11ad93f681
Recent (host) kernels support emulating the PAPR defined "XICS" interrupt controller system within KVM. This patch allows qemu to initialize and configure the in-kernel XICS, and keep its state in sync with qemu's XICS state as necessary. This should give considerable performance improvements. e.g. on a simple IPI ping-pong test between hardware threads, using qemu XICS gives us around 5,000 irqs/second, whereas the in-kernel XICS gives us around 70,000 irqs/s on the same hardware configuration. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> [Mike Qiu <qiudayu@linux.vnet.ibm.com>: fixed mistype which caused ics_set_kvm_state() to fail] Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
27 lines
1.0 KiB
Makefile
27 lines
1.0 KiB
Makefile
common-obj-$(CONFIG_HEATHROW_PIC) += heathrow_pic.o
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common-obj-$(CONFIG_I8259) += i8259_common.o i8259.o
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common-obj-$(CONFIG_PL190) += pl190.o
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common-obj-$(CONFIG_PUV3) += puv3_intc.o
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common-obj-$(CONFIG_XILINX) += xilinx_intc.o
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common-obj-$(CONFIG_ETRAXFS) += etraxfs_pic.o
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common-obj-$(CONFIG_IMX) += imx_avic.o
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common-obj-$(CONFIG_LM32) += lm32_pic.o
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common-obj-$(CONFIG_REALVIEW) += realview_gic.o
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common-obj-$(CONFIG_SLAVIO) += slavio_intctl.o
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common-obj-$(CONFIG_IOAPIC) += ioapic_common.o
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common-obj-$(CONFIG_ARM_GIC) += arm_gic_common.o
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common-obj-$(CONFIG_ARM_GIC) += arm_gic.o
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common-obj-$(CONFIG_OPENPIC) += openpic.o
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obj-$(CONFIG_APIC) += apic.o apic_common.o
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obj-$(CONFIG_ARM_GIC_KVM) += arm_gic_kvm.o
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obj-$(CONFIG_STELLARIS) += armv7m_nvic.o
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obj-$(CONFIG_EXYNOS4) += exynos4210_gic.o exynos4210_combiner.o
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obj-$(CONFIG_GRLIB) += grlib_irqmp.o
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obj-$(CONFIG_IOAPIC) += ioapic.o
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obj-$(CONFIG_OMAP) += omap_intc.o
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obj-$(CONFIG_OPENPIC_KVM) += openpic_kvm.o
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obj-$(CONFIG_SH4) += sh_intc.o
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obj-$(CONFIG_XICS) += xics.o
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obj-$(CONFIG_XICS_KVM) += xics_kvm.o
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