From: Richard Henderson <rth@twiddle.net>
To: Alexander Graf <agraf@suse.de>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] target-s390x: fix LOAD MULTIPLE instruction on page boundary
Date: Tue, 26 May 2015 09:23:37 -0700 [thread overview]
Message-ID: <55649E09.4090707@twiddle.net> (raw)
In-Reply-To: <55639A39.1040408@suse.de>
On 05/25/2015 02:55 PM, Alexander Graf wrote:
> For linux-user we could just implement probe as
>
> foo = load_x_bytes(addr)
> store_x_bytes(addr, foo)
>
> or can we have write-only maps there?
One of these days I'm going to enable softmmu for linux-user, at least as an
option. While direct loads and stores are nice, there are a whole pile of
things that Just Don't Work.
Especially guests with page sizes smaller than the host. Very few of the
linux-user-test-0.3 suite even load e.g. on ppc64/aarch64 with a 64k page size.
r~
next prev parent reply other threads:[~2015-05-26 16:23 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-21 21:32 [Qemu-devel] [PATCH] target-s390x: fix LOAD MULTIPLE instruction on page boundary Aurelien Jarno
2015-05-21 21:42 ` Richard Henderson
2015-05-23 7:59 ` Aurelien Jarno
2015-05-23 19:33 ` Richard Henderson
2015-05-25 20:47 ` Alexander Graf
2015-05-25 21:04 ` Aurelien Jarno
2015-05-25 21:05 ` Aurelien Jarno
2015-05-25 21:55 ` Alexander Graf
2015-05-26 7:09 ` Peter Maydell
2015-05-26 16:23 ` Richard Henderson [this message]
2015-05-21 22:00 ` Alexander Graf
2015-05-23 8:22 ` Aurelien Jarno
2015-05-23 9:26 ` Peter Maydell
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