| Message ID | 20241010085930.1546800-12-tabba@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: Restricted mapping of guest_memfd at the host and arm64 support | expand |
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 94cff508874b..eec32e537097 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -1496,4 +1496,7 @@ void kvm_set_vm_id_reg(struct kvm *kvm, u32 reg, u64 val); (system_supports_fpmr() && \ kvm_has_feat((k), ID_AA64PFR2_EL1, FPMR, IMP)) +#define kvm_arch_has_private_mem(kvm) \ + (IS_ENABLED(CONFIG_KVM_PRIVATE_MEM) && is_protected_kvm_enabled()) + #endif /* __ARM64_KVM_HOST_H__ */ diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig index ead632ad01b4..fe3451f244b5 100644 --- a/arch/arm64/kvm/Kconfig +++ b/arch/arm64/kvm/Kconfig @@ -38,6 +38,7 @@ menuconfig KVM select HAVE_KVM_VCPU_RUN_PID_CHANGE select SCHED_INFO select GUEST_PERF_EVENTS if PERF_EVENTS + select KVM_GMEM_MAPPABLE help Support hosting virtualized guest machines.
Implement kvm_arch_has_private_mem() in arm64 when pKVM is enabled, and make it dependent on the configuration option. Also, now that the infrastructure is in place for arm64 to support guest private memory, enable it in the arm64 kernel configuration. Signed-off-by: Fuad Tabba <tabba@google.com> --- arch/arm64/include/asm/kvm_host.h | 3 +++ arch/arm64/kvm/Kconfig | 1 + 2 files changed, 4 insertions(+)