| Message ID | 20230718234512.1690985-5-seanjc@google.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | KVM: guest_memfd() and per-page attributes | expand |
On 7/19/23 01:44, Sean Christopherson wrote: > Signed-off-by: Sean Christopherson<seanjc@google.com> > --- > arch/powerpc/kvm/powerpc.c | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c > index 7197c8256668..5cf9e5e3112a 100644 > --- a/arch/powerpc/kvm/powerpc.c > +++ b/arch/powerpc/kvm/powerpc.c > @@ -634,10 +634,11 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) > case KVM_CAP_SYNC_MMU: > #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE > r = hv_enabled; This could actually be unnecessarily conservative. Even book3s_pr.c knows how to do unmap and set_spte, so it should be able to support KVM_CAP_SYNC_MMU. Alex, Nick, do you remember any of this? This would mean moving KVM_CAP_SYNC_MMU to virt/kvm/kvm_main.c, which is nice. Paolo > -#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER) > - r = 1; > #else > - r = 0; > +#ifndef KVM_ARCH_WANT_MMU_NOTIFIER > + BUILD_BUG(); > +#endif > + r = 1; > #endif > break; > #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 7197c8256668..5cf9e5e3112a 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -634,10 +634,11 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_SYNC_MMU: #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE r = hv_enabled; -#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER) - r = 1; #else - r = 0; +#ifndef KVM_ARCH_WANT_MMU_NOTIFIER + BUILD_BUG(); +#endif + r = 1; #endif break; #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
Signed-off-by: Sean Christopherson <seanjc@google.com> --- arch/powerpc/kvm/powerpc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)