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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>
59 lines
1.1 KiB
Makefile
59 lines
1.1 KiB
Makefile
# Default configuration for ppc64-softmmu
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include pci.mak
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include sound.mak
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include usb.mak
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CONFIG_ISA_MMIO=y
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CONFIG_ESCC=y
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CONFIG_M48T59=y
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CONFIG_VGA=y
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CONFIG_VGA_PCI=y
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CONFIG_SERIAL=y
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CONFIG_PARALLEL=y
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CONFIG_I8254=y
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CONFIG_PCKBD=y
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CONFIG_FDC=y
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CONFIG_I8257=y
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CONFIG_I82374=y
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CONFIG_OPENPIC=y
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CONFIG_PREP_PCI=y
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CONFIG_I82378=y
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CONFIG_PC87312=y
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CONFIG_MACIO=y
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CONFIG_PCSPK=y
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CONFIG_CUDA=y
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CONFIG_ADB=y
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CONFIG_MAC_NVRAM=y
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CONFIG_MAC_DBDMA=y
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CONFIG_HEATHROW_PIC=y
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CONFIG_GRACKLE_PCI=y
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CONFIG_UNIN_PCI=y
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CONFIG_DEC_PCI=y
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CONFIG_PPCE500_PCI=y
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CONFIG_IDE_ISA=y
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CONFIG_IDE_CMD646=y
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CONFIG_IDE_MACIO=y
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CONFIG_NE2000_ISA=y
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CONFIG_PFLASH_CFI01=y
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CONFIG_PFLASH_CFI02=y
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CONFIG_PTIMER=y
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CONFIG_I8259=y
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CONFIG_XILINX=y
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CONFIG_XILINX_ETHLITE=y
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CONFIG_OPENPIC=y
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CONFIG_PSERIES=y
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CONFIG_E500=y
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CONFIG_OPENPIC_KVM=$(and $(CONFIG_E500),$(CONFIG_KVM))
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# For pSeries
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CONFIG_XICS=$(CONFIG_PSERIES)
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CONFIG_XICS_KVM=$(and $(CONFIG_PSERIES),$(CONFIG_KVM))
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# For PReP
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CONFIG_I82378=y
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CONFIG_I8259=y
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CONFIG_I8254=y
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CONFIG_PCSPK=y
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CONFIG_I82374=y
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CONFIG_I8257=y
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CONFIG_MC146818RTC=y
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CONFIG_ISA_TESTDEV=y
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