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Re: [Qemu-devel] page fault during ins
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From: |
Piotras |
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Subject: |
Re: [Qemu-devel] page fault during ins |
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Date: |
Wed, 15 Dec 2004 09:17:23 +0100 |
Do we have any device where iomem read changes device state?
Wouldn't such hardware cause problems with speculative execution
(memory reads) on some real CPUs? Or am I missing something?
Piotrek
On Tue, 14 Dec 2004 22:40:15 +0100, Fabrice Bellard <address@hidden> wrote:
> Another issue could be problems with 'movsw': the CPU could verify that
> it can write before doing the read to avoid restarting problems when
> talking to memory mapped devices...
>
> Fabrice.