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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:36:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 15:36:00 -0700
commit08d19f51f05a68ce89a289320ce4ed96e757df72 (patch)
tree31c5d718d0aeaff5083fe533cd6e1f9fbbe846bb /arch/x86/kernel/pvclock.c
parent1c95e1b69073cff5ff179e592fa1a1e182c78a17 (diff)
parent2381ad241d0bea1253a37f314b270848067640bb (diff)
downloadlinux-08d19f51f05a68ce89a289320ce4ed96e757df72.tar.gz
Merge branch 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm
* 'kvm-updates/2.6.28' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: (134 commits) KVM: ia64: Add intel iommu support for guests. KVM: ia64: add directed mmio range support for kvm guests KVM: ia64: Make pmt table be able to hold physical mmio entries. KVM: Move irqchip_in_kernel() from ioapic.h to irq.h KVM: Separate irq ack notification out of arch/x86/kvm/irq.c KVM: Change is_mmio_pfn to kvm_is_mmio_pfn, and make it common for all archs KVM: Move device assignment logic to common code KVM: Device Assignment: Move vtd.c from arch/x86/kvm/ to virt/kvm/ KVM: VMX: enable invlpg exiting if EPT is disabled KVM: x86: Silence various LAPIC-related host kernel messages KVM: Device Assignment: Map mmio pages into VT-d page table KVM: PIC: enhance IPI avoidance KVM: MMU: add "oos_shadow" parameter to disable oos KVM: MMU: speed up mmu_unsync_walk KVM: MMU: out of sync shadow core KVM: MMU: mmu_convert_notrap helper KVM: MMU: awareness of new kvm_mmu_zap_page behaviour KVM: MMU: mmu_parent_walk KVM: x86: trap invlpg KVM: MMU: sync roots on mmu reload ...
Diffstat (limited to 'arch/x86/kernel/pvclock.c')
-rw-r--r--arch/x86/kernel/pvclock.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 05fbe9a0325a..4f9c55f3a7c0 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -97,6 +97,18 @@ static unsigned pvclock_get_time_values(struct pvclock_shadow_time *dst,
return dst->version;
}
+unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
+{
+ u64 pv_tsc_khz = 1000000ULL << 32;
+
+ do_div(pv_tsc_khz, src->tsc_to_system_mul);
+ if (src->tsc_shift < 0)
+ pv_tsc_khz <<= -src->tsc_shift;
+ else
+ pv_tsc_khz >>= src->tsc_shift;
+ return pv_tsc_khz;
+}
+
cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
{
struct pvclock_shadow_time shadow;