Thread (52 messages) 52 messages, 2 authors, 2016-09-29

[PULL 28/50] arm: KVM: Add HYP async abort handler

From: Christoffer Dall <hidden>
Date: 2016-09-27 18:05:36
Also in: kvm, kvmarm
Subsystem: arm port, the rest · Maintainers: Russell King, Linus Torvalds

From: Marc Zyngier <redacted>

If we've exited the guest because it has triggered an asynchronous
abort, a possible course of action is to let it know it screwed up
by giving it a Virtual Abort to chew on.

Signed-off-by: Marc Zyngier <redacted>
Signed-off-by: Christoffer Dall <redacted>
---
 arch/arm/kvm/handle_exit.c | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index 3f1ef0d..863fdf4 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -160,6 +160,9 @@ int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
 		exit_handler = kvm_get_exit_handler(vcpu);
 
 		return exit_handler(vcpu, run);
+	case ARM_EXCEPTION_DATA_ABORT:
+		kvm_inject_vabt(vcpu);
+		return 1;
 	default:
 		kvm_pr_unimpl("Unsupported exception type: %d",
 			      exception_index);
-- 
2.9.0
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