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-rw-r--r--arch/x86/kvm/x86.c25
1 files changed, 20 insertions, 5 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 45dc2b6a9c8..59084a3981c 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2020,6 +2020,7 @@ int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address)
int emulate_clts(struct kvm_vcpu *vcpu)
{
+ KVMTRACE_0D(CLTS, vcpu, handler);
kvm_x86_ops->set_cr0(vcpu, vcpu->arch.cr0 & ~X86_CR0_TS);
return X86EMUL_CONTINUE;
}
@@ -2600,27 +2601,41 @@ void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
{
+ unsigned long value;
+
kvm_x86_ops->decache_cr4_guest_bits(vcpu);
switch (cr) {
case 0:
- return vcpu->arch.cr0;
+ value = vcpu->arch.cr0;
+ break;
case 2:
- return vcpu->arch.cr2;
+ value = vcpu->arch.cr2;
+ break;
case 3:
- return vcpu->arch.cr3;
+ value = vcpu->arch.cr3;
+ break;
case 4:
- return vcpu->arch.cr4;
+ value = vcpu->arch.cr4;
+ break;
case 8:
- return kvm_get_cr8(vcpu);
+ value = kvm_get_cr8(vcpu);
+ break;
default:
vcpu_printf(vcpu, "%s: unexpected cr %u\n", __func__, cr);
return 0;
}
+ KVMTRACE_3D(CR_READ, vcpu, (u32)cr, (u32)value,
+ (u32)((u64)value >> 32), handler);
+
+ return value;
}
void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
unsigned long *rflags)
{
+ KVMTRACE_3D(CR_WRITE, vcpu, (u32)cr, (u32)val,
+ (u32)((u64)val >> 32), handler);
+
switch (cr) {
case 0:
kvm_set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));