linux/virt/kvm/arm
Andrew Jones 325f9c649c KVM: arm/arm64: use vcpu requests for irq injection
Don't use request-less VCPU kicks when injecting IRQs, as a VCPU
kick meant to trigger the interrupt injection could be sent while
the VCPU is outside guest mode, which means no IPI is sent, and
after it has called kvm_vgic_flush_hwstate(), meaning it won't see
the updated GIC state until its next exit some time later for some
other reason.  The receiving VCPU only needs to check this request
in VCPU RUN to handle it.  By checking it, if it's pending, a
memory barrier will be issued that ensures all state is visible.
See "Ensuring Requests Are Seen" of
Documentation/virtual/kvm/vcpu-requests.rst

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 16:53:56 +02:00
..
hyp KVM: arm/arm64: vgic-v3: Fix off-by-one LR access 2017-04-19 17:28:38 +02:00
vgic KVM: arm/arm64: use vcpu requests for irq injection 2017-06-04 16:53:56 +02:00
aarch32.c arm64: KVM: Make kvm_skip_instr32 available to HYP 2016-09-08 12:53:00 +02:00
arch_timer.c KVM: arm/arm64: Report PMU overflow interrupts to userspace irqchip 2017-04-09 07:49:39 -07:00
arm.c KVM: arm/arm64: use vcpu requests for irq injection 2017-06-04 16:53:56 +02:00
mmio.c KVM: arm/arm64: Move shared files to virt/kvm/arm 2017-05-04 13:57:26 +02:00
mmu.c Second round of KVM/ARM Changes for v4.12. 2017-05-09 12:51:49 +02:00
perf.c KVM: arm/arm64: Move shared files to virt/kvm/arm 2017-05-04 13:57:26 +02:00
pmu.c KVM: arm/arm64: Report PMU overflow interrupts to userspace irqchip 2017-04-09 07:49:39 -07:00
psci.c KVM: arm/arm64: change exit request to sleep request 2017-06-04 16:53:55 +02:00
trace.h KVM: arm/arm64: Move shared files to virt/kvm/arm 2017-05-04 13:57:26 +02:00