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Re: [Qemu-devel] [Xen-devel] [PATCH v2] xen/pt: Fix a xen passthrough fa
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From: |
Andrew Cooper |
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Subject: |
Re: [Qemu-devel] [Xen-devel] [PATCH v2] xen/pt: Fix a xen passthrough failure |
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Date: |
Mon, 3 Dec 2018 14:12:58 +0000 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 |
On 03/12/2018 05:04, Zhao Yan wrote:
> For some pci device, even its PCI_INTERRUPT_PIN is not 0, it actually
> doesn't support INTx mode, so its machine irq read from host sysfs is 0.
> In that case, report PCI_INTERRUPT_PIN as 0 to guest and let passthrough
> continue.
What causes this problem? It it a non-PCI compliant device? Is it a
device which has legacy lines prohibited?
~Andrew