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linux/arch/x86/kvm
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Marcelo Tosatti b48aa97e38 KVM: x86: require matched TSC offsets for master clock 
With master clock, a pvclock clock read calculates:

ret = system_timestamp + [ (rdtsc + tsc_offset) - tsc_timestamp ]

Where 'rdtsc' is the host TSC.

system_timestamp and tsc_timestamp are unique, one tuple
per VM: the "master clock".

Given a host with synchronized TSCs, its obvious that
guest TSC must be matched for the above to guarantee monotonicity.

Allow master clock usage only if guest TSCs are synchronized.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2012-11-27 23:29:15 -02:00
..
cpuid.c KVM: x86: minor size optimization 2012-09-05 12:41:09 +03:00
cpuid.h KVM: VMX: Implement PCID/INVPCID for guests with EPT 2012-07-12 13:07:34 +03:00
emulate.c KVM: emulator: optimize "rep ins" handling 2012-09-06 18:07:38 +03:00
i8254.c KVM: fold kvm_pit_timer into kvm_kpit_state 2012-08-01 00:21:07 -03:00
i8254.h KVM: fold kvm_pit_timer into kvm_kpit_state 2012-08-01 00:21:07 -03:00
i8259.c KVM: PIC: fix use of uninitialised variable. 2012-09-04 15:44:42 +03:00
irq.c KVM: fix typo in copyright notice 2010-10-24 10:53:14 +02:00
irq.h KVM: switch to symbolic name for irq_states size 2012-07-20 16:12:16 -03:00
Kconfig KVM: Depend on HIGH_RES_TIMERS 2012-09-10 11:10:03 +03:00
kvm_cache_regs.h KVM: MMU: Do not unconditionally read PDPTE from guest memory 2011-09-25 19:18:01 +03:00
lapic.c KVM: x86: pass host_tsc to read_l1_tsc 2012-11-27 23:29:11 -02:00
lapic.h KVM: optimize apic interrupt delivery 2012-09-20 15:05:26 +03:00
Makefile KVM: Remove internal timer abstraction 2012-08-01 00:21:06 -03:00
mmu.c KVM: do not treat noslot pfn as a error pfn 2012-10-29 20:31:04 -02:00
mmu.h KVM: MMU: Optimize is_last_gpte() 2012-09-20 13:00:09 +03:00
mmu_audit.c KVM: do not release the error pfn 2012-08-06 16:04:57 +03:00
mmutrace.h KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint 2012-07-11 16:51:22 +03:00
paging_tmpl.h KVM: do not treat noslot pfn as a error pfn 2012-10-29 20:31:04 -02:00
pmu.c Merge branch 'queue' into next 2012-07-26 11:54:21 +03:00
svm.c KVM: x86: add kvm_arch_vcpu_postcreate callback, move TSC initialization 2012-11-27 23:29:14 -02:00
trace.h KVM: x86: require matched TSC offsets for master clock 2012-11-27 23:29:15 -02:00
tss.h KVM: x86: hardware task switching support 2008-04-27 12:00:39 +03:00
vmx.c KVM: x86: add kvm_arch_vcpu_postcreate callback, move TSC initialization 2012-11-27 23:29:14 -02:00
x86.c KVM: x86: require matched TSC offsets for master clock 2012-11-27 23:29:15 -02:00
x86.h KVM: use jump label to optimize checking for in kernel local apic presence 2012-08-06 19:00:44 +03:00