This patchset adds necessary userspace API in order to support vGICv3 live
migration. GICv3 registers are accessed using device attribute ioctls,
similar to GICv2.
V2 => V3:
- KVM_DEV_ARM_VGIC_CPUID_MASK enlarged to 20 bits, allowing more than 256
CPUs.
- Bug fix: Correctly set mmio->private, necessary for redistributor access.
- Added accessors for ICC_AP0R and ICC_AP1R registers
- Rebased on new linux-next
v1 => v2:
- Do not use generic register get/set API for CPU interface, use only
device attributes.
- Introduce size specifier for distributor and redistributor register
accesses, do not assume size any more.
- Lots of refactor and reusable code extraction.
- Added forgotten documentation
Pavel Fedin (5):
KVM: arm/arm64: Refactor vGIC attributes handling code
KVM: arm64: Implement vGICv3 distributor and redistributor access from
userspace
KVM: arm64: Refactor system register handlers
KVM: arm64: Introduce find_reg_by_id()
KVM: arm64: Implement vGICv3 CPU interface access
Documentation/virtual/kvm/devices/arm-vgic.txt | 73 +++++-
arch/arm64/include/uapi/asm/kvm.h | 11 +-
arch/arm64/kvm/sys_regs.c | 83 +++---
arch/arm64/kvm/sys_regs.h | 8 +-
arch/arm64/kvm/sys_regs_generic_v8.c | 2 +-
include/linux/irqchip/arm-gic-v3.h | 18 +-
virt/kvm/arm/vgic-v2-emul.c | 126 ++-------
virt/kvm/arm/vgic-v3-emul.c | 339 ++++++++++++++++++++++++-
virt/kvm/arm/vgic.c | 78 ++++++
virt/kvm/arm/vgic.h | 4 +
10 files changed, 577 insertions(+), 165 deletions(-)
--
2.4.4
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
