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KVM: x86: add kvm_leave_nested

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commit f9697df251 upstream.

add kvm_leave_nested which wraps a call to nested_ops->leave_nested
into a function.

Cc: stable@vger.kernel.org
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20221103141351.50662-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maxim Levitsky 2022-11-03 16:13:45 +02:00 committed by Greg Kroah-Hartman
parent 5ca2721b7d
commit 97e8e828b7
3 changed files with 7 additions and 7 deletions
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3
arch/x86/kvm/svm/nested.c
View file

@ -1164,9 +1164,6 @@ void svm_free_nested(struct vcpu_svm *svm)
svm->nested.initialized = false;
}
/*
* Forcibly leave nested mode in order to be able to reset the VCPU later on.
*/
void svm_leave_nested(struct kvm_vcpu *vcpu)
{
struct vcpu_svm *svm = to_svm(vcpu);

3
arch/x86/kvm/vmx/nested.c
View file

@ -6294,9 +6294,6 @@ static int vmx_get_nested_state(struct kvm_vcpu *vcpu,
return kvm_state.size;
}
/*
* Forcibly leave nested mode in order to be able to reset the VCPU later on.
*/
void vmx_leave_nested(struct kvm_vcpu *vcpu)
{
if (is_guest_mode(vcpu)) {

8
arch/x86/kvm/x86.c
View file

@ -611,6 +611,12 @@ void kvm_deliver_exception_payload(struct kvm_vcpu *vcpu)
}
EXPORT_SYMBOL_GPL(kvm_deliver_exception_payload);
/* Forcibly leave the nested mode in cases like a vCPU reset */
static void kvm_leave_nested(struct kvm_vcpu *vcpu)
{
kvm_x86_ops.nested_ops->leave_nested(vcpu);
}
static void kvm_multiple_exception(struct kvm_vcpu *vcpu,
unsigned nr, bool has_error, u32 error_code,
bool has_payload, unsigned long payload, bool reinject)
@ -5154,7 +5160,7 @@ static int kvm_vcpu_ioctl_x86_set_vcpu_events(struct kvm_vcpu *vcpu,
if (events->flags & KVM_VCPUEVENT_VALID_SMM) {
if (!!(vcpu->arch.hflags & HF_SMM_MASK) != events->smi.smm) {
kvm_x86_ops.nested_ops->leave_nested(vcpu);
kvm_leave_nested(vcpu);
kvm_smm_changed(vcpu, events->smi.smm);
}