From: Christoffer Dall <cdall@xxxxxxxxxx>
This series illustrates an alternative approach to Eric Auger's direct EOI
setup patches [1] in terms of the KVM VGIC support.
The idea is to maintain existing semantics for the VGIC for mapped
level-triggered IRQs and also support the timer using mapped IRQs with
the same VGIC support as VFIO interrupts.
Based on v4.13
Changes since v3:
- Added a number of patches and moved patches around a bit.
- Check for uaccesses in the mmio handler functions
- Fixed bugs in the mmio handler functions
Changes since v2:
- Removed patch 5 from v2 and integrating the changes in what's now
patch 5 to make it easier to reuse code when adding VFIO integration.
- Changed the virtual distributor MMIO handling to use the
pending_latch and more closely match the semantics of SPENDR and
CPENDR for both level and edge mapped interrupts.
Changes since v1:
- Added necessary changes to the timer (Patch 1)
- Added handling of guest MMIO accesses to the virtual distributor
(Patch 4)
- Addressed Marc's comments from the initial RFC (mostly renames)
Thanks,
-Christoffer
Christoffer Dall (6):
KVM: arm/arm64: Remove redundant preemptible checks
KVM: arm/arm64: Factor out functionality to get vgic mmio
requester_vcpu
KVM: arm/arm64: Don't cache the timer IRQ level
KVM: arm/arm64: vgic: Support level-triggered mapped interrupts
KVM: arm/arm64: Provide a vgic interrupt line level sample function
KVM: arm/arm64: Support VGIC dist pend/active changes for mapped IRQs
Eric Auger (1):
KVM: arm/arm64: vgic: restructure kvm_vgic_(un)map_phys_irq
include/kvm/arm_arch_timer.h | 2 +
include/kvm/arm_vgic.h | 19 +++++--
virt/kvm/arm/arch_timer.c | 52 ++++++++----------
virt/kvm/arm/arm.c | 2 -
virt/kvm/arm/vgic/vgic-mmio.c | 122 +++++++++++++++++++++++++++++++++---------
virt/kvm/arm/vgic/vgic-v2.c | 29 ++++++++++
virt/kvm/arm/vgic/vgic-v3.c | 29 ++++++++++
virt/kvm/arm/vgic/vgic.c | 96 +++++++++++++++++++++++++++------
virt/kvm/arm/vgic/vgic.h | 8 +++
9 files changed, 286 insertions(+), 73 deletions(-)
--
2.7.4
