File 0135-i386-Add-CPUID-bit-for-WBNOINVD.patch of Package qemu-linux-user.20749

Overview Repositories Revisions Requests Users Attributes Meta

File 0135-i386-Add-CPUID-bit-for-WBNOINVD.patch of Package qemu-linux-user.20749

From: Robert Hoo <robert.hu@linux.intel.com>
Date: Thu, 5 Jul 2018 17:09:57 +0800
Subject: i386: Add CPUID bit for WBNOINVD

WBNOINVD: Write back and do not invalidate cache, enumerated by
CPUID.(EAX=80000008H, ECX=0):EBX[bit 9].

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1530781798-183214-5-git-send-email-robert.hu@linux.intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
(cherry picked from commit 59a80a19ca31a6fff9fdbb6b4cf55a5a0767c3bc)
[BR: BSC#1134880, FATE#327763]
Signed-off-by: Bruce Rogers <brogers@suse.com>
---
 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 c01bdbdd96357c0254288a4ed49f..fc190928fec4a41ba901e3ce7a77 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -513,7 +513,7 @@ 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 78f6dbc026a3419e549467c99d9b..f86030486bb1c976ca3e8df85af8 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -658,6 +658,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 #define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29)  /*Arch Capabilities*/
 #define CPUID_7_0_EDX_SPEC_CTRL_SSBD  (1U << 31) /* Speculative Store Bypass Disable */
 
+#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)

Places

File 0135-i386-Add-CPUID-bit-for-WBNOINVD.patch of Package qemu-linux-user.20749

Places