From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: [PATCH 055/104] KVM: Communicate cr8 changes to userspace Date: Mon, 17 Sep 2007 10:31:37 +0200 Message-ID: <11900179482472-git-send-email-avi@qumranet.com> References: <11900179463203-git-send-email-avi@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Return-path: In-Reply-To: <11900179463203-git-send-email-avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Errors-To: kvm-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: kvm.vger.kernel.org From: Yang, Sheng This allows running 64-bit Windows. Signed-off-by: Sheng Yang Signed-off-by: Avi Kivity --- drivers/kvm/vmx.c | 3 ++- include/linux/kvm.h | 1 + 2 files changed, 3 insertions(+), 1 deletions(-) diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index a9b4cb5..cd999c0 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1831,7 +1831,8 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) vcpu_load_rsp_rip(vcpu); set_cr8(vcpu, vcpu->regs[reg]); skip_emulated_instruction(vcpu); - return 1; + kvm_run->exit_reason = KVM_EXIT_SET_TPR; + return 0; }; break; case 2: /* clts */ diff --git a/include/linux/kvm.h b/include/linux/kvm.h index 91a446f..1d5a49c 100644 --- a/include/linux/kvm.h +++ b/include/linux/kvm.h @@ -46,6 +46,7 @@ enum kvm_exit_reason { KVM_EXIT_SHUTDOWN = 8, KVM_EXIT_FAIL_ENTRY = 9, KVM_EXIT_INTR = 10, + KVM_EXIT_SET_TPR = 11 }; /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */ -- 1.5.3 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2005. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/