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[Qemu-devel] [PATCH 2/6] kvm: add kvmclock to its second bit


From: Marcelo Tosatti
Subject: [Qemu-devel] [PATCH 2/6] kvm: add kvmclock to its second bit
Date: Sat, 16 Apr 2011 19:10:04 -0300

From: Glauber Costa <address@hidden>

We have two bits that can represent kvmclock in cpuid.
They signal the guest which msr set to use. When we tweak flags
involving this value - specially when we use "-", we have to act on both.

Besides adding it to the kvm features list, we also have to "break" the
assumption represented by the break in lookup_feature.

Signed-off-by: Glauber Costa <address@hidden>
Signed-off-by: Avi Kivity <address@hidden>
---
 target-i386/cpuid.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diff --git a/target-i386/cpuid.c b/target-i386/cpuid.c
index 814d13e..5e48d35 100644
--- a/target-i386/cpuid.c
+++ b/target-i386/cpuid.c
@@ -73,7 +73,7 @@ static const char *ext3_feature_name[] = {
 };
 
 static const char *kvm_feature_name[] = {
-    "kvmclock", "kvm_nopiodelay", "kvm_mmu", NULL, "kvm_asyncpf", NULL, NULL, 
NULL,
+    "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, 
NULL, NULL,
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
     NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -193,7 +193,6 @@ static int lookup_feature(uint32_t *pval, const char *s, 
const char *e,
     for (mask = 1, ppc = featureset; mask; mask <<= 1, ++ppc)
         if (*ppc && !altcmp(s, e, *ppc)) {
             *pval |= mask;
-            break;
         }
     return (mask ? 1 : 0);
 }
-- 
1.7.4.2




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