x86: KVM guest: paravirtualized clocksource

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This is the guest part of kvm clock implementation
It does not do tsc-only timing, as tsc can have deltas
between cpus, and it did not seem worthy to me to keep
adjusting them.

We do use it, however, for fine-grained adjustment.

Other than that, time comes from the host.

[randy dunlap: add missing include]
[randy dunlap: disallow on Voyager or Visual WS]

Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>

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Glauber de Oliveira Costa 2008-02-15 17:52:48 -02:00 • committed by Avi Kivity

parent 18068523d3

commit 790c73f628

5 changed files with 182 additions and 0 deletions

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11

arch/x86/Kconfig

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1

arch/x86/kernel/Makefile

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160

arch/x86/kernel/kvmclock.c

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5

arch/x86/kernel/setup_32.c

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5

arch/x86/kernel/setup_64.c

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