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| author | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2026-06-09 17:09:28 +0200 |
|---|---|---|
| committer | Claudio Imbrenda <imbrenda@linux.ibm.com> | 2026-06-09 17:30:57 +0200 |
| commit | 103ff3a50e3a50a97e2b123d4dccbc8665eb1552 (patch) | |
| tree | 6bdff9694958143882f6b224e6d8104d2d8dbeaa /include/uapi | |
| parent | 782fec4ab945e1f3b9f0ba383fc00c67641d9767 (diff) | |
| download | lwn-103ff3a50e3a50a97e2b123d4dccbc8665eb1552.tar.gz lwn-103ff3a50e3a50a97e2b123d4dccbc8665eb1552.zip | |
KVM: s390: Add capability to support 2G hugepages
Add KVM_CAP_S390_HPAGE_2G to signal to userspace that 2G hugepages may
be used to back the guest; restrictions apply similar to 1M hugepages.
Enable the (for now still ignored) GMAP_FLAG_ALLOW_HPAGE_2G flag for
the guest gmap, and propagate / disable it as necessary.
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20260609150930.665370-3-imbrenda@linux.ibm.com>
Diffstat (limited to 'include/uapi')
| -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 6c8afa2047bf..419011097fa8 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -996,6 +996,7 @@ struct kvm_enable_cap { #define KVM_CAP_S390_USER_OPEREXEC 246 #define KVM_CAP_S390_KEYOP 247 #define KVM_CAP_S390_VSIE_ESAMODE 248 +#define KVM_CAP_S390_HPAGE_2G 249 struct kvm_irq_routing_irqchip { __u32 irqchip; |