From: Igor Kovalenko <igor.v.kovalenko@gmail.com>
To: qemu-devel <qemu-devel@nongnu.org>
Subject: [Qemu-devel] [PATCH] sparc64 flush pending conditional evaluations before exposing cpu state
Date: Wed, 29 Jul 2009 01:32:23 +0400 [thread overview]
Message-ID: <b2fa41d60907281432p42ddf1ado173f2d400016ecc7@mail.gmail.com> (raw)
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If translation block is interrupted by e.g. mmu exception
we need to compute conditional flags for inclusion into
saved cpu state. Otherwise after return from trap
conditional instructions would use stale psr/xcc data.
Signed-off-by: igor.v.kovalenko@gmail.com
--
Kind regards,
Igor V. Kovalenko
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Index: qemu-trunk/target-sparc/translate.c
===================================================================
--- qemu-trunk.orig/target-sparc/translate.c
+++ qemu-trunk/target-sparc/translate.c
@@ -4908,4 +4908,9 @@ void gen_pc_load(CPUState *env, Translat
} else {
env->npc = npc;
}
+
+ /* flush pending conditional evaluations before exposing cpu state */
+ if (CC_OP != CC_OP_FLAGS) {
+ helper_compute_psr();
+ }
}
reply other threads:[~2009-07-28 21:32 UTC|newest]
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