From: Robin Murphy Sent: Friday, March 18, 2022 3:58 AM
>
> On 2022-03-18 05:12, Michael Kelley (LINUX) wrote:
> > From: Robin Murphy Sent: Thursday, March 17, 2022
> 10:15 AM
> >>
> >> On 2022-03-17 16:25, Michael Kelley via iommu wrote:
> >>> PCI pass-thru devices in a Hyper-V VM are represent
On 2022-03-18 05:12, Michael Kelley (LINUX) wrote:
From: Robin Murphy Sent: Thursday, March 17, 2022 10:15
AM
On 2022-03-17 16:25, Michael Kelley via iommu wrote:
PCI pass-thru devices in a Hyper-V VM are represented as a VMBus
device and as a PCI device. The coherence of the VMbus device i
From: Robin Murphy Sent: Thursday, March 17, 2022 10:15
AM
>
> On 2022-03-17 16:25, Michael Kelley via iommu wrote:
> > PCI pass-thru devices in a Hyper-V VM are represented as a VMBus
> > device and as a PCI device. The coherence of the VMbus device is
> > set based on the VMbus node in ACPI,
On 2022-03-17 16:25, Michael Kelley via iommu wrote:
PCI pass-thru devices in a Hyper-V VM are represented as a VMBus
device and as a PCI device. The coherence of the VMbus device is
set based on the VMbus node in ACPI, but the PCI device has no
ACPI node and defaults to not hardware coherent.
PCI pass-thru devices in a Hyper-V VM are represented as a VMBus
device and as a PCI device. The coherence of the VMbus device is
set based on the VMbus node in ACPI, but the PCI device has no
ACPI node and defaults to not hardware coherent. This results
in extra software coherence management ove
