qemu/include/hw/ppc
David Gibson 11ad93f681 xics-kvm: Support for in-kernel XICS interrupt controller
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>
2013-10-25 23:25:47 +02:00
..
mac_dbdma.h PPC: dbdma: Support unaligned DMA access 2013-07-11 18:51:25 +02:00
openpic.h intc/openpic_kvm: Fix QOM and build issues 2013-07-01 01:11:15 +02:00
ppc4xx.h
ppc_e500.h intc/openpic: Build openpic only once 2013-07-09 21:33:02 +02:00
ppc.h intc/openpic: Build openpic only once 2013-07-09 21:33:02 +02:00
spapr_vio.h pseries: savevm support for VIO devices 2013-07-29 10:37:08 -05:00
spapr.h spapr-rtas: fix h_rtas parameters reading 2013-10-25 23:25:46 +02:00
xics.h xics-kvm: Support for in-kernel XICS interrupt controller 2013-10-25 23:25:47 +02:00