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.

Backports commit 0e8916582991b9fd0b94850a8444b8b80d0a0955 from qemu
This commit is contained in:
Eduardo Habkost 2018-12-18 03:48:45 -05:00 committed by Lioncash
parent 10d7f18674
commit 030aa55c08
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@ -883,7 +883,7 @@ 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 = {