This patch series is an early RFC for the QEMU patches adding support for KVM on ARM Cortex-A15 hardware. It's intended for use with the kernel tree at git://github.com/virtualopensystems/linux-kvm-arm.git kvm-a15-v10-stage There are two aims here: * early review for qemu-devel folk * resend a complete set of patches to kvmarm, since I've done a number of incremental changes and tweaks since Christoffer's original QEMU code These patches depend on various cleanups to KVM and configure which I've posted in the last couple of weeks: configure: Don't implicitly hardcode list of KVM architectures update-linux-headers.sh: Pull in asm-generic/kvm_para.h update-linux-headers.sh: Don't hard code list of architectures kvm-all.c: Move init of irqchip_inject_ioctl out of kvm_irqchip_create() kvm: Add documentation comment for kvm_irqchip_in_kernel() kvm: Decouple 'GSI routing' from 'kernel irqchip' kvm: Decouple 'MSI routing via irqfds' from 'kernel irqchip' kvm: Decouple 'irqfds usable' from 'kernel irqchip' kvm: Move kvm_allows_irq0_override() to target-i386, fix return type kvm: Rename kvm_irqchip_set_irq() to kvm_set_irq() kvm: Decouple 'async interrupt delivery' from 'kernel irqchip' A git branch consisting of qemu master + these preliminary fixes + the ARM patches is available here: git://git.linaro.org/people/pmaydell/qemu-arm.git kvm-arm with pointy-clicky version here: http://git.linaro.org/gitweb?p=people/pmaydell/qemu-arm.git;a=shortlog;h=refs/heads/kvm-arm There are still a number of TODOs scattered through the code; a quick summary: * a15mpcore should enforce vgic use (currently not done pending the VGIC patches landing in Christoffer's kernel tree) * the makefile change for the hw/kvm/arm_gic object is not right (see discussions on qemu-devel in the past about how to handle "only if architecture foo and KVM" object files) * kvm_arch_put/get_registers should drive register set/get from the cp15 hashtable * we should use an accessor function for c2_mask/base/control * breakpoint support is unimplemented * vgic register save/load from kernel is unimplemented (no kernel ABI) * fpu save/load unimplemented (no kernel ABI yet) * tell kernel the A15 peripheral base address (no kernel ABI) * the kernel ABI for sending per-CPU interrupts for VGIC vs non-VGIC is inconsistent (the former uses a vcpu ioctl, the latter encodes cpu number in the irq number), and we should standardise on one approach or the other Christoffer Dall (1): ARM: KVM: Add support for KVM on ARM architecture Peter Maydell (4): linux-headers: Add ARM KVM headers (not for upstream) hw/arm_gic: Add presave/postload hooks hw/kvm/arm_gic: Implement support for KVM in-kernel ARM GIC configure: Enable KVM on ARM configure | 2 +- hw/a15mpcore.c | 11 +- hw/arm/Makefile.objs | 1 + hw/arm_gic_common.c | 10 ++ hw/arm_gic_internal.h | 2 + hw/arm_pic.c | 28 ++++ hw/kvm/arm_gic.c | 153 +++++++++++++++++++ linux-headers/asm-arm/kvm.h | 119 +++++++++++++++ linux-headers/asm-arm/kvm_para.h | 1 + linux-headers/asm-generic/kvm_para.h | 5 + linux-headers/linux/kvm.h | 3 + target-arm/Makefile.objs | 1 + target-arm/cpu.h | 1 + target-arm/helper.c | 2 +- target-arm/kvm.c | 274 ++++++++++++++++++++++++++++++++++ 15 files changed, 610 insertions(+), 3 deletions(-) create mode 100644 hw/kvm/arm_gic.c create mode 100644 linux-headers/asm-arm/kvm.h create mode 100644 linux-headers/asm-arm/kvm_para.h create mode 100644 linux-headers/asm-generic/kvm_para.h create mode 100644 target-arm/kvm.c -- 1.7.9.5 -- 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
