From: Gleb Natapov <gleb@redhat.com>
To: kvm@vger.kernel.org
Cc: avi@redhat.com, mtosatti@redhat.com
Subject: [PATCH] Synchronize cpu state with kernel before poking into registers.
Date: Thu, 16 Feb 2012 11:12:51 +0200 [thread overview]
Message-ID: <20120216091251.GD19771@redhat.com> (raw)
Call to kvm_cpu_synchronize_state() is missing. kvm_arch_stop_on_emulation_error may
look at outdated registers here.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/target-i386/kvm.c b/target-i386/kvm.c
index 7079e87..51d0ae7 100644
--- a/target-i386/kvm.c
+++ b/target-i386/kvm.c
@@ -2020,6 +2020,7 @@ int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run)
bool kvm_arch_stop_on_emulation_error(CPUState *env)
{
+ kvm_cpu_synchronize_state(env);
return !(env->cr[0] & CR0_PE_MASK) ||
((env->segs[R_CS].selector & 3) != 3);
}
--
Gleb.
next reply other threads:[~2012-02-16 9:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-16 9:12 Gleb Natapov [this message]
2012-02-16 12:55 ` [PATCH uq/master] Synchronize cpu state with kernel before poking into registers Jan Kiszka
2012-02-16 12:55 ` [Qemu-devel] " Jan Kiszka
2012-02-16 13:59 ` [PATCH] " Avi Kivity
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