From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Keir Fraser <keir.xen@gmail.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Jacob Shin <jacob.shin@amd.com>,
suravee.suthikulpanit@amd.com, Jan Beulich <JBeulich@suse.com>
Subject: Re: [PATCH 4/4] SVM: streamline entry.S code
Date: Mon, 26 Aug 2013 18:46:40 +0100 [thread overview]
Message-ID: <521B9480.6080509@citrix.com> (raw)
In-Reply-To: <CE414CE4.5B85E%keir.xen@gmail.com>
On 26/08/2013 18:20, Keir Fraser wrote:
>
>> However, I cant find anywhere in the code which overwrites regs->rax from
>> vmcb->rax, which I would have thought would have thought would cause utter
>> devastation in combination with the generic functions working with a
>> cpu_user_regs structure.
> It's right there in entry.S: 'mov VMCB_rax(%rcx),%rax; mov
> %rax,UREGS_rax(%rsp)'
So it is. I feel quite silly right about now. I suspect that I have
been staring at this code a bit too long.
~Andrew
next prev parent reply other threads:[~2013-08-26 17:46 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-23 13:58 [PATCH 0/4] HVM: produce better binary code Jan Beulich
2013-08-23 14:01 ` [PATCH 1/4] VMX: streamline entry.S code Jan Beulich
2013-08-26 10:44 ` Andrew Cooper
2013-08-26 11:01 ` Jan Beulich
2013-08-26 11:48 ` Andrew Cooper
2013-08-26 13:12 ` Jan Beulich
2013-08-26 13:22 ` Andrew Cooper
2013-08-29 11:01 ` Tim Deegan
2013-08-29 12:35 ` Jan Beulich
2013-08-23 14:02 ` [PATCH 2/4] VMX: move various uses of UD2 out of fast paths Jan Beulich
2013-08-23 22:06 ` Andrew Cooper
2013-08-26 8:50 ` Jan Beulich
2013-08-26 9:07 ` Andrew Cooper
2013-08-26 8:58 ` [PATCH v2 " Jan Beulich
2013-08-26 9:09 ` Andrew Cooper
2013-08-29 11:08 ` Tim Deegan
2013-08-23 14:03 ` [PATCH 3/4] VMX: use proper instruction mnemonics if assembler supports them Jan Beulich
2013-08-24 22:18 ` Andrew Cooper
2013-08-26 9:06 ` Jan Beulich
2013-08-26 9:25 ` Andrew Cooper
2013-08-26 9:41 ` Jan Beulich
2013-08-26 10:18 ` [PATCH v3 " Jan Beulich
2013-08-26 13:05 ` Andrew Cooper
2013-08-26 13:20 ` Jan Beulich
2013-08-26 14:03 ` [PATCH v4 " Jan Beulich
2013-08-26 14:18 ` Andrew Cooper
2013-08-26 14:29 ` Jan Beulich
2013-08-26 15:07 ` Andrew Cooper
2013-08-26 15:10 ` Andrew Cooper
2013-08-26 15:30 ` Jan Beulich
2013-08-26 15:29 ` Jan Beulich
2013-08-26 15:33 ` Andrew Cooper
2013-08-26 15:31 ` [PATCH v5 " Jan Beulich
2013-08-26 15:36 ` Andrew Cooper
2013-08-29 11:47 ` Tim Deegan
2013-08-29 12:30 ` Jan Beulich
2013-08-29 13:11 ` Tim Deegan
2013-08-29 13:27 ` Jan Beulich
2013-08-29 14:02 ` Tim Deegan
2013-08-29 12:45 ` Jan Beulich
2013-08-29 13:19 ` Tim Deegan
2013-08-26 9:03 ` [PATCH v2 " Jan Beulich
2013-08-23 14:04 ` [PATCH 4/4] SVM: streamline entry.S code Jan Beulich
2013-08-26 16:20 ` Andrew Cooper
2013-08-26 17:20 ` Keir Fraser
2013-08-26 17:46 ` Andrew Cooper [this message]
2013-08-26 21:47 ` Andrew Cooper
2013-08-27 7:38 ` Jan Beulich
2013-08-29 11:56 ` Tim Deegan
2013-09-04 14:39 ` Boris Ostrovsky
2013-09-04 14:50 ` Jan Beulich
2013-09-04 15:09 ` Boris Ostrovsky
2013-09-04 15:20 ` Jan Beulich
2013-09-04 16:42 ` Boris Ostrovsky
2013-09-05 7:10 ` Jan Beulich
2013-09-04 10:06 ` Ping: [PATCH 0/4] HVM: produce better binary code Jan Beulich
2013-09-04 16:16 ` Andrew Cooper
2013-09-04 16:30 ` Tim Deegan
2013-09-05 7:52 ` Jan Beulich
2013-09-05 7:58 ` Tim Deegan
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