From 1e661277e83c9b2e29bf5e2e77f358355aa11c8a Mon Sep 17 00:00:00 2001 From: "plai@redhat.com" Date: Wed, 3 Apr 2019 15:54:28 +0100 Subject: [PATCH 04/10] i386: Add CPUID bit for WBNOINVD RH-Author: plai@redhat.com Message-id: <1554306874-28796-5-git-send-email-plai@redhat.com> Patchwork-id: 85382 O-Subject: [RHEL8.1 qemu-kvm PATCH resend 04/10] i386: Add CPUID bit for WBNOINVD Bugzilla: 1561761 RH-Acked-by: Eduardo Habkost RH-Acked-by: Igor Mammedov RH-Acked-by: Michael S. Tsirkin From: Robert Hoo WBNOINVD: Write back and do not invalidate cache, enumerated by CPUID.(EAX=80000008H, ECX=0):EBX[bit 9]. Signed-off-by: Robert Hoo Message-Id: <1530781798-183214-5-git-send-email-robert.hu@linux.intel.com> Signed-off-by: Eduardo Habkost (cherry picked from commit 59a80a19ca31a6fff9fdbb6b4cf55a5a0767c3bc) Signed-off-by: Paul Lai Resolved Conflicts: target/i386/cpu.h Signed-off-by: Danilo C. L. de Paula --- target/i386/cpu.c | 2 +- target/i386/cpu.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index fec39bd..8b9a9f6 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1036,7 +1036,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, "wbnoinvd", NULL, NULL, "ibpb", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 3b2ea97..dd4493e 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -693,6 +693,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS]; #define KVM_HINTS_DEDICATED (1U << 0) +#define CPUID_8000_0008_EBX_WBNOINVD (1U << 9) /* Write back and + do not invalidate cache */ #define CPUID_8000_0008_EBX_IBPB (1U << 12) /* Indirect Branch Prediction Barrier */ #define CPUID_XSAVE_XSAVEOPT (1U << 0) -- 1.8.3.1