Re: [RFC PATCH kernel 2/2] powerpc/pci: Remove LSI mappings on device teardown

2020-11-13 Thread Cédric Le Goater
On 10/27/20 10:06 AM, Alexey Kardashevskiy wrote: > From: Oliver O'Halloran > > 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

[RFC PATCH kernel 2/2] powerpc/pci: Remove LSI mappings on device teardown

2020-10-27 Thread Alexey Kardashevskiy
From: Oliver O'Halloran 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 slo