From mboxrd@z Thu Jan 1 00:00:00 1970 From: Avi Kivity Subject: commit 80917728e43e248155c019f743655806b582b099 Date: Tue, 31 Jul 2007 10:17:20 +0300 Message-ID: <118586624088-git-send-email-avi@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Torvalds Return-path: 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 KVM: x86 emulator: disable writeback for debug register instructions These are handled internally by the instruction. Signed-off-by: Avi Kivity diff --git a/drivers/kvm/x86_emulate.c b/drivers/kvm/x86_emulate.c index 1a90ba0..2136da5 100644 --- a/drivers/kvm/x86_emulate.c +++ b/drivers/kvm/x86_emulate.c @@ -1222,11 +1222,13 @@ twobyte_insn: } break; case 0x21: /* mov from dr to reg */ + no_wb = 1; if (modrm_mod != 3) goto cannot_emulate; rc = emulator_get_dr(ctxt, modrm_reg, &_regs[modrm_rm]); break; case 0x23: /* mov from reg to dr */ + no_wb = 1; if (modrm_mod != 3) goto cannot_emulate; rc = emulator_set_dr(ctxt, modrm_reg, _regs[modrm_rm]); ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/