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KVM: Document KVM_SET_TSS_ADDR

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Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity 2010-03-25 12:27:30 +02:00
parent 0f2d8f4dd0
commit 8a5416db83
1 changed files with 18 additions and 0 deletions
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18
Documentation/kvm/api.txt
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@ -795,6 +795,24 @@ It is recommended to use this API instead of the KVM_SET_MEMORY_REGION ioctl.
The KVM_SET_MEMORY_REGION does not allow fine grained control over memory
allocation and is deprecated.
4.35 KVM_SET_TSS_ADDR
Capability: KVM_CAP_SET_TSS_ADDR
Architectures: x86
Type: vm ioctl
Parameters: unsigned long tss_address (in)
Returns: 0 on success, -1 on error
This ioctl defines the physical address of a three-page region in the guest
physical address space. The region must be within the first 4GB of the
guest physical address space and must not conflict with any memory slot
or any mmio address. The guest may malfunction if it accesses this memory
region.
This ioctl is required on Intel-based hosts. This is needed on Intel hardware
because of a quirk in the virtualization implementation (see the internals
documentation when it pops into existence).
5. The kvm_run structure
Application code obtains a pointer to the kvm_run structure by