[PATCH 0/3] powerpc/xive: PCI hotplug fixes under PowerVM

[Michael Ellerman]

On Wed, 29 Apr 2020 09:51:19 +0200, Cédric Le Goater wrote:
> Here are a couple of fixes for PCI hotplug issues for machines running
> under the POWER hypervisor using hash MMU and the XIVE interrupt mode.
> 
> Commit 1ca3dec2b2df ("powerpc/xive: Prevent page fault issues in the
> machine crash handler") forced the mapping of the XIVE ESB page and
> this is now blocking the removal of a passthrough IO adapter because
> the PCI isolation fails with "valid outstanding translations". Under
> KVM, the ESB pages for the adapter interrupts are un-mapped from the
> guest by the hypervisor in the KVM XIVE native device. This is is now
> redundant but it's harmless.
> 
> [...]

Patches 1 & 3 pplied to powerpc/next.

[1/3] powerpc/xive: Clear the page tables for the ESB IO mapping
      https://git.kernel.org/powerpc/c/a101950fcb78b0ba20cd487be6627dea58d55c2b
[3/3] powerpc/xive: Do not expose a debugfs file when XIVE is disabled
      https://git.kernel.org/powerpc/c/0755e85570a4615ca674ad6489d44d63916f1f3e

cheers