[PATCH v7 078/102] KVM: TDX: Implements vcpu request_immediate_exit

isaku.yamahata
2022-06-27T22:00:48Z

From: Isaku Yamahata <isaku.yamahata@intel.com>

Now we are able to inject interrupts into TDX vcpu, it's ready to block TDX
vcpu. Wire up kvm x86 methods for blocking/unblocking vcpu for TDX. To
unblock on pending events, request immediate exit methods is also needed.

Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/kvm/vmx/main.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index 07ea7211c633..d743de7b087c 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -311,6 +311,14 @@ static void vt_enable_irq_window(struct kvm_vcpu *vcpu)
vmx_enable_irq_window(vcpu);
}

+static void vt_request_immediate_exit(struct kvm_vcpu *vcpu)
+{
+ if (is_td_vcpu(vcpu))
+ return __kvm_request_immediate_exit(vcpu);
+
+ vmx_request_immediate_exit(vcpu);
+}
+
static int vt_mem_enc_ioctl(struct kvm *kvm, void __user *argp)
{
if (!is_td(kvm))
@@ -435,7 +443,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
.check_intercept = vmx_check_intercept,
.handle_exit_irqoff = vmx_handle_exit_irqoff,

- .request_immediate_exit = vmx_request_immediate_exit,
+ .request_immediate_exit = vt_request_immediate_exit,

.sched_in = vt_sched_in,

--
2.25.1