mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-27 00:40:53 +07:00
828554136b
This patch converts unnecessary divide and modulo operations in the KVM large page related code into logical operations. This allows to convert gfn_t to u64 while not breaking 32 bit builds. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
303 lines
6.3 KiB
C
303 lines
6.3 KiB
C
/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright IBM Corp. 2007
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*
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* Authors: Hollis Blanchard <hollisb@us.ibm.com>
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*/
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#ifndef __POWERPC_KVM_HOST_H__
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#define __POWERPC_KVM_HOST_H__
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#include <linux/mutex.h>
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#include <linux/hrtimer.h>
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#include <linux/interrupt.h>
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#include <linux/types.h>
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#include <linux/kvm_types.h>
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#include <asm/kvm_asm.h>
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#define KVM_MAX_VCPUS 1
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#define KVM_MEMORY_SLOTS 32
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/* memory slots that does not exposed to userspace */
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#define KVM_PRIVATE_MEM_SLOTS 4
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#define KVM_COALESCED_MMIO_PAGE_OFFSET 1
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/* We don't currently support large pages. */
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#define KVM_HPAGE_GFN_SHIFT(x) 0
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#define KVM_NR_PAGE_SIZES 1
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#define KVM_PAGES_PER_HPAGE(x) (1UL<<31)
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#define HPTEG_CACHE_NUM (1 << 15)
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#define HPTEG_HASH_BITS_PTE 13
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#define HPTEG_HASH_BITS_VPTE 13
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#define HPTEG_HASH_BITS_VPTE_LONG 5
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#define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
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#define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
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#define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
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struct kvm;
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struct kvm_run;
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struct kvm_vcpu;
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struct kvm_vm_stat {
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u32 remote_tlb_flush;
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};
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struct kvm_vcpu_stat {
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u32 sum_exits;
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u32 mmio_exits;
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u32 dcr_exits;
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u32 signal_exits;
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u32 light_exits;
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/* Account for special types of light exits: */
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u32 itlb_real_miss_exits;
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u32 itlb_virt_miss_exits;
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u32 dtlb_real_miss_exits;
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u32 dtlb_virt_miss_exits;
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u32 syscall_exits;
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u32 isi_exits;
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u32 dsi_exits;
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u32 emulated_inst_exits;
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u32 dec_exits;
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u32 ext_intr_exits;
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u32 halt_wakeup;
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#ifdef CONFIG_PPC_BOOK3S
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u32 pf_storage;
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u32 pf_instruc;
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u32 sp_storage;
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u32 sp_instruc;
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u32 queue_intr;
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u32 ld;
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u32 ld_slow;
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u32 st;
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u32 st_slow;
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#endif
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};
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enum kvm_exit_types {
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MMIO_EXITS,
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DCR_EXITS,
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SIGNAL_EXITS,
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ITLB_REAL_MISS_EXITS,
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ITLB_VIRT_MISS_EXITS,
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DTLB_REAL_MISS_EXITS,
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DTLB_VIRT_MISS_EXITS,
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SYSCALL_EXITS,
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ISI_EXITS,
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DSI_EXITS,
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EMULATED_INST_EXITS,
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EMULATED_MTMSRWE_EXITS,
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EMULATED_WRTEE_EXITS,
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EMULATED_MTSPR_EXITS,
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EMULATED_MFSPR_EXITS,
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EMULATED_MTMSR_EXITS,
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EMULATED_MFMSR_EXITS,
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EMULATED_TLBSX_EXITS,
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EMULATED_TLBWE_EXITS,
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EMULATED_RFI_EXITS,
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DEC_EXITS,
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EXT_INTR_EXITS,
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HALT_WAKEUP,
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USR_PR_INST,
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FP_UNAVAIL,
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DEBUG_EXITS,
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TIMEINGUEST,
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__NUMBER_OF_KVM_EXIT_TYPES
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};
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/* allow access to big endian 32bit upper/lower parts and 64bit var */
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struct kvmppc_exit_timing {
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union {
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u64 tv64;
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struct {
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u32 tbu, tbl;
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} tv32;
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};
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};
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struct kvm_arch {
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};
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struct kvmppc_pte {
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ulong eaddr;
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u64 vpage;
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ulong raddr;
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bool may_read : 1;
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bool may_write : 1;
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bool may_execute : 1;
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};
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struct kvmppc_mmu {
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/* book3s_64 only */
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void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);
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u64 (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);
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u64 (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);
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void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);
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void (*slbia)(struct kvm_vcpu *vcpu);
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/* book3s */
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void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
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u32 (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
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int (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
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void (*reset_msr)(struct kvm_vcpu *vcpu);
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void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
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int (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
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u64 (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);
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bool (*is_dcbz32)(struct kvm_vcpu *vcpu);
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};
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struct hpte_cache {
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struct hlist_node list_pte;
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struct hlist_node list_vpte;
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struct hlist_node list_vpte_long;
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u64 host_va;
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u64 pfn;
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ulong slot;
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struct kvmppc_pte pte;
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};
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struct kvm_vcpu_arch {
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ulong host_stack;
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u32 host_pid;
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#ifdef CONFIG_PPC_BOOK3S
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ulong host_msr;
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ulong host_r2;
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void *host_retip;
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ulong trampoline_lowmem;
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ulong trampoline_enter;
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ulong highmem_handler;
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ulong rmcall;
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ulong host_paca_phys;
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struct kvmppc_mmu mmu;
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#endif
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ulong gpr[32];
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u64 fpr[32];
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u64 fpscr;
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#ifdef CONFIG_ALTIVEC
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vector128 vr[32];
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vector128 vscr;
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#endif
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#ifdef CONFIG_VSX
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u64 vsr[32];
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#endif
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#ifdef CONFIG_PPC_BOOK3S
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/* For Gekko paired singles */
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u32 qpr[32];
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#endif
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#ifdef CONFIG_BOOKE
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ulong pc;
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ulong ctr;
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ulong lr;
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ulong xer;
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u32 cr;
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#endif
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ulong msr;
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#ifdef CONFIG_PPC_BOOK3S
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ulong shadow_msr;
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ulong hflags;
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ulong guest_owned_ext;
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#endif
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u32 mmucr;
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ulong sprg0;
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ulong sprg1;
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ulong sprg2;
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ulong sprg3;
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ulong sprg4;
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ulong sprg5;
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ulong sprg6;
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ulong sprg7;
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ulong srr0;
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ulong srr1;
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ulong csrr0;
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ulong csrr1;
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ulong dsrr0;
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ulong dsrr1;
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ulong dear;
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ulong esr;
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u32 dec;
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u32 decar;
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u32 tbl;
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u32 tbu;
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u32 tcr;
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u32 tsr;
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u32 ivor[64];
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ulong ivpr;
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u32 pir;
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u32 pvr;
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u32 shadow_pid;
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u32 pid;
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u32 swap_pid;
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u32 ccr0;
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u32 ccr1;
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u32 dbcr0;
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u32 dbcr1;
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u32 dbsr;
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#ifdef CONFIG_KVM_EXIT_TIMING
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struct kvmppc_exit_timing timing_exit;
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struct kvmppc_exit_timing timing_last_enter;
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u32 last_exit_type;
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u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
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u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
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u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
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u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
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u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
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u64 timing_last_exit;
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struct dentry *debugfs_exit_timing;
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#endif
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#ifdef CONFIG_BOOKE
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u32 last_inst;
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ulong fault_dear;
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ulong fault_esr;
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ulong queued_dear;
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ulong queued_esr;
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#endif
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gpa_t paddr_accessed;
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u8 io_gpr; /* GPR used as IO source/target */
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u8 mmio_is_bigendian;
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u8 mmio_sign_extend;
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u8 dcr_needed;
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u8 dcr_is_write;
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u8 osi_needed;
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u8 osi_enabled;
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u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */
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struct hrtimer dec_timer;
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struct tasklet_struct tasklet;
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u64 dec_jiffies;
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unsigned long pending_exceptions;
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#ifdef CONFIG_PPC_BOOK3S
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struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
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struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
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struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
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int hpte_cache_count;
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#endif
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};
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#endif /* __POWERPC_KVM_HOST_H__ */
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