Re: PVH dom0 and MSIX memory mapping issue

2022-02-25 Thread Roger Pau Monné
On Fri, Feb 25, 2022 at 03:22:59PM +0100, Jan Beulich wrote: > On 25.02.2022 14:50, Alex Olson wrote: > > I realize PVH for dom0 is still experimental, but was trying to see how > > well it > > works in the state of "master". > > > > I found one issue with MSI-X interrupts in dom0 -- a fatal page

Re: PVH dom0 and MSIX memory mapping issue

2022-02-25 Thread Jan Beulich
On 25.02.2022 14:50, Alex Olson wrote: > I realize PVH for dom0 is still experimental, but was trying to see how well > it > works in the state of "master". > > I found one issue with MSI-X interrupts in dom0 -- a fatal page fault occurs > when the MSI-X PBA is accessed from dom0. It looks like

PVH dom0 and MSIX memory mapping issue

2022-02-25 Thread Alex Olson
I realize PVH for dom0 is still experimental, but was trying to see how well it works in the state of "master". I found one issue with MSI-X interrupts in dom0 -- a fatal page fault occurs when the MSI-X PBA is accessed from dom0. It looks like dom0 doesn't have an identity mapping for the PBA of