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i386: Add "stibp" flag name 

The STIBP flag may be supported by the host KVM module, so QEMU
can allow it to be configured manually, and it can be exposed to
guests when using "-cpu host".

No additional migration code is required because the whole
contents of spec_ctrl is already migrated in the "cpu/spec_ctrl"
section.

Corresponding KVM patch was submitted at:
https://lore.kernel.org/lkml/20181205191956.31480-1-ehabkost@redhat.com/

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20181210180250.31299-1-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost 2018-12-10 16:02:50 -02:00
parent 9115bb1213
commit 0e89165829
1 changed files with 1 additions and 1 deletions
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2
target/i386/cpu.c
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@ -1042,7 +1042,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
NULL, NULL, NULL, NULL,
NULL, NULL, "pconfig", NULL,
NULL, NULL, NULL, NULL,
NULL, NULL, "spec-ctrl", NULL,
NULL, NULL, "spec-ctrl", "stibp",
NULL, "arch-capabilities", NULL, "ssbd",
},
.cpuid = {