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linux-next/arch/arm/kvm
Christoffer Dall 05e0127f9e arm/arm64: KVM: Complete WFI/WFE instructions
The architecture specifies that when the processor wakes up from a WFE
or WFI instruction, the instruction is considered complete, however we
currrently return to EL1 (or EL0) at the WFI/WFE instruction itself.

While most guests may not be affected by this because their local
exception handler performs an exception returning setting the event bit
or with an interrupt pending, some guests like UEFI will get wedged due
this little mishap.

Simply skip the instruction when we have completed the emulation.

Cc: <stable@vger.kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2014-08-29 11:53:53 +02:00
..
arm.c Patch queue for ppc - 2014-08-01 2014-08-05 09:58:11 +02:00
coproc_a7.c ARM: KVM: trap VM system registers until MMU and caches are ON 2014-03-03 01:15:24 +00:00
coproc_a15.c ARM: KVM: trap VM system registers until MMU and caches are ON 2014-03-03 01:15:24 +00:00
coproc.c ARM: KVM: one_reg coproc set and get BE fixes 2014-07-11 04:57:40 -07:00
coproc.h ARM: KVM: trap VM system registers until MMU and caches are ON 2014-03-03 01:15:24 +00:00
emulate.c KVM: ARM: Fix typo in comments of inject_abt() 2013-10-02 17:29:19 +01:00
guest.c Here are the PPC and ARM changes for KVM, which I separated because 2014-08-07 11:35:30 -07:00
handle_exit.c arm/arm64: KVM: Complete WFI/WFE instructions 2014-08-29 11:53:53 +02:00
init.S ARM/ARM64: KVM: Nuke Hyp-mode tlbs before enabling MMU 2014-08-29 11:53:26 +02:00
interrupts_head.S ARM: KVM: handle 64bit values passed to mrcc or from mcrr instructions in BE case 2014-07-11 04:57:38 -07:00
interrupts.S ARM: KVM: __kvm_vcpu_run function return result fix in BE case 2014-07-11 04:57:39 -07:00
Kconfig ARM: KVM: enable KVM in Kconfig on big-endian systems 2014-07-11 04:57:41 -07:00
Makefile KVM: ARM: vgic: split GICv2 backend from the main vgic code 2014-07-11 04:57:34 -07:00
mmio.c arm/arm64: KVM: MMIO support for BE guest 2013-11-07 19:09:04 +00:00
mmu.c ARM: KVM: user_mem_abort: support stage 2 MMIO page mapping 2014-07-11 04:46:53 -07:00
perf.c ARM: KVM: add support for minimal host vs guest profiling 2013-04-28 21:44:01 -07:00
psci.c ARM/ARM64: KVM: Emulate PSCI v0.2 CPU_SUSPEND 2014-04-30 04:18:58 -07:00
reset.c Updates for KVM/ARM, take 3 supporting more than 4 CPUs. 2013-11-11 12:02:27 +01:00
trace.h ARM: KVM: Simplify tracepoint text 2013-08-30 15:47:53 -07:00