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Re: [Qemu-devel] [RFC] acpi: add reset register to fadt
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [RFC] acpi: add reset register to fadt |
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Date: |
Mon, 30 Mar 2015 15:59:24 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 |
On 30/03/2015 15:27, Reza Jelveh wrote:
> you are extending structure beyond of what specified by ACPI 1.0b spec,
> that might break guests.
> We probably can't change revision since Windows ACPI implementation
> is mostly 1.0b based so we are stuck with it.
> Patch needs to be tested with Windows guests starting with XP.
>
> Works fine with XP as long as you don't use q35, but i guess that's
> unsupported by xp by default.
Isn't that just because XP doesn't have an AHCI driver? You should
still be able to use XP with q35 and virtio, by using a driver disk. Or
add a PATA controller:
-device piix4-ide,id=pata \
-drive if=none,id=hd,file=... \
-device ide-hd,drive=hd,bus=pata.0
Paolo