Commit 2ac636a6 authored by Sean Christopherson's avatar Sean Christopherson Committed by Paolo Bonzini

KVM: nSVM: Add VMLOAD/VMSAVE helper to deduplicate code

Add another helper layer for VMLOAD+VMSAVE, the code is identical except
for the one line that determines which VMCB is the source and which is
the destination.

No functional change intended.
Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
Message-Id: <20210205005750.3841462-5-seanjc@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 3a87c7e0
......@@ -2118,7 +2118,7 @@ static int vmmcall_interception(struct kvm_vcpu *vcpu)
return kvm_emulate_hypercall(vcpu);
}
static int vmload_interception(struct kvm_vcpu *vcpu)
static int vmload_vmsave_interception(struct kvm_vcpu *vcpu, bool vmload)
{
struct vcpu_svm *svm = to_svm(vcpu);
struct vmcb *vmcb12;
......@@ -2139,37 +2139,24 @@ static int vmload_interception(struct kvm_vcpu *vcpu)
ret = kvm_skip_emulated_instruction(vcpu);
nested_svm_vmloadsave(vmcb12, svm->vmcb);
if (vmload)
nested_svm_vmloadsave(vmcb12, svm->vmcb);
else
nested_svm_vmloadsave(svm->vmcb, vmcb12);
kvm_vcpu_unmap(vcpu, &map, true);
return ret;
}
static int vmsave_interception(struct kvm_vcpu *vcpu)
static int vmload_interception(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);
struct vmcb *vmcb12;
struct kvm_host_map map;
int ret;
if (nested_svm_check_permissions(vcpu))
return 1;
ret = kvm_vcpu_map(vcpu, gpa_to_gfn(svm->vmcb->save.rax), &map);
if (ret) {
if (ret == -EINVAL)
kvm_inject_gp(vcpu, 0);
return 1;
}
vmcb12 = map.hva;
ret = kvm_skip_emulated_instruction(vcpu);
nested_svm_vmloadsave(svm->vmcb, vmcb12);
kvm_vcpu_unmap(vcpu, &map, true);
return vmload_vmsave_interception(vcpu, true);
}
return ret;
static int vmsave_interception(struct kvm_vcpu *vcpu)
{
return vmload_vmsave_interception(vcpu, false);
}
static int vmrun_interception(struct kvm_vcpu *vcpu)
......
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