linux/virt/kvm
Christoffer Dall 90a5355ee7 KVM: arm-vgic: Add GICD_SPENDSGIR and GICD_CPENDSGIR handlers
Handle MMIO accesses to the two registers which should support both the
case where the VMs want to read/write either of these registers and the
case where user space reads/writes these registers to do save/restore of
the VGIC state.

Note that the added complexity compared to simple set/clear enable
registers stems from the bookkeping of source cpu ids.  It may be
possible to change the underlying data structure to simplify the
complexity, but since this is not in the critical path at all, this will
do.

Also note that reading this register from a live guest will not be
accurate compared to on hardware, because some state may be living on
the CPU LRs and the only way to give a consistent read would be to force
stop all the VCPUs and request them to unqueu the LR state onto the
distributor.  Until we have an actual user of live reading this
register, we can live with the difference.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
2013-12-21 10:02:04 -08:00
..
arm KVM: arm-vgic: Add GICD_SPENDSGIR and GICD_CPENDSGIR handlers 2013-12-21 10:02:04 -08:00
assigned-dev.c KVM: Move irq routing to generic code 2013-04-26 20:27:17 +02:00
async_pf.c KVM: Drop FOLL_GET in GUP when doing async page fault 2013-10-15 13:43:37 +03:00
async_pf.h KVM: Halt vcpu if page it tries to access is swapped out 2011-01-12 11:21:39 +02:00
coalesced_mmio.c KVM: make checks stricter in coalesced_mmio_in_range() 2011-12-27 11:17:07 +02:00
coalesced_mmio.h KVM: Make coalesced mmio use a device per zone 2011-09-25 19:17:57 +03:00
eventfd.c kvm eventfd: switch to fdget 2013-09-03 23:04:45 -04:00
ioapic.c KVM: Set TMR when programming ioapic entry 2013-04-16 16:32:40 -03:00
ioapic.h KVM: Set TMR when programming ioapic entry 2013-04-16 16:32:40 -03:00
iodev.h KVM: remove in_range from io devices 2009-09-10 08:33:05 +03:00
iommu.c KVM: IOMMU: hva align mapping page size 2013-11-05 09:55:36 +02:00
irq_comm.c KVM: Fix RTC interrupt coalescing tracking 2013-06-27 14:20:53 +03:00
irqchip.c KVM: Move irq routing setup to irqchip.c 2013-04-26 20:27:18 +02:00
Kconfig kvm: Add VFIO device 2013-10-30 19:02:03 +01:00
kvm_main.c KVM: arm-vgic: Support KVM_CREATE_DEVICE for VGIC 2013-12-21 10:01:16 -08:00
vfio.c kvm: Create non-coherent DMA registeration 2013-10-30 19:02:23 +01:00