Whoops, I forgot to mark these as v4... Sorry about that! -Christoffer On Thu, Dec 12, 2013 at 11:55:39AM -0800, Christoffer Dall wrote: > Implement save/restore of the VGIC state using the newer KVM Device > Control API. This requries some number of changes to existing code in > addition to actually supporting save/restore of the necessary state. > > The first patches (01-03) support creating the VGIC using the Device > Control API. This change is necessary because there are no other > suitable KVM APIs that we can leverage to access the VGIC state from > user space and the device control API was crafted exactly for this > purpose. > > Subsequent patches add the missing infrastructure and user space API > pieces necessary to actually save and restore the VGIC state. The GIC > v2.0 architecture specification already specifies registers that can be > used to save and restore the complete VGIC state for suspend/resume > purposes on real hardware, and we can reuse this interface for the > VGIC. The API is therefore based on the memory-mapped register accesses > defined in the specs. See the individual patches for details. > > The patches are based on kvm-arm-next with the arch timers save/restore > patches applied: > git://git.linaro.org/people/cdall/linux-kvm-arm.git timer-migrate-v4 > > This patch series based on the above can be cloned from: > git://git.linaro.org/people/cdall/linux-kvm-arm.git vgic-migrate-v4 > > User space patches for QEMU have also been posted on the list, but an > updated version is underway. Tested on Versatile Express TC2. > > Changelogs in the individual patches. > > Christoffer Dall (10): > ARM: KVM: Allow creating the VGIC after VCPUs > KVM: arm-vgic: Support KVM_CREATE_DEVICE for VGIC > KVM: arm-vgic: Set base addr through device API > irqchip: arm-gic: Define additional MMIO offsets and masks > KVM: arm-vgic: Make vgic mmio functions more generic > arm/arm64: kvm: Set vcpu->cpu to -1 on vcpu_put > KVM: arm-vgic: Add vgic reg access from dev attr > KVM: arm-vgic: Support unqueueing of LRs to the dist > KVM: arm-vgic: Add GICD_SPENDSGIR and GICD_CPENDSGIR handlers > KVM: arm-vgic: Support CPU interface reg access > > Documentation/virtual/kvm/api.txt | 7 +- > Documentation/virtual/kvm/devices/arm-vgic.txt | 73 ++++ > arch/arm/include/uapi/asm/kvm.h | 8 + > arch/arm/kvm/arm.c | 17 +- > include/kvm/arm_vgic.h | 2 +- > include/linux/irqchip/arm-gic.h | 12 + > include/linux/kvm_host.h | 1 + > include/uapi/linux/kvm.h | 1 + > virt/kvm/arm/vgic.c | 581 +++++++++++++++++++++++-- > virt/kvm/kvm_main.c | 6 +- > 10 files changed, 670 insertions(+), 38 deletions(-) > create mode 100644 Documentation/virtual/kvm/devices/arm-vgic.txt > > -- > 1.8.4.3 > -- Christoffer -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
