From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>,
Eduardo Habkost <ehabkost@redhat.com>
Subject: [Qemu-devel] [PATCH] i386: Add "stibp" flag name
Date: Mon, 10 Dec 2018 16:02:50 -0200 [thread overview]
Message-ID: <20181210180250.31299-1-ehabkost@redhat.com> (raw)
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>
---
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
reply other threads:[~2018-12-10 18:03 UTC|newest]
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