diff options
| author | Laurent Vivier <lvivier@redhat.com> | 2015-07-24 10:35:13 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-08-13 14:08:29 +0300 |
| commit | e402463073ae51d00dc6cf98556e2f5c4b008a31 (patch) | |
| tree | 2f1d897da56da6ee0b038c6285378d9ecce88391 /include/hw | |
| parent | c8d163bc9e037ec32b2250b2d7950b1d1bc3fd61 (diff) | |
pci: allow 0 address for PCI IO/MEM regions
Some kernels program a 0 address for io regions. PCI 3.0 spec
section 6.2.5.1 doesn't seem to disallow this.
based on patch by Michael Roth <mdroth@linux.vnet.ibm.com>
Add pci_allow_0_addr in MachineClass to conditionally
allow addr 0 for pseries, as this can break other architectures.
This patch allows to hotplug PCI card in pseries machine, as the first
added card BAR0 is always set to 0 address.
This as a temporary hack, waiting to fix PCI memory priorities for more
machine types...
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw')
| -rw-r--r-- | include/hw/boards.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/hw/boards.h b/include/hw/boards.h index 2aec9cbb12..3f84afdf1c 100644 --- a/include/hw/boards.h +++ b/include/hw/boards.h @@ -100,7 +100,8 @@ struct MachineClass { no_cdrom:1, no_sdcard:1, has_dynamic_sysbus:1, - no_tco:1; + no_tco:1, + pci_allow_0_address:1; int is_default; const char *default_machine_opts; const char *default_boot_order; |