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Re: [PATCH 0/5] vfio/pci: Fix up breakage against split irqchip and INTx
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From: |
Paolo Bonzini |
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Subject: |
Re: [PATCH 0/5] vfio/pci: Fix up breakage against split irqchip and INTx |
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Date: |
Fri, 28 Feb 2020 16:32:15 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
On 28/02/20 16:25, Peter Xu wrote:
> My current thought is that we keep this hackery in userspace only so
> we keep split+resamplefd forbidden in the kernel and be clean there.
It is better, yes. The kernel solution makes some sense because split
irqchip _does_ have a concept of ioapic GSIs and routes. But the kernel
patch would not fix the fact that remote-irr remains zero, which would
need a userspace change anyway.
Paolo
- Re: [PATCH v1.1 4/5] KVM: Kick resamplefd for split kernel irqchip, (continued)
[PATCH 5/5] Revert "vfio/pci: Disable INTx fast path if using split irqchip", Peter Xu, 2020/02/26
Re: [PATCH 0/5] vfio/pci: Fix up breakage against split irqchip and INTx, Auger Eric, 2020/02/27
Re: [PATCH 0/5] vfio/pci: Fix up breakage against split irqchip and INTx, Paolo Bonzini, 2020/02/28