On Wed, 2 Dec 2020 11:52:22 +1100, Alexey Kardashevskiy wrote:
> When a passthrough IO adapter is removed from a pseries machine using hash
> MMU and the XIVE interrupt mode, the POWER hypervisor expects the guest OS
> to clear all page table entries related to the adapter. If some are still
> present, the RTAS call which isolates the PCI slot returns error 9001
> "valid outstanding translations" and the removal of the IO adapter fails.
> This is because when the PHBs are scanned, Linux maps automatically the
> INTx interrupts in the Linux interrupt number space but these are never
> removed.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/pci: Remove LSI mappings on device teardown
https://git.kernel.org/powerpc/c/450be4960a0fb89b931a6bb3c3f0bb538ac4c03c
cheers
