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| author |   Paolo Bonzini <pbonzini@redhat.com> | 2014-12-15 13:06:40 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2014-12-15 13:06:40 +0100 |
| commit | 333bce5aac9e8cb7f6b27e0122a224d17be4dd5d (patch) | |
| tree | 7a171a51d9a999f90dd6f17f2b7dd0997dbc1a38 /Documentation/virtual/kvm/api.txt | |
| parent | KVM: x86: em_ret_far overrides cpl (diff) | |
| parent | arm/arm64: KVM: Require in-kernel vgic for the arch timers (diff) | |
| download | linux-dev-333bce5aac9e8cb7f6b27e0122a224d17be4dd5d.tar.xz linux-dev-333bce5aac9e8cb7f6b27e0122a224d17be4dd5d.zip | |
Merge tag 'kvm-arm-for-3.19-take2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
Second round of changes for KVM for arm/arm64 for v3.19; fixes reboot
problems, clarifies VCPU init, and fixes a regression concerning the
VGIC init flow.
Conflicts:
arch/ia64/kvm/kvm-ia64.c [deleted in HEAD and modified in kvmarm]
Diffstat (limited to 'Documentation/virtual/kvm/api.txt')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 80bfe59fc992..0007fef4ed81 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2478,9 +2478,15 @@ return ENOEXEC for that vcpu. Note that because some registers reflect machine topology, all vcpus should be created before this ioctl is invoked. +Userspace can call this function multiple times for a given vcpu, including +after the vcpu has been run. This will reset the vcpu to its initial +state. All calls to this function after the initial call must use the same +target and same set of feature flags, otherwise EINVAL will be returned. + Possible features: - KVM_ARM_VCPU_POWER_OFF: Starts the CPU in a power-off state. - Depends on KVM_CAP_ARM_PSCI. + Depends on KVM_CAP_ARM_PSCI. If not set, the CPU will be powered on + and execute guest code when KVM_RUN is called. - KVM_ARM_VCPU_EL1_32BIT: Starts the CPU in a 32bit mode. Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only). - KVM_ARM_VCPU_PSCI_0_2: Emulate PSCI v0.2 for the CPU. @@ -2976,6 +2982,15 @@ HVC instruction based PSCI call from the vcpu. The 'type' field describes the system-level event type. The 'flags' field describes architecture specific flags for the system-level event. +Valid values for 'type' are: + KVM_SYSTEM_EVENT_SHUTDOWN -- the guest has requested a shutdown of the + VM. Userspace is not obliged to honour this, and if it does honour + this does not need to destroy the VM synchronously (ie it may call + KVM_RUN again before shutdown finally occurs). + KVM_SYSTEM_EVENT_RESET -- the guest has requested a reset of the VM. + As with SHUTDOWN, userspace can choose to ignore the request, or + to schedule the reset to occur in the future and may call KVM_RUN again. + /* Fix the size of the union. */ char padding[256]; }; |