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KVM: PPC: Book3S HV: Introduce new capability for 2nd DAWR

Introduce KVM_CAP_PPC_DAWR1 which can be used by QEMU to query whether KVM supports 2nd DAWR or not. The capability is by default disabled even when the underlying CPU supports 2nd DAWR. QEMU needs to check and enable it manually to use the feature.

Ravi Bangoria committed 5 years ago

Commit d9a47ed1 parent bd1de1a6 files · +35 −0Browse files

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include/uapi/linux/kvm.h+1−0
@@ -1077,6 +1077,7 @@ struct kvm_ppc_resize_hpt { · 1076 unmodified lines
1077#define KVM_CAP_SYS_HYPERV_CPUID 1911077#define KVM_CAP_SYS_HYPERV_CPUID 191
1078#define KVM_CAP_DIRTY_LOG_RING 1921078#define KVM_CAP_DIRTY_LOG_RING 192
1079#define KVM_CAP_X86_BUS_LOCK_EXIT 1931079#define KVM_CAP_X86_BUS_LOCK_EXIT 193
1080#define KVM_CAP_PPC_DAWR1 194
1080 1081
1081#ifdef KVM_CAP_IRQ_ROUTING1082#ifdef KVM_CAP_IRQ_ROUTING
1082 1083