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[PULL 22/30] i386: Add CPUID bit for CLZERO and XSAVEERPTR


From: Paolo Bonzini
Subject: [PULL 22/30] i386: Add CPUID bit for CLZERO and XSAVEERPTR
Date: Wed, 2 Oct 2019 18:51:45 +0200

From: Sebastian Andrzej Siewior <address@hidden>

The CPUID bits CLZERO and XSAVEERPTR are availble on AMD's ZEN platform
and could be passed to the guest.

Signed-off-by: Sebastian Andrzej Siewior <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 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 5b771f1..313a2ef 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1130,7 +1130,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = 
{
     [FEAT_8000_0008_EBX] = {
         .type = CPUID_FEATURE_WORD,
         .feat_names = {
-            NULL, NULL, NULL, NULL,
+            "clzero", NULL, "xsaveerptr", NULL,
             NULL, NULL, NULL, NULL,
             NULL, "wbnoinvd", NULL, NULL,
             "ibpb", NULL, NULL, NULL,
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index c62e3b6..033991c 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -723,6 +723,8 @@ typedef uint64_t FeatureWordArray[FEATURE_WORDS];
 
 #define CPUID_7_1_EAX_AVX512_BF16 (1U << 5) /* AVX512 BFloat16 Instruction */
 
+#define CPUID_8000_0008_EBX_CLZERO             (1U << 0) /* CLZERO instruction 
*/
+#define CPUID_8000_0008_EBX_XSAVEERPTR (1U << 2) /* Always save/restore FP 
error pointers */
 #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 */
-- 
1.8.3.1





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