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| author | Paul Mackerras <paulus@ozlabs.org> | 2018-06-07 18:08:02 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2018-06-13 09:45:28 +1000 |
| commit | db96a04a86c73817b4584aa4fa2a3f60a9aa3c52 (patch) | |
| tree | b79c30082d0e82ce5b53dc55ac4135686aed423d /arch | |
| parent | 4f169d21181faad87a6cdb288742e08c808ec0ef (diff) | |
| download | linux-db96a04a86c73817b4584aa4fa2a3f60a9aa3c52.tar.bz2 | |
KVM: PPC: Book3S PR: Enable use on POWER9 bare-metal hosts in HPT mode
It turns out that PR KVM has no dependency on the format of HPTEs,
because it uses functions pointed to by mmu_hash_ops which do all
the formatting and interpretation of HPTEs. Thus we can allow PR
KVM to load on POWER9 bare-metal hosts as long as they are running
in HPT mode.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 5c99b84e0856..c3b8006f0eac 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -2041,13 +2041,9 @@ static int kvmppc_core_check_processor_compat_pr(void) * PR KVM can work on POWER9 inside a guest partition * running in HPT mode. It can't work if we are using * radix translation (because radix provides no way for - * a process to have unique translations in quadrant 3) - * or in a bare-metal HPT-mode host (because POWER9 - * uses a modified HPTE format which the PR KVM code - * has not been adapted to use). + * a process to have unique translations in quadrant 3). */ - if (cpu_has_feature(CPU_FTR_ARCH_300) && - (radix_enabled() || cpu_has_feature(CPU_FTR_HVMODE))) + if (cpu_has_feature(CPU_FTR_ARCH_300) && radix_enabled()) return -EIO; return 0; } |