On Wed, 2015-02-18 at 08:30 -0600, Bjorn Helgaas wrote:
>
> So the hypervisor call that removes the device from the partition will
> fail if there are any translations that reference the memory of the
> device.
>
> Let me go through this in excruciating detail to see if I understand
> what's goin
[+cc linux-mm, linux-kernel]
For context, the start of this discussion was here:
http://lkml.kernel.org/r/1424157203-691-8-git-send-email-gws...@linux.vnet.ibm.com
where Gavin is adding a new PCI hotplug driver for PowerNV. That new
driver calls vm_unmap_aliases() the same way we do in the existi
On Wed, 2015-02-18 at 11:16 +1100, Gavin Shan wrote:
> >What is vm_unmap_aliases() for? I see this is probably copied from
> >rpaphp_core.c, where it was added by b4a26be9f6f8 ("powerpc/pseries:
> Flush
> >lazy kernel mappings after unplug operations").
> >
> >But I don't know whether:
> >
> > -
On Tue, Feb 17, 2015 at 04:09:16PM -0600, Bjorn Helgaas wrote:
>On Tue, Feb 17, 2015 at 06:13:23PM +1100, Gavin Shan wrote:
>> The patch intends to add standalone driver to support PCI hotplug
>> for PowerPC PowerNV platform, which runs on top of skiboot firmware.
>> The firmware identified hotplug
On Tue, Feb 17, 2015 at 06:13:23PM +1100, Gavin Shan wrote:
> The patch intends to add standalone driver to support PCI hotplug
> for PowerPC PowerNV platform, which runs on top of skiboot firmware.
> The firmware identified hotpluggable slots and marked their device
> tree node with proper "ibm,sl
The patch intends to add standalone driver to support PCI hotplug
for PowerPC PowerNV platform, which runs on top of skiboot firmware.
The firmware identified hotpluggable slots and marked their device
tree node with proper "ibm,slot-pluggable" and "ibm,reset-by-firmware".
The driver simply scans d
