPRN_CSIGR 890
#define SPRN_SPMC1 892
#define SPRN_SPMC2 893
/* When EBB is enabled, some of MMCR0/MMCR2/SIER are user accessible */
#define MMCR0_USER_MASK (MMCR0_FC | MMCR0_PMXE | MMCR0_PMAO)

2
arch/powerpc/include/asm/switch_to.h
View File

@ -25,10 +25,8 @@ static inline void save_tar(struct thread_struct *prev)
static inline void save_tar(struct thread_struct *prev) {}
#endif
extern void load_up_fpu(void);
extern void enable_kernel_fp(void);
extern void enable_kernel_altivec(void);
extern void load_up_altivec(struct task_struct *);
extern int emulate_altivec(struct pt_regs *);
extern void __giveup_vsx(struct task_struct *);
extern void giveup_vsx(struct task_struct *);

3
arch/powerpc/include/uapi/asm/kvm.h
View File

@ -545,6 +545,7 @@ struct kvm_get_htab_header {
#define KVM_REG_PPC_TCSCR (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb1)
#define KVM_REG_PPC_PID (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb2)
#define KVM_REG_PPC_ACOP (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb3)
#define KVM_REG_PPC_WORT (KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb4)
#define KVM_REG_PPC_VRSAVE (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4)
#define KVM_REG_PPC_LPCR (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5)
@ -553,6 +554,8 @@ struct kvm_get_htab_header {
/* Architecture compatibility level */
#define KVM_REG_PPC_ARCH_COMPAT (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb7)
#define KVM_REG_PPC_DABRX (KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb8)
/* Transactional Memory checkpointed state:
* This is all GPRs, all VSX regs and a subset of SPRs
*/

2
arch/powerpc/include/uapi/asm/tm.h
View File

@ -6,6 +6,8 @@
* the failure is persistent. PAPR saves 0xff-0xe0 for the hypervisor.
*/
#define TM_CAUSE_PERSISTENT 0x01
#define TM_CAUSE_KVM_RESCHED 0xe0 /* From PAPR */
#define TM_CAUSE_KVM_FAC_UNAV 0xe2 /* From PAPR */
#define TM_CAUSE_RESCHED 0xde
#define TM_CAUSE_TLBI 0xdc
#define TM_CAUSE_FAC_UNAV 0xda

50
arch/powerpc/kernel/asm-offsets.c
View File

@ -438,18 +438,14 @@ int main(void)
DEFINE(VCPU_GUEST_PID, offsetof(struct kvm_vcpu, arch.pid));
DEFINE(VCPU_GPRS, offsetof(struct kvm_vcpu, arch.gpr));
DEFINE(VCPU_VRSAVE, offsetof(struct kvm_vcpu, arch.vrsave));
DEFINE(VCPU_FPRS, offsetof(struct kvm_vcpu, arch.fpr));
DEFINE(VCPU_FPSCR, offsetof(struct kvm_vcpu, arch.fpscr));
DEFINE(VCPU_FPRS, offsetof(struct kvm_vcpu, arch.fp.fpr));
#ifdef CONFIG_ALTIVEC
DEFINE(VCPU_VRS, offsetof(struct kvm_vcpu, arch.vr));
DEFINE(VCPU_VSCR, offsetof(struct kvm_vcpu, arch.vscr));
#endif
#ifdef CONFIG_VSX
DEFINE(VCPU_VSRS, offsetof(struct kvm_vcpu, arch.vsr));
DEFINE(VCPU_VRS, offsetof(struct kvm_vcpu, arch.vr.vr));
#endif
DEFINE(VCPU_XER, offsetof(struct kvm_vcpu, arch.xer));
DEFINE(VCPU_CTR, offsetof(struct kvm_vcpu, arch.ctr));
DEFINE(VCPU_LR, offsetof(struct kvm_vcpu, arch.lr));
DEFINE(VCPU_TAR, offsetof(struct kvm_vcpu, arch.tar));
DEFINE(VCPU_CR, offsetof(struct kvm_vcpu, arch.cr));
DEFINE(VCPU_PC, offsetof(struct kvm_vcpu, arch.pc));
#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
@ -497,16 +493,24 @@ int main(void)
DEFINE(VCPU_DAR, offsetof(struct kvm_vcpu, arch.shregs.dar));
DEFINE(VCPU_VPA, offsetof(struct kvm_vcpu, arch.vpa.pinned_addr));
DEFINE(VCPU_VPA_DIRTY, offsetof(struct kvm_vcpu, arch.vpa.dirty));
DEFINE(VCPU_INTR_MSR, offsetof(struct kvm_vcpu, arch.intr_msr));
#endif
#ifdef CONFIG_PPC_BOOK3S
DEFINE(VCPU_VCPUID, offsetof(struct kvm_vcpu, vcpu_id));
DEFINE(VCPU_PURR, offsetof(struct kvm_vcpu, arch.purr));
DEFINE(VCPU_SPURR, offsetof(struct kvm_vcpu, arch.spurr));
DEFINE(VCPU_IC, offsetof(struct kvm_vcpu, arch.ic));
DEFINE(VCPU_VTB, offsetof(struct kvm_vcpu, arch.vtb));
DEFINE(VCPU_DSCR, offsetof(struct kvm_vcpu, arch.dscr));
DEFINE(VCPU_AMR, offsetof(struct kvm_vcpu, arch.amr));
DEFINE(VCPU_UAMOR, offsetof(struct kvm_vcpu, arch.uamor));
DEFINE(VCPU_IAMR, offsetof(struct kvm_vcpu, arch.iamr));
DEFINE(VCPU_CTRL, offsetof(struct kvm_vcpu, arch.ctrl));
DEFINE(VCPU_DABR, offsetof(struct kvm_vcpu, arch.dabr));
DEFINE(VCPU_DABRX, offsetof(struct kvm_vcpu, arch.dabrx));
DEFINE(VCPU_DAWR, offsetof(struct kvm_vcpu, arch.dawr));
DEFINE(VCPU_DAWRX, offsetof(struct kvm_vcpu, arch.dawrx));
DEFINE(VCPU_CIABR, offsetof(struct kvm_vcpu, arch.ciabr));
DEFINE(VCPU_HFLAGS, offsetof(struct kvm_vcpu, arch.hflags));
DEFINE(VCPU_DEC, offsetof(struct kvm_vcpu, arch.dec));
DEFINE(VCPU_DEC_EXPIRES, offsetof(struct kvm_vcpu, arch.dec_expires));
@ -515,8 +519,10 @@ int main(void)
DEFINE(VCPU_PRODDED, offsetof(struct kvm_vcpu, arch.prodded));
DEFINE(VCPU_MMCR, offsetof(struct kvm_vcpu, arch.mmcr));
DEFINE(VCPU_PMC, offsetof(struct kvm_vcpu, arch.pmc));
DEFINE(VCPU_SPMC, offsetof(struct kvm_vcpu, arch.spmc));
DEFINE(VCPU_SIAR, offsetof(struct kvm_vcpu, arch.siar));
DEFINE(VCPU_SDAR, offsetof(struct kvm_vcpu, arch.sdar));
DEFINE(VCPU_SIER, offsetof(struct kvm_vcpu, arch.sier));
DEFINE(VCPU_SLB, offsetof(struct kvm_vcpu, arch.slb));
DEFINE(VCPU_SLB_MAX, offsetof(struct kvm_vcpu, arch.slb_max));
DEFINE(VCPU_SLB_NR, offsetof(struct kvm_vcpu, arch.slb_nr));
@ -524,20 +530,47 @@ int main(void)
DEFINE(VCPU_FAULT_DAR, offsetof(struct kvm_vcpu, arch.fault_dar));
DEFINE(VCPU_LAST_INST, offsetof(struct kvm_vcpu, arch.last_inst));
DEFINE(VCPU_TRAP, offsetof(struct kvm_vcpu, arch.trap));
DEFINE(VCPU_PTID, offsetof(struct kvm_vcpu, arch.ptid));
DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar));
DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr));
DEFINE(VCPU_FSCR, offsetof(struct kvm_vcpu, arch.fscr));
DEFINE(VCPU_PSPB, offsetof(struct kvm_vcpu, arch.pspb));
DEFINE(VCPU_EBBHR, offsetof(struct kvm_vcpu, arch.ebbhr));
DEFINE(VCPU_EBBRR, offsetof(struct kvm_vcpu, arch.ebbrr));
DEFINE(VCPU_BESCR, offsetof(struct kvm_vcpu, arch.bescr));
DEFINE(VCPU_CSIGR, offsetof(struct kvm_vcpu, arch.csigr));
DEFINE(VCPU_TACR, offsetof(struct kvm_vcpu, arch.tacr));
DEFINE(VCPU_TCSCR, offsetof(struct kvm_vcpu, arch.tcscr));
DEFINE(VCPU_ACOP, offsetof(struct kvm_vcpu, arch.acop));
DEFINE(VCPU_WORT, offsetof(struct kvm_vcpu, arch.wort));
DEFINE(VCPU_SHADOW_SRR1, offsetof(struct kvm_vcpu, arch.shadow_srr1));
DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_count));
DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count));
DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads));
DEFINE(VCORE_KVM, offsetof(struct kvmppc_vcore, kvm));
DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
DEFINE(VCORE_LPCR, offsetof(struct kvmppc_vcore, lpcr));
DEFINE(VCORE_PCR, offsetof(struct kvmppc_vcore, pcr));
DEFINE(VCORE_DPDES, offsetof(struct kvmppc_vcore, dpdes));
DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
DEFINE(VCPU_SLB_V, offsetof(struct kvmppc_slb, origv));
DEFINE(VCPU_SLB_SIZE, sizeof(struct kvmppc_slb));
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
DEFINE(VCPU_TFHAR, offsetof(struct kvm_vcpu, arch.tfhar));
DEFINE(VCPU_TFIAR, offsetof(struct kvm_vcpu, arch.tfiar));
DEFINE(VCPU_TEXASR, offsetof(struct kvm_vcpu, arch.texasr));
DEFINE(VCPU_GPR_TM, offsetof(struct kvm_vcpu, arch.gpr_tm));
DEFINE(VCPU_FPRS_TM, offsetof(struct kvm_vcpu, arch.fp_tm.fpr));
DEFINE(VCPU_VRS_TM, offsetof(struct kvm_vcpu, arch.vr_tm.vr));
DEFINE(VCPU_VRSAVE_TM, offsetof(struct kvm_vcpu, arch.vrsave_tm));
DEFINE(VCPU_CR_TM, offsetof(struct kvm_vcpu, arch.cr_tm));
DEFINE(VCPU_LR_TM, offsetof(struct kvm_vcpu, arch.lr_tm));
DEFINE(VCPU_CTR_TM, offsetof(struct kvm_vcpu, arch.ctr_tm));
DEFINE(VCPU_AMR_TM, offsetof(struct kvm_vcpu, arch.amr_tm));
DEFINE(VCPU_PPR_TM, offsetof(struct kvm_vcpu, arch.ppr_tm));
DEFINE(VCPU_DSCR_TM, offsetof(struct kvm_vcpu, arch.dscr_tm));
DEFINE(VCPU_TAR_TM, offsetof(struct kvm_vcpu, arch.tar_tm));
#endif
#ifdef CONFIG_PPC_BOOK3S_64
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
@ -602,6 +635,7 @@ int main(void)
HSTATE_FIELD(HSTATE_XICS_PHYS, xics_phys);
HSTATE_FIELD(HSTATE_SAVED_XIRR, saved_xirr);
HSTATE_FIELD(HSTATE_HOST_IPI, host_ipi);
HSTATE_FIELD(HSTATE_PTID, ptid);
HSTATE_FIELD(HSTATE_MMCR, host_mmcr);
HSTATE_FIELD(HSTATE_PMC, host_pmc);
HSTATE_FIELD(HSTATE_PURR, host_purr);

41
arch/powerpc/kernel/kvm.c
View File

@ -413,13 +413,13 @@ static void kvm_map_magic_page(void *data)
{
u32 *features = data;
ulong in[8];
ulong in[8] = {0};
ulong out[8];
in[0] = KVM_MAGIC_PAGE;
in[1] = KVM_MAGIC_PAGE;
kvm_hypercall(in, out, KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE));
epapr_hypercall(in, out, KVM_HCALL_TOKEN(KVM_HC_PPC_MAP_MAGIC_PAGE));
*features = out[0];
}
@ -711,43 +711,6 @@ static void kvm_use_magic_page(void)
kvm_patching_worked ? "worked" : "failed");
}
unsigned long kvm_hypercall(unsigned long *in,
unsigned long *out,
unsigned long nr)
{
unsigned long register r0 asm("r0");
unsigned long register r3 asm("r3") = in[0];
unsigned long register r4 asm("r4") = in[1];
unsigned long register r5 asm("r5") = in[2];
unsigned long register r6 asm("r6") = in[3];
unsigned long register r7 asm("r7") = in[4];
unsigned long register r8 asm("r8") = in[5];
unsigned long register r9 asm("r9") = in[6];
unsigned long register r10 asm("r10") = in[7];
unsigned long register r11 asm("r11") = nr;
unsigned long register r12 asm("r12");
asm volatile("bl epapr_hypercall_start"
: "=r"(r0), "=r"(r3), "=r"(r4), "=r"(r5), "=r"(r6),
"=r"(r7), "=r"(r8), "=r"(r9), "=r"(r10), "=r"(r11),
"=r"(r12)
: "r"(r3), "r"(r4), "r"(r5), "r"(r6), "r"(r7), "r"(r8),
"r"(r9), "r"(r10), "r"(r11)
: "memory", "cc", "xer", "ctr", "lr");
out[0] = r4;
out[1] = r5;
out[2] = r6;
out[3] = r7;
out[4] = r8;
out[5] = r9;
out[6] = r10;
out[7] = r11;
return r3;
}
EXPORT_SYMBOL_GPL(kvm_hypercall);
static __init void kvm_free_tmp(void)
{
free_reserved_area(&kvm_tmp[kvm_tmp_index],

4
arch/powerpc/kvm/44x.c
View File

@ -21,6 +21,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@ -231,3 +233,5 @@ static void __exit kvmppc_44x_exit(void)
module_init(kvmppc_44x_init);
module_exit(kvmppc_44x_exit);
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");

46
arch/powerpc/kvm/book3s.c
View File

@ -18,6 +18,8 @@
#include <linux/err.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@ -575,10 +577,10 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
break;
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
i = reg->id - KVM_REG_PPC_FPR0;
val = get_reg_val(reg->id, vcpu->arch.fpr[i]);
val = get_reg_val(reg->id, VCPU_FPR(vcpu, i));
break;
case KVM_REG_PPC_FPSCR:
val = get_reg_val(reg->id, vcpu->arch.fpscr);
val = get_reg_val(reg->id, vcpu->arch.fp.fpscr);
break;
#ifdef CONFIG_ALTIVEC
case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
@ -586,19 +588,30 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
r = -ENXIO;
break;
}
val.vval = vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0];
val.vval = vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0];
break;
case KVM_REG_PPC_VSCR:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
r = -ENXIO;
break;
}
val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
val = get_reg_val(reg->id, vcpu->arch.vr.vscr.u[3]);
break;
case KVM_REG_PPC_VRSAVE:
val = get_reg_val(reg->id, vcpu->arch.vrsave);
break;
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_VSX
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
long int i = reg->id - KVM_REG_PPC_VSR0;
val.vsxval[0] = vcpu->arch.fp.fpr[i][0];
val.vsxval[1] = vcpu->arch.fp.fpr[i][1];
} else {
r = -ENXIO;
}
break;
#endif /* CONFIG_VSX */
case KVM_REG_PPC_DEBUG_INST: {
u32 opcode = INS_TW;
r = copy_to_user((u32 __user *)(long)reg->addr,
@ -654,10 +667,10 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
break;
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
i = reg->id - KVM_REG_PPC_FPR0;
vcpu->arch.fpr[i] = set_reg_val(reg->id, val);
VCPU_FPR(vcpu, i) = set_reg_val(reg->id, val);
break;
case KVM_REG_PPC_FPSCR:
vcpu->arch.fpscr = set_reg_val(reg->id, val);
vcpu->arch.fp.fpscr = set_reg_val(reg->id, val);
break;
#ifdef CONFIG_ALTIVEC
case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
@ -665,14 +678,14 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
r = -ENXIO;
break;
}
vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
vcpu->arch.vr.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
break;
case KVM_REG_PPC_VSCR:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
r = -ENXIO;
break;
}
vcpu->arch.vscr.u[3] = set_reg_val(reg->id, val);
vcpu->arch.vr.vscr.u[3] = set_reg_val(reg->id, val);
break;
case KVM_REG_PPC_VRSAVE:
if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
@ -682,6 +695,17 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
vcpu->arch.vrsave = set_reg_val(reg->id, val);
break;
#endif /* CONFIG_ALTIVEC */
#ifdef CONFIG_VSX
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
long int i = reg->id - KVM_REG_PPC_VSR0;
vcpu->arch.fp.fpr[i][0] = val.vsxval[0];
vcpu->arch.fp.fpr[i][1] = val.vsxval[1];
} else {
r = -ENXIO;
}
break;
#endif /* CONFIG_VSX */
#ifdef CONFIG_KVM_XICS
case KVM_REG_PPC_ICP_STATE:
if (!vcpu->arch.icp) {
@ -879,3 +903,9 @@ static void kvmppc_book3s_exit(void)
module_init(kvmppc_book3s_init);
module_exit(kvmppc_book3s_exit);
/* On 32bit this is our one and only kernel module */
#ifdef CONFIG_KVM_BOOK3S_32
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");
#endif

5
arch/powerpc/kvm/book3s_32_mmu_host.c
View File

@ -243,6 +243,11 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
/* Now tell our Shadow PTE code about the new page */
pte = kvmppc_mmu_hpte_cache_next(vcpu);
if (!pte) {
kvm_release_pfn_clean(hpaddr >> PAGE_SHIFT);
r = -EAGAIN;
goto out;
}
dprintk_mmu("KVM: %c%c Map 0x%llx: [%lx] 0x%llx (0x%llx) -> %lx\n",
orig_pte->may_write ? 'w' : '-',

4
arch/powerpc/kvm/book3s_64_mmu_hv.c
View File

@ -262,7 +262,7 @@ int kvmppc_mmu_hv_init(void)
static void kvmppc_mmu_book3s_64_hv_reset_msr(struct kvm_vcpu *vcpu)
{
kvmppc_set_msr(vcpu, MSR_SF | MSR_ME);
kvmppc_set_msr(vcpu, vcpu->arch.intr_msr);
}
/*
@ -562,7 +562,7 @@ static int kvmppc_hv_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu,
* we just return and retry the instruction.
*/
if (instruction_is_store(vcpu->arch.last_inst) != !!is_store)
if (instruction_is_store(kvmppc_get_last_inst(vcpu)) != !!is_store)
return RESUME_GUEST;
/*

4
arch/powerpc/kvm/book3s_exports.c
View File

@ -25,9 +25,5 @@ EXPORT_SYMBOL_GPL(kvmppc_hv_entry_trampoline);
#endif
#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
EXPORT_SYMBOL_GPL(kvmppc_entry_trampoline);
EXPORT_SYMBOL_GPL(kvmppc_load_up_fpu);
#ifdef CONFIG_ALTIVEC
EXPORT_SYMBOL_GPL(kvmppc_load_up_altivec);
#endif
#endif

319
arch/powerpc/kvm/book3s_hv.c
View File

@ -31,6 +31,7 @@
#include <linux/spinlock.h>
#include <linux/page-flags.h>
#include <linux/srcu.h>
#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@ -85,10 +86,13 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
/* CPU points to the first thread of the core */
if (cpu != me && cpu >= 0 && cpu < nr_cpu_ids) {
#ifdef CONFIG_KVM_XICS
int real_cpu = cpu + vcpu->arch.ptid;
if (paca[real_cpu].kvm_hstate.xics_phys)
xics_wake_cpu(real_cpu);
else if (cpu_online(cpu))
else
#endif
if (cpu_online(cpu))
smp_send_reschedule(cpu);
}
put_cpu();
@ -182,14 +186,28 @@ int kvmppc_set_arch_compat(struct kvm_vcpu *vcpu, u32 arch_compat)
switch (arch_compat) {
case PVR_ARCH_205:
pcr = PCR_ARCH_205;
/*
* If an arch bit is set in PCR, all the defined
* higher-order arch bits also have to be set.
*/
pcr = PCR_ARCH_206 | PCR_ARCH_205;
break;
case PVR_ARCH_206:
case PVR_ARCH_206p:
pcr = PCR_ARCH_206;
break;
case PVR_ARCH_207:
break;
default:
return -EINVAL;
}
if (!cpu_has_feature(CPU_FTR_ARCH_207S)) {
/* POWER7 can't emulate POWER8 */
if (!(pcr & PCR_ARCH_206))
return -EINVAL;
pcr &= ~PCR_ARCH_206;
}
}
spin_lock(&vc->lock);
@ -637,6 +655,7 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
r = RESUME_GUEST;
break;
case BOOK3S_INTERRUPT_EXTERNAL:
case BOOK3S_INTERRUPT_H_DOORBELL:
vcpu->stat.ext_intr_exits++;
r = RESUME_GUEST;
break;
@ -673,12 +692,10 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* hcall - punt to userspace */
int i;
if (vcpu->arch.shregs.msr & MSR_PR) {
/* sc 1 from userspace - reflect to guest syscall */
kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_SYSCALL);
r = RESUME_GUEST;
break;
}
/* hypercall with MSR_PR has already been handled in rmode,
* and never reaches here.
*/
run->papr_hcall.nr = kvmppc_get_gpr(vcpu, 3);
for (i = 0; i < 9; ++i)
run->papr_hcall.args[i] = kvmppc_get_gpr(vcpu, 4 + i);
@ -708,7 +725,16 @@ static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
* we don't emulate any guest instructions at this stage.
*/
case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
kvmppc_core_queue_program(vcpu, 0x80000);
kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
r = RESUME_GUEST;
break;
/*
* This occurs if the guest (kernel or userspace), does something that
* is prohibited by HFSCR. We just generate a program interrupt to
* the guest.
*/
case BOOK3S_INTERRUPT_H_FAC_UNAVAIL:
kvmppc_core_queue_program(vcpu, SRR1_PROGILL);
r = RESUME_GUEST;
break;
default:
@ -765,11 +791,35 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr)
u64 mask;
spin_lock(&vc->lock);
/*
* If ILE (interrupt little-endian) has changed, update the
* MSR_LE bit in the intr_msr for each vcpu in this vcore.
*/
if ((new_lpcr & LPCR_ILE) != (vc->lpcr & LPCR_ILE)) {
struct kvm *kvm = vcpu->kvm;
struct kvm_vcpu *vcpu;
int i;
mutex_lock(&kvm->lock);
kvm_for_each_vcpu(i, vcpu, kvm) {
if (vcpu->arch.vcore != vc)
continue;
if (new_lpcr & LPCR_ILE)
vcpu->arch.intr_msr |= MSR_LE;
else
vcpu->arch.intr_msr &= ~MSR_LE;
}
mutex_unlock(&kvm->lock);
}
/*
* Userspace can only modify DPFD (default prefetch depth),
* ILE (interrupt little-endian) and TC (translation control).
* On POWER8 userspace can also modify AIL (alt. interrupt loc.)
*/
mask = LPCR_DPFD | LPCR_ILE | LPCR_TC;
if (cpu_has_feature(CPU_FTR_ARCH_207S))
mask |= LPCR_AIL;
vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
spin_unlock(&vc->lock);
}
@ -787,6 +837,9 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_DABR:
*val = get_reg_val(id, vcpu->arch.dabr);
break;
case KVM_REG_PPC_DABRX:
*val = get_reg_val(id, vcpu->arch.dabrx);
break;
case KVM_REG_PPC_DSCR:
*val = get_reg_val(id, vcpu->arch.dscr);
break;
@ -802,7 +855,7 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_UAMOR:
*val = get_reg_val(id, vcpu->arch.uamor);
break;
case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRA:
case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRS:
i = id - KVM_REG_PPC_MMCR0;
*val = get_reg_val(id, vcpu->arch.mmcr[i]);
break;
@ -810,33 +863,87 @@ static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
i = id - KVM_REG_PPC_PMC1;
*val = get_reg_val(id, vcpu->arch.pmc[i]);
break;
case KVM_REG_PPC_SPMC1 ... KVM_REG_PPC_SPMC2:
i = id - KVM_REG_PPC_SPMC1;
*val = get_reg_val(id, vcpu->arch.spmc[i]);
break;
case KVM_REG_PPC_SIAR:
*val = get_reg_val(id, vcpu->arch.siar);
break;
case KVM_REG_PPC_SDAR:
*val = get_reg_val(id, vcpu->arch.sdar);
break;
#ifdef CONFIG_VSX
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
/* VSX => FP reg i is stored in arch.vsr[2*i] */
long int i = id - KVM_REG_PPC_FPR0;
*val = get_reg_val(id, vcpu->arch.vsr[2 * i]);
} else {
/* let generic code handle it */
r = -EINVAL;
}
case KVM_REG_PPC_SIER:
*val = get_reg_val(id, vcpu->arch.sier);
break;
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
long int i = id - KVM_REG_PPC_VSR0;
val->vsxval[0] = vcpu->arch.vsr[2 * i];
val->vsxval[1] = vcpu->arch.vsr[2 * i + 1];
} else {
r = -ENXIO;
}
case KVM_REG_PPC_IAMR:
*val = get_reg_val(id, vcpu->arch.iamr);
break;
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
case KVM_REG_PPC_TFHAR:
*val = get_reg_val(id, vcpu->arch.tfhar);
break;
case KVM_REG_PPC_TFIAR:
*val = get_reg_val(id, vcpu->arch.tfiar);
break;
case KVM_REG_PPC_TEXASR:
*val = get_reg_val(id, vcpu->arch.texasr);
break;
#endif
case KVM_REG_PPC_FSCR:
*val = get_reg_val(id, vcpu->arch.fscr);
break;
case KVM_REG_PPC_PSPB:
*val = get_reg_val(id, vcpu->arch.pspb);
break;
case KVM_REG_PPC_EBBHR:
*val = get_reg_val(id, vcpu->arch.ebbhr);
break;
case KVM_REG_PPC_EBBRR:
*val = get_reg_val(id, vcpu->arch.ebbrr);
break;
case KVM_REG_PPC_BESCR:
*val = get_reg_val(id, vcpu->arch.bescr);
break;
case KVM_REG_PPC_TAR:
*val = get_reg_val(id, vcpu->arch.tar);
break;
case KVM_REG_PPC_DPDES:
*val = get_reg_val(id, vcpu->arch.vcore->dpdes);
break;
case KVM_REG_PPC_DAWR:
*val = get_reg_val(id, vcpu->arch.dawr);
break;
case KVM_REG_PPC_DAWRX:
*val = get_reg_val(id, vcpu->arch.dawrx);
break;
case KVM_REG_PPC_CIABR:
*val = get_reg_val(id, vcpu->arch.ciabr);
break;
case KVM_REG_PPC_IC:
*val = get_reg_val(id, vcpu->arch.ic);
break;
case KVM_REG_PPC_VTB:
*val = get_reg_val(id, vcpu->arch.vtb);
break;
case KVM_REG_PPC_CSIGR:
*val = get_reg_val(id, vcpu->arch.csigr);
break;
case KVM_REG_PPC_TACR:
*val = get_reg_val(id, vcpu->arch.tacr);
break;
case KVM_REG_PPC_TCSCR:
*val = get_reg_val(id, vcpu->arch.tcscr);
break;
case KVM_REG_PPC_PID:
*val = get_reg_val(id, vcpu->arch.pid);
break;
case KVM_REG_PPC_ACOP:
*val = get_reg_val(id, vcpu->arch.acop);
break;
case KVM_REG_PPC_WORT:
*val = get_reg_val(id, vcpu->arch.wort);
break;
#endif /* CONFIG_VSX */
case KVM_REG_PPC_VPA_ADDR:
spin_lock(&vcpu->arch.vpa_update_lock);
*val = get_reg_val(id, vcpu->arch.vpa.next_gpa);
@ -890,6 +997,9 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_DABR:
vcpu->arch.dabr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_DABRX:
vcpu->arch.dabrx = set_reg_val(id, *val) & ~DABRX_HYP;
break;
case KVM_REG_PPC_DSCR:
vcpu->arch.dscr = set_reg_val(id, *val);
break;
@ -905,7 +1015,7 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_UAMOR:
vcpu->arch.uamor = set_reg_val(id, *val);
break;
case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRA:
case KVM_REG_PPC_MMCR0 ... KVM_REG_PPC_MMCRS:
i = id - KVM_REG_PPC_MMCR0;
vcpu->arch.mmcr[i] = set_reg_val(id, *val);
break;
@ -913,33 +1023,90 @@ static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
i = id - KVM_REG_PPC_PMC1;
vcpu->arch.pmc[i] = set_reg_val(id, *val);
break;
case KVM_REG_PPC_SPMC1 ... KVM_REG_PPC_SPMC2:
i = id - KVM_REG_PPC_SPMC1;
vcpu->arch.spmc[i] = set_reg_val(id, *val);
break;
case KVM_REG_PPC_SIAR:
vcpu->arch.siar = set_reg_val(id, *val);
break;
case KVM_REG_PPC_SDAR:
vcpu->arch.sdar = set_reg_val(id, *val);
break;
#ifdef CONFIG_VSX
case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
/* VSX => FP reg i is stored in arch.vsr[2*i] */
long int i = id - KVM_REG_PPC_FPR0;
vcpu->arch.vsr[2 * i] = set_reg_val(id, *val);
} else {
/* let generic code handle it */
r = -EINVAL;
}
case KVM_REG_PPC_SIER:
vcpu->arch.sier = set_reg_val(id, *val);
break;
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31:
if (cpu_has_feature(CPU_FTR_VSX)) {
long int i = id - KVM_REG_PPC_VSR0;
vcpu->arch.vsr[2 * i] = val->vsxval[0];
vcpu->arch.vsr[2 * i + 1] = val->vsxval[1];
} else {
r = -ENXIO;
}
case KVM_REG_PPC_IAMR:
vcpu->arch.iamr = set_reg_val(id, *val);
break;
#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
case KVM_REG_PPC_TFHAR:
vcpu->arch.tfhar = set_reg_val(id, *val);
break;
case KVM_REG_PPC_TFIAR:
vcpu->arch.tfiar = set_reg_val(id, *val);
break;
case KVM_REG_PPC_TEXASR:
vcpu->arch.texasr = set_reg_val(id, *val);
break;
#endif
case KVM_REG_PPC_FSCR:
vcpu->arch.fscr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_PSPB:
vcpu->arch.pspb = set_reg_val(id, *val);
break;
case KVM_REG_PPC_EBBHR:
vcpu->arch.ebbhr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_EBBRR:
vcpu->arch.ebbrr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_BESCR:
vcpu->arch.bescr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_TAR:
vcpu->arch.tar = set_reg_val(id, *val);
break;
case KVM_REG_PPC_DPDES:
vcpu->arch.vcore->dpdes = set_reg_val(id, *val);
break;
case KVM_REG_PPC_DAWR:
vcpu->arch.dawr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_DAWRX:
vcpu->arch.dawrx = set_reg_val(id, *val) & ~DAWRX_HYP;
break;
case KVM_REG_PPC_CIABR:
vcpu->arch.ciabr = set_reg_val(id, *val);
/* Don't allow setting breakpoints in hypervisor code */
if ((vcpu->arch.ciabr & CIABR_PRIV) == CIABR_PRIV_HYPER)
vcpu->arch.ciabr &= ~CIABR_PRIV; /* disable */
break;
case KVM_REG_PPC_IC:
vcpu->arch.ic = set_reg_val(id, *val);
break;
case KVM_REG_PPC_VTB:
vcpu->arch.vtb = set_reg_val(id, *val);
break;
case KVM_REG_PPC_CSIGR:
vcpu->arch.csigr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_TACR:
vcpu->arch.tacr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_TCSCR:
vcpu->arch.tcscr = set_reg_val(id, *val);
break;
case KVM_REG_PPC_PID:
vcpu->arch.pid = set_reg_val(id, *val);
break;
case KVM_REG_PPC_ACOP:
vcpu->arch.acop = set_reg_val(id, *val);
break;
case KVM_REG_PPC_WORT:
vcpu->arch.wort = set_reg_val(id, *val);
break;
#endif /* CONFIG_VSX */
case KVM_REG_PPC_VPA_ADDR:
addr = set_reg_val(id, *val);
r = -EINVAL;
@ -1017,6 +1184,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
spin_lock_init(&vcpu->arch.vpa_update_lock);
spin_lock_init(&vcpu->arch.tbacct_lock);
vcpu->arch.busy_preempt = TB_NIL;
vcpu->arch.intr_msr = MSR_SF | MSR_ME;
kvmppc_mmu_book3s_hv_init(vcpu);
@ -1034,6 +1202,8 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
init_waitqueue_head(&vcore->wq);
vcore->preempt_tb = TB_NIL;
vcore->lpcr = kvm->arch.lpcr;
vcore->first_vcpuid = core * threads_per_core;
vcore->kvm = kvm;
}
kvm->arch.vcores[core] = vcore;
kvm->arch.online_vcores++;
@ -1047,6 +1217,7 @@ static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
++vcore->num_threads;
spin_unlock(&vcore->lock);
vcpu->arch.vcore = vcore;
vcpu->arch.ptid = vcpu->vcpu_id - vcore->first_vcpuid;
vcpu->arch.cpu_type = KVM_CPU_3S_64;
kvmppc_sanity_check(vcpu);
@ -1110,7 +1281,7 @@ static void kvmppc_end_cede(struct kvm_vcpu *vcpu)
}
}
extern int __kvmppc_vcore_entry(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu);
extern void __kvmppc_vcore_entry(void);
static void kvmppc_remove_runnable(struct kvmppc_vcore *vc,
struct kvm_vcpu *vcpu)
@ -1184,13 +1355,16 @@ static void kvmppc_start_thread(struct kvm_vcpu *vcpu)
tpaca = &paca[cpu];
tpaca->kvm_hstate.kvm_vcpu = vcpu;
tpaca->kvm_hstate.kvm_vcore = vc;
tpaca->kvm_hstate.napping = 0;
tpaca->kvm_hstate.ptid = vcpu->arch.ptid;
vcpu->cpu = vc->pcpu;
smp_wmb();
#if defined(CONFIG_PPC_ICP_NATIVE) && defined(CONFIG_SMP)
if (vcpu->arch.ptid) {
if (cpu != smp_processor_id()) {
#ifdef CONFIG_KVM_XICS
xics_wake_cpu(cpu);
++vc->n_woken;
#endif
if (vcpu->arch.ptid)
++vc->n_woken;
}
#endif
}
@ -1247,10 +1421,10 @@ static int on_primary_thread(void)
*/
static void kvmppc_run_core(struct kvmppc_vcore *vc)
{
struct kvm_vcpu *vcpu, *vcpu0, *vnext;
struct kvm_vcpu *vcpu, *vnext;
long ret;
u64 now;
int ptid, i, need_vpa_update;
int i, need_vpa_update;
int srcu_idx;
struct kvm_vcpu *vcpus_to_update[threads_per_core];
@ -1287,25 +1461,6 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
spin_lock(&vc->lock);
}
/*
* Assign physical thread IDs, first to non-ceded vcpus
* and then to ceded ones.
*/
ptid = 0;
vcpu0 = NULL;
list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) {
if (!vcpu->arch.ceded) {
if (!ptid)
vcpu0 = vcpu;
vcpu->arch.ptid = ptid++;
}
}
if (!vcpu0)
goto out; /* nothing to run; should never happen */
list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list)
if (vcpu->arch.ceded)
vcpu->arch.ptid = ptid++;
/*
* Make sure we are running on thread 0, and that
* secondary threads are offline.
@ -1322,15 +1477,19 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
kvmppc_create_dtl_entry(vcpu, vc);
}
/* Set this explicitly in case thread 0 doesn't have a vcpu */
get_paca()->kvm_hstate.kvm_vcore = vc;
get_paca()->kvm_hstate.ptid = 0;
vc->vcore_state = VCORE_RUNNING;
preempt_disable();
spin_unlock(&vc->lock);
kvm_guest_enter();
srcu_idx = srcu_read_lock(&vcpu0->kvm->srcu);
srcu_idx = srcu_read_lock(&vc->kvm->srcu);
__kvmppc_vcore_entry(NULL, vcpu0);
__kvmppc_vcore_entry();
spin_lock(&vc->lock);
/* disable sending of IPIs on virtual external irqs */
@ -1345,7 +1504,7 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
vc->vcore_state = VCORE_EXITING;
spin_unlock(&vc->lock);
srcu_read_unlock(&vcpu0->kvm->srcu, srcu_idx);
srcu_read_unlock(&vc->kvm->srcu, srcu_idx);
/* make sure updates to secondary vcpu structs are visible now */
smp_mb();
@ -1453,7 +1612,6 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
if (!signal_pending(current)) {
if (vc->vcore_state == VCORE_RUNNING &&
VCORE_EXIT_COUNT(vc) == 0) {
vcpu->arch.ptid = vc->n_runnable - 1;
kvmppc_create_dtl_entry(vcpu, vc);
kvmppc_start_thread(vcpu);
} else if (vc->vcore_state == VCORE_SLEEPING) {
@ -2048,6 +2206,9 @@ static int kvmppc_core_init_vm_hv(struct kvm *kvm)
LPCR_VPM0 | LPCR_VPM1;
kvm->arch.vrma_slb_v = SLB_VSID_B_1T |
(VRMA_VSID << SLB_VSID_SHIFT_1T);
/* On POWER8 turn on online bit to enable PURR/SPURR */
if (cpu_has_feature(CPU_FTR_ARCH_207S))
lpcr |= LPCR_ONL;
}
kvm->arch.lpcr = lpcr;
@ -2222,3 +2383,5 @@ static void kvmppc_book3s_exit_hv(void)
module_init(kvmppc_book3s_init_hv);
module_exit(kvmppc_book3s_exit_hv);
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");

8
arch/powerpc/kvm/book3s_hv_interrupts.S
View File

@ -35,7 +35,7 @@
****************************************************************************/
/* Registers:
* r4: vcpu pointer
* none
*/
_GLOBAL(__kvmppc_vcore_entry)
@ -57,9 +57,11 @@ BEGIN_FTR_SECTION
std r3, HSTATE_DSCR(r13)
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
BEGIN_FTR_SECTION
/* Save host DABR */
mfspr r3, SPRN_DABR
std r3, HSTATE_DABR(r13)
END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
/* Hard-disable interrupts */
mfmsr r10
@ -69,7 +71,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
mtmsrd r10,1
/* Save host PMU registers */
/* R4 is live here (vcpu pointer) but not r3 or r5 */
li r3, 1
sldi r3, r3, 31 /* MMCR0_FC (freeze counters) bit */
mfspr r7, SPRN_MMCR0 /* save MMCR0 */
@ -134,16 +135,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
* enters the guest with interrupts enabled.
*/
BEGIN_FTR_SECTION
ld r4, HSTATE_KVM_VCPU(r13)
ld r0, VCPU_PENDING_EXC(r4)
li r7, (1 << BOOK3S_IRQPRIO_EXTERNAL)
oris r7, r7, (1 << BOOK3S_IRQPRIO_EXTERNAL_LEVEL)@h
and. r0, r0, r7
beq 32f
mr r31, r4
lhz r3, PACAPACAINDEX(r13)
bl smp_send_reschedule
nop
mr r4, r31
32:
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
#endif /* CONFIG_SMP */

8
arch/powerpc/kvm/book3s_hv_rm_mmu.c
View File

@ -134,7 +134,7 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index,
unlock_rmap(rmap);
}
static pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva,
static pte_t lookup_linux_pte_and_update(pgd_t *pgdir, unsigned long hva,
int writing, unsigned long *pte_sizep)
{
pte_t *ptep;
@ -232,7 +232,8 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
/* Look up the Linux PTE for the backing page */
pte_size = psize;
pte = lookup_linux_pte(pgdir, hva, writing, &pte_size);
pte = lookup_linux_pte_and_update(pgdir, hva, writing,
&pte_size);
if (pte_present(pte)) {
if (writing && !pte_write(pte))
/* make the actual HPTE be read-only */
@ -672,7 +673,8 @@ long kvmppc_h_protect(struct kvm_vcpu *vcpu, unsigned long flags,
memslot = __gfn_to_memslot(kvm_memslots(kvm), gfn);
if (memslot) {
hva = __gfn_to_hva_memslot(memslot, gfn);
pte = lookup_linux_pte(pgdir, hva, 1, &psize);
pte = lookup_linux_pte_and_update(pgdir, hva,
1, &psize);
if (pte_present(pte) && !pte_write(pte))
r = hpte_make_readonly(r);
}

1191
arch/powerpc/kvm/book3s_hv_rmhandlers.S
View File

File diff suppressed because it is too large Load Diff

169
arch/powerpc/kvm/book3s_paired_singles.c
View File

@ -160,7 +160,7 @@
static inline void kvmppc_sync_qpr(struct kvm_vcpu *vcpu, int rt)
{
kvm_cvt_df(&vcpu->arch.fpr[rt], &vcpu->arch.qpr[rt]);
kvm_cvt_df(&VCPU_FPR(vcpu, rt), &vcpu->arch.qpr[rt]);
}
static void kvmppc_inject_pf(struct kvm_vcpu *vcpu, ulong eaddr, bool is_store)
@ -207,11 +207,11 @@ static int kvmppc_emulate_fpr_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* put in registers */
switch (ls_type) {
case FPU_LS_SINGLE:
kvm_cvt_fd((u32*)tmp, &vcpu->arch.fpr[rs]);
kvm_cvt_fd((u32*)tmp, &VCPU_FPR(vcpu, rs));
vcpu->arch.qpr[rs] = *((u32*)tmp);
break;
case FPU_LS_DOUBLE:
vcpu->arch.fpr[rs] = *((u64*)tmp);
VCPU_FPR(vcpu, rs) = *((u64*)tmp);
break;
}
@ -233,18 +233,18 @@ static int kvmppc_emulate_fpr_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
switch (ls_type) {
case FPU_LS_SINGLE:
kvm_cvt_df(&vcpu->arch.fpr[rs], (u32*)tmp);
kvm_cvt_df(&VCPU_FPR(vcpu, rs), (u32*)tmp);
val = *((u32*)tmp);
len = sizeof(u32);
break;
case FPU_LS_SINGLE_LOW:
*((u32*)tmp) = vcpu->arch.fpr[rs];
val = vcpu->arch.fpr[rs] & 0xffffffff;
*((u32*)tmp) = VCPU_FPR(vcpu, rs);
val = VCPU_FPR(vcpu, rs) & 0xffffffff;
len = sizeof(u32);
break;
case FPU_LS_DOUBLE:
*((u64*)tmp) = vcpu->arch.fpr[rs];
val = vcpu->arch.fpr[rs];
*((u64*)tmp) = VCPU_FPR(vcpu, rs);
val = VCPU_FPR(vcpu, rs);
len = sizeof(u64);
break;
default:
@ -301,7 +301,7 @@ static int kvmppc_emulate_psq_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
emulated = EMULATE_DONE;
/* put in registers */
kvm_cvt_fd(&tmp[0], &vcpu->arch.fpr[rs]);
kvm_cvt_fd(&tmp[0], &VCPU_FPR(vcpu, rs));
vcpu->arch.qpr[rs] = tmp[1];
dprintk(KERN_INFO "KVM: PSQ_LD [0x%x, 0x%x] at 0x%lx (%d)\n", tmp[0],
@ -319,7 +319,7 @@ static int kvmppc_emulate_psq_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
u32 tmp[2];
int len = w ? sizeof(u32) : sizeof(u64);
kvm_cvt_df(&vcpu->arch.fpr[rs], &tmp[0]);
kvm_cvt_df(&VCPU_FPR(vcpu, rs), &tmp[0]);
tmp[1] = vcpu->arch.qpr[rs];
r = kvmppc_st(vcpu, &addr, len, tmp, true);
@ -512,7 +512,6 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
u32 *src2, u32 *src3))
{
u32 *qpr = vcpu->arch.qpr;
u64 *fpr = vcpu->arch.fpr;
u32 ps0_out;
u32 ps0_in1, ps0_in2, ps0_in3;
u32 ps1_in1, ps1_in2, ps1_in3;
@ -521,20 +520,20 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
kvm_cvt_df(&fpr[reg_in3], &ps0_in3);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in1), &ps0_in1);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in2), &ps0_in2);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in3), &ps0_in3);
if (scalar & SCALAR_LOW)
ps0_in2 = qpr[reg_in2];
func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3);
func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in1, &ps0_in2, &ps0_in3);
dprintk(KERN_INFO "PS3 ps0 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
ps0_in1, ps0_in2, ps0_in3, ps0_out);
if (!(scalar & SCALAR_NO_PS0))
kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
/* PS1 */
ps1_in1 = qpr[reg_in1];
@ -545,7 +544,7 @@ static int kvmppc_ps_three_in(struct kvm_vcpu *vcpu, bool rc,
ps1_in2 = ps0_in2;
if (!(scalar & SCALAR_NO_PS1))
func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3);
func(&vcpu->arch.fp.fpscr, &qpr[reg_out], &ps1_in1, &ps1_in2, &ps1_in3);
dprintk(KERN_INFO "PS3 ps1 -> f(0x%x, 0x%x, 0x%x) = 0x%x\n",
ps1_in1, ps1_in2, ps1_in3, qpr[reg_out]);
@ -561,7 +560,6 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
u32 *src2))
{
u32 *qpr = vcpu->arch.qpr;
u64 *fpr = vcpu->arch.fpr;
u32 ps0_out;
u32 ps0_in1, ps0_in2;
u32 ps1_out;
@ -571,20 +569,20 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
kvm_cvt_df(&fpr[reg_in1], &ps0_in1);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in1), &ps0_in1);
if (scalar & SCALAR_LOW)
ps0_in2 = qpr[reg_in2];
else
kvm_cvt_df(&fpr[reg_in2], &ps0_in2);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in2), &ps0_in2);
func(&vcpu->arch.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in1, &ps0_in2);
if (!(scalar & SCALAR_NO_PS0)) {
dprintk(KERN_INFO "PS2 ps0 -> f(0x%x, 0x%x) = 0x%x\n",
ps0_in1, ps0_in2, ps0_out);
kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
}
/* PS1 */
@ -594,7 +592,7 @@ static int kvmppc_ps_two_in(struct kvm_vcpu *vcpu, bool rc,
if (scalar & SCALAR_HIGH)
ps1_in2 = ps0_in2;
func(&vcpu->arch.fpscr, &ps1_out, &ps1_in1, &ps1_in2);
func(&vcpu->arch.fp.fpscr, &ps1_out, &ps1_in1, &ps1_in2);
if (!(scalar & SCALAR_NO_PS1)) {
qpr[reg_out] = ps1_out;
@ -612,7 +610,6 @@ static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
u32 *dst, u32 *src1))
{
u32 *qpr = vcpu->arch.qpr;
u64 *fpr = vcpu->arch.fpr;
u32 ps0_out, ps0_in;
u32 ps1_in;
@ -620,17 +617,17 @@ static int kvmppc_ps_one_in(struct kvm_vcpu *vcpu, bool rc,
WARN_ON(rc);
/* PS0 */
kvm_cvt_df(&fpr[reg_in], &ps0_in);
func(&vcpu->arch.fpscr, &ps0_out, &ps0_in);
kvm_cvt_df(&VCPU_FPR(vcpu, reg_in), &ps0_in);
func(&vcpu->arch.fp.fpscr, &ps0_out, &ps0_in);
dprintk(KERN_INFO "PS1 ps0 -> f(0x%x) = 0x%x\n",
ps0_in, ps0_out);
kvm_cvt_fd(&ps0_out, &fpr[reg_out]);
kvm_cvt_fd(&ps0_out, &VCPU_FPR(vcpu, reg_out));
/* PS1 */
ps1_in = qpr[reg_in];
func(&vcpu->arch.fpscr, &qpr[reg_out], &ps1_in);
func(&vcpu->arch.fp.fpscr, &qpr[reg_out], &ps1_in);
dprintk(KERN_INFO "PS1 ps1 -> f(0x%x) = 0x%x\n",
ps1_in, qpr[reg_out]);
@ -649,10 +646,10 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
int ax_rc = inst_get_field(inst, 21, 25);
short full_d = inst_get_field(inst, 16, 31);
u64 *fpr_d = &vcpu->arch.fpr[ax_rd];
u64 *fpr_a = &vcpu->arch.fpr[ax_ra];
u64 *fpr_b = &vcpu->arch.fpr[ax_rb];
u64 *fpr_c = &vcpu->arch.fpr[ax_rc];
u64 *fpr_d = &VCPU_FPR(vcpu, ax_rd);
u64 *fpr_a = &VCPU_FPR(vcpu, ax_ra);
u64 *fpr_b = &VCPU_FPR(vcpu, ax_rb);
u64 *fpr_c = &VCPU_FPR(vcpu, ax_rc);
bool rcomp = (inst & 1) ? true : false;
u32 cr = kvmppc_get_cr(vcpu);
@ -674,11 +671,11 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
/* Do we need to clear FE0 / FE1 here? Don't think so. */
#ifdef DEBUG
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fp.fpr); i++) {
u32 f;
kvm_cvt_df(&vcpu->arch.fpr[i], &f);
kvm_cvt_df(&VCPU_FPR(vcpu, i), &f);
dprintk(KERN_INFO "FPR[%d] = 0x%x / 0x%llx QPR[%d] = 0x%x\n",
i, f, vcpu->arch.fpr[i], i, vcpu->arch.qpr[i]);
i, f, VCPU_FPR(vcpu, i), i, vcpu->arch.qpr[i]);
}
#endif
@ -764,8 +761,8 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
}
case OP_4X_PS_NEG:
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
vcpu->arch.fpr[ax_rd] ^= 0x8000000000000000ULL;
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
VCPU_FPR(vcpu, ax_rd) ^= 0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] ^= 0x80000000;
break;
@ -775,7 +772,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_4X_PS_MR:
WARN_ON(rcomp);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
case OP_4X_PS_CMPO1:
@ -784,44 +781,44 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_4X_PS_NABS:
WARN_ON(rcomp);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
vcpu->arch.fpr[ax_rd] |= 0x8000000000000000ULL;
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
VCPU_FPR(vcpu, ax_rd) |= 0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] |= 0x80000000;
break;
case OP_4X_PS_ABS:
WARN_ON(rcomp);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rb];
vcpu->arch.fpr[ax_rd] &= ~0x8000000000000000ULL;
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rb);
VCPU_FPR(vcpu, ax_rd) &= ~0x8000000000000000ULL;
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
vcpu->arch.qpr[ax_rd] &= ~0x80000000;
break;
case OP_4X_PS_MERGE00:
WARN_ON(rcomp);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
/* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_ra);
/* vcpu->arch.qpr[ax_rd] = VCPU_FPR(vcpu, ax_rb); */
kvm_cvt_df(&VCPU_FPR(vcpu, ax_rb),
&vcpu->arch.qpr[ax_rd]);
break;
case OP_4X_PS_MERGE01:
WARN_ON(rcomp);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_ra];
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_ra);
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
case OP_4X_PS_MERGE10:
WARN_ON(rcomp);
/* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
/* VCPU_FPR(vcpu, ax_rd) = vcpu->arch.qpr[ax_ra]; */
kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
&vcpu->arch.fpr[ax_rd]);
/* vcpu->arch.qpr[ax_rd] = vcpu->arch.fpr[ax_rb]; */
kvm_cvt_df(&vcpu->arch.fpr[ax_rb],
&VCPU_FPR(vcpu, ax_rd));
/* vcpu->arch.qpr[ax_rd] = VCPU_FPR(vcpu, ax_rb); */
kvm_cvt_df(&VCPU_FPR(vcpu, ax_rb),
&vcpu->arch.qpr[ax_rd]);
break;
case OP_4X_PS_MERGE11:
WARN_ON(rcomp);
/* vcpu->arch.fpr[ax_rd] = vcpu->arch.qpr[ax_ra]; */
/* VCPU_FPR(vcpu, ax_rd) = vcpu->arch.qpr[ax_ra]; */
kvm_cvt_fd(&vcpu->arch.qpr[ax_ra],
&vcpu->arch.fpr[ax_rd]);
&VCPU_FPR(vcpu, ax_rd));
vcpu->arch.qpr[ax_rd] = vcpu->arch.qpr[ax_rb];
break;
}
@ -856,7 +853,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
case OP_4A_PS_SUM1:
emulated = kvmppc_ps_two_in(vcpu, rcomp, ax_rd,
ax_rb, ax_ra, SCALAR_NO_PS0 | SCALAR_HIGH, fps_fadds);
vcpu->arch.fpr[ax_rd] = vcpu->arch.fpr[ax_rc];
VCPU_FPR(vcpu, ax_rd) = VCPU_FPR(vcpu, ax_rc);
break;
case OP_4A_PS_SUM0:
emulated = kvmppc_ps_two_in(vcpu, rcomp, ax_rd,
@ -1106,45 +1103,45 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
case 59:
switch (inst_get_field(inst, 21, 30)) {
case OP_59_FADDS:
fpd_fadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FSUBS:
fpd_fsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FDIVS:
fpd_fdivs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fdivs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FRES:
fpd_fres(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fres(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FRSQRTES:
fpd_frsqrtes(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_frsqrtes(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
}
switch (inst_get_field(inst, 26, 30)) {
case OP_59_FMULS:
fpd_fmuls(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c);
fpd_fmuls(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FMSUBS:
fpd_fmsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fmsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FMADDS:
fpd_fmadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fmadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FNMSUBS:
fpd_fnmsubs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fnmsubs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_59_FNMADDS:
fpd_fnmadds(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fnmadds(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
}
@ -1159,12 +1156,12 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
break;
case OP_63_MFFS:
/* XXX missing CR */
*fpr_d = vcpu->arch.fpscr;
*fpr_d = vcpu->arch.fp.fpscr;
break;
case OP_63_MTFSF:
/* XXX missing fm bits */
/* XXX missing CR */
vcpu->arch.fpscr = *fpr_b;
vcpu->arch.fp.fpscr = *fpr_b;
break;
case OP_63_FCMPU:
{
@ -1172,7 +1169,7 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
u32 cr0_mask = 0xf0000000;
u32 cr_shift = inst_get_field(inst, 6, 8) * 4;
fpd_fcmpu(&vcpu->arch.fpscr, &tmp_cr, fpr_a, fpr_b);
fpd_fcmpu(&vcpu->arch.fp.fpscr, &tmp_cr, fpr_a, fpr_b);
cr &= ~(cr0_mask >> cr_shift);
cr |= (cr & cr0_mask) >> cr_shift;
break;
@ -1183,40 +1180,40 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
u32 cr0_mask = 0xf0000000;
u32 cr_shift = inst_get_field(inst, 6, 8) * 4;
fpd_fcmpo(&vcpu->arch.fpscr, &tmp_cr, fpr_a, fpr_b);
fpd_fcmpo(&vcpu->arch.fp.fpscr, &tmp_cr, fpr_a, fpr_b);
cr &= ~(cr0_mask >> cr_shift);
cr |= (cr & cr0_mask) >> cr_shift;
break;
}
case OP_63_FNEG:
fpd_fneg(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fneg(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FMR:
*fpr_d = *fpr_b;
break;
case OP_63_FABS:
fpd_fabs(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fabs(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FCPSGN:
fpd_fcpsgn(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fcpsgn(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FDIV:
fpd_fdiv(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fdiv(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FADD:
fpd_fadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FSUB:
fpd_fsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_b);
fpd_fsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_b);
break;
case OP_63_FCTIW:
fpd_fctiw(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fctiw(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FCTIWZ:
fpd_fctiwz(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fctiwz(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
break;
case OP_63_FRSP:
fpd_frsp(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_frsp(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
kvmppc_sync_qpr(vcpu, ax_rd);
break;
case OP_63_FRSQRTE:
@ -1224,39 +1221,39 @@ int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu)
double one = 1.0f;
/* fD = sqrt(fB) */
fpd_fsqrt(&vcpu->arch.fpscr, &cr, fpr_d, fpr_b);
fpd_fsqrt(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_b);
/* fD = 1.0f / fD */
fpd_fdiv(&vcpu->arch.fpscr, &cr, fpr_d, (u64*)&one, fpr_d);
fpd_fdiv(&vcpu->arch.fp.fpscr, &cr, fpr_d, (u64*)&one, fpr_d);
break;
}
}
switch (inst_get_field(inst, 26, 30)) {
case OP_63_FMUL:
fpd_fmul(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c);
fpd_fmul(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c);
break;
case OP_63_FSEL:
fpd_fsel(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fsel(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FMSUB:
fpd_fmsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fmsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FMADD:
fpd_fmadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fmadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FNMSUB:
fpd_fnmsub(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fnmsub(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
case OP_63_FNMADD:
fpd_fnmadd(&vcpu->arch.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
fpd_fnmadd(&vcpu->arch.fp.fpscr, &cr, fpr_d, fpr_a, fpr_c, fpr_b);
break;
}
break;
}
#ifdef DEBUG
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++) {
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fp.fpr); i++) {
u32 f;
kvm_cvt_df(&vcpu->arch.fpr[i], &f);
kvm_cvt_df(&VCPU_FPR(vcpu, i), &f);
dprintk(KERN_INFO "FPR[%d] = 0x%x\n", i, f);
}
#endif

155
arch/powerpc/kvm/book3s_pr.c
View File

@ -41,6 +41,7 @@
#include <linux/vmalloc.h>
#include <linux/highmem.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include "book3s.h"
@ -566,12 +567,6 @@ static inline int get_fpr_index(int i)
void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
{
struct thread_struct *t = &current->thread;
u64 *vcpu_fpr = vcpu->arch.fpr;
#ifdef CONFIG_VSX
u64 *vcpu_vsx = vcpu->arch.vsr;
#endif
u64 *thread_fpr = &t->fp_state.fpr[0][0];
int i;
/*
* VSX instructions can access FP and vector registers, so if
@ -594,26 +589,16 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
* both the traditional FP registers and the added VSX
* registers into thread.fp_state.fpr[].
*/
if (current->thread.regs->msr & MSR_FP)
if (t->regs->msr & MSR_FP)
giveup_fpu(current);
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++)
vcpu_fpr[i] = thread_fpr[get_fpr_index(i)];
vcpu->arch.fpscr = t->fp_state.fpscr;
#ifdef CONFIG_VSX
if (cpu_has_feature(CPU_FTR_VSX))
for (i = 0; i < ARRAY_SIZE(vcpu->arch.vsr) / 2; i++)
vcpu_vsx[i] = thread_fpr[get_fpr_index(i) + 1];
#endif
t->fp_save_area = NULL;
}
#ifdef CONFIG_ALTIVEC
if (msr & MSR_VEC) {
if (current->thread.regs->msr & MSR_VEC)
giveup_altivec(current);
memcpy(vcpu->arch.vr, t->vr_state.vr, sizeof(vcpu->arch.vr));
vcpu->arch.vscr = t->vr_state.vscr;
t->vr_save_area = NULL;
}
#endif
@ -661,12 +646,6 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
ulong msr)
{
struct thread_struct *t = &current->thread;
u64 *vcpu_fpr = vcpu->arch.fpr;
#ifdef CONFIG_VSX
u64 *vcpu_vsx = vcpu->arch.vsr;
#endif
u64 *thread_fpr = &t->fp_state.fpr[0][0];
int i;
/* When we have paired singles, we emulate in software */
if (vcpu->arch.hflags & BOOK3S_HFLAG_PAIRED_SINGLE)
@ -704,27 +683,20 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
#endif
if (msr & MSR_FP) {
for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++)
thread_fpr[get_fpr_index(i)] = vcpu_fpr[i];
#ifdef CONFIG_VSX
for (i = 0; i < ARRAY_SIZE(vcpu->arch.vsr) / 2; i++)
thread_fpr[get_fpr_index(i) + 1] = vcpu_vsx[i];
#endif
t->fp_state.fpscr = vcpu->arch.fpscr;
t->fpexc_mode = 0;
kvmppc_load_up_fpu();
enable_kernel_fp();
load_fp_state(&vcpu->arch.fp);
t->fp_save_area = &vcpu->arch.fp;
}
if (msr & MSR_VEC) {
#ifdef CONFIG_ALTIVEC
memcpy(t->vr_state.vr, vcpu->arch.vr, sizeof(vcpu->arch.vr));
t->vr_state.vscr = vcpu->arch.vscr;
t->vrsave = -1;
kvmppc_load_up_altivec();
enable_kernel_altivec();
load_vr_state(&vcpu->arch.vr);
t->vr_save_area = &vcpu->arch.vr;
#endif
}
current->thread.regs->msr |= msr;
t->regs->msr |= msr;
vcpu->arch.guest_owned_ext |= msr;
kvmppc_recalc_shadow_msr(vcpu);
@ -743,11 +715,15 @@ static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
if (!lost_ext)
return;
if (lost_ext & MSR_FP)
kvmppc_load_up_fpu();
if (lost_ext & MSR_FP) {
enable_kernel_fp();
load_fp_state(&vcpu->arch.fp);
}
#ifdef CONFIG_ALTIVEC
if (lost_ext & MSR_VEC)
kvmppc_load_up_altivec();
if (lost_ext & MSR_VEC) {
enable_kernel_altivec();
load_vr_state(&vcpu->arch.vr);
}
#endif
current->thread.regs->msr |= lost_ext;
}
@ -873,6 +849,7 @@ int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
/* We're good on these - the host merely wanted to get our attention */
case BOOK3S_INTERRUPT_DECREMENTER:
case BOOK3S_INTERRUPT_HV_DECREMENTER:
case BOOK3S_INTERRUPT_DOORBELL:
vcpu->stat.dec_exits++;
r = RESUME_GUEST;
break;
@ -1045,14 +1022,14 @@ int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
* and if we really did time things so badly, then we just exit
* again due to a host external interrupt.
*/
local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
if (s <= 0) {
local_irq_enable();
if (s <= 0)
r = s;
} else {
else {
/* interrupts now hard-disabled */
kvmppc_fix_ee_before_entry();
}
kvmppc_handle_lost_ext(vcpu);
}
@ -1133,19 +1110,6 @@ static int kvmppc_get_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
case KVM_REG_PPC_HIOR:
*val = get_reg_val(id, to_book3s(vcpu)->hior);
break;
#ifdef CONFIG_VSX
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
long int i = id - KVM_REG_PPC_VSR0;
if (!cpu_has_feature(CPU_FTR_VSX)) {
r = -ENXIO;
break;
}
val->vsxval[0] = vcpu->arch.fpr[i];
val->vsxval[1] = vcpu->arch.vsr[i];
break;
}
#endif /* CONFIG_VSX */
default:
r = -EINVAL;
break;
@ -1164,19 +1128,6 @@ static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
to_book3s(vcpu)->hior = set_reg_val(id, *val);
to_book3s(vcpu)->hior_explicit = true;
break;
#ifdef CONFIG_VSX
case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
long int i = id - KVM_REG_PPC_VSR0;
if (!cpu_has_feature(CPU_FTR_VSX)) {
r = -ENXIO;
break;
}
vcpu->arch.fpr[i] = val->vsxval[0];
vcpu->arch.vsr[i] = val->vsxval[1];
break;
}
#endif /* CONFIG_VSX */
default:
r = -EINVAL;
break;
@ -1274,17 +1225,9 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
{
int ret;
struct thread_fp_state fp;
int fpexc_mode;
#ifdef CONFIG_ALTIVEC
struct thread_vr_state vr;
unsigned long uninitialized_var(vrsave);
int used_vr;
#endif
#ifdef CONFIG_VSX
int used_vsr;
#endif
ulong ext_msr;
/* Check if we can run the vcpu at all */
if (!vcpu->arch.sane) {
@ -1299,40 +1242,27 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
* really did time things so badly, then we just exit again due to
* a host external interrupt.
*/
local_irq_disable();
ret = kvmppc_prepare_to_enter(vcpu);
if (ret <= 0) {
local_irq_enable();
if (ret <= 0)
goto out;
}
/* interrupts now hard-disabled */
/* Save FPU state in stack */
/* Save FPU state in thread_struct */
if (current->thread.regs->msr & MSR_FP)
giveup_fpu(current);
fp = current->thread.fp_state;
fpexc_mode = current->thread.fpexc_mode;
#ifdef CONFIG_ALTIVEC
/* Save Altivec state in stack */
used_vr = current->thread.used_vr;
if (used_vr) {
if (current->thread.regs->msr & MSR_VEC)
giveup_altivec(current);
vr = current->thread.vr_state;
vrsave = current->thread.vrsave;
}
/* Save Altivec state in thread_struct */
if (current->thread.regs->msr & MSR_VEC)
giveup_altivec(current);
#endif
#ifdef CONFIG_VSX
/* Save VSX state in stack */
used_vsr = current->thread.used_vsr;
if (used_vsr && (current->thread.regs->msr & MSR_VSX))
/* Save VSX state in thread_struct */
if (current->thread.regs->msr & MSR_VSX)
__giveup_vsx(current);
#endif
/* Remember the MSR with disabled extensions */
ext_msr = current->thread.regs->msr;
/* Preload FPU if it's enabled */
if (vcpu->arch.shared->msr & MSR_FP)
kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
@ -1347,25 +1277,6 @@ static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
/* Make sure we save the guest FPU/Altivec/VSX state */
kvmppc_giveup_ext(vcpu, MSR_FP | MSR_VEC | MSR_VSX);
current->thread.regs->msr = ext_msr;
/* Restore FPU/VSX state from stack */
current->thread.fp_state = fp;
current->thread.fpexc_mode = fpexc_mode;
#ifdef CONFIG_ALTIVEC
/* Restore Altivec state from stack */
if (used_vr && current->thread.used_vr) {
current->thread.vr_state = vr;
current->thread.vrsave = vrsave;
}
current->thread.used_vr = used_vr;
#endif
#ifdef CONFIG_VSX
current->thread.used_vsr = used_vsr;
#endif
out:
vcpu->mode = OUTSIDE_GUEST_MODE;
return ret;
@ -1606,4 +1517,6 @@ module_init(kvmppc_book3s_init_pr);
module_exit(kvmppc_book3s_exit_pr);
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");
#endif

47
arch/powerpc/kvm/book3s_rmhandlers.S
View File

@ -162,51 +162,4 @@ _GLOBAL(kvmppc_entry_trampoline)
mtsrr1 r6
RFI
#if defined(CONFIG_PPC_BOOK3S_32)
#define STACK_LR INT_FRAME_SIZE+4
/* load_up_xxx have to run with MSR_DR=0 on Book3S_32 */
#define MSR_EXT_START \
PPC_STL r20, _NIP(r1); \
mfmsr r20; \
LOAD_REG_IMMEDIATE(r3, MSR_DR|MSR_EE); \
andc r3,r20,r3; /* Disable DR,EE */ \
mtmsr r3; \
sync
#define MSR_EXT_END \
mtmsr r20; /* Enable DR,EE */ \
sync; \
PPC_LL r20, _NIP(r1)
#elif defined(CONFIG_PPC_BOOK3S_64)
#define STACK_LR _LINK
#define MSR_EXT_START
#define MSR_EXT_END
#endif
/*
* Activate current's external feature (FPU/Altivec/VSX)
*/
#define define_load_up(what) \
\
_GLOBAL(kvmppc_load_up_ ## what); \
PPC_STLU r1, -INT_FRAME_SIZE(r1); \
mflr r3; \
PPC_STL r3, STACK_LR(r1); \
MSR_EXT_START; \
\
bl FUNC(load_up_ ## what); \
\
MSR_EXT_END; \
PPC_LL r3, STACK_LR(r1); \
mtlr r3; \
addi r1, r1, INT_FRAME_SIZE; \
blr
define_load_up(fpu)
#ifdef CONFIG_ALTIVEC
define_load_up(altivec)
#endif
#include "book3s_segment.S"

2
arch/powerpc/kvm/book3s_segment.S
View File

@ -361,6 +361,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_HVMODE)
beqa BOOK3S_INTERRUPT_DECREMENTER
cmpwi r12, BOOK3S_INTERRUPT_PERFMON
beqa BOOK3S_INTERRUPT_PERFMON
cmpwi r12, BOOK3S_INTERRUPT_DOORBELL
beqa BOOK3S_INTERRUPT_DOORBELL
RFI
kvmppc_handler_trampoline_exit_end:

4
arch/powerpc/kvm/book3s_xics.c
View File

@ -1246,8 +1246,10 @@ static int kvmppc_xics_create(struct kvm_device *dev, u32 type)
kvm->arch.xics = xics;
mutex_unlock(&kvm->lock);
if (ret)
if (ret) {
kfree(xics);
return ret;
}
xics_debugfs_init(xics);

44
arch/powerpc/kvm/booke.c
View File

@ -643,7 +643,7 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
local_irq_enable();
kvm_vcpu_block(vcpu);
clear_bit(KVM_REQ_UNHALT, &vcpu->requests);
local_irq_disable();
hard_irq_disable();
kvmppc_set_exit_type(vcpu, EMULATED_MTMSRWE_EXITS);
r = 1;
@ -682,34 +682,22 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
{
int ret, s;
struct debug_reg debug;
#ifdef CONFIG_PPC_FPU
struct thread_fp_state fp;
int fpexc_mode;
#endif
if (!vcpu->arch.sane) {
kvm_run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
return -EINVAL;
}
local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
if (s <= 0) {
local_irq_enable();
ret = s;
goto out;
}
/* interrupts now hard-disabled */
#ifdef CONFIG_PPC_FPU
/* Save userspace FPU state in stack */
enable_kernel_fp();
fp = current->thread.fp_state;
fpexc_mode = current->thread.fpexc_mode;
/* Restore guest FPU state to thread */
memcpy(current->thread.fp_state.fpr, vcpu->arch.fpr,
sizeof(vcpu->arch.fpr));
current->thread.fp_state.fpscr = vcpu->arch.fpscr;
/*
* Since we can't trap on MSR_FP in GS-mode, we consider the guest
@ -728,6 +716,7 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
debug = current->thread.debug;
current->thread.debug = vcpu->arch.shadow_dbg_reg;
vcpu->arch.pgdir = current->mm->pgd;
kvmppc_fix_ee_before_entry();
ret = __kvmppc_vcpu_run(kvm_run, vcpu);
@ -743,15 +732,6 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
kvmppc_save_guest_fp(vcpu);
vcpu->fpu_active = 0;
/* Save guest FPU state from thread */
memcpy(vcpu->arch.fpr, current->thread.fp_state.fpr,
sizeof(vcpu->arch.fpr));
vcpu->arch.fpscr = current->thread.fp_state.fpscr;
/* Restore userspace FPU state from stack */
current->thread.fp_state = fp;
current->thread.fpexc_mode = fpexc_mode;
#endif
out:
@ -898,17 +878,6 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
int s;
int idx;
#ifdef CONFIG_PPC64
WARN_ON(local_paca->irq_happened != 0);
#endif
/*
* We enter with interrupts disabled in hardware, but
* we need to call hard_irq_disable anyway to ensure that
* the software state is kept in sync.
*/
hard_irq_disable();
/* update before a new last_exit_type is rewritten */
kvmppc_update_timing_stats(vcpu);
@ -1217,12 +1186,11 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
* aren't already exiting to userspace for some other reason.
*/
if (!(r & RESUME_HOST)) {
local_irq_disable();
s = kvmppc_prepare_to_enter(vcpu);
if (s <= 0) {
local_irq_enable();
if (s <= 0)
r = (s << 2) | RESUME_HOST | (r & RESUME_FLAG_NV);
} else {
else {
/* interrupts now hard-disabled */
kvmppc_fix_ee_before_entry();
}
}

5
arch/powerpc/kvm/booke.h
View File

@ -136,7 +136,9 @@ static inline void kvmppc_load_guest_fp(struct kvm_vcpu *vcpu)
{
#ifdef CONFIG_PPC_FPU
if (vcpu->fpu_active && !(current->thread.regs->msr & MSR_FP)) {
load_up_fpu();
enable_kernel_fp();
load_fp_state(&vcpu->arch.fp);
current->thread.fp_save_area = &vcpu->arch.fp;
current->thread.regs->msr |= MSR_FP;
}
#endif
@ -151,6 +153,7 @@ static inline void kvmppc_save_guest_fp(struct kvm_vcpu *vcpu)
#ifdef CONFIG_PPC_FPU
if (vcpu->fpu_active && (current->thread.regs->msr & MSR_FP))
giveup_fpu(current);
current->thread.fp_save_area = NULL;
#endif
}

11
arch/powerpc/kvm/bookehv_interrupts.S
View File

@ -33,6 +33,8 @@
#ifdef CONFIG_64BIT
#include <asm/exception-64e.h>
#include <asm/hw_irq.h>
#include <asm/irqflags.h>
#else
#include "../kernel/head_booke.h" /* for THREAD_NORMSAVE() */
#endif
@ -467,6 +469,15 @@ _GLOBAL(kvmppc_resume_host)
mtspr SPRN_EPCR, r3
isync
#ifdef CONFIG_64BIT
/*
* We enter with interrupts disabled in hardware, but
* we need to call RECONCILE_IRQ_STATE to ensure
* that the software state is kept in sync.
*/
RECONCILE_IRQ_STATE(r3,r5)
#endif
/* Switch to kernel stack and jump to handler. */
PPC_LL r3, HOST_RUN(r1)
mr r5, r14 /* intno */

4
arch/powerpc/kvm/e500.c
View File

@ -16,6 +16,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@ -573,3 +575,5 @@ static void __exit kvmppc_e500_exit(void)
module_init(kvmppc_e500_init);
module_exit(kvmppc_e500_exit);
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");

8
arch/powerpc/kvm/e500.h
View File

@ -31,11 +31,13 @@ enum vcpu_ftr {
#define E500_TLB_NUM 2
/* entry is mapped somewhere in host TLB */
#define E500_TLB_VALID (1 << 0)
#define E500_TLB_VALID (1 << 31)
/* TLB1 entry is mapped by host TLB1, tracked by bitmaps */
#define E500_TLB_BITMAP (1 << 1)
#define E500_TLB_BITMAP (1 << 30)
/* TLB1 entry is mapped by host TLB0 */
#define E500_TLB_TLB0 (1 << 2)
#define E500_TLB_TLB0 (1 << 29)
/* bits [6-5] MAS2_X1 and MAS2_X0 and [4-0] bits for WIMGE */
#define E500_TLB_MAS2_ATTR (0x7f)
struct tlbe_ref {
pfn_t pfn; /* valid only for TLB0, except briefly */

2
arch/powerpc/kvm/e500_mmu.c
View File

@ -127,7 +127,7 @@ static int kvmppc_e500_tlb_index(struct kvmppc_vcpu_e500 *vcpu_e500,
}
static inline void kvmppc_e500_deliver_tlb_miss(struct kvm_vcpu *vcpu,
unsigned int eaddr, int as)
gva_t eaddr, int as)
{
struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
unsigned int victim, tsized;

59
arch/powerpc/kvm/e500_mmu_host.c
View File

@ -65,15 +65,6 @@ static inline u32 e500_shadow_mas3_attrib(u32 mas3, int usermode)
return mas3;
}
static inline u32 e500_shadow_mas2_attrib(u32 mas2, int usermode)
{
#ifdef CONFIG_SMP
return (mas2 & MAS2_ATTRIB_MASK) | MAS2_M;
#else
return mas2 & MAS2_ATTRIB_MASK;
#endif
}
/*
* writing shadow tlb entry to host TLB
*/
@ -231,15 +222,15 @@ void inval_gtlbe_on_host(struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel,
ref->flags &= ~(E500_TLB_TLB0 | E500_TLB_VALID);
}
/* Already invalidated in between */
if (!(ref->flags & E500_TLB_VALID))
return;
/* Guest tlbe is backed by at most one host tlbe per shadow pid. */
kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
/*
* If TLB entry is still valid then it's a TLB0 entry, and thus
* backed by at most one host tlbe per shadow pid
*/
if (ref->flags & E500_TLB_VALID)
kvmppc_e500_tlbil_one(vcpu_e500, gtlbe);
/* Mark the TLB as not backed by the host anymore */
ref->flags &= ~E500_TLB_VALID;
ref->flags = 0;
}
static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe)
@ -249,10 +240,13 @@ static inline int tlbe_is_writable(struct kvm_book3e_206_tlb_entry *tlbe)
static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
struct kvm_book3e_206_tlb_entry *gtlbe,
pfn_t pfn)
pfn_t pfn, unsigned int wimg)
{
ref->pfn = pfn;
ref->flags |= E500_TLB_VALID;
ref->flags = E500_TLB_VALID;
/* Use guest supplied MAS2_G and MAS2_E */
ref->flags |= (gtlbe->mas2 & MAS2_ATTRIB_MASK) | wimg;
/* Mark the page accessed */
kvm_set_pfn_accessed(pfn);
@ -316,8 +310,7 @@ static void kvmppc_e500_setup_stlbe(
/* Force IPROT=0 for all guest mappings. */
stlbe->mas1 = MAS1_TSIZE(tsize) | get_tlb_sts(gtlbe) | MAS1_VALID;
stlbe->mas2 = (gvaddr & MAS2_EPN) |
e500_shadow_mas2_attrib(gtlbe->mas2, pr);
stlbe->mas2 = (gvaddr & MAS2_EPN) | (ref->flags & E500_TLB_MAS2_ATTR);
stlbe->mas7_3 = ((u64)pfn << PAGE_SHIFT) |
e500_shadow_mas3_attrib(gtlbe->mas7_3, pr);
@ -339,6 +332,10 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
int ret = 0;
unsigned long mmu_seq;
struct kvm *kvm = vcpu_e500->vcpu.kvm;
unsigned long tsize_pages = 0;
pte_t *ptep;
unsigned int wimg = 0;
pgd_t *pgdir;
/* used to check for invalidations in progress */
mmu_seq = kvm->mmu_notifier_seq;
@ -405,7 +402,7 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
*/
for (; tsize > BOOK3E_PAGESZ_4K; tsize -= 2) {
unsigned long gfn_start, gfn_end, tsize_pages;
unsigned long gfn_start, gfn_end;
tsize_pages = 1 << (tsize - 2);
gfn_start = gfn & ~(tsize_pages - 1);
@ -447,11 +444,12 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
}
if (likely(!pfnmap)) {
unsigned long tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
tsize_pages = 1 << (tsize + 10 - PAGE_SHIFT);
pfn = gfn_to_pfn_memslot(slot, gfn);
if (is_error_noslot_pfn(pfn)) {
printk(KERN_ERR "Couldn't get real page for gfn %lx!\n",
(long)gfn);
if (printk_ratelimit())
pr_err("%s: real page not found for gfn %lx\n",
__func__, (long)gfn);
return -EINVAL;
}
@ -466,7 +464,18 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
goto out;
}
kvmppc_e500_ref_setup(ref, gtlbe, pfn);
pgdir = vcpu_e500->vcpu.arch.pgdir;
ptep = lookup_linux_ptep(pgdir, hva, &tsize_pages);
if (pte_present(*ptep))
wimg = (*ptep >> PTE_WIMGE_SHIFT) & MAS2_WIMGE_MASK;
else {
if (printk_ratelimit())
pr_err("%s: pte not present: gfn %lx, pfn %lx\n",
__func__, (long)gfn, pfn);
return -EINVAL;
}
kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg);
kvmppc_e500_setup_stlbe(&vcpu_e500->vcpu, gtlbe, tsize,
ref, gvaddr, stlbe);

4
arch/powerpc/kvm/e500mc.c
View File

@ -16,6 +16,8 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <asm/reg.h>
#include <asm/cputable.h>
@ -391,3 +393,5 @@ static void __exit kvmppc_e500mc_exit(void)
module_init(kvmppc_e500mc_init);
module_exit(kvmppc_e500mc_exit);
MODULE_ALIAS_MISCDEV(KVM_MINOR);
MODULE_ALIAS("devname:kvm");

1
arch/powerpc/kvm/emulate.c
View File

@ -219,7 +219,6 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
* lmw
* stmw
*
* XXX is_bigendian should depend on MMU mapping or MSR[LE]
*/
/* XXX Should probably auto-generate instruction decoding for a particular core
* from opcode tables in the future. */

1
arch/powerpc/kvm/mpic.c
View File

@ -1635,6 +1635,7 @@ static void mpic_destroy(struct kvm_device *dev)
dev->kvm->arch.mpic = NULL;
kfree(opp);
kfree(dev);
}
static int mpic_set_default_irq_routing(struct openpic *opp)

58
arch/powerpc/kvm/powerpc.c
View File

@ -68,14 +68,16 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
*/
int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
{
int r = 1;
int r;
WARN_ON(irqs_disabled());
hard_irq_disable();
WARN_ON_ONCE(!irqs_disabled());
while (true) {
if (need_resched()) {
local_irq_enable();
cond_resched();
local_irq_disable();
hard_irq_disable();
continue;
}
@ -101,7 +103,7 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
local_irq_enable();
trace_kvm_check_requests(vcpu);
r = kvmppc_core_check_requests(vcpu);
local_irq_disable();
hard_irq_disable();
if (r > 0)
continue;
break;
@ -113,22 +115,12 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
continue;
}
#ifdef CONFIG_PPC64
/* lazy EE magic */
hard_irq_disable();
if (lazy_irq_pending()) {
/* Got an interrupt in between, try again */
local_irq_enable();
local_irq_disable();
kvm_guest_exit();
continue;
}
#endif
kvm_guest_enter();
break;
return 1;
}
/* return to host */
local_irq_enable();
return r;
}
EXPORT_SYMBOL_GPL(kvmppc_prepare_to_enter);
@ -656,14 +648,14 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
kvmppc_set_gpr(vcpu, vcpu->arch.io_gpr, gpr);
break;
case KVM_MMIO_REG_FPR:
vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
break;
#ifdef CONFIG_PPC_BOOK3S
case KVM_MMIO_REG_QPR:
vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
case KVM_MMIO_REG_FQPR:
vcpu->arch.fpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
VCPU_FPR(vcpu, vcpu->arch.io_gpr & KVM_MMIO_REG_MASK) = gpr;
vcpu->arch.qpr[vcpu->arch.io_gpr & KVM_MMIO_REG_MASK] = gpr;
break;
#endif
@ -673,9 +665,19 @@ static void kvmppc_complete_mmio_load(struct kvm_vcpu *vcpu,
}
int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes, int is_bigendian)
unsigned int rt, unsigned int bytes,
int is_default_endian)
{
int idx, ret;
int is_bigendian;
if (kvmppc_need_byteswap(vcpu)) {
/* Default endianness is "little endian". */
is_bigendian = !is_default_endian;
} else {
/* Default endianness is "big endian". */
is_bigendian = is_default_endian;
}
if (bytes > sizeof(run->mmio.data)) {
printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,
@ -711,21 +713,31 @@ EXPORT_SYMBOL_GPL(kvmppc_handle_load);
/* Same as above, but sign extends */
int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
unsigned int rt, unsigned int bytes, int is_bigendian)
unsigned int rt, unsigned int bytes,
int is_default_endian)
{
int r;
vcpu->arch.mmio_sign_extend = 1;
r = kvmppc_handle_load(run, vcpu, rt, bytes, is_bigendian);
r = kvmppc_handle_load(run, vcpu, rt, bytes, is_default_endian);
return r;
}
int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
u64 val, unsigned int bytes, int is_bigendian)
u64 val, unsigned int bytes, int is_default_endian)
{
void *data = run->mmio.data;
int idx, ret;
int is_bigendian;
if (kvmppc_need_byteswap(vcpu)) {
/* Default endianness is "little endian". */
is_bigendian = !is_default_endian;
} else {
/* Default endianness is "big endian". */
is_bigendian = is_default_endian;
}
if (bytes > sizeof(run->mmio.data)) {
printk(KERN_ERR "%s: bad MMIO length: %d\n", __func__,

15
arch/s390/include/asm/kvm_host.h
View File

@ -106,9 +106,22 @@ struct kvm_s390_sie_block {
__u64 gbea; /* 0x0180 */
__u8 reserved188[24]; /* 0x0188 */
__u32 fac; /* 0x01a0 */
__u8 reserved1a4[92]; /* 0x01a4 */
__u8 reserved1a4[68]; /* 0x01a4 */
__u64 itdba; /* 0x01e8 */
__u8 reserved1f0[16]; /* 0x01f0 */
} __attribute__((packed));
struct kvm_s390_itdb {
__u8 data[256];
} __packed;
struct sie_page {
struct kvm_s390_sie_block sie_block;
__u8 reserved200[1024]; /* 0x0200 */
struct kvm_s390_itdb itdb; /* 0x0600 */
__u8 reserved700[2304]; /* 0x0700 */
} __packed;
struct kvm_vcpu_stat {
u32 exit_userspace;
u32 exit_null;

11
arch/s390/kvm/intercept.c
View File

@ -112,6 +112,17 @@ static int handle_instruction(struct kvm_vcpu *vcpu)
static int handle_prog(struct kvm_vcpu *vcpu)
{
vcpu->stat.exit_program_interruption++;
/* Restore ITDB to Program-Interruption TDB in guest memory */
if (IS_TE_ENABLED(vcpu) &&
!(current->thread.per_flags & PER_FLAG_NO_TE) &&
IS_ITDB_VALID(vcpu)) {
copy_to_guest(vcpu, TDB_ADDR, vcpu->arch.sie_block->itdba,
sizeof(struct kvm_s390_itdb));
memset((void *) vcpu->arch.sie_block->itdba, 0,
sizeof(struct kvm_s390_itdb));
}
trace_kvm_s390_intercept_prog(vcpu, vcpu->arch.sie_block->iprcc);
return kvm_s390_inject_program_int(vcpu, vcpu->arch.sie_block->iprcc);
}

17
arch/s390/kvm/kvm-s390.c
View File

@ -395,6 +395,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
CPUSTAT_STOPPED |
CPUSTAT_GED);
vcpu->arch.sie_block->ecb = 6;
if (test_vfacility(50) && test_vfacility(73))
vcpu->arch.sie_block->ecb |= 0x10;
vcpu->arch.sie_block->ecb2 = 8;
vcpu->arch.sie_block->eca = 0xC1002001U;
vcpu->arch.sie_block->fac = (int) (long) vfacilities;
@ -411,6 +414,7 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
unsigned int id)
{
struct kvm_vcpu *vcpu;
struct sie_page *sie_page;
int rc = -EINVAL;
if (id >= KVM_MAX_VCPUS)
@ -422,12 +426,13 @@ struct kvm_vcpu *kvm_arch_vcpu_create(struct kvm *kvm,
if (!vcpu)
goto out;
vcpu->arch.sie_block = (struct kvm_s390_sie_block *)
get_zeroed_page(GFP_KERNEL);
if (!vcpu->arch.sie_block)
sie_page = (struct sie_page *) get_zeroed_page(GFP_KERNEL);
if (!sie_page)
goto out_free_cpu;
vcpu->arch.sie_block = &sie_page->sie_block;
vcpu->arch.sie_block->itdba = (unsigned long) &sie_page->itdb;
vcpu->arch.sie_block->icpua = id;
if (!kvm_is_ucontrol(kvm)) {
if (!kvm->arch.sca) {
@ -1182,8 +1187,8 @@ static int __init kvm_s390_init(void)
return -ENOMEM;
}
memcpy(vfacilities, S390_lowcore.stfle_fac_list, 16);
vfacilities[0] &= 0xff82fff3f47c0000UL;
vfacilities[1] &= 0x001c000000000000UL;
vfacilities[0] &= 0xff82fff3f4fc2000UL;
vfacilities[1] &= 0x005c000000000000UL;
return 0;
}

6
arch/s390/kvm/kvm-s390.h
View File

@ -26,6 +26,12 @@ extern unsigned long *vfacilities;
int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
/* Transactional Memory Execution related macros */
#define IS_TE_ENABLED(vcpu) ((vcpu->arch.sie_block->ecb & 0x10))
#define TDB_ADDR 0x1800UL
#define TDB_FORMAT1 1
#define IS_ITDB_VALID(vcpu) ((*(char *)vcpu->arch.sie_block->itdba == TDB_FORMAT1))
#define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
do { \
debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \

33
arch/x86/include/asm/kvm_para.h
View File

@ -85,28 +85,9 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
return ret;
}
static inline uint32_t kvm_cpuid_base(void)
{
if (boot_cpu_data.cpuid_level < 0)
return 0; /* So we don't blow up on old processors */
if (cpu_has_hypervisor)
return hypervisor_cpuid_base("KVMKVMKVM\0\0\0", 0);
return 0;
}
static inline bool kvm_para_available(void)
{
return kvm_cpuid_base() != 0;
}
static inline unsigned int kvm_arch_para_features(void)
{
return cpuid_eax(KVM_CPUID_FEATURES);
}
#ifdef CONFIG_KVM_GUEST
bool kvm_para_available(void);
unsigned int kvm_arch_para_features(void);
void __init kvm_guest_init(void);
void kvm_async_pf_task_wait(u32 token);
void kvm_async_pf_task_wake(u32 token);
@ -126,6 +107,16 @@ static inline void kvm_spinlock_init(void)
#define kvm_async_pf_task_wait(T) do {} while(0)
#define kvm_async_pf_task_wake(T) do {} while(0)
static inline bool kvm_para_available(void)
{
return 0;
}
static inline unsigned int kvm_arch_para_features(void)
{
return 0;
}
static inline u32 kvm_read_and_reset_pf_reason(void)
{
return 0;

32
arch/x86/kernel/kvm.c
View File

@ -500,6 +500,38 @@ void __init kvm_guest_init(void)
#endif
}
static noinline uint32_t __kvm_cpuid_base(void)
{
if (boot_cpu_data.cpuid_level < 0)
return 0; /* So we don't blow up on old processors */
if (cpu_has_hypervisor)
return hypervisor_cpuid_base("KVMKVMKVM\0\0\0", 0);
return 0;
}
static inline uint32_t kvm_cpuid_base(void)
{
static int kvm_cpuid_base = -1;
if (kvm_cpuid_base == -1)
kvm_cpuid_base = __kvm_cpuid_base();
return kvm_cpuid_base;
}
bool kvm_para_available(void)
{
return kvm_cpuid_base() != 0;
}
EXPORT_SYMBOL_GPL(kvm_para_available);
unsigned int kvm_arch_para_features(void)
{
return cpuid_eax(kvm_cpuid_base() | KVM_CPUID_FEATURES);
}
static uint32_t __init kvm_detect(void)
{
return kvm_cpuid_base();

8
arch/x86/kvm/cpuid.h
View File

@ -72,4 +72,12 @@ static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
return best && (best->ecx & bit(X86_FEATURE_PCID));
}
static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
{
struct kvm_cpuid_entry2 *best;
best = kvm_find_cpuid_entry(vcpu, 1, 0);
return best && (best->ecx & bit(X86_FEATURE_X2APIC));
}
#endif

2
arch/x86/kvm/lapic.h
View File

@ -65,7 +65,7 @@ bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
struct kvm_lapic_irq *irq, int *r, unsigned long *dest_map);
u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu,
struct kvm_lapic_state *s);
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);

9
arch/x86/kvm/vmx.c
View File

@ -4392,7 +4392,7 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
{
struct vcpu_vmx *vmx = to_vmx(vcpu);
u64 msr;
struct msr_data apic_base_msr;
vmx->rmode.vm86_active = 0;
@ -4400,10 +4400,11 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
kvm_set_cr8(&vmx->vcpu, 0);
msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
apic_base_msr.data = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
if (kvm_vcpu_is_bsp(&vmx->vcpu))
msr |= MSR_IA32_APICBASE_BSP;
kvm_set_apic_base(&vmx->vcpu, msr);
apic_base_msr.data |= MSR_IA32_APICBASE_BSP;
apic_base_msr.host_initiated = true;
kvm_set_apic_base(&vmx->vcpu, &apic_base_msr);
vmx_segment_cache_clear(vmx);

39
arch/x86/kvm/x86.c
View File

@ -257,10 +257,26 @@ u64 kvm_get_apic_base(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_get_apic_base);
void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data)
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
{
/* TODO: reserve bits check */
kvm_lapic_set_base(vcpu, data);
u64 old_state = vcpu->arch.apic_base &
(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
u64 new_state = msr_info->data &
(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
u64 reserved_bits = ((~0ULL) << cpuid_maxphyaddr(vcpu)) |
0x2ff | (guest_cpuid_has_x2apic(vcpu) ? 0 : X2APIC_ENABLE);
if (!msr_info->host_initiated &&
((msr_info->data & reserved_bits) != 0 ||
new_state == X2APIC_ENABLE ||
(new_state == MSR_IA32_APICBASE_ENABLE &&
old_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE)) ||
(new_state == (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE) &&
old_state == 0)))
return 1;
kvm_lapic_set_base(vcpu, msr_info->data);
return 0;
}
EXPORT_SYMBOL_GPL(kvm_set_apic_base);
@ -1840,6 +1856,7 @@ static int set_msr_hyperv_pw(struct kvm_vcpu *vcpu, u32 msr, u64 data)
if (__copy_to_user((void __user *)addr, instructions, 4))
return 1;
kvm->arch.hv_hypercall = data;
mark_page_dirty(kvm, gfn);
break;
}
case HV_X64_MSR_REFERENCE_TSC: {
@ -1868,19 +1885,21 @@ static int set_msr_hyperv(struct kvm_vcpu *vcpu, u32 msr, u64 data)
{
switch (msr) {
case HV_X64_MSR_APIC_ASSIST_PAGE: {
u64 gfn;
unsigned long addr;
if (!(data & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE)) {
vcpu->arch.hv_vapic = data;
break;
}
addr = gfn_to_hva(vcpu->kvm, data >>
HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT);
gfn = data >> HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT;
addr = gfn_to_hva(vcpu->kvm, gfn);
if (kvm_is_error_hva(addr))
return 1;
if (__clear_user((void __user *)addr, PAGE_SIZE))
return 1;
vcpu->arch.hv_vapic = data;
mark_page_dirty(vcpu->kvm, gfn);
break;
}
case HV_X64_MSR_EOI:
@ -2006,8 +2025,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
case 0x200 ... 0x2ff:
return set_msr_mtrr(vcpu, msr, data);
case MSR_IA32_APICBASE:
kvm_set_apic_base(vcpu, data);
break;
return kvm_set_apic_base(vcpu, msr_info);
case APIC_BASE_MSR ... APIC_BASE_MSR + 0x3ff:
return kvm_x2apic_msr_write(vcpu, msr, data);
case MSR_IA32_TSCDEADLINE:
@ -2598,10 +2616,10 @@ int kvm_dev_ioctl_check_extension(long ext)
case KVM_CAP_GET_TSC_KHZ:
case KVM_CAP_KVMCLOCK_CTRL:
case KVM_CAP_READONLY_MEM:
case KVM_CAP_HYPERV_TIME:
#ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
case KVM_CAP_ASSIGN_DEV_IRQ:
case KVM_CAP_PCI_2_3:
case KVM_CAP_HYPERV_TIME:
#endif
r = 1;
break;
@ -6409,6 +6427,7 @@ EXPORT_SYMBOL_GPL(kvm_task_switch);
int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
struct kvm_sregs *sregs)
{
struct msr_data apic_base_msr;
int mmu_reset_needed = 0;
int pending_vec, max_bits, idx;
struct desc_ptr dt;
@ -6432,7 +6451,9 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
mmu_reset_needed |= vcpu->arch.efer != sregs->efer;
kvm_x86_ops->set_efer(vcpu, sregs->efer);
kvm_set_apic_base(vcpu, sregs->apic_base);
apic_base_msr.data = sregs->apic_base;
apic_base_msr.host_initiated = true;
kvm_set_apic_base(vcpu, &apic_base_msr);
mmu_reset_needed |= kvm_read_cr0(vcpu) != sregs->cr0;
kvm_x86_ops->set_cr0(vcpu, sregs->cr0);

11
drivers/s390/kvm/virtio_ccw.c
View File

@ -642,8 +642,15 @@ static void virtio_ccw_int_handler(struct ccw_device *cdev,
(SCSW_STCTL_ALERT_STATUS | SCSW_STCTL_STATUS_PEND))) {
/* OK */
}
if (irb_is_error(irb))
vcdev->err = -EIO; /* XXX - use real error */
if (irb_is_error(irb)) {
/* Command reject? */
if ((scsw_dstat(&irb->scsw) & DEV_STAT_UNIT_CHECK) &&
(irb->ecw[0] & SNS0_CMD_REJECT))
vcdev->err = -EOPNOTSUPP;
else
/* Map everything else to -EIO. */
vcdev->err = -EIO;
}
if (vcdev->curr_io & activity) {
switch (activity) {
case VIRTIO_CCW_DOING_READ_FEAT: