Re: [PATCH 2/4] KVM: Add unified KVM_GET/SET_VCPU_STATE IOCTL

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On 10/14/2009 01:06 AM, Jan Kiszka wrote:
Add a new IOCTL pair to retrieve or set the VCPU state in one chunk.
More precisely, the IOCTL is able to process a list of substates to be
read or written. This list is easily extensible without breaking the
existing ABI, thus we will no longer have to add new IOCTLs when we
discover a missing VCPU state field or want to support new hardware
features.

This patch establishes the generic infrastructure for KVM_GET/
SET_VCPU_STATE and adds support for the generic substates REGS, SREGS,
FPU, and MP. To avoid code duplication, the entry point for the
corresponding original IOCTLs are converted to make use of the new
infrastructure internally, too.


One last thing - Documentation/kvm/api.txt needs updating. Glauber, this holds for your patches as well.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.

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