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authorGlauber Costa <glommer@redhat.com>2011-07-11 15:28:13 -0400
committerAvi Kivity <avi@redhat.com>2011-07-12 13:17:03 +0300
commit9ddabbe72e41ca6794cb4947c70929c9410e6752 (patch)
treec1b4b5dc3f326fcac560211283a65bb626277e7c /arch/mn10300
parent4b6b35f55ca81d3bfdec63b0adb61798702ceb2e (diff)
KVM: KVM Steal time guest/host interface
To implement steal time, we need the hypervisor to pass the guest information about how much time was spent running other processes outside the VM. This is per-vcpu, and using the kvmclock structure for that is an abuse we decided not to make. In this patchset, I am introducing a new msr, KVM_MSR_STEAL_TIME, that holds the memory area address containing information about steal time This patch contains the headers for it. I am keeping it separate to facilitate backports to people who wants to backport the kernel part but not the hypervisor, or the other way around. Signed-off-by: Glauber Costa <glommer@redhat.com> Acked-by: Rik van Riel <riel@redhat.com> Tested-by: Eric B Munson <emunson@mgebm.net> CC: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> CC: Peter Zijlstra <peterz@infradead.org> CC: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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