diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2022-05-11 20:22:22 +0200 |
|---|---|---|
| committer | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2022-05-11 20:22:22 +0200 |
| commit | b7c15a3ce6fea5da3aa836c897a78ac628467d54 (patch) | |
| tree | 0e941036165a7d6261e77a756693f5d0b13bbbe4 /arch/powerpc/kvm/powerpc.c | |
| parent | ef3a6b70507a2add2cd2e01f5eb9b54d561bacb9 (diff) | |
| parent | c5eb0a61238dd6faf37f58c9ce61c9980aaffd7a (diff) | |
Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes
Requested by Zack for vmwgfx fixes.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 9772b176e406..533c4232e5ab 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -425,9 +425,9 @@ int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, return EMULATE_DONE; } - vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu); + kvm_vcpu_srcu_read_lock(vcpu); rc = kvm_read_guest(vcpu->kvm, pte.raddr, ptr, size); - srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx); + kvm_vcpu_srcu_read_unlock(vcpu); if (rc) return EMULATE_DO_MMIO; @@ -705,6 +705,23 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) r = 1; break; #endif + case KVM_CAP_PPC_AIL_MODE_3: + r = 0; + /* + * KVM PR, POWER7, and some POWER9s don't support AIL=3 mode. + * The POWER9s can support it if the guest runs in hash mode, + * but QEMU doesn't necessarily query the capability in time. + */ + if (hv_enabled) { + if (kvmhv_on_pseries()) { + if (pseries_reloc_on_exception()) + r = 1; + } else if (cpu_has_feature(CPU_FTR_ARCH_207S) && + !cpu_has_feature(CPU_FTR_P9_RADIX_PREFETCH_BUG)) { + r = 1; + } + } + break; default: r = 0; break; |