OpenCloudOS-Kernel/virt/kvm/arm
Andre Przywara a5e1e6ca94 KVM: arm/arm64: VGIC: Fix command handling while ITS being disabled
The ITS spec says that ITS commands are only processed when the ITS
is enabled (section 8.19.4, Enabled, bit[0]). Our emulation was not taking
this into account.
Fix this by checking the enabled state before handling CWRITER writes.

On the other hand that means that CWRITER could advance while the ITS
is disabled, and enabling it would need those commands to be processed.
Fix this case as well by refactoring actual command processing and
calling this from both the GITS_CWRITER and GITS_CTLR handlers.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2017-03-07 15:44:08 +00:00
..
hyp KVM: arm/arm64: Move cntvoff to each timer context 2017-02-08 15:13:33 +00:00
vgic KVM: arm/arm64: VGIC: Fix command handling while ITS being disabled 2017-03-07 15:44:08 +00:00
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: Emulate the EL1 phys timer registers 2017-02-08 15:13:37 +00:00
pmu.c KVM: arm64: Fix the issues when guest PMCCFILTR is configured 2016-11-18 09:06:58 +00:00
trace.h arm/arm64: KVM: Add tracepoints for vgic and timer 2015-10-22 23:01:48 +02:00