Re: [PATCH v3] powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2

2020-01-28 Thread Michael Ellerman
On Fri, 2019-12-06 at 03:17:22 UTC, Jordan Niethe wrote: > Commit a25bd72badfa ("powerpc/mm/radix: Workaround prefetch issue with > KVM") introduced a number of workarounds as coming out of a guest with > the mmu enabled would make the cpu would start running in hypervisor > state with the PID valu

Re: [PATCH v3] powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2

2020-01-16 Thread Paul Mackerras
On Fri, Dec 06, 2019 at 02:17:22PM +1100, Jordan Niethe wrote: > Commit a25bd72badfa ("powerpc/mm/radix: Workaround prefetch issue with > KVM") introduced a number of workarounds as coming out of a guest with > the mmu enabled would make the cpu would start running in hypervisor > state with the PI

[PATCH v3] powerpc/mm: Remove kvm radix prefetch workaround for Power9 DD2.2

2019-12-05 Thread Jordan Niethe
Commit a25bd72badfa ("powerpc/mm/radix: Workaround prefetch issue with KVM") introduced a number of workarounds as coming out of a guest with the mmu enabled would make the cpu would start running in hypervisor state with the PID value from the guest. The cpu will then start prefetching for the hyp