From: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
To: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Cc: kvm@vger.kernel.org, Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH] emulator: add movdqa tests
Date: Wed, 01 Feb 2012 18:08:58 +0900 [thread overview]
Message-ID: <4F29012A.5030905@oss.ntt.co.jp> (raw)
In-Reply-To: <1326040553-3295-1-git-send-email-stefanha@linux.vnet.ibm.com>
(2012/01/09 1:35), Stefan Hajnoczi wrote:
> The movdqa instruction performs a 128-bit vector move and requires that
> operands are aligned in memory. Unlike the movdqu instruction, a #GP is
> raised if operands are unaligned.
>
> This patch does not exercise misalignment because the CPU detects
> misalignment while still inside the guest and raises #GP. The emulator
> will therefore never meet unaligned movdqa instructions.
>
> Also change "read"/"write" to "store"/"load" to make it obvious whether
> the test transfers to or from memory. Previous usage of "read" and
> "write" was misleading.
>
> Signed-off-by: Stefan Hajnoczi<stefanha@linux.vnet.ibm.com>
> ---
> This test is expected to fail until a patch is merged that implements the
> missing movdqa instruction.
>
What is the status of Stefan's work?
Takuya
next prev parent reply other threads:[~2012-02-01 9:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-08 16:35 [PATCH] emulator: add movdqa tests Stefan Hajnoczi
2012-02-01 9:08 ` Takuya Yoshikawa [this message]
2012-02-01 9:13 ` Avi Kivity
2012-02-01 9:17 ` Takuya Yoshikawa
2012-02-01 9:21 ` Avi Kivity
2012-02-01 9:28 ` Takuya Yoshikawa
2012-02-06 12:00 ` Stefan Hajnoczi
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