From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 03/19] arm64: KVM: Add Virtual Abort injection helper
Date: Tue, 6 Sep 2016 14:02:01 +0100 [thread overview]
Message-ID: <1473166937-15271-4-git-send-email-marc.zyngier@arm.com> (raw)
In-Reply-To: <1473166937-15271-1-git-send-email-marc.zyngier@arm.com>
Now that we're able to context switch the HCR_EL2.VA bit, let's
introduce a helper that injects an Abort into a vcpu.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
arch/arm64/include/asm/kvm_emulate.h | 1 +
arch/arm64/kvm/inject_fault.c | 12 ++++++++++++
2 files changed, 13 insertions(+)
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index b336434d..fd9d5fd 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -38,6 +38,7 @@ bool kvm_condition_valid32(const struct kvm_vcpu *vcpu);
void kvm_skip_instr32(struct kvm_vcpu *vcpu, bool is_wide_instr);
void kvm_inject_undefined(struct kvm_vcpu *vcpu);
+void kvm_inject_vabt(struct kvm_vcpu *vcpu);
void kvm_inject_dabt(struct kvm_vcpu *vcpu, unsigned long addr);
void kvm_inject_pabt(struct kvm_vcpu *vcpu, unsigned long addr);
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index 898c0e6..da6a8cf 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -231,3 +231,15 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu)
else
inject_undef64(vcpu);
}
+
+/**
+ * kvm_inject_vabt - inject an async abort / SError into the guest
+ * @vcpu: The VCPU to receive the exception
+ *
+ * It is assumed that this code is called from the VCPU thread and that the
+ * VCPU therefore is not currently executing guest code.
+ */
+void kvm_inject_vabt(struct kvm_vcpu *vcpu)
+{
+ vcpu_set_hcr(vcpu, vcpu_get_hcr(vcpu) | HCR_VSE);
+}
--
2.1.4
next prev parent reply other threads:[~2016-09-06 13:02 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-06 13:01 [PATCH 00/19] Handle guest-generated SErrors/Aborts Marc Zyngier
2016-09-06 13:01 ` [PATCH 01/19] arm64: KVM: Rename HCR_VA to HCR_VSE Marc Zyngier
2016-09-06 13:02 ` [PATCH 02/19] arm64: KVM: Preserve pending vSError in world switch Marc Zyngier
2016-09-06 13:02 ` Marc Zyngier [this message]
2016-09-06 13:02 ` [PATCH 04/19] arm64: KVM: Add exception code to report EL1 asynchronous aborts Marc Zyngier
2016-09-06 13:02 ` [PATCH 05/19] arm64: KVM: Add EL1 async abort handler Marc Zyngier
2016-09-06 13:02 ` [PATCH 06/19] arm64: KVM: Route asynchronous aborts Marc Zyngier
2016-09-06 13:02 ` [PATCH 07/19] arm64: KVM: Allow an exit code to be tagged with an SError Marc Zyngier
2016-09-06 13:02 ` [PATCH 08/19] arm64: KVM: Inject a Virtual SError if it was pending Marc Zyngier
2016-09-06 13:02 ` [PATCH 09/19] arm64: KVM: Handle async aborts delivered while at EL2 Marc Zyngier
2016-09-07 17:03 ` Christoffer Dall
2016-09-07 17:21 ` Marc Zyngier
2016-09-08 8:47 ` Christoffer Dall
2016-09-06 13:02 ` [PATCH 10/19] arm: KVM: Preserve pending Virtual Abort in world switch Marc Zyngier
2016-09-06 13:02 ` [PATCH 11/19] arm: KVM: Add Virtual Abort injection helper Marc Zyngier
2016-09-06 13:02 ` [PATCH 12/19] arm: KVM: Add HYP async abort handler Marc Zyngier
2016-09-06 13:02 ` [PATCH 13/19] arm: KVM: Allow an exit code to be tagged with a Virtual Abort Marc Zyngier
2016-09-06 13:02 ` [PATCH 14/19] arm: KVM: Handle async aborts delivered while at HYP Marc Zyngier
2016-09-06 13:02 ` [PATCH 15/19] arm: KVM: Inject a Virtual Abort if it was pending Marc Zyngier
2016-09-06 13:02 ` [PATCH 16/19] arm: KVM: Drop unreachable HYP abort handlers Marc Zyngier
2016-09-06 13:02 ` [PATCH 17/19] arm/arm64: KVM: Inject virtual abort when guest exits on external abort Marc Zyngier
2016-09-08 9:09 ` Christoffer Dall
2016-09-06 13:02 ` [PATCH 18/19] arm/arm64: KVM: Remove external abort test from MMIO handling Marc Zyngier
2016-09-06 13:02 ` [PATCH 19/19] arm64: KVM: Inject a vSerror if detecting a bad GICV access at EL2 Marc Zyngier
2016-09-08 9:44 ` [PATCH 00/19] Handle guest-generated SErrors/Aborts Christoffer Dall
2016-09-08 9:55 ` Marc Zyngier
2016-09-08 9:47 ` Wei Chen
2016-09-08 10:02 ` Marc Zyngier
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