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Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec c
From: |
Michael S. Tsirkin |
Subject: |
Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant |
Date: |
Mon, 12 Oct 2009 18:57:57 +0200 |
User-agent: |
Mutt/1.5.19 (2009-01-05) |
On Mon, Oct 12, 2009 at 05:43:39PM +0200, Gerd Hoffmann wrote:
> On 10/12/09 16:52, Gleb Natapov wrote:
>> On Mon, Oct 12, 2009 at 04:50:35PM +0200, Gerd Hoffmann wrote:
>>> pc.c does some magic here to map the complete bios into high memory
>>> and the legacy part at 0xe0000, thats why it is loaded in a
>>> different way. It gets loaded to IO_MEM_ROM memory though, so the
>>> guest should not be able to corrupt it.
>>>
>> But KVM doesn't support it (memory is always writable). And we want to reload
>> BIOS on reboot for migration purposes.
>
> Then it should be switched over to the new rom loader. Also the logic
> which does *not* reload stuff which goes to IO_MEM_ROM must be turned
> off for kvm them.
I think it needs to be turned off anyway. Since ROM is sent over for
migration, it might get out of sync with file even if it is read-only.
> cheers,
> Gerd
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, (continued)
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gerd Hoffmann, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gerd Hoffmann, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Jamie Lokier, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gerd Hoffmann, 2009/10/12
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant,
Michael S. Tsirkin <=
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Jamie Lokier, 2009/10/09
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/09
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Michael S. Tsirkin, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Michael S. Tsirkin, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Michael S. Tsirkin, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Michael S. Tsirkin, 2009/10/11
- Re: [Qemu-devel] Re: [PATCH 2/3] qemu: make cirrus init value pci spec compliant, Gleb Natapov, 2009/10/11