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d4b9e0790a
linux/arch/arm/kvm
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Marc Zyngier d4b9e0790a arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables 
The ARM architecture mandates that when changing a page table entry
from a valid entry to another valid entry, an invalid entry is first
written, TLB invalidated, and only then the new entry being written.

The current code doesn't respect this, directly writing the new
entry and only then invalidating TLBs. Let's fix it up.

Cc: <stable@vger.kernel.org>
Reported-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2016-04-29 13:46:14 +02:00
..
hyp ARM: KVM: Use common version of timer-sr.c 2016-02-29 18:34:19 +00:00
arm.c kvm-arm: Cleanup stage2 pgd handling 2016-04-21 14:58:23 +02:00
coproc_a7.c arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
coproc_a15.c arm/arm64: KVM: Use set/way op trapping to track the state of the caches 2015-01-29 23:24:56 +01:00
coproc.c ARM: KVM: Switch the CP reg search to be a binary search 2016-02-29 18:34:22 +00:00
coproc.h ARM: KVM: Rename struct coproc_reg::is_64 to is_64bit 2016-02-29 18:34:22 +00:00
emulate.c ARM: KVM: Move GP registers into the CPU context structure 2016-02-29 18:34:12 +00:00
guest.c One of the largest releases for KVM... Hardly any generic improvement, 2016-03-16 09:55:35 -07:00
handle_exit.c ARM: KVM: Remove handling of ARM_EXCEPTION_DATA/PREF_ABORT 2016-02-29 18:34:15 +00:00
init.S ARM: KVM: Switch to C-based stage2 init 2016-02-29 18:34:14 +00:00
interrupts.S ARM: KVM: Remove the old world switch 2016-02-29 18:34:14 +00:00
Kconfig arm/arm64: KVM : Enable vhost device selection under KVM config menu 2015-10-22 23:01:45 +02:00
Makefile ARM: KVM: Add TLB invalidation code 2016-02-29 18:34:13 +00:00
mmio.c arm/arm64: KVM: Feed initialized memory to MMIO accesses 2016-02-24 11:53:09 +00:00
mmu.c arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables 2016-04-29 13:46:14 +02:00
perf.c
psci.c KVM: Use simple waitqueue for vcpu->wq 2016-02-25 11:27:16 +01:00
reset.c ARM: KVM: Move GP registers into the CPU context structure 2016-02-29 18:34:12 +00:00
trace.h arm/arm64: KVM: Improve kvm_exit tracepoint 2015-10-22 23:01:47 +02:00