Re: [PATCH] KVM: PPC: Book3S HV: Handle non-present PTEs in page fault functions

2020-04-16 Thread David Gibson
On Thu, Apr 16, 2020 at 10:07:49AM +0200, Cédric Le Goater wrote: > On 4/16/20 7:03 AM, Paul Mackerras wrote: > > Since cd758a9b57ee "KVM: PPC: Book3S HV: Use __gfn_to_pfn_memslot in HPT > > page fault handler", it's been possible in fairly rare circumstances to > > load a non-present PTE in kvmppc

Re: [PATCH] KVM: PPC: Book3S HV: Handle non-present PTEs in page fault functions

2020-04-16 Thread Cédric Le Goater
On 4/16/20 7:03 AM, Paul Mackerras wrote: > Since cd758a9b57ee "KVM: PPC: Book3S HV: Use __gfn_to_pfn_memslot in HPT > page fault handler", it's been possible in fairly rare circumstances to > load a non-present PTE in kvmppc_book3s_hv_page_fault() when running a > guest on a POWER8 host. > > Beca