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Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation
From: |
Peter Maydell |
Subject: |
Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation |
Date: |
Wed, 22 Jun 2016 22:56:05 +0100 |
On 22 June 2016 at 22:45, Ed Maste <address@hidden> wrote:
> On 22 June 2016 at 16:53, Peter Maydell <address@hidden> wrote:
>>
>> Yeah, it looks like the same bug is also present in UEFI itself
>> (it's super popular!). Laszlo, Ard, do you have a prebuilt
>> UEFI binary with Ard's fix?
>>
>> Probably you'll find that if UEFI is configuring the GIC interrupt
>> groups FreeBSD will boot even without doing it itself, but I
>> think ideally FreeBSD shouldn't assume the bootloader's done
>> that job for it.
>
> Oh, good point. Indeed FreeBSD should not make this assumption. I'm
> not sure how I'd test the FreeBSD fix then though (booting w/o the
> UEFI firmware doing this configuration).
Mmm, tricky. I guess you could hack UEFI to only put the
interrupts it is itself using into group 1 (presumably
the timer interrupt). [I'm guessing FreeBSD doesn't
support Linux-kernel-boot-protocol, or you could use
-kernel.]
-- PMM
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, (continued)
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Shannon Zhao, 2016/06/15
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Andrew Jones, 2016/06/15
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Shannon Zhao, 2016/06/15
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Ed Maste, 2016/06/22
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Peter Maydell, 2016/06/22
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Ed Maste, 2016/06/22
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation,
Peter Maydell <=
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Shannon Zhao, 2016/06/22
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Laszlo Ersek, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Andrew Jones, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Ed Maste, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Laszlo Ersek, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Ard Biesheuvel, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Peter Maydell, 2016/06/23
- Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Ard Biesheuvel, 2016/06/24
Re: [Qemu-devel] [PATCH v3 00/20] GICv3 emulation, Andrew Jones, 2016/06/21