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Re: [Qemu-devel] [PATCH]bug fix for softmmu slow_st unaligned access
From: |
andrzej zaborowski |
Subject: |
Re: [Qemu-devel] [PATCH]bug fix for softmmu slow_st unaligned access |
Date: |
Sat, 17 Nov 2007 10:54:32 +0100 |
Hi,
On 31/10/2007, TeLeMan <address@hidden> wrote:
> If the 0x10008000 page is writable and 0x10007FFF isn't, softmmu can raise
> this exception before modifing 0x10007FFF-0x10008002 because softmmu checks
> 0x10007FFF at first. I don't know if reversing the order is an exact
> solution,but its simple and working.
Assuming that DATA_SIZE is less than page size, I think it is okay for
a workaround, I committed it. It shows that permissions are checked
two times for the first byte (0x10007ffff) but maybe that's okay since
this is a slow access anyway.
Regards
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