linux/arch/arm/kvm
Andrew Jones 6a6d73be12 KVM: arm/arm64: properly use vcpu requests
arm/arm64 already has one VCPU request used when setting pause,
but it doesn't properly check requests in VCPU RUN. Check it
and also make sure we set vcpu->mode at the appropriate time
(before the check) and with the appropriate barriers. See
Documentation/virtual/kvm/vcpu-requests.rst. Also make sure we
don't leave any vcpu requests we don't intend to handle later
set in the request bitmap. If we don't clear them, then
kvm_request_pending() may return true when it shouldn't.

Using VCPU requests properly fixes a small race where pause
could get set just as a VCPU was entering guest mode.

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Christoffer Dall <cdall@linaro.org>
2017-06-04 16:53:47 +02:00
..
hyp KVM: arm: Restore banked registers and physical timer access on hyp_panic() 2017-05-16 09:54:24 +02:00
coproc.c arm: KVM: Treat CP15 accessors returning false as successful 2017-04-09 07:49:17 -07:00
coproc.h arm: KVM: Make unexpected register accesses inject an undef 2017-04-09 07:49:16 -07:00
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
emulate.c arm: KVM: Add Virtual Abort injection helper 2016-09-08 12:53:00 +02:00
guest.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
handle_exit.c KVM: arm/arm64: properly use vcpu requests 2017-06-04 16:53:47 +02:00
init.S ARM: hyp-stub: Zero r0 on successful stub handling 2017-04-09 07:49:36 -07:00
interrupts.S ARM: hyp-stub/KVM: Kill __hyp_get_vectors 2017-04-09 07:49:34 -07:00
irq.h KVM: arm/arm64: Enable irqchip routing 2016-07-22 18:52:01 +01:00
Kconfig ARM: KVM: Support vGICv3 ITS 2016-11-14 10:32:54 +00:00
Makefile KVM: arm/arm64: Move shared files to virt/kvm/arm 2017-05-04 13:57:26 +02:00
reset.c KVM: arm/arm64: Initialize the emulated EL1 physical timer 2017-02-08 15:13:34 +00:00
trace.h KVM: arm/arm64: Move shared files to virt/kvm/arm 2017-05-04 13:57:26 +02:00
vgic-v3-coproc.c KVM: arm/arm64: vgic: Implement VGICv3 CPU interface access 2017-01-30 13:47:25 +00:00