* [PATCH] target/i386: add PSCHANGE_NO bit for the ARCH_CAPABILITIES MSR
@ 2019-11-13 14:54 Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2019-11-13 14:54 UTC (permalink / raw)
To: qemu-devel; +Cc: speck for Paolo Bonzini, Jinpu Wang
From: speck for Paolo Bonzini <speck@linutronix.de>
This is required to disable ITLB multihit mitigations in nested
hypervisors.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index a624163ac2..2f60df37c4 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1204,7 +1204,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
.type = MSR_FEATURE_WORD,
.feat_names = {
"rdctl-no", "ibrs-all", "rsba", "skip-l1dfl-vmentry",
- "ssb-no", "mds-no", NULL, NULL,
+ "ssb-no", "mds-no", "pschange-mc-no", NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
--
2.21.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH] target/i386: add PSCHANGE_NO bit for the ARCH_CAPABILITIES MSR
@ 2019-11-13 14:54 Paolo Bonzini
0 siblings, 0 replies; 2+ messages in thread
From: Paolo Bonzini @ 2019-11-13 14:54 UTC (permalink / raw)
To: qemu-devel; +Cc: Jinpu Wang
This is required to disable ITLB multihit mitigations in nested
hypervisors.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
target/i386/cpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index a624163ac2..2f60df37c4 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1204,7 +1204,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
.type = MSR_FEATURE_WORD,
.feat_names = {
"rdctl-no", "ibrs-all", "rsba", "skip-l1dfl-vmentry",
- "ssb-no", "mds-no", NULL, NULL,
+ "ssb-no", "mds-no", "pschange-mc-no", NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL,
--
2.21.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
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