mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-25 13:43:55 +08:00
8fe8ab46be
In order to track who initiated the call (host or guest) to modify an msr value I have changed function call parameters along the call path. The specific change is to add a struct pointer parameter that points to (index, data, caller) information rather than having this information passed as individual parameters. The initial use for this capability is for updating the IA32_TSC_ADJUST msr while setting the tsc value. It is anticipated that this capability is useful for other tasks. Signed-off-by: Will Auld <will.auld@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
129 lines
2.9 KiB
C
129 lines
2.9 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 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;
|
|
}
|
|
|
|
/*
|
|
* Clear the mmio cache info for the given gva,
|
|
* specially, if gva is ~0ul, we clear all mmio cache info.
|
|
*/
|
|
static inline void vcpu_clear_mmio_info(struct kvm_vcpu *vcpu, gva_t gva)
|
|
{
|
|
if (gva != (~0ul) && 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->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->arch.mmio_gfn && vcpu->arch.mmio_gfn == gpa >> PAGE_SHIFT)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
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);
|
|
|
|
extern u64 host_xcr0;
|
|
|
|
extern struct static_key kvm_no_apic_vcpu;
|
|
#endif
|