KVM: Use kvm_get_rflags() and kvm_set_rflags() instead of the raw versions
Some rflags bits are owned by the host, not guest, so we need to use
kvm_get_rflags() to strip those bits away or kvm_set_rflags() to add them
back.
Signed-off-by: Avi Kivity <avi@redhat.com>
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 6bb15d5..2a19322 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -975,7 +975,7 @@
svm_set_efer(&svm->vcpu, 0);
save->dr6 = 0xffff0ff0;
save->dr7 = 0x400;
- save->rflags = 2;
+ kvm_set_rflags(&svm->vcpu, 2);
save->rip = 0x0000fff0;
svm->vcpu.arch.regs[VCPU_REGS_RIP] = save->rip;
@@ -2127,7 +2127,7 @@
nested_vmcb->save.cr3 = kvm_read_cr3(&svm->vcpu);
nested_vmcb->save.cr2 = vmcb->save.cr2;
nested_vmcb->save.cr4 = svm->vcpu.arch.cr4;
- nested_vmcb->save.rflags = vmcb->save.rflags;
+ nested_vmcb->save.rflags = kvm_get_rflags(&svm->vcpu);
nested_vmcb->save.rip = vmcb->save.rip;
nested_vmcb->save.rsp = vmcb->save.rsp;
nested_vmcb->save.rax = vmcb->save.rax;
@@ -2184,7 +2184,7 @@
svm->vmcb->save.ds = hsave->save.ds;
svm->vmcb->save.gdtr = hsave->save.gdtr;
svm->vmcb->save.idtr = hsave->save.idtr;
- svm->vmcb->save.rflags = hsave->save.rflags;
+ kvm_set_rflags(&svm->vcpu, hsave->save.rflags);
svm_set_efer(&svm->vcpu, hsave->save.efer);
svm_set_cr0(&svm->vcpu, hsave->save.cr0 | X86_CR0_PE);
svm_set_cr4(&svm->vcpu, hsave->save.cr4);
@@ -2312,7 +2312,7 @@
hsave->save.efer = svm->vcpu.arch.efer;
hsave->save.cr0 = kvm_read_cr0(&svm->vcpu);
hsave->save.cr4 = svm->vcpu.arch.cr4;
- hsave->save.rflags = vmcb->save.rflags;
+ hsave->save.rflags = kvm_get_rflags(&svm->vcpu);
hsave->save.rip = kvm_rip_read(&svm->vcpu);
hsave->save.rsp = vmcb->save.rsp;
hsave->save.rax = vmcb->save.rax;
@@ -2323,7 +2323,7 @@
copy_vmcb_control_area(hsave, vmcb);
- if (svm->vmcb->save.rflags & X86_EFLAGS_IF)
+ if (kvm_get_rflags(&svm->vcpu) & X86_EFLAGS_IF)
svm->vcpu.arch.hflags |= HF_HIF_MASK;
else
svm->vcpu.arch.hflags &= ~HF_HIF_MASK;
@@ -2341,7 +2341,7 @@
svm->vmcb->save.ds = nested_vmcb->save.ds;
svm->vmcb->save.gdtr = nested_vmcb->save.gdtr;
svm->vmcb->save.idtr = nested_vmcb->save.idtr;
- svm->vmcb->save.rflags = nested_vmcb->save.rflags;
+ kvm_set_rflags(&svm->vcpu, nested_vmcb->save.rflags);
svm_set_efer(&svm->vcpu, nested_vmcb->save.efer);
svm_set_cr0(&svm->vcpu, nested_vmcb->save.cr0);
svm_set_cr4(&svm->vcpu, nested_vmcb->save.cr4);
@@ -3384,7 +3384,7 @@
(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK))
return 0;
- ret = !!(vmcb->save.rflags & X86_EFLAGS_IF);
+ ret = !!(kvm_get_rflags(vcpu) & X86_EFLAGS_IF);
if (is_guest_mode(vcpu))
return ret && !(svm->vcpu.arch.hflags & HF_VINTR_MASK);
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 5b4cdcb..d09833e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2113,7 +2113,7 @@
if (!is_protmode(vcpu))
return 0;
- if (vmx_get_rflags(vcpu) & X86_EFLAGS_VM) /* if virtual 8086 */
+ if (kvm_get_rflags(vcpu) & X86_EFLAGS_VM) /* if virtual 8086 */
return 3;
return vmcs_read16(GUEST_CS_SELECTOR) & 3;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 934b4c6..3a557ee 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4310,7 +4310,7 @@
kvm_x86_ops->get_cs_db_l_bits(vcpu, &cs_db, &cs_l);
vcpu->arch.emulate_ctxt.vcpu = vcpu;
- vcpu->arch.emulate_ctxt.eflags = kvm_x86_ops->get_rflags(vcpu);
+ vcpu->arch.emulate_ctxt.eflags = kvm_get_rflags(vcpu);
vcpu->arch.emulate_ctxt.eip = kvm_rip_read(vcpu);
vcpu->arch.emulate_ctxt.mode =
(!is_protmode(vcpu)) ? X86EMUL_MODE_REAL :
@@ -4340,7 +4340,7 @@
vcpu->arch.emulate_ctxt.eip = c->eip;
memcpy(vcpu->arch.regs, c->regs, sizeof c->regs);
kvm_rip_write(vcpu, vcpu->arch.emulate_ctxt.eip);
- kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
+ kvm_set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
if (irq == NMI_VECTOR)
vcpu->arch.nmi_pending = false;
@@ -4473,7 +4473,7 @@
r = EMULATE_DONE;
toggle_interruptibility(vcpu, vcpu->arch.emulate_ctxt.interruptibility);
- kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
+ kvm_set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
kvm_make_request(KVM_REQ_EVENT, vcpu);
memcpy(vcpu->arch.regs, c->regs, sizeof c->regs);
kvm_rip_write(vcpu, vcpu->arch.emulate_ctxt.eip);
@@ -5592,7 +5592,7 @@
memcpy(vcpu->arch.regs, c->regs, sizeof c->regs);
kvm_rip_write(vcpu, vcpu->arch.emulate_ctxt.eip);
- kvm_x86_ops->set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
+ kvm_set_rflags(vcpu, vcpu->arch.emulate_ctxt.eflags);
kvm_make_request(KVM_REQ_EVENT, vcpu);
return EMULATE_DONE;
}