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[Qemu-devel] [PATCH v2 3/9] target-i386: Ensure bit 10 on DR7 is never c


From: Eduardo Habkost
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

Bit 10 of DR7 is documented as always set to 1, so ensure that's
always the case.

Signed-off-by: Eduardo Habkost <address@hidden>
---
 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




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