qemu/include/hw
David Gibson 3e4ac96871 pseries: Limit PCI host bridge "index" value
pseries guests can have large numbers of PCI host bridges.  To avoid the
user having to specify a number of different configuration values for every
one, the device supports an "index" property which is a shorthand setting
the various window and configuration addresses from a predefined sensible
set.

There are some problems with the details at present:
  * The "index" propery is signed, but negative values will create PCI
windows below where we expect, potentially colliding with other devices
  * No limit is imposed on the "index" property and large values can
translate to extremely large window addresses.  With PCI passthrough in
particular this can mean we exceed various mapping and physical address
limits causing the guest host bridge to not work in strange ways.

This patch addresses this, by making "index" unsigned, and imposing a
limit.  Currently the limit allows indices from 0..255 which is probably
enough host bridges for the time being.  It's fairly easy to extend if
we discover we need more.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:54 +01:00
..
acpi aml-build: comment fix 2015-03-08 11:51:46 +01:00
arm target_arm: Parameterise the irq lines for armv7m_init 2015-02-05 13:37:21 +00:00
audio isa: QOM'ify ISADevice 2013-06-07 14:55:33 +02:00
block hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
char serial: Factor out common serial_hds_isa_init() 2015-02-24 00:19:06 +01:00
cpu icc_bus: QOM'ify ICC 2013-12-24 18:02:18 +01:00
cris cris: Remove the CRIS PIC glue 2014-02-03 14:04:00 +00:00
i2c smbus: return -1 if nothing found at the given address 2014-05-07 19:14:46 +03:00
i386 pci, pc, virtio fixes and cleanups 2015-03-09 09:14:28 +00:00
input input: switch hid mouse and tablet to the new input layer api. 2014-05-26 08:42:43 +02:00
intc arm: vgic device control api support 2014-02-26 17:20:00 +00:00
ipack ipack: Move IndustryPack out of hw/char/ 2014-02-14 21:11:53 +01:00
isa pc: export applesmc IO port/len 2015-03-01 12:33:22 +01:00
kvm hw: move headers to include/ 2013-04-08 18:13:10 +02:00
lm32 hmp: Name HMP info handler functions hmp_info_SUBCOMMAND() 2015-02-18 11:58:50 +01:00
m68k hw: move headers to include/ 2013-04-08 18:13:10 +02:00
mem pc-dimm: Add Error argument to pc_existing_dimms_capacity 2015-01-27 14:46:18 +02:00
mips hw/mips: Add API to convert KVM guest KSEG0 <-> GPA 2014-06-18 16:58:10 +02:00
misc vfio: move hw/misc/vfio.c to hw/vfio/pci.c Move vfio.h into include/hw/vfio 2014-12-19 15:24:06 -07:00
net allwinner-emac: set autonegotiation complete bit on link up 2014-04-17 21:34:06 +01:00
nvram fw_cfg_mem: expose the "data_width" property with fw_cfg_init_mem_wide() 2014-12-22 23:39:18 +00:00
pci pci: Give a few helpers internal linkage 2015-03-01 12:35:21 +01:00
pci-host pseries: Limit PCI host bridge "index" value 2015-03-09 14:59:54 +01:00
ppc spapr_vio/spapr_iommu: Move VIO bypass where it belongs 2015-03-09 14:59:52 +01:00
s390x s390: Add PCI bus support 2015-01-12 10:14:04 +01:00
scsi esp: Do not overwrite ESP_TCHI after reset 2014-11-12 10:27:03 +01:00
sh4 sh7750: Change cpu field type to SuperHCPU 2013-04-13 13:51:45 +02:00
sparc QOM infrastructure fixes and device conversions 2015-03-02 13:20:43 +00:00
timer allwinner-a10-pit: implement prescaler and source selection 2014-04-17 21:34:06 +01:00
tricore target-tricore: Add board for systemmode 2014-09-01 14:49:20 +01:00
unicore32 hw: move headers to include/ 2013-04-08 18:13:10 +02:00
usb usb: move ehci register defines to header file 2014-06-02 16:28:59 +02:00
vfio vfio: allow to disable MMAP per device with -x-mmap=off option 2015-03-02 11:38:55 -07:00
virtio virtio: add feature checking helpers 2015-02-26 13:04:07 +01:00
xen fix QEMU build on Xen/ARM 2015-01-26 11:56:33 +00:00
boards.h hw/machine: added machine_usb wrapper 2015-01-08 17:32:27 +00:00
bt.h Preparation for usb-bt-dongle conditional build 2013-09-10 11:14:41 +02:00
compat.h virtio-pci: fix migration for pci bus master 2014-11-02 12:03:03 +02:00
devices.h arm: fix location of some include files 2013-04-15 15:16:01 +02:00
elf_ops.h loader: g_realloc(p, 0) frees and returns NULL, simplify 2014-09-29 19:44:04 +03:00
empty_slot.h hw: move headers to include/ 2013-04-08 18:13:10 +02:00
fw-path-provider.h fw-path-provider: Change GPL version to 2+ 2014-04-07 15:36:07 +02:00
hotplug.h misc: Fix new typos in comments 2015-01-15 10:44:13 +03:00
hw.h bootdevice: move code about bootorder from vl.c to bootdevice.c 2014-12-22 14:39:20 +08:00
ide.h Call pci_piix3_xen_ide_unplug from unplug_disks 2014-02-20 17:28:08 +00:00
irq.h irq: Remove qemu_irq_intercept_out 2014-10-23 16:41:25 +02:00
loader.h hmp: Name HMP info handler functions hmp_info_SUBCOMMAND() 2015-02-18 11:58:50 +01:00
nmi.h cpus: Define callback for QEMU "nmi" command 2014-08-25 13:25:16 +02:00
pcmcia.h hmp: Remove "info pcmcia" 2014-10-24 12:19:11 +01:00
platform-bus.h sysbus: Add new platform bus helper device 2014-11-04 23:26:14 +01:00
ptimer.h vmstate: Make VMSTATE_STRUCT_POINTER take type, not ptr-to-type 2014-02-04 15:51:45 +01:00
qdev-core.h qdev: support to get a device firmware path directly 2015-02-11 21:47:51 +01:00
qdev-dma.h qdev: Remove hex8/32/64 property types 2014-02-14 21:12:04 +01:00
qdev-properties.h qdev: Don't exit when running into bad -global 2015-02-26 12:42:18 +01:00
qdev.h hw: move headers to include/ 2013-04-08 18:13:10 +02:00
sd.h hw: Convert from BlockDriverState to BlockBackend, mostly 2014-10-20 14:02:25 +02:00
ssi.h ssi: Name the CS GPIO 2014-05-28 17:36:21 +02:00
stream.h Trivial grammar and spelling fixes 2013-05-01 20:55:21 +04:00
sysbus.h trivial patches for 2014-11-11 2014-11-11 14:50:10 +00:00
usb.h hmp: Name HMP info handler functions hmp_info_SUBCOMMAND() 2015-02-18 11:58:50 +01:00