KVM: paravirtualized clocksource: host part

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This is the host part of kvm clocksource implementation. As it does
not include clockevents, it is a fairly simple implementation. We
only have to register a per-vcpu area, and start writing to it periodically.

The area is binary compatible with xen, as we use the same shadow_info
structure.

[marcelo: fix bad_page on MSR_KVM_SYSTEM_TIME]
[avi: save full value of the msr, even if enable bit is clear]
[avi: clear previous value of time_page]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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Glauber de Oliveira Costa 2008-02-15 17:52:47 -02:00 • committed by Avi Kivity

parent 24e09cbf48

commit 18068523d3

4 changed files with 145 additions and 1 deletions

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include/linux/kvm.h

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