[PATCH 05/13] KVM: x86: Refactor emulated exception injection to take the emul context

[Sean Christopherson]

Invert the vcpu->context derivation in inject_emulated_exception() in
preparation for dynamically allocating the emulation context.

Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
---
 arch/x86/kvm/x86.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index a0e87f13af82..9dc6762edb96 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6309,9 +6309,10 @@ static void toggle_interruptibility(struct kvm_vcpu *vcpu, u32 mask)
 	}
 }
 
-static bool inject_emulated_exception(struct kvm_vcpu *vcpu)
+static bool inject_emulated_exception(struct x86_emulate_ctxt *ctxt)
 {
-	struct x86_emulate_ctxt *ctxt = &vcpu->arch.emulate_ctxt;
+	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
+
 	if (ctxt->exception.vector == PF_VECTOR)
 		return kvm_propagate_fault(vcpu, &ctxt->exception);
 
@@ -6718,7 +6719,7 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 				 */
 				WARN_ON_ONCE(ctxt->exception.vector == UD_VECTOR ||
 					     exception_type(ctxt->exception.vector) == EXCPT_TRAP);
-				inject_emulated_exception(vcpu);
+				inject_emulated_exception(ctxt);
 				return 1;
 			}
 			return handle_emulation_failure(vcpu, emulation_type);
@@ -6772,7 +6773,7 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 
 	if (ctxt->have_exception) {
 		r = 1;
-		if (inject_emulated_exception(vcpu))
+		if (inject_emulated_exception(ctxt))
 			return r;
 	} else if (vcpu->arch.pio.count) {
 		if (!vcpu->arch.pio.in) {
-- 
2.24.0