Paolo Bonzini 1b385cbdd7 kvm, vmx: Really fix lazy FPU on nested guest ...

Commit e504c9098ed6 (kvm, vmx: Fix lazy FPU on nested guest, 2013-11-13)
highlighted a real problem, but the fix was subtly wrong.

nested_read_cr0 is the CR0 as read by L2, but here we want to look at
the CR0 value reflecting L1's setup.  In other words, L2 might think
that TS=0 (so nested_read_cr0 has the bit clear); but if L1 is actually
running it with TS=1, we should inject the fault into L1.

The effective value of CR0 in L2 is contained in vmcs12->guest_cr0, use
it.

Fixes: e504c9098ed6acd9e1079c5e10e4910724ad429f
Reported-by: Kashyap Chamarty <kchamart@redhat.com>
Reported-by: Stefan Bader <stefan.bader@canonical.com>
Tested-by: Kashyap Chamarty <kchamart@redhat.com>
Tested-by: Anthoine Bourgeois <bourgeois@bertin.fr>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2014-02-27 22:54:11 +01:00

..

cpuid.c

kvm, cpuid: Fix sparse warning

2013-11-07 12:27:46 +02:00

cpuid.h

KVM: x86: Validate guest writes to MSR_IA32_APICBASE

2014-01-27 14:39:44 +01:00

emulate.c

KVM: emulator: cleanup decode_register_operand() a bit

2013-11-05 09:11:30 +02:00

i8254.c

KVM: x86: limit PIT timer frequency

2014-01-15 12:43:54 +01:00

i8254.h

KVM: fold kvm_pit_timer into kvm_kpit_state

2012-08-01 00:21:07 -03:00

i8259.c

KVM: inject ExtINT interrupt before APIC interrupts

2012-12-13 23:05:21 -02:00

irq.c

x86, apicv: add virtual interrupt delivery support

2013-01-29 10:48:19 +02:00

irq.h

KVM: switch to symbolic name for irq_states size

2012-07-20 16:12:16 -03:00

Kconfig

kvm: make KVM_MMU_AUDIT help text more readable

2014-01-20 12:59:26 +01:00

kvm_cache_regs.h

KVM: MMU: Do not unconditionally read PDPTE from guest memory

2011-09-25 19:18:01 +03:00

lapic.c

First round of KVM updates for 3.14; PPC parts will come next week.

2014-01-22 21:40:43 -08:00

lapic.h

KVM: x86: Validate guest writes to MSR_IA32_APICBASE

2014-01-27 14:39:44 +01:00

Makefile

kvm: Add VFIO device

2013-10-30 19:02:03 +01:00

mmu_audit.c

kvm: mmu: delay mmu audit activation

2013-11-20 11:12:56 +02:00

mmu.c

KVM: MMU: drop read-only large sptes when creating lower level sptes

2014-02-26 17:23:32 +01:00

mmu.h

KVM: mmu: change useless int return types to void

2013-10-03 15:44:02 +03:00

mmutrace.h

KVM: MMU: add tracepoint for check_mmio_spte

2013-06-27 14:20:37 +03:00

paging_tmpl.h

KVM: x86: handle invalid root_hpa everywhere

2014-01-15 12:16:16 +01:00

pmu.c

perf, kvm: Support the in_tx/in_tx_cp modifiers in KVM arch perfmon emulation v5

2013-07-19 18:24:45 +02:00

svm.c

KVM: SVM: Fix reading of DR6

2014-01-17 10:22:10 +01:00

trace.h

kvm: Add a tracepoint write_tsc_offset

2013-06-27 14:20:51 +03:00

tss.h

KVM: x86: hardware task switching support

2008-04-27 12:00:39 +03:00

vmx.c

kvm, vmx: Really fix lazy FPU on nested guest

2014-02-27 22:54:11 +01:00

x86.c

kvm: x86: fix emulator buffer overflow (CVE-2014-0049)

2014-02-27 19:35:22 +01:00

x86.h

KVM: x86: limit PIT timer frequency

2014-01-15 12:43:54 +01:00