[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH 2/4] q35: set split kernel irqchip as default
From: |
Paolo Bonzini |
Subject: |
Re: [Qemu-devel] [PATCH 2/4] q35: set split kernel irqchip as default |
Date: |
Wed, 19 Dec 2018 21:12:55 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 |
On 19/12/18 09:50, Peter Xu wrote:
> Starting from QEMU 4.0, let's specify "split" as the default value for
> kernel-irqchip.
>
> So for QEMU>=4.0 we'll have: allowed=Y,required=N,split=Y
> for QEMU<=3.1 we'll have: allowed=Y,required=N,split=N
> (omitting all the "kernel_irqchip_" prefix)
>
> Note that this "split" is optional - we'll first try to enable split
> kernel irqchip, and we'll fall back to complete kernel irqchip if we
> found that the kernel capability is missing.
Please just fail completely and require a new kernel for the 4.0 machine
type. There are subtle differences between kernel and QEMU irqchip, I
don't think we want to open that can of worms.
Paolo
[Qemu-devel] [PATCH 3/4] x86-iommu: switch intr_supported to OnOffAuto type, Peter Xu, 2018/12/19
[Qemu-devel] [PATCH 4/4] x86-iommu: turn on IR by default if proper, Peter Xu, 2018/12/19