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[Qemu-devel] [RFC PATCH v4 0/8] Support arm-gic-kvm save/restore
From: |
Christoffer Dall |
Subject: |
[Qemu-devel] [RFC PATCH v4 0/8] Support arm-gic-kvm save/restore |
Date: |
Fri, 20 Dec 2013 22:09:31 -0800 |
Implement support to save/restore the ARM KVM VGIC state from the
kernel. The basic appraoch is to transfer state from the in-kernel VGIC
to the emulated arm-gic state representation and let the standard QEMU
vmstate save/restore handle saving the arm-gic state. Restore works by
reversing the process.
The first patches adds missing features and fixes issues with the
arm-gic implementation in qemu in preparation for the actual
save/restore logic.
The patches depend on the device control patch series sent out earlier,
which can also be found here:
git://git.linaro.org/people/cdall/qemu-arm.git migration/device-ctrl-v3
The whole patch series based on top of the above can be found here:
git://git.linaro.org/people/cdall/qemu-arm.git migration/vgic-v4
Changes [v3 -> v4]:
- Changes are described in the individual patches
- Some re-ordering of patches: the rename of trigger to edge_trigger is
now the first patch because it makes subsequent patches easier to
read
- All the changes related to handling the pending state are now
combined in patch 3.
- Generally tried to address review comments from v3
Changes [v2 -> v3]:
- Changes are described in the individual patches
- New patch that renames GIC_..._TRIGGER to GIC_..._EDGE_TRIGGER
- New patch to keep track of software writing to SPENDR and CPENDR
registers.
- New patch that fixes not clearing the pending state for an asserted
level-triggered interrupt on ACK
- Separate patch for the GICC_APRn state
Changes [v1 -> v2]:
- Changes are described in the individual patches
- VMState additions has been split into a separate patch
Christoffer Dall (8):
arm_gic: Rename GIC_X_TRIGGER to GIC_X_EDGE_TRIGGER
hw: arm_gic: Introduce gic_set_priority function
arm_gic: Fix GIC pending behavior
hw: arm_gic: Keep track of SGI sources
arm_gic: Support setting/getting binary point reg
vmstate: Add uint32 2D-array support
arm_gic: Add GICC_APRn state to the GICState
hw: arm_gic_kvm: Add KVM VGIC save/restore logic
hw/intc/arm_gic.c | 186 +++++++++++++----
hw/intc/arm_gic_common.c | 17 +-
hw/intc/arm_gic_kvm.c | 424 ++++++++++++++++++++++++++++++++++++++-
hw/intc/gic_internal.h | 10 +-
include/hw/intc/arm_gic_common.h | 29 ++-
include/migration/vmstate.h | 6 +
6 files changed, 617 insertions(+), 55 deletions(-)
--
1.8.5
- [Qemu-devel] [RFC PATCH v4 0/8] Support arm-gic-kvm save/restore,
Christoffer Dall <=
- [Qemu-devel] [RFC PATCH v4 1/8] arm_gic: Rename GIC_X_TRIGGER to GIC_X_EDGE_TRIGGER, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 2/8] hw: arm_gic: Introduce gic_set_priority function, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 3/8] arm_gic: Fix GIC pending behavior, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 4/8] hw: arm_gic: Keep track of SGI sources, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 5/8] arm_gic: Support setting/getting binary point reg, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 6/8] vmstate: Add uint32 2D-array support, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 7/8] arm_gic: Add GICC_APRn state to the GICState, Christoffer Dall, 2013/12/21
- [Qemu-devel] [RFC PATCH v4 8/8] hw: arm_gic_kvm: Add KVM VGIC save/restore logic, Christoffer Dall, 2013/12/21