174 lines
4.1 KiB
C
174 lines
4.1 KiB
C
#ifndef ARCH_X86_KVM_X86_H
|
|
#define ARCH_X86_KVM_X86_H
|
|
|
|
#include <linux/kvm_host.h>
|
|
#include "kvm_cache_regs.h"
|
|
|
|
static inline void kvm_clear_exception_queue(struct kvm_vcpu *vcpu)
|
|
{
|
|
vcpu->arch.exception.pending = false;
|
|
}
|
|
|
|
static inline void kvm_queue_interrupt(struct kvm_vcpu *vcpu, u8 vector,
|
|
bool soft)
|
|
{
|
|
vcpu->arch.interrupt.pending = 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.pending = false;
|
|
}
|
|
|
|
static inline bool kvm_event_needs_reinjection(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.exception.pending || vcpu->arch.interrupt.pending ||
|
|
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;
|
|
|
|
if (!is_long_mode(vcpu))
|
|
return false;
|
|
kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
|
|
return cs_l;
|
|
}
|
|
|
|
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 u32 bit(int bitno)
|
|
{
|
|
return 1 << (bitno & 31);
|
|
}
|
|
|
|
static inline void vcpu_cache_mmio_info(struct kvm_vcpu *vcpu,
|
|
gva_t gva, gfn_t gfn, unsigned access)
|
|
{
|
|
vcpu->arch.mmio_gva = gva & PAGE_MASK;
|
|
vcpu->arch.access = access;
|
|
vcpu->arch.mmio_gfn = gfn;
|
|
vcpu->arch.mmio_gen = kvm_memslots(vcpu->kvm)->generation;
|
|
}
|
|
|
|
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_readl(struct kvm_vcpu *vcpu,
|
|
enum kvm_reg reg)
|
|
{
|
|
unsigned long val = kvm_register_read(vcpu, reg);
|
|
|
|
return is_64_bit_mode(vcpu) ? val : (u32)val;
|
|
}
|
|
|
|
static inline void kvm_register_writel(struct kvm_vcpu *vcpu,
|
|
enum kvm_reg reg,
|
|
unsigned long val)
|
|
{
|
|
if (!is_64_bit_mode(vcpu))
|
|
val = (u32)val;
|
|
return kvm_register_write(vcpu, reg, val);
|
|
}
|
|
|
|
void kvm_before_handle_nmi(struct kvm_vcpu *vcpu);
|
|
void kvm_after_handle_nmi(struct kvm_vcpu *vcpu);
|
|
int kvm_inject_realmode_interrupt(struct kvm_vcpu *vcpu, int irq, int inc_eip);
|
|
|
|
void kvm_write_tsc(struct kvm_vcpu *vcpu, struct msr_data *msr);
|
|
|
|
int kvm_read_guest_virt(struct x86_emulate_ctxt *ctxt,
|
|
gva_t addr, void *val, unsigned int bytes,
|
|
struct x86_exception *exception);
|
|
|
|
int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
|
|
gva_t addr, void *val, unsigned int bytes,
|
|
struct x86_exception *exception);
|
|
|
|
bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data);
|
|
|
|
#define KVM_SUPPORTED_XCR0 (XSTATE_FP | XSTATE_SSE | XSTATE_YMM \
|
|
| XSTATE_BNDREGS | XSTATE_BNDCSR)
|
|
extern u64 host_xcr0;
|
|
|
|
extern u64 kvm_supported_xcr0(void);
|
|
|
|
extern unsigned int min_timer_period_us;
|
|
|
|
extern struct static_key kvm_no_apic_vcpu;
|
|
#endif
|