From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51143) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLFSn-0004Kq-B3 for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bLFSk-0004Lu-GG for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32991) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLFSk-0004Lk-A6 for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:54 -0400 From: Eduardo Habkost Date: Thu, 7 Jul 2016 16:59:13 -0300 Message-Id: <1467921562-11796-8-git-send-email-ehabkost@redhat.com> In-Reply-To: <1467921562-11796-1-git-send-email-ehabkost@redhat.com> References: <1467921562-11796-1-git-send-email-ehabkost@redhat.com> Subject: [Qemu-devel] [PULL 07/16] target-i386: TCG can support CPUID.07H:EBX.erms List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Paolo Bonzini , Richard Henderson , qemu-devel@nongnu.org From: Paolo Bonzini ERMS just says "rep movsb" and "rep stosb" are fast. It does not imply any new instruction, so we can support it easily. Signed-off-by: Paolo Bonzini Reviewed-by: Eduardo Habkost Signed-off-by: Eduardo Habkost --- target-i386/cpu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 3bd3cfc..2227f22 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -358,10 +358,11 @@ static const char *cpuid_6_feature_name[] = { #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \ CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \ CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \ - CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE) + CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \ + CPUID_7_0_EBX_ERMS) /* missing: CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2, - CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, + CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, CPUID_7_0_EBX_RDSEED */ #define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_PKU | CPUID_7_0_ECX_OSPKE) #define TCG_APM_FEATURES 0 -- 2.5.5