Re: [RFC PATCH v5 079/104] KVM: TDX: Implements vcpu request_immediate_exit

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On 3/4/22 20:49, isaku.yamahata@xxxxxxxxx wrote:
From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>

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@xxxxxxxxx>
---
  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 a0bcc4dca678..404a260796e4 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -280,6 +280,14 @@ 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_op(struct kvm *kvm, void __user *argp)
  {
  	if (!is_td(kvm))
@@ -402,7 +410,7 @@ 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,

Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>



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