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| author | Gleb Natapov <gleb@redhat.com> | 2013-10-16 14:30:32 +0200 |
|---|---|---|
| committer | Gleb Natapov <gleb@redhat.com> | 2013-10-16 14:30:32 +0200 |
| commit | d570142674890fe10b3d7d86aa105e3dfce1ddfa (patch) | |
| tree | 8a681c3cd9e21400773e24b32f8849d0f25cf4e7 /Documentation | |
| parent | KVM: Drop FOLL_GET in GUP when doing async page fault (diff) | |
| parent | KVM: ARM: Remove non-ASCII space characters (diff) | |
| download | linux-d570142674890fe10b3d7d86aa105e3dfce1ddfa.tar.xz linux-d570142674890fe10b3d7d86aa105e3dfce1ddfa.zip | |
Merge tag 'kvm-arm-for-3.13-1' of git://git.linaro.org/people/cdall/linux-kvm-arm into next
Updates for KVM/ARM including cpu=host and Cortex-A7 support
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 858aecf21db2..a89a5ee0b940 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2304,7 +2304,31 @@ Possible features: Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only). -4.83 KVM_GET_REG_LIST +4.83 KVM_ARM_PREFERRED_TARGET + +Capability: basic +Architectures: arm, arm64 +Type: vm ioctl +Parameters: struct struct kvm_vcpu_init (out) +Returns: 0 on success; -1 on error +Errors: + ENODEV: no preferred target available for the host + +This queries KVM for preferred CPU target type which can be emulated +by KVM on underlying host. + +The ioctl returns struct kvm_vcpu_init instance containing information +about preferred CPU target type and recommended features for it. The +kvm_vcpu_init->features bitmap returned will have feature bits set if +the preferred target recommends setting these features, but this is +not mandatory. + +The information returned by this ioctl can be used to prepare an instance +of struct kvm_vcpu_init for KVM_ARM_VCPU_INIT ioctl which will result in +in VCPU matching underlying host. + + +4.84 KVM_GET_REG_LIST Capability: basic Architectures: arm, arm64 @@ -2323,8 +2347,7 @@ struct kvm_reg_list { This ioctl returns the guest registers that are supported for the KVM_GET_ONE_REG/KVM_SET_ONE_REG calls. - -4.84 KVM_ARM_SET_DEVICE_ADDR +4.85 KVM_ARM_SET_DEVICE_ADDR Capability: KVM_CAP_ARM_SET_DEVICE_ADDR Architectures: arm, arm64 @@ -2362,7 +2385,7 @@ must be called after calling KVM_CREATE_IRQCHIP, but before calling KVM_RUN on any of the VCPUs. Calling this ioctl twice for any of the base addresses will return -EEXIST. -4.85 KVM_PPC_RTAS_DEFINE_TOKEN +4.86 KVM_PPC_RTAS_DEFINE_TOKEN Capability: KVM_CAP_PPC_RTAS Architectures: ppc |