From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras Subject: [PATCH 02/13] kvm/powerpc: Fix kvmppc_core_pending_dec Date: Wed, 11 May 2011 20:38:50 +1000 Message-ID: <20110511103850.GC2837@brick.ozlabs.ibm.com> References: <20110511103443.GA2837@brick.ozlabs.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Alexander Graf To: linuxppc-dev@ozlabs.org, kvm@vger.kernel.org Return-path: Content-Disposition: inline In-Reply-To: <20110511103443.GA2837@brick.ozlabs.ibm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org Sender: linuxppc-dev-bounces+glppe-linuxppc-embedded-2=m.gmane.org@lists.ozlabs.org List-Id: kvm.vger.kernel.org The vcpu->arch.pending_exceptions field is a bitfield indexed by interrupt priority number as returned by kvmppc_book3s_vec2irqprio. However, kvmppc_core_pending_dec was using an interrupt vector shifted by 7 as the bit index. Fix it to use the irqprio value for the decrementer interrupt instead. This problem was found by code inspection. Signed-off-by: Paul Mackerras --- arch/powerpc/kvm/book3s.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c index 3501961..42a2fed 100644 --- a/arch/powerpc/kvm/book3s.c +++ b/arch/powerpc/kvm/book3s.c @@ -237,7 +237,7 @@ void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu) int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu) { - return test_bit(BOOK3S_INTERRUPT_DECREMENTER >> 7, &vcpu->arch.pending_exceptions); + return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions); } void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu) -- 1.7.4.4