Re: [PATCH] powerpc/pci: unmap legacy INTx interrupts when a PHB is removed

2020-06-16 Thread Cédric Le Goater
On 6/12/20 9:02 AM, Cédric Le Goater wrote: > When a passthrough IO adapter is removed from a pseries machine using > hash MMU and the XIVE interrupt mode, the POWER hypervisor, pHyp, > expects the guest OS to have cleared all page table entries related to > the adapter. If some are still present,

[PATCH] powerpc/pci: unmap legacy INTx interrupts when a PHB is removed

2020-06-12 Thread Cédric Le Goater
When a passthrough IO adapter is removed from a pseries machine using hash MMU and the XIVE interrupt mode, the POWER hypervisor, pHyp, expects the guest OS to have cleared all page table entries related to the adapter. If some are still present, the RTAS call which isolates the PCI slot returns