diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
commit | 0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch) | |
tree | 1f675397b924846740b0931b066ddce6f3d7eb3d /Documentation/virtual/kvm/devices/vm.txt | |
parent | 1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff) | |
parent | ebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff) |
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/virtual/kvm/devices/vm.txt')
-rw-r--r-- | Documentation/virtual/kvm/devices/vm.txt | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/Documentation/virtual/kvm/devices/vm.txt b/Documentation/virtual/kvm/devices/vm.txt index 903fc926860b..95ca68d663a4 100644 --- a/Documentation/virtual/kvm/devices/vm.txt +++ b/Documentation/virtual/kvm/devices/vm.txt @@ -176,7 +176,8 @@ Architectures: s390 3.1. ATTRIBUTE: KVM_S390_VM_TOD_HIGH -Allows user space to set/get the TOD clock extension (u8). +Allows user space to set/get the TOD clock extension (u8) (superseded by +KVM_S390_VM_TOD_EXT). Parameters: address of a buffer in user space to store the data (u8) to Returns: -EFAULT if the given address is not accessible from kernel space @@ -190,6 +191,17 @@ the POP (u64). Parameters: address of a buffer in user space to store the data (u64) to Returns: -EFAULT if the given address is not accessible from kernel space +3.3. ATTRIBUTE: KVM_S390_VM_TOD_EXT +Allows user space to set/get bits 0-63 of the TOD clock register as defined in +the POP (u64). If the guest CPU model supports the TOD clock extension (u8), it +also allows user space to get/set it. If the guest CPU model does not support +it, it is stored as 0 and not allowed to be set to a value != 0. + +Parameters: address of a buffer in user space to store the data + (kvm_s390_vm_tod_clock) to +Returns: -EFAULT if the given address is not accessible from kernel space + -EINVAL if setting the TOD clock extension to != 0 is not supported + 4. GROUP: KVM_S390_VM_CRYPTO Architectures: s390 |