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[Qemu-devel] [PATCH 2/2] Revert "i386: Add CPUID bit for PCONFIG"


From: Robert Hoo
Subject: [Qemu-devel] [PATCH 2/2] Revert "i386: Add CPUID bit for PCONFIG"
Date: Wed, 19 Dec 2018 21:44:41 +0800

This reverts commit 5131dc433df54b37e8e918d8fba7fe10344e7a7b.
For new instruction 'PCONFIG' will not be exposed to guest.

Signed-off-by: Robert Hoo <address@hidden>
---
 target/i386/cpu.c | 2 +-
 target/i386/cpu.h | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index b6113d0..08d4307 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1040,7 +1040,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
{
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
-            NULL, NULL, "pconfig", NULL,
+            NULL, NULL, NULL, NULL,
             NULL, NULL, NULL, NULL,
             NULL, NULL, "spec-ctrl", "stibp",
             NULL, "arch-capabilities", NULL, "ssbd",
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index ef41a03..66707d7 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -692,7 +692,6 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS];
 
 #define CPUID_7_0_EDX_AVX512_4VNNIW (1U << 2) /* AVX512 Neural Network 
Instructions */
 #define CPUID_7_0_EDX_AVX512_4FMAPS (1U << 3) /* AVX512 Multiply Accumulation 
Single Precision */
-#define CPUID_7_0_EDX_PCONFIG (1U << 18)       /* Platform Configuration */
 #define CPUID_7_0_EDX_SPEC_CTRL     (1U << 26) /* Speculation Control */
 #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 */
-- 
1.8.3.1




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