Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [PATCH v4 06/17] PCI: add SIOV and IMS capability detection | Date | Mon, 09 Nov 2020 15:08:17 +0100 |
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On Mon, Nov 09 2020 at 12:14, Thomas Gleixner wrote: > On Sun, Nov 08 2020 at 15:58, Ashok Raj wrote: >> On Sun, Nov 08, 2020 at 07:47:24PM +0100, Thomas Gleixner wrote: >> But for SIOV devices there is no PASID filtering at the remap level since >> interrupt messages don't carry PASID in the TLP. > > Why do we need PASID for VMM integrity? > > If the device sends a message then the remap unit will see the requester > ID of the device and if the message it sends is not
That made me look at patch 4/17 which adds DEVMSI support to the remap code:
> + case X86_IRQ_ALLOC_TYPE_DEV_MSI: > + irte_prepare_msg(msg, index, sub_handle); > break;
It does not setup any requester-id filter in IRTE. How is that supposed to be correct?
Thanks,
tglx
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