This patch adds pkeys support for gva_to_gpa funcions.
Signed-off-by: Huaitong Han <huaitong....@intel.com>
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7a84b83..bd942f3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3960,6 +3960,7 @@ gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu,
gva_t gva,
struct x86_exception *exception)
{
u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0;
+ access |= kvm_read_cr4_bits(vcpu, X86_CR4_PKE) ? PFERR_PK_MASK : 0;
return vcpu->arch.walk_mmu->gva_to_gpa(vcpu, gva, access, exception);
}
@@ -3976,6 +3977,7 @@ gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu,
gva_t gva,
{
u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0;
access |= PFERR_WRITE_MASK;
+ access |= kvm_read_cr4_bits(vcpu, X86_CR4_PKE) ? PFERR_PK_MASK : 0;
return vcpu->arch.walk_mmu->gva_to_gpa(vcpu, gva, access, exception);
}
@@ -4026,10 +4028,13 @@ static int kvm_fetch_guest_virt(struct x86_emulate_ctxt
*ctxt,
u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0;
unsigned offset;
int ret;
+ gpa_t gpa;
+
+ access |= kvm_read_cr4_bits(vcpu, X86_CR4_PKE) ? PFERR_PK_MASK : 0;
/* Inline kvm_read_guest_virt_helper for speed. */
- gpa_t gpa = vcpu->arch.walk_mmu->gva_to_gpa(vcpu, addr,
access|PFERR_FETCH_MASK,
- exception);
+ gpa = vcpu->arch.walk_mmu->gva_to_gpa(vcpu, addr,
+ access | PFERR_FETCH_MASK, exception);
if (unlikely(gpa == UNMAPPED_GVA))
return X86EMUL_PROPAGATE_FAULT;
@@ -4050,6 +4055,7 @@ int kvm_read_guest_virt(struct x86_emulate_ctxt *ctxt,
{
struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
u32 access = (kvm_x86_ops->get_cpl(vcpu) == 3) ? PFERR_USER_MASK : 0;
+ access |= kvm_read_cr4_bits(vcpu, X86_CR4_PKE) ? PFERR_PK_MASK : 0;
return kvm_read_guest_virt_helper(addr, val, bytes, vcpu, access,
exception);
@@ -4073,9 +4079,13 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt
*ctxt,
void *data = val;
int r = X86EMUL_CONTINUE;
+ u32 access = PFERR_WRITE_MASK;
+
+ access |= kvm_read_cr4_bits(vcpu, X86_CR4_PKE) ? PFERR_PK_MASK : 0;
+
while (bytes) {
gpa_t gpa = vcpu->arch.walk_mmu->gva_to_gpa(vcpu, addr,
- PFERR_WRITE_MASK,
+ access,
exception);
unsigned offset = addr & (PAGE_SIZE-1);
unsigned towrite = min(bytes, (unsigned)PAGE_SIZE - offset);
--
2.4.3
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
