From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoffer Dall Subject: Re: [PATCH 17/19] arm/arm64: KVM: Inject virtual abort when guest exits on external abort Date: Thu, 8 Sep 2016 11:09:33 +0200 Message-ID: <20160908090933.GV23592@cbox> References: <1473166937-15271-1-git-send-email-marc.zyngier@arm.com> <1473166937-15271-18-git-send-email-marc.zyngier@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu To: Marc Zyngier Return-path: Content-Disposition: inline In-Reply-To: <1473166937-15271-18-git-send-email-marc.zyngier@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org On Tue, Sep 06, 2016 at 02:02:15PM +0100, Marc Zyngier wrote: > If we spot a data abort bearing the ESR_EL2.EA bit set, we know that > this is an external abort, and that should be punished by a the injection nit: s/a// (I can fix this up though) > of an abort. > > Signed-off-by: Marc Zyngier > --- > arch/arm/kvm/mmu.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c > index bda27b6..6827b54 100644 > --- a/arch/arm/kvm/mmu.c > +++ b/arch/arm/kvm/mmu.c > @@ -1434,6 +1434,11 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run) > int ret, idx; > > is_iabt = kvm_vcpu_trap_is_iabt(vcpu); > + if (unlikely(!is_iabt && kvm_vcpu_dabt_isextabt(vcpu))) { > + kvm_inject_vabt(vcpu); > + return 1; > + } > + > fault_ipa = kvm_vcpu_get_fault_ipa(vcpu); > > trace_kvm_guest_fault(*vcpu_pc(vcpu), kvm_vcpu_get_hsr(vcpu), > -- > 2.1.4 >