From: Alexander Graf <agraf@suse.de>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] VMRUN should store the RIP after the instruction
Date: Wed, 04 Jun 2008 16:56:03 +0200 [thread overview]
Message-ID: <4846AD03.5070908@suse.de> (raw)
[-- Attachment #1: Type: text/plain, Size: 216 bytes --]
VMRUN stores the IP which is used to return to the instruction after the
VMRUN in case of a VMEXIT. Due to recent changes, this does not happen
anymore and a VMEXIT simply returns to the VMRUN instruction.
Alex
[-- Attachment #2: qemu-svn-rip.patch --]
[-- Type: text/x-patch, Size: 596 bytes --]
Index: target-i386/op_helper.c
===================================================================
--- target-i386/op_helper.c (revision 4661)
+++ target-i386/op_helper.c (working copy)
@@ -4836,7 +4836,7 @@
svm_save_seg(env->vm_hsave + offsetof(struct vmcb, save.ds),
&env->segs[R_DS]);
- stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP);
+ stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rip), EIP + 3);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rsp), ESP);
stq_phys(env->vm_hsave + offsetof(struct vmcb, save.rax), EAX);
next reply other threads:[~2008-06-04 15:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-04 14:56 Alexander Graf [this message]
2008-06-04 16:13 ` [Qemu-devel] [PATCH] VMRUN should store the RIP after the instruction Anthony Liguori
2008-06-04 16:19 ` Alexander Graf
2008-06-04 17:56 ` Anthony Liguori
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