From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52086) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMtnD-0006Tg-Cj for qemu-devel@nongnu.org; Tue, 12 Jul 2016 05:15:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bMtnA-0005Wo-4V for qemu-devel@nongnu.org; Tue, 12 Jul 2016 05:15:51 -0400 Received: from mail-wm0-x242.google.com ([2a00:1450:400c:c09::242]:34341) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bMtn9-0005Wi-Tr for qemu-devel@nongnu.org; Tue, 12 Jul 2016 05:15:48 -0400 Received: by mail-wm0-x242.google.com with SMTP id w75so1464905wmd.1 for ; Tue, 12 Jul 2016 02:15:47 -0700 (PDT) Sender: Paolo Bonzini From: Paolo Bonzini Date: Tue, 12 Jul 2016 11:15:44 +0200 Message-Id: <1468314944-22273-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PATCH for 2.7] target-i386: add support for UMIP and RDPID CPUID bits List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ehabkost@redhat.com These are both stored in CPUID[EAX=7,EBX=0].ECX. KVM is going to be able to emulate both (albeit with a performance loss in the case of RDPID, which therefore will be in KVM_GET_EMULATED_CPUID rather than KVM_GET_SUPPORTED_CPUID). It's also possible to implement both in TCG, but this is for 2.8. Signed-off-by: Paolo Bonzini --- target-i386/cpu.c | 4 ++-- target-i386/cpu.h | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 3bd3cfc..7fc86c3 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -264,12 +264,12 @@ static const char *cpuid_7_0_ebx_feature_name[] = { }; static const char *cpuid_7_0_ecx_feature_name[] = { - NULL, NULL, NULL, "pku", + NULL, NULL, "umip", "pku", "ospke", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, NULL, "rdpid", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 474b0b9..0ed3b56 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -606,8 +606,10 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS]; #define CPUID_7_0_EBX_AVX512ER (1U << 27) /* AVX-512 Exponential and Reciprocal */ #define CPUID_7_0_EBX_AVX512CD (1U << 28) /* AVX-512 Conflict Detection */ +#define CPUID_7_0_ECX_UMIP (1U << 2) #define CPUID_7_0_ECX_PKU (1U << 3) #define CPUID_7_0_ECX_OSPKE (1U << 4) +#define CPUID_7_0_ECX_RDPID (1U << 22) #define CPUID_XSAVE_XSAVEOPT (1U << 0) #define CPUID_XSAVE_XSAVEC (1U << 1) -- 2.7.4