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KVM: X86: Make tsc_delta calculation a function of guest tsc
authorJoerg Roedel <joerg.roedel@amd.com>
Fri, 25 Mar 2011 08:44:48 +0000 (09:44 +0100)
committerAvi Kivity <avi@redhat.com>
Wed, 11 May 2011 11:57:04 +0000 (07:57 -0400)
commit8f6055cbaf68cbd9ff2692a2cfa691b43629ccd4
treee178845f4d0f061f90e57337f28be6640da8bd6dtree | snapshot
parent1e993611d0dc879fde25515dc9867d1cfd4c5137commit | diff
KVM: X86: Make tsc_delta calculation a function of guest tsc

The calculation of the tsc_delta value to ensure a
forward-going tsc for the guest is a function of the
host-tsc. This works as long as the guests tsc_khz is equal
to the hosts tsc_khz. With tsc-scaling hardware support this
is not longer true and the tsc_delta needs to be calculated
using guest_tsc values.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c diff | blob | history
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