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| author | Paul Mackerras | 2018-10-08 05:24:30 +0200 |
|---|---|---|
| committer | Paul Mackerras | 2018-10-09 07:14:54 +0200 |
| commit | 901f8c3f6feb0225c14b3bc6237850fb921d2f2d (patch) | |
| tree | d9f4edd5ed3899d8270b329990292ba5b52079d4 /include/uapi/linux/kvm.h | |
| parent | KVM: PPC: Book3S HV: Add a VM capability to enable nested virtualization (diff) | |
| download | kernel-qcow2-linux-901f8c3f6feb0225c14b3bc6237850fb921d2f2d.tar.gz kernel-qcow2-linux-901f8c3f6feb0225c14b3bc6237850fb921d2f2d.tar.xz kernel-qcow2-linux-901f8c3f6feb0225c14b3bc6237850fb921d2f2d.zip | |
KVM: PPC: Book3S HV: Add NO_HASH flag to GET_SMMU_INFO ioctl result
This adds a KVM_PPC_NO_HASH flag to the flags field of the
kvm_ppc_smmu_info struct, and arranges for it to be set when
running as a nested hypervisor, as an unambiguous indication
to userspace that HPT guests are not supported. Reporting the
KVM_CAP_PPC_MMU_HASH_V3 capability as false could be taken as
indicating only that the new HPT features in ISA V3.0 are not
supported, leaving it ambiguous whether pre-V3.0 HPT features
are supported.
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Diffstat (limited to 'include/uapi/linux/kvm.h')
| -rw-r--r-- | include/uapi/linux/kvm.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index d9cec6b5cb37..7f2ff3a76995 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -719,6 +719,7 @@ struct kvm_ppc_one_seg_page_size { #define KVM_PPC_PAGE_SIZES_REAL 0x00000001 #define KVM_PPC_1T_SEGMENTS 0x00000002 +#define KVM_PPC_NO_HASH 0x00000004 struct kvm_ppc_smmu_info { __u64 flags; |