[Qemu-devel] [PATCH] i386: Add "stibp" flag name

[Eduardo Habkost]

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/address@hidden/

Signed-off-by: Eduardo Habkost <address@hidden>
---
 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 f81d35e1f9..079678f282 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -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 = {
-- 
2.18.0.rc1.1.g3f1ff2140