[PATCH v19 093/130] KVM: TDX: Implements vcpu request_immediate_exit

isaku.yamahata
2024-02-26T08:28:51Z

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 | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/main.c b/arch/x86/kvm/vmx/main.c
index f2c9d6358f9e..ee6c04959d4c 100644
--- a/arch/x86/kvm/vmx/main.c
+++ b/arch/x86/kvm/vmx/main.c
@@ -372,6 +372,16 @@ 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)) {
+ __kvm_request_immediate_exit(vcpu);
+ return;
+ }
+
+ vmx_request_immediate_exit(vcpu);
+}
+
static u8 vt_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
{
if (is_td_vcpu(vcpu))
@@ -549,7 +559,7 @@ 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