From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Eduardo Habkost <ehabkost@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>
Cc: Xiaoyao Li <xiaoyao.li@intel.com>, qemu-devel@nongnu.org
Subject: [PATCH 2/2] i386/cpu: Don't add unavailable_features to env->user_features
Date: Tue, 14 Jul 2020 01:44:36 +0800 [thread overview]
Message-ID: <20200713174436.41070-3-xiaoyao.li@intel.com> (raw)
In-Reply-To: <20200713174436.41070-1-xiaoyao.li@intel.com>
Features unavailable due to absent of their dependent features should
not be added to env->user_features. env->user_features only contains the
feature explicity specified with -feature/+feature by user.
Fixes: 99e24dbdaa68 ("target/i386: introduce generic feature dependency mechanism")
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
---
target/i386/cpu.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 9812d5747f35..fb1de1bd6165 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -6370,7 +6370,6 @@ static void x86_cpu_expand_features(X86CPU *cpu, Error **errp)
unavailable_features & env->user_features[d->to.index],
"This feature depends on other features that were not requested");
- env->user_features[d->to.index] |= unavailable_features;
env->features[d->to.index] &= ~unavailable_features;
}
}
--
2.18.4
next prev parent reply other threads:[~2020-07-13 17:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 17:44 [PATCH 0/2] Fixes for env->user_features Xiaoyao Li
2020-07-13 17:44 ` [PATCH 1/2] i368/cpu: Clear env->user_features after loading versioned CPU model Xiaoyao Li
2020-07-13 18:44 ` Eduardo Habkost
2020-07-13 17:44 ` Xiaoyao Li [this message]
2020-07-13 18:48 ` [PATCH 2/2] i386/cpu: Don't add unavailable_features to env->user_features Eduardo Habkost
2020-07-27 12:01 ` Paolo Bonzini
2020-07-13 18:08 ` [PATCH 0/2] Fixes for env->user_features no-reply
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