From: Eduardo Habkost <ehabkost@redhat.com>
To: qemu-devel@nongnu.org, Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <rth@twiddle.net>
Subject: [Qemu-devel] [PATCH v2 3/9] target-i386: Ensure bit 10 on DR7 is never cleared
Date: Fri, 16 Oct 2015 13:23:33 -0300 [thread overview]
Message-ID: <1445012619-23772-4-git-send-email-ehabkost@redhat.com> (raw)
In-Reply-To: <1445012619-23772-1-git-send-email-ehabkost@redhat.com>
Bit 10 of DR7 is documented as always set to 1, so ensure that's
always the case.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
target-i386/bpt_helper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/target-i386/bpt_helper.c b/target-i386/bpt_helper.c
index 23ce828..493deba 100644
--- a/target-i386/bpt_helper.c
+++ b/target-i386/bpt_helper.c
@@ -113,6 +113,8 @@ void cpu_x86_update_dr7(CPUX86State *env, uint32_t new_dr7)
hw_breakpoint_insert(env, i);
}
}
+
+ env->dr[7] |= DR7_FIXED_1;
}
#endif
--
2.1.0
next prev parent reply other threads:[~2015-10-16 16:23 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-16 16:23 [Qemu-devel] [PATCH v2 0/9] target-i386: Implement debug extensions Eduardo Habkost
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 1/9] target-i386: Introduce cpu_x86_update_dr7 Eduardo Habkost
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 2/9] target-i386: Re-introduce optimal breakpoint removal Eduardo Habkost
2015-10-16 16:23 ` Eduardo Habkost [this message]
2015-10-18 22:58 ` [Qemu-devel] [PATCH v2 3/9] target-i386: Ensure bit 10 on DR7 is never cleared Richard Henderson
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 4/9] target-i386: Move hw_*breakpoint_* functions Eduardo Habkost
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 5/9] target-i386: Optimize setting dr[0-3] Eduardo Habkost
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 6/9] target-i386: Handle I/O breakpoints Eduardo Habkost
2015-10-19 17:30 ` Eduardo Habkost
2015-10-19 17:46 ` Richard Henderson
2015-10-19 17:57 ` Eduardo Habkost
2015-10-20 12:04 ` Paolo Bonzini
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 7/9] target-i386: Check CR4[DE] for processing DR4/DR5 Eduardo Habkost
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 8/9] target-i386: Ensure always-1 bits on DR6 can't be cleared Eduardo Habkost
2015-10-18 23:05 ` Richard Henderson
2015-10-16 16:23 ` [Qemu-devel] [PATCH v2 9/9] target-i386: Add DE to TCG_FEATURES Eduardo Habkost
2015-10-18 23:06 ` Richard Henderson
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