Hi, This series adds 32bit support to the GICv3 driver. Only SGIs, PPIs and SPIs support is present, no ITS. Currently, the main targets for those patches are 32bit guests running under KVM. They can now use affinity routing and theoretically have a lot more than 8 CPUs. During my tests, I was able to use 16 virtual CPUs on an AEM model. We don't support 32bit hosts with GICv3 at the moment. I added a patch to allow building a host when CONFIG_ARM_GIC_V3 enabled, as pointed out by Vladimir in the last series. When attempting to run such host with a device-tree that declares GICv3, KVM will refuse to start, and throw a -ENODEV error. Some time has passed since last series, but I am now available full-time to act on reviews and comments. Changes since v2 [2]: - rebased on 4.3-rc3, - add a sixth patch to handle build with CONFIG_KVM + CONFIG_ARM_GIC_V3. Changes since v1 [1]: - fix the mistakes pointed out on the list, - add a patch to select ARM_GIC_V3 under ARCH_VIRT. Cheers, Jean [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-December/310124.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-March/327034.html Jean-Philippe Brucker (6): arm64: GICv3: refactor the AArch64 specific parts arm64: GICv3: change unsigned types for AArch32 compatibility arm64: GICv3: Specialize readq and writeq accesses ARM: add 32bit support to GICv3 ARM: virt: select ARM_GIC_V3 arm/arm64: KVM: only allow 64bit hosts to build VGICv3 arch/arm/Kconfig | 1 + arch/arm/include/asm/arch_gicv3.h | 188 +++++++++++++++++++++++++++++++++++ arch/arm64/include/asm/arch_gicv3.h | 148 +++++++++++++++++++++++++++ arch/arm64/kvm/Kconfig | 4 + drivers/irqchip/irq-gic-v3.c | 69 ++++--------- include/kvm/arm_vgic.h | 4 +- include/linux/irqchip/arm-gic-v3.h | 87 ++-------------- virt/kvm/arm/vgic.c | 4 +- 8 files changed, 373 insertions(+), 132 deletions(-) create mode 100644 arch/arm/include/asm/arch_gicv3.h create mode 100644 arch/arm64/include/asm/arch_gicv3.h -- 1.7.9.5 _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
