490 lines
13 KiB
C
490 lines
13 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef ARCH_X86_KVM_X86_H
|
||
|
|
#define ARCH_X86_KVM_X86_H
|
||
|
|
|
||
|
|
#include <linux/kvm_host.h>
|
||
|
|
#include <asm/mce.h>
|
||
|
|
#include <asm/pvclock.h>
|
||
|
|
#include "kvm_cache_regs.h"
|
||
|
|
#include "kvm_emulate.h"
|
||
|
|
|
||
|
|
struct kvm_caps {
|
||
|
|
/* control of guest tsc rate supported? */
|
||
|
|
bool has_tsc_control;
|
||
|
|
/* maximum supported tsc_khz for guests */
|
||
|
|
u32 max_guest_tsc_khz;
|
||
|
|
/* number of bits of the fractional part of the TSC scaling ratio */
|
||
|
|
u8 tsc_scaling_ratio_frac_bits;
|
||
|
|
/* maximum allowed value of TSC scaling ratio */
|
||
|
|
u64 max_tsc_scaling_ratio;
|
||
|
|
/* 1ull << kvm_caps.tsc_scaling_ratio_frac_bits */
|
||
|
|
u64 default_tsc_scaling_ratio;
|
||
|
|
/* bus lock detection supported? */
|
||
|
|
bool has_bus_lock_exit;
|
||
|
|
/* notify VM exit supported? */
|
||
|
|
bool has_notify_vmexit;
|
||
|
|
|
||
|
|
u64 supported_mce_cap;
|
||
|
|
u64 supported_xcr0;
|
||
|
|
u64 supported_xss;
|
||
|
|
u64 supported_perf_cap;
|
||
|
|
};
|
||
|
|
|
||
|
|
void kvm_spurious_fault(void);
|
||
|
|
|
||
|
|
#define KVM_NESTED_VMENTER_CONSISTENCY_CHECK(consistency_check) \
|
||
|
|
({ \
|
||
|
|
bool failed = (consistency_check); \
|
||
|
|
if (failed) \
|
||
|
|
trace_kvm_nested_vmenter_failed(#consistency_check, 0); \
|
||
|
|
failed; \
|
||
|
|
})
|
||
|
|
|
||
|
|
#define KVM_DEFAULT_PLE_GAP 128
|
||
|
|
#define KVM_VMX_DEFAULT_PLE_WINDOW 4096
|
||
|
|
#define KVM_DEFAULT_PLE_WINDOW_GROW 2
|
||
|
|
#define KVM_DEFAULT_PLE_WINDOW_SHRINK 0
|
||
|
|
#define KVM_VMX_DEFAULT_PLE_WINDOW_MAX UINT_MAX
|
||
|
|
#define KVM_SVM_DEFAULT_PLE_WINDOW_MAX USHRT_MAX
|
||
|
|
#define KVM_SVM_DEFAULT_PLE_WINDOW 3000
|
||
|
|
|
||
|
|
static inline unsigned int __grow_ple_window(unsigned int val,
|
||
|
|
unsigned int base, unsigned int modifier, unsigned int max)
|
||
|
|
{
|
||
|
|
u64 ret = val;
|
||
|
|
|
||
|
|
if (modifier < 1)
|
||
|
|
return base;
|
||
|
|
|
||
|
|
if (modifier < base)
|
||
|
|
ret *= modifier;
|
||
|
|
else
|
||
|
|
ret += modifier;
|
||
|
|
|
||
|
|
return min(ret, (u64)max);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned int __shrink_ple_window(unsigned int val,
|
||
|
|
unsigned int base, unsigned int modifier, unsigned int min)
|
||
|
|
{
|
||
|
|
if (modifier < 1)
|
||
|
|
return base;
|
||
|
|
|
||
|
|
if (modifier < base)
|
||
|
|
val /= modifier;
|
||
|
|
else
|
||
|
|
val -= modifier;
|
||
|
|
|
||
|
|
return max(val, min);
|
||
|
|
}
|
||
|
|
|
||
|
|
#define MSR_IA32_CR_PAT_DEFAULT 0x0007040600070406ULL
|
||
|
|
|
||
|
|
void kvm_service_local_tlb_flush_requests(struct kvm_vcpu *vcpu);
|
||
|
|
int kvm_check_nested_events(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
static inline bool kvm_is_exception_pending(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.exception.pending ||
|
||
|
|
vcpu->arch.exception_vmexit.pending ||
|
||
|
|
kvm_test_request(KVM_REQ_TRIPLE_FAULT, vcpu);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
vcpu->arch.exception.pending = false;
|
||
|
|
vcpu->arch.exception.injected = false;
|
||
|
|
vcpu->arch.exception_vmexit.pending = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
|
||
|
|
bool soft)
|
||
|
|
{
|
||
|
|
vcpu->arch.interrupt.injected = true;
|
||
|
|
vcpu->arch.interrupt.soft = soft;
|
||
|
|
vcpu->arch.interrupt.nr = vector;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void kvm_clear_interrupt_queue(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
vcpu->arch.interrupt.injected = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.exception.injected || vcpu->arch.interrupt.injected ||
|
||
|
|
vcpu->arch.nmi_injected;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_exception_is_soft(unsigned int nr)
|
||
|
|
{
|
||
|
|
return (nr == BP_VECTOR) || (nr == OF_VECTOR);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool is_protmode(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int is_long_mode(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
#ifdef CONFIG_X86_64
|
||
|
|
return vcpu->arch.efer & EFER_LMA;
|
||
|
|
#else
|
||
|
|
return 0;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool is_64_bit_mode(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
int cs_db, cs_l;
|
||
|
|
|
||
|
|
WARN_ON_ONCE(vcpu->arch.guest_state_protected);
|
||
|
|
|
||
|
|
if (!is_long_mode(vcpu))
|
||
|
|
return false;
|
||
|
|
static_call(kvm_x86_get_cs_db_l_bits)(vcpu, &cs_db, &cs_l);
|
||
|
|
return cs_l;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool is_64_bit_hypercall(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* If running with protected guest state, the CS register is not
|
||
|
|
* accessible. The hypercall register values will have had to been
|
||
|
|
* provided in 64-bit mode, so assume the guest is in 64-bit.
|
||
|
|
*/
|
||
|
|
return vcpu->arch.guest_state_protected || is_64_bit_mode(vcpu);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool x86_exception_has_error_code(unsigned int vector)
|
||
|
|
{
|
||
|
|
static u32 exception_has_error_code = BIT(DF_VECTOR) | BIT(TS_VECTOR) |
|
||
|
|
BIT(NP_VECTOR) | BIT(SS_VECTOR) | BIT(GP_VECTOR) |
|
||
|
|
BIT(PF_VECTOR) | BIT(AC_VECTOR);
|
||
|
|
|
||
|
|
return (1U << vector) & exception_has_error_code;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool mmu_is_nested(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.walk_mmu == &vcpu->arch.nested_mmu;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int is_pae(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return kvm_read_cr4_bits(vcpu, X86_CR4_PAE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int is_pse(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return kvm_read_cr4_bits(vcpu, X86_CR4_PSE);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int is_paging(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return likely(kvm_read_cr0_bits(vcpu, X86_CR0_PG));
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool is_pae_paging(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return !is_long_mode(vcpu) && is_pae(vcpu) && is_paging(vcpu);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline u8 vcpu_virt_addr_bits(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return kvm_read_cr4_bits(vcpu, X86_CR4_LA57) ? 57 : 48;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool is_noncanonical_address(u64 la, struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return !__is_canonical_address(la, vcpu_virt_addr_bits(vcpu));
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu,
|
||
|
|
gva_t gva, gfn_t gfn, unsigned access)
|
||
|
|
{
|
||
|
|
u64 gen = kvm_memslots(vcpu->kvm)->generation;
|
||
|
|
|
||
|
|
if (unlikely(gen & KVM_MEMSLOT_GEN_UPDATE_IN_PROGRESS))
|
||
|
|
return;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* If this is a shadow nested page table, the "GVA" is
|
||
|
|
* actually a nGPA.
|
||
|
|
*/
|
||
|
|
vcpu->arch.mmio_gva = mmu_is_nested(vcpu) ? 0 : gva & PAGE_MASK;
|
||
|
|
vcpu->arch.mmio_access = access;
|
||
|
|
vcpu->arch.mmio_gfn = gfn;
|
||
|
|
vcpu->arch.mmio_gen = gen;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool vcpu_match_mmio_gen(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.mmio_gen == kvm_memslots(vcpu->kvm)->generation;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Clear the mmio cache info for the given gva. If gva is MMIO_GVA_ANY, we
|
||
|
|
* clear all mmio cache info.
|
||
|
|
*/
|
||
|
|
#define MMIO_GVA_ANY (~(gva_t)0)
|
||
|
|
|
||
|
|
static inline void vcpu_clear_mmio_info(struct kvm_vcpu *vcpu, gva_t gva)
|
||
|
|
{
|
||
|
|
if (gva != MMIO_GVA_ANY && vcpu->arch.mmio_gva != (gva & PAGE_MASK))
|
||
|
|
return;
|
||
|
|
|
||
|
|
vcpu->arch.mmio_gva = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool vcpu_match_mmio_gva(struct kvm_vcpu *vcpu, unsigned long gva)
|
||
|
|
{
|
||
|
|
if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gva &&
|
||
|
|
vcpu->arch.mmio_gva == (gva & PAGE_MASK))
|
||
|
|
return true;
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool vcpu_match_mmio_gpa(struct kvm_vcpu *vcpu, gpa_t gpa)
|
||
|
|
{
|
||
|
|
if (vcpu_match_mmio_gen(vcpu) && vcpu->arch.mmio_gfn &&
|
||
|
|
vcpu->arch.mmio_gfn == gpa >> PAGE_SHIFT)
|
||
|
|
return true;
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline unsigned long kvm_register_read(struct kvm_vcpu *vcpu, int reg)
|
||
|
|
{
|
||
|
|
unsigned long val = kvm_register_read_raw(vcpu, reg);
|
||
|
|
|
||
|
|
return is_64_bit_mode(vcpu) ? val : (u32)val;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void kvm_register_write(struct kvm_vcpu *vcpu,
|
||
|
|
int reg, unsigned long val)
|
||
|
|
{
|
||
|
|
if (!is_64_bit_mode(vcpu))
|
||
|
|
val = (u32)val;
|
||
|
|
return kvm_register_write_raw(vcpu, reg, val);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_check_has_quirk(struct kvm *kvm, u64 quirk)
|
||
|
|
{
|
||
|
|
return !(kvm->arch.disabled_quirks & quirk);
|
||
|
|
}
|
||
|
|
|
||
|
|
void kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip);
|
||
|
|
|
||
|
|
u64 get_kvmclock_ns(struct kvm *kvm);
|
||
|
|
|
||
|
|
int kvm_read_guest_virt(struct kvm_vcpu *vcpu,
|
||
|
|
gva_t addr, void *val, unsigned int bytes,
|
||
|
|
struct x86_exception *exception);
|
||
|
|
|
||
|
|
int kvm_write_guest_virt_system(struct kvm_vcpu *vcpu,
|
||
|
|
gva_t addr, void *val, unsigned int bytes,
|
||
|
|
struct x86_exception *exception);
|
||
|
|
|
||
|
|
int handle_ud(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
void kvm_deliver_exception_payload(struct kvm_vcpu *vcpu,
|
||
|
|
struct kvm_queued_exception *ex);
|
||
|
|
|
||
|
|
void kvm_vcpu_mtrr_init(struct kvm_vcpu *vcpu);
|
||
|
|
u8 kvm_mtrr_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn);
|
||
|
|
bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data);
|
||
|
|
int kvm_mtrr_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data);
|
||
|
|
int kvm_mtrr_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
|
||
|
|
bool kvm_mtrr_check_gfn_range_consistency(struct kvm_vcpu *vcpu, gfn_t gfn,
|
||
|
|
int page_num);
|
||
|
|
bool kvm_vector_hashing_enabled(void);
|
||
|
|
void kvm_fixup_and_inject_pf_error(struct kvm_vcpu *vcpu, gva_t gva, u16 error_code);
|
||
|
|
int x86_decode_emulated_instruction(struct kvm_vcpu *vcpu, int emulation_type,
|
||
|
|
void *insn, int insn_len);
|
||
|
|
int x86_emulate_instruction(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa,
|
||
|
|
int emulation_type, void *insn, int insn_len);
|
||
|
|
fastpath_t handle_fastpath_set_msr_irqoff(struct kvm_vcpu *vcpu);
|
||
|
|
|
||
|
|
extern u64 host_xcr0;
|
||
|
|
extern u64 host_xss;
|
||
|
|
|
||
|
|
extern struct kvm_caps kvm_caps;
|
||
|
|
|
||
|
|
extern bool enable_pmu;
|
||
|
|
|
||
|
|
static inline bool kvm_mpx_supported(void)
|
||
|
|
{
|
||
|
|
return (kvm_caps.supported_xcr0 & (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR))
|
||
|
|
== (XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
|
||
|
|
}
|
||
|
|
|
||
|
|
extern unsigned int min_timer_period_us;
|
||
|
|
|
||
|
|
extern bool enable_vmware_backdoor;
|
||
|
|
|
||
|
|
extern int pi_inject_timer;
|
||
|
|
|
||
|
|
extern bool report_ignored_msrs;
|
||
|
|
|
||
|
|
extern bool eager_page_split;
|
||
|
|
|
||
|
|
static inline u64 nsec_to_cycles(struct kvm_vcpu *vcpu, u64 nsec)
|
||
|
|
{
|
||
|
|
return pvclock_scale_delta(nsec, vcpu->arch.virtual_tsc_mult,
|
||
|
|
vcpu->arch.virtual_tsc_shift);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Same "calling convention" as do_div:
|
||
|
|
* - divide (n << 32) by base
|
||
|
|
* - put result in n
|
||
|
|
* - return remainder
|
||
|
|
*/
|
||
|
|
#define do_shl32_div32(n, base) \
|
||
|
|
({ \
|
||
|
|
u32 __quot, __rem; \
|
||
|
|
asm("divl %2" : "=a" (__quot), "=d" (__rem) \
|
||
|
|
: "rm" (base), "0" (0), "1" ((u32) n)); \
|
||
|
|
n = __quot; \
|
||
|
|
__rem; \
|
||
|
|
})
|
||
|
|
|
||
|
|
static inline bool kvm_mwait_in_guest(struct kvm *kvm)
|
||
|
|
{
|
||
|
|
return kvm->arch.mwait_in_guest;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_hlt_in_guest(struct kvm *kvm)
|
||
|
|
{
|
||
|
|
return kvm->arch.hlt_in_guest;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_pause_in_guest(struct kvm *kvm)
|
||
|
|
{
|
||
|
|
return kvm->arch.pause_in_guest;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_cstate_in_guest(struct kvm *kvm)
|
||
|
|
{
|
||
|
|
return kvm->arch.cstate_in_guest;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_notify_vmexit_enabled(struct kvm *kvm)
|
||
|
|
{
|
||
|
|
return kvm->arch.notify_vmexit_flags & KVM_X86_NOTIFY_VMEXIT_ENABLED;
|
||
|
|
}
|
||
|
|
|
||
|
|
enum kvm_intr_type {
|
||
|
|
/* Values are arbitrary, but must be non-zero. */
|
||
|
|
KVM_HANDLING_IRQ = 1,
|
||
|
|
KVM_HANDLING_NMI,
|
||
|
|
};
|
||
|
|
|
||
|
|
static inline void kvm_before_interrupt(struct kvm_vcpu *vcpu,
|
||
|
|
enum kvm_intr_type intr)
|
||
|
|
{
|
||
|
|
WRITE_ONCE(vcpu->arch.handling_intr_from_guest, (u8)intr);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void kvm_after_interrupt(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
WRITE_ONCE(vcpu->arch.handling_intr_from_guest, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_handling_nmi_from_guest(struct kvm_vcpu *vcpu)
|
||
|
|
{
|
||
|
|
return vcpu->arch.handling_intr_from_guest == KVM_HANDLING_NMI;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_pat_valid(u64 data)
|
||
|
|
{
|
||
|
|
if (data & 0xF8F8F8F8F8F8F8F8ull)
|
||
|
|
return false;
|
||
|
|
/* 0, 1, 4, 5, 6, 7 are valid values. */
|
||
|
|
return (data | ((data & 0x0202020202020202ull) << 1)) == data;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline bool kvm_dr7_valid(u64 data)
|
||
|
|
{
|
||
|
|
/* Bits [63:32] are reserved */
|
||
|
|
return !(data >> 32);
|
||
|
|
}
|
||
|
|
static inline bool kvm_dr6_valid(u64 data)
|
||
|
|
{
|
||
|
|
/* Bits [63:32] are reserved */
|
||
|
|
return !(data >> 32);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Trigger machine check on the host. We assume all the MSRs are already set up
|
||
|
|
* by the CPU and that we still run on the same CPU as the MCE occurred on.
|
||
|
|
* We pass a fake environment to the machine check handler because we want
|
||
|
|
* the guest to be always treated like user space, no matter what context
|
||
|
|
* it used internally.
|
||
|
|
*/
|
||
|
|
static inline void kvm_machine_check(void)
|
||
|
|
{
|
||
|
|
#if defined(CONFIG_X86_MCE)
|
||
|
|
struct pt_regs regs = {
|
||
|
|
.cs = 3, /* Fake ring 3 no matter what the guest ran on */
|
||
|
|
.flags = X86_EFLAGS_IF,
|
||
|
|
};
|
||
|
|
|
||
|
|
do_machine_check(®s);
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
void kvm_load_guest_xsave_state(struct kvm_vcpu *vcpu);
|
||
|
|
void kvm_load_host_xsave_state(struct kvm_vcpu *vcpu);
|
||
|
|
int kvm_spec_ctrl_test_value(u64 value);
|
||
|
|
bool __kvm_is_valid_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
|
||
|
|
int kvm_handle_memory_failure(struct kvm_vcpu *vcpu, int r,
|
||
|
|
struct x86_exception *e);
|
||
|
|
int kvm_handle_invpcid(struct kvm_vcpu *vcpu, unsigned long type, gva_t gva);
|
||
|
|
bool kvm_msr_allowed(struct kvm_vcpu *vcpu, u32 index, u32 type);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Internal error codes that are used to indicate that MSR emulation encountered
|
||
|
|
* an error that should result in #GP in the guest, unless userspace
|
||
|
|
* handles it.
|
||
|
|
*/
|
||
|
|
#define KVM_MSR_RET_INVALID 2 /* in-kernel MSR emulation #GP condition */
|
||
|
|
#define KVM_MSR_RET_FILTERED 3 /* #GP due to userspace MSR filter */
|
||
|
|
|
||
|
|
#define __cr4_reserved_bits(__cpu_has, __c) \
|
||
|
|
({ \
|
||
|
|
u64 __reserved_bits = CR4_RESERVED_BITS; \
|
||
|
|
\
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_XSAVE)) \
|
||
|
|
__reserved_bits |= X86_CR4_OSXSAVE; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_SMEP)) \
|
||
|
|
__reserved_bits |= X86_CR4_SMEP; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_SMAP)) \
|
||
|
|
__reserved_bits |= X86_CR4_SMAP; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_FSGSBASE)) \
|
||
|
|
__reserved_bits |= X86_CR4_FSGSBASE; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_PKU)) \
|
||
|
|
__reserved_bits |= X86_CR4_PKE; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_LA57)) \
|
||
|
|
__reserved_bits |= X86_CR4_LA57; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_UMIP)) \
|
||
|
|
__reserved_bits |= X86_CR4_UMIP; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_VMX)) \
|
||
|
|
__reserved_bits |= X86_CR4_VMXE; \
|
||
|
|
if (!__cpu_has(__c, X86_FEATURE_PCID)) \
|
||
|
|
__reserved_bits |= X86_CR4_PCIDE; \
|
||
|
|
__reserved_bits; \
|
||
|
|
})
|
||
|
|
|
||
|
|
int kvm_sev_es_mmio_write(struct kvm_vcpu *vcpu, gpa_t src, unsigned int bytes,
|
||
|
|
void *dst);
|
||
|
|
int kvm_sev_es_mmio_read(struct kvm_vcpu *vcpu, gpa_t src, unsigned int bytes,
|
||
|
|
void *dst);
|
||
|
|
int kvm_sev_es_string_io(struct kvm_vcpu *vcpu, unsigned int size,
|
||
|
|
unsigned int port, void *data, unsigned int count,
|
||
|
|
int in);
|
||
|
|
|
||
|
|
#endif
|