mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 15:05:03 +07:00
a1ce39288e
Convert #include "..." to #include <path/...> in kernel system headers. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
178 lines
6.0 KiB
C
178 lines
6.0 KiB
C
/******************************************************************************
|
|
* arch-x86_32.h
|
|
*
|
|
* Guest OS interface to x86 Xen.
|
|
*
|
|
* Copyright (c) 2004, K A Fraser
|
|
*/
|
|
|
|
#ifndef _ASM_X86_XEN_INTERFACE_H
|
|
#define _ASM_X86_XEN_INTERFACE_H
|
|
|
|
#ifdef __XEN__
|
|
#define __DEFINE_GUEST_HANDLE(name, type) \
|
|
typedef struct { type *p; } __guest_handle_ ## name
|
|
#else
|
|
#define __DEFINE_GUEST_HANDLE(name, type) \
|
|
typedef type * __guest_handle_ ## name
|
|
#endif
|
|
|
|
#define DEFINE_GUEST_HANDLE_STRUCT(name) \
|
|
__DEFINE_GUEST_HANDLE(name, struct name)
|
|
#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name)
|
|
#define GUEST_HANDLE(name) __guest_handle_ ## name
|
|
|
|
#ifdef __XEN__
|
|
#if defined(__i386__)
|
|
#define set_xen_guest_handle(hnd, val) \
|
|
do { \
|
|
if (sizeof(hnd) == 8) \
|
|
*(uint64_t *)&(hnd) = 0; \
|
|
(hnd).p = val; \
|
|
} while (0)
|
|
#elif defined(__x86_64__)
|
|
#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0)
|
|
#endif
|
|
#else
|
|
#if defined(__i386__)
|
|
#define set_xen_guest_handle(hnd, val) \
|
|
do { \
|
|
if (sizeof(hnd) == 8) \
|
|
*(uint64_t *)&(hnd) = 0; \
|
|
(hnd) = val; \
|
|
} while (0)
|
|
#elif defined(__x86_64__)
|
|
#define set_xen_guest_handle(hnd, val) do { (hnd) = val; } while (0)
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef __ASSEMBLY__
|
|
/* Guest handles for primitive C types. */
|
|
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
|
|
__DEFINE_GUEST_HANDLE(uint, unsigned int);
|
|
__DEFINE_GUEST_HANDLE(ulong, unsigned long);
|
|
DEFINE_GUEST_HANDLE(char);
|
|
DEFINE_GUEST_HANDLE(int);
|
|
DEFINE_GUEST_HANDLE(long);
|
|
DEFINE_GUEST_HANDLE(void);
|
|
DEFINE_GUEST_HANDLE(uint64_t);
|
|
DEFINE_GUEST_HANDLE(uint32_t);
|
|
#endif
|
|
|
|
#ifndef HYPERVISOR_VIRT_START
|
|
#define HYPERVISOR_VIRT_START mk_unsigned_long(__HYPERVISOR_VIRT_START)
|
|
#endif
|
|
|
|
#define MACH2PHYS_VIRT_START mk_unsigned_long(__MACH2PHYS_VIRT_START)
|
|
#define MACH2PHYS_VIRT_END mk_unsigned_long(__MACH2PHYS_VIRT_END)
|
|
#define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>__MACH2PHYS_SHIFT)
|
|
|
|
/* Maximum number of virtual CPUs in multi-processor guests. */
|
|
#define MAX_VIRT_CPUS 32
|
|
|
|
/*
|
|
* SEGMENT DESCRIPTOR TABLES
|
|
*/
|
|
/*
|
|
* A number of GDT entries are reserved by Xen. These are not situated at the
|
|
* start of the GDT because some stupid OSes export hard-coded selector values
|
|
* in their ABI. These hard-coded values are always near the start of the GDT,
|
|
* so Xen places itself out of the way, at the far end of the GDT.
|
|
*/
|
|
#define FIRST_RESERVED_GDT_PAGE 14
|
|
#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096)
|
|
#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8)
|
|
|
|
/*
|
|
* Send an array of these to HYPERVISOR_set_trap_table()
|
|
* The privilege level specifies which modes may enter a trap via a software
|
|
* interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate
|
|
* privilege levels as follows:
|
|
* Level == 0: No one may enter
|
|
* Level == 1: Kernel may enter
|
|
* Level == 2: Kernel may enter
|
|
* Level == 3: Everyone may enter
|
|
*/
|
|
#define TI_GET_DPL(_ti) ((_ti)->flags & 3)
|
|
#define TI_GET_IF(_ti) ((_ti)->flags & 4)
|
|
#define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl))
|
|
#define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2))
|
|
|
|
#ifndef __ASSEMBLY__
|
|
struct trap_info {
|
|
uint8_t vector; /* exception vector */
|
|
uint8_t flags; /* 0-3: privilege level; 4: clear event enable? */
|
|
uint16_t cs; /* code selector */
|
|
unsigned long address; /* code offset */
|
|
};
|
|
DEFINE_GUEST_HANDLE_STRUCT(trap_info);
|
|
|
|
struct arch_shared_info {
|
|
unsigned long max_pfn; /* max pfn that appears in table */
|
|
/* Frame containing list of mfns containing list of mfns containing p2m. */
|
|
unsigned long pfn_to_mfn_frame_list_list;
|
|
unsigned long nmi_reason;
|
|
};
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
#ifdef CONFIG_X86_32
|
|
#include <asm/xen/interface_32.h>
|
|
#else
|
|
#include <asm/xen/interface_64.h>
|
|
#endif
|
|
|
|
#ifndef __ASSEMBLY__
|
|
/*
|
|
* The following is all CPU context. Note that the fpu_ctxt block is filled
|
|
* in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used.
|
|
*/
|
|
struct vcpu_guest_context {
|
|
/* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */
|
|
struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */
|
|
#define VGCF_I387_VALID (1<<0)
|
|
#define VGCF_HVM_GUEST (1<<1)
|
|
#define VGCF_IN_KERNEL (1<<2)
|
|
unsigned long flags; /* VGCF_* flags */
|
|
struct cpu_user_regs user_regs; /* User-level CPU registers */
|
|
struct trap_info trap_ctxt[256]; /* Virtual IDT */
|
|
unsigned long ldt_base, ldt_ents; /* LDT (linear address, # ents) */
|
|
unsigned long gdt_frames[16], gdt_ents; /* GDT (machine frames, # ents) */
|
|
unsigned long kernel_ss, kernel_sp; /* Virtual TSS (only SS1/SP1) */
|
|
/* NB. User pagetable on x86/64 is placed in ctrlreg[1]. */
|
|
unsigned long ctrlreg[8]; /* CR0-CR7 (control registers) */
|
|
unsigned long debugreg[8]; /* DB0-DB7 (debug registers) */
|
|
#ifdef __i386__
|
|
unsigned long event_callback_cs; /* CS:EIP of event callback */
|
|
unsigned long event_callback_eip;
|
|
unsigned long failsafe_callback_cs; /* CS:EIP of failsafe callback */
|
|
unsigned long failsafe_callback_eip;
|
|
#else
|
|
unsigned long event_callback_eip;
|
|
unsigned long failsafe_callback_eip;
|
|
unsigned long syscall_callback_eip;
|
|
#endif
|
|
unsigned long vm_assist; /* VMASST_TYPE_* bitmap */
|
|
#ifdef __x86_64__
|
|
/* Segment base addresses. */
|
|
uint64_t fs_base;
|
|
uint64_t gs_base_kernel;
|
|
uint64_t gs_base_user;
|
|
#endif
|
|
};
|
|
DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context);
|
|
#endif /* !__ASSEMBLY__ */
|
|
|
|
/*
|
|
* Prefix forces emulation of some non-trapping instructions.
|
|
* Currently only CPUID.
|
|
*/
|
|
#ifdef __ASSEMBLY__
|
|
#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ;
|
|
#define XEN_CPUID XEN_EMULATE_PREFIX cpuid
|
|
#else
|
|
#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; "
|
|
#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid"
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_XEN_INTERFACE_H */
|