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Re: [Qemu-devel] [PATCH RESEND 0/2 V2] Virtual Machine Generation ID
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH RESEND 0/2 V2] Virtual Machine Generation ID |
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Date: |
Sun, 14 Sep 2014 15:40:45 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 |
Il 14/09/2014 12:51, Gal Hammer ha scritto:
>>
>> I think because of this, it is a bit simpler to add the device
>> optionally to the SSDT, similar to how the TPM is handled.
>
> Back to SSDT? Didn't you say something about migration issues that
> prevent me from using SSDT because the table's data is modified?
I said you have to either:
1) Use the DSDT, with a dynamic _STA method.
2) Use the SSDT, and only add the device if the device is specified on
the command line. This avoids the avoid migration issues. At this
point the _STA method can be static.
Using the DSDT is possible, it's just that you have to do it as well for
Q35, and I think it is harder than moving it back to the SSDT. Sorry
for not thinking earlier about the different chipsets.
Paolo