From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Jan Kiszka <jan.kiszka@web.de>
Subject: Re: [Qemu-devel] [PATCH] linux-user: Fix page_find_alloc for 32-bit use on 64-bit hosts
Date: Wed, 23 Jul 2008 13:26:00 +0100 [thread overview]
Message-ID: <200807231326.00691.paul@codesourcery.com> (raw)
In-Reply-To: <487A658A.3060203@web.de>
On Sunday 13 July 2008, Jan Kiszka wrote:
> page_find_alloc, used e.g. for TB allocation, is not safe on 64-bit
> hosts for 32-bit guests. Patch below fixes this by requesting new pages
> only from the guest-reachable address range.
I'm pretty sure this is wrong. The structures allocated by page_find_alloc do
not need to be accessible by the guest. In fact it's better if they are
outside the guest address space.
Paul
next prev parent reply other threads:[~2008-07-23 12:26 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-13 20:28 [Qemu-devel] [PATCH] linux-user: Fix page_find_alloc for 32-bit use on 64-bit hosts Jan Kiszka
2008-07-23 12:26 ` Paul Brook [this message]
2008-07-23 14:42 ` Jan Kiszka
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