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Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on piix4_reset. |
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Date: |
Wed, 18 Dec 2013 17:00:04 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 18/12/2013 16:59, Gal Hammer ha scritto:
>>
>> Note this is not the APIC base address, that one is 80h on the ISA
>> bridge (function 0). You're changing the behavior for 80h on the power
>> management function, which is function 3. The register is "PMBA—POWER
>> MANAGEMENT BASE ADDRESS" and it is indeed initialized by SeaBIOS in
>> piix4_pm_setup (src/fw/pciinit.c).
>
> I think we both made a mistake and the right name is
> "PMREGMISC—MISCELLANEOUS POWER MANAGEMENT (FUNCTION 3)" :-).
Yeah. :) Still, both PMBA and PMREGMISC need to be initialized by SeaBIOS.
Paolo
- Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on piix4_reset., (continued)
Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on piix4_reset., Paolo Bonzini, 2013/12/18
Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on piix4_reset., Gal Hammer, 2013/12/18
- Re: [Qemu-devel] [PATCH] piix: do not reset APIC base address (0x80) on piix4_reset.,
Paolo Bonzini <=