leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity
e12c8f36f3
linux/arch/x86/kvm
History
Wanpeng Li e12c8f36f3 KVM: lapic: adjust preemption timer correctly when goes TSC backward 
TSC_OFFSET will be adjusted if discovers TSC backward during vCPU load.
The preemption timer, which relies on the guest tsc to reprogram its
preemption timer value, is also reprogrammed if vCPU is scheded in to
a different pCPU. However, the current implementation reprogram preemption
timer before TSC_OFFSET is adjusted to the right value, resulting in the
preemption timer firing prematurely.

This patch fix it by adjusting TSC_OFFSET before reprogramming preemption
timer if TSC backward.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krċmář <rkrcmar@redhat.com>
Cc: Yunhong Jiang <yunhong.jiang@intel.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-05 16:14:39 +02:00
..
assigned-dev.c KVM: x86: use list_for_each_entry* 2016-02-23 15:40:54 +01:00
assigned-dev.h KVM: x86: move device assignment out of kvm_host.h 2014-11-24 16:53:50 +01:00
cpuid.c Merge branch 'x86-headers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-08-01 14:23:42 -04:00
cpuid.h Revert "KVM: x86: add pcommit support" 2016-07-23 11:04:23 -07:00
emulate.c x86/kvm: Audit and remove any unnecessary uses of module.h 2016-07-14 15:07:00 +02:00
hyperv.c KVM: Hyper-V: do not do hypercall userspace exits if SynIC is disabled 2016-04-01 12:10:09 +02:00
hyperv.h kvm/x86: Hyper-V SynIC timers 2015-12-16 18:49:45 +01:00
i8254.c KVM: x86: protect KVM_CREATE_PIT/KVM_CREATE_PIT2 with kvm->lock 2016-06-03 15:28:19 +02:00
i8254.h KVM: i8254: turn kvm_kpit_state.reinject into atomic_t 2016-03-04 09:30:25 +01:00
i8259.c KVM: x86: clean/fix memory barriers in irqchip_in_kernel 2015-07-30 16:02:56 +02:00
ioapic.c KVM: x86: Rename kvm_apic_get_reg to kvm_lapic_get_reg 2016-05-18 18:04:25 +02:00
ioapic.h kvm: x86: Track irq vectors in ioapic->rtc_status.dest_map 2016-03-03 14:36:18 +01:00
iommu.c - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
irq_comm.c KVM: x86: add KVM_CAP_X2APIC_API 2016-07-14 09:03:57 +02:00
irq.c x86/kvm: Audit and remove any unnecessary uses of module.h 2016-07-14 15:07:00 +02:00
irq.h KVM: Move kvm_setup_default/empty_irq_routing declaration in arch specific header 2016-07-22 18:52:00 +01:00
Kconfig KVM: remove kvm_vcpu_compatible 2016-06-16 00:05:00 +02:00
kvm_cache_regs.h KVM, pkeys: add pkeys support for permission_fault 2016-03-22 16:23:37 +01:00
lapic.c KVM: lapic: fix access preemption timer stuff even if kernel_irqchip=off 2016-08-04 14:21:43 +02:00
lapic.h KVM: x86: use hardware-compatible format for APIC ID register 2016-07-14 09:03:54 +02:00
Makefile KVM: page track: add the framework of guest page tracking 2016-03-03 14:36:20 +01:00
mmu_audit.c kvm: rename pfn_t to kvm_pfn_t 2016-01-15 17:56:32 -08:00
mmu.c - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
mmu.h kvm: mmu: remove is_present_gpte() 2016-07-14 09:02:47 +02:00
mmutrace.h tracing: Rename ftrace_event.h to trace_events.h 2015-05-13 14:05:12 -04:00
mtrr.c KVM: MTRR: fix kvm_mtrr_check_gfn_range_consistency page fault 2016-07-05 16:14:43 +02:00
page_track.c KVM: page_track: fix access to NULL slot 2016-03-22 17:27:28 +01:00
paging_tmpl.h kvm: mmu: track read permission explicitly for shadow EPT page tables 2016-07-14 09:03:50 +02:00
pmu_amd.c KVM: x86/vPMU: Fix unnecessary signed extension for AMD PERFCTRn 2015-08-11 15:19:41 +02:00
pmu_intel.c KVM: x86: Fix typos 2016-06-14 11:16:28 +02:00
pmu.c KVM: x86: consolidate different ways to test for in-kernel LAPIC 2016-02-09 16:57:45 +01:00
pmu.h KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch 2015-06-23 14:12:14 +02:00
svm.c - ARM: GICv3 ITS emulation and various fixes. Removal of the old 2016-08-02 16:11:27 -04:00
trace.h KVM: x86: support using the vmx preemption timer for tsc deadline timer 2016-06-16 10:07:48 +02:00
tss.h
vmx.c kvm: nVMX: fix nested tsc scaling 2016-08-18 12:19:09 +02:00
x86.c KVM: lapic: adjust preemption timer correctly when goes TSC backward 2016-09-05 16:14:39 +02:00
x86.h KVM: x86: move nsec_to_cycles from x86.c to x86.h 2016-06-27 15:30:38 +02:00