Roman Kagan 314b46558c kvm: x86: vmx: fix vpid leak ... commit 63aff65573d73eb8dda4732ad4ef222dd35e4862 upstream. VPID for the nested vcpu is allocated at vmx_create_vcpu whenever nested vmx is turned on with the module parameter. However, it's only freed if the L1 guest has executed VMXON which is not a given. As a result, on a system with nested==on every creation+deletion of an L1 vcpu without running an L2 guest results in leaking one vpid. Since the total number of vpids is limited to 64k, they can eventually get exhausted, preventing L2 from starting. Delay allocation of the L2 vpid until VMXON emulation, thus matching its freeing. Fixes: 5c614b3583 Cc: stable@vger.kernel.org Signed-off-by: Roman Kagan <rkagan@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-08-06 16:24:42 +02:00
..
assigned-dev.c	KVM: x86: move kvm_set_irq_inatomic to legacy device assignment	2015-11-04 16:24:36 +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	KVM: x86: disable MPX if host did not enable MPX XSAVE features	2017-07-21 07:44:59 +02:00
cpuid.h	kvm: x86: Guest BNDCFGS requires guest MPX support	2017-07-21 07:44:59 +02:00
emulate.c	kvm: x86: use correct privilege level for sgdt/sidt/fxsave/fxrstor access	2018-06-16 09:54:27 +02:00
hyperv.c	kvm/x86: Hyper-V HV_X64_MSR_VP_RUNTIME support	2015-10-01 15:06:33 +02:00
hyperv.h	kvm/x86: added hyper-v crash msrs into kvm hyperv context	2015-07-23 08:27:06 +02:00
i8254.c	KVM: i8254: change PIT discard tick policy	2016-04-12 09:08:33 -07:00
i8254.h	KVM: move iodev.h from virt/kvm/ to include/kvm	2015-03-26 21:43:12 +00:00
i8259.c	KVM: x86: clean/fix memory barriers in irqchip_in_kernel	2015-07-30 16:02:56 +02:00
ioapic.c	KVM: x86: ioapic: Preserve read-only values in the redirection table	2018-02-03 17:04:26 +01:00
ioapic.h	KVM: x86: Add EOI exit bitmap inference	2015-10-01 15:06:28 +02:00
iommu.c	KVM: count number of assigned devices	2015-07-10 13:25:26 +02:00
irq.c	KVM: x86: Add support for local interrupt requests from userspace	2015-10-01 15:06:29 +02:00
irq.h	KVM: x86: Add support for local interrupt requests from userspace	2015-10-01 15:06:29 +02:00
irq_comm.c	KVM: x86: check for pic and ioapic presence before use	2016-12-02 09:09:00 +01:00
Kconfig	KVM: add X86_LOCAL_APIC dependency	2018-02-25 11:03:49 +01:00
kvm_cache_regs.h	KVM: x86: API changes for SMM support	2015-06-04 16:01:11 +02:00
lapic.c	KVM: lapic: stop advertising DIRECTED_EOI when in-kernel IOAPIC is in use	2018-05-30 07:49:11 +02:00
lapic.h	KVM: x86: flush pending lapic jump label updates on module unload	2017-01-19 20:17:19 +01:00
Makefile	kvm/x86: move Hyper-V MSR's/hypercall code into hyperv.c file	2015-07-23 08:27:06 +02:00
mmu.c	KVM/x86: Reduce retpoline performance impact in slot_handle_level_range(), by always inlining iterator helper methods	2018-02-22 15:44:59 +01:00
mmu.h	KVM: async_pf: avoid async pf injection when in guest mode	2017-06-14 13:16:21 +02:00
mmu_audit.c	Minor merge needed, due to function move.	2015-07-01 10:49:25 -07:00
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	2016-08-20 18:09:17 +02:00
paging_tmpl.h	KVM: x86: MMU: fix ubsan index-out-of-range warning	2016-03-03 15:07:29 -08:00
pmu.c	KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch	2015-06-23 14:12:14 +02:00
pmu.h	KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch	2015-06-23 14:12:14 +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/vPMU: fix undefined shift in intel_pmu_refresh()	2017-07-05 14:37:23 +02:00
svm.c	x86/speculation: Create spec-ctrl.h to avoid include hell	2018-07-25 10:18:25 +02:00
trace.h	KVM: x86: correctly print #AC in traces	2016-01-31 11:28:54 -08:00
tss.h
vmx.c	kvm: x86: vmx: fix vpid leak	2018-08-06 16:24:42 +02:00
x86.c	kvm: x86: use correct privilege level for sgdt/sidt/fxsave/fxrstor access	2018-06-16 09:54:27 +02:00
x86.h	KVM: x86: pass kvm_vcpu to kvm_read_guest_virt and kvm_write_guest_virt_system	2018-06-16 09:54:26 +02:00