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| author | David Gibson <david@gibson.dropbear.id.au> | 2016-11-23 08:14:07 +0300 |
|---|---|---|
| committer | Paul Mackerras <paulus@ozlabs.org> | 2016-11-24 06:23:05 +0300 |
| commit | a8acaece5d88db234d0b82b8692dea15d602f622 (patch) | |
| tree | dc2dfc2d18e24f94d3567d2254afca82e245eab4 /arch/powerpc/kvm/powerpc.c | |
| parent | a91d5df2b44a0c9b171ac47a48e02e762c8224e9 (diff) | |
| download | linux-a8acaece5d88db234d0b82b8692dea15d602f622.tar.xz | |
KVM: PPC: Correctly report KVM_CAP_PPC_ALLOC_HTAB
At present KVM on powerpc always reports KVM_CAP_PPC_ALLOC_HTAB as enabled.
However, the ioctl() it advertises (KVM_PPC_ALLOCATE_HTAB) only actually
works on KVM HV. On KVM PR it will fail with ENOTTY.
QEMU already has a workaround for this, so it's not breaking things in
practice, but it would be better to advertise this correctly.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index b5e470571470..efd1183a6b16 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -536,7 +536,6 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) #ifdef CONFIG_PPC_BOOK3S_64 case KVM_CAP_SPAPR_TCE: case KVM_CAP_SPAPR_TCE_64: - case KVM_CAP_PPC_ALLOC_HTAB: case KVM_CAP_PPC_RTAS: case KVM_CAP_PPC_FIXUP_HCALL: case KVM_CAP_PPC_ENABLE_HCALL: @@ -545,6 +544,10 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) #endif r = 1; break; + + case KVM_CAP_PPC_ALLOC_HTAB: + r = hv_enabled; + break; #endif /* CONFIG_PPC_BOOK3S_64 */ #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE case KVM_CAP_PPC_SMT: |