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Re: [Qemu-devel] [Qemu-discuss] error - Guest has not initialized the di
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [Qemu-discuss] error - Guest has not initialized the display yet. |
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Date: |
Thu, 26 Mar 2015 22:00:31 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 26/03/2015 21:55, Peter Maydell wrote:
> I feel like we're recapitulating history here -- is
> c3c1bb99d undoing the fix that a87f39543a made for when we
> tried this a year ago in 360e607, or is there something
> more subtle going on ?
It's more subtle. The patch should only make a difference when
address_space_translate_internal modifies *plen.
The crux of the change is the first operand of this MIN:
- len = MIN(len, (addr | iotlb.addr_mask) - addr + 1);
+ *plen = MIN(*plen, (addr | iotlb.addr_mask) - addr + 1);
changing from len to *plen.
Paolo