[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration chec
From: |
Igor Mammedov |
Subject: |
Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks" |
Date: |
Mon, 26 Sep 2022 11:33:11 +0200 |
On Fri, 23 Sep 2022 21:27:08 -0400
Peter Xu <peterx@redhat.com> wrote:
> On Fri, Sep 23, 2022 at 06:03:44PM -0400, Peter Xu wrote:
> > On Fri, Sep 23, 2022 at 10:41:59AM +0200, Igor Mammedov wrote:
> > > It's worth putting history excavation with explanation what is broken and
> > > why
> > > compat stuff is being ignored in the patch.
> >
> > Makes sense, I'll amend the commit message and repost. Thanks,
>
> There's actually one way to slightly remedy this single case, mostly for
> any QEMU 7.1.0 user with -smp <=8 and the intel iommu (as 77250171bdc02 is
> merged only in 7.1.0).
>
> We can have one compact parameter x-eim-enable-kvm-x2apic, setting it "on"
> by default, "off" for 7.1, and "on" for 7.0-.
>
> I'm not very sure whether that'll worth it. Any thoughts?
How it (enabling x2apic API) would affect kvm/guests running with 8 or less CPUs
and with intel iommu + remapping?
>
- [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Peter Xu, 2022/09/21
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Jason Wang, 2022/09/21
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Igor Mammedov, 2022/09/22
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Peter Xu, 2022/09/22
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Igor Mammedov, 2022/09/23
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Igor Mammedov, 2022/09/23
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Peter Xu, 2022/09/23
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Peter Xu, 2022/09/23
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks",
Igor Mammedov <=
- Re: [PATCH] Revert "intel_iommu: Fix irqchip / X2APIC configuration checks", Peter Xu, 2022/09/26