arm64: KVM: Add EL1 async abort handler

If we've exited the guest because it has triggered an asynchronous
abort from EL1, 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 <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index fa96fe2bd46969130e2af69c02a8baa33f35a107..08afc69ab1571247bac189a08c542e5f6e2ff50b 100644 (file)
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -173,6 +173,9 @@ int handle_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
        switch (exception_index) {
        case ARM_EXCEPTION_IRQ:
                return 1;
+       case ARM_EXCEPTION_EL1_SERROR:
+               kvm_inject_vabt(vcpu);
+               return 1;
        case ARM_EXCEPTION_TRAP:
                /*
                 * See ARM ARM B1.14.1: "Hyp traps on instructions