The PELTV of PF PE should include VF PE, which is missed by current
code, so that the VF PE is frozen automatically when freezing PF PE.
The patch fixes the PELTV of PF PE to include VF PE.
Signed-off-by: Gavin Shan gws...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
Hi,
While developing memory hotplug support in QEMU for PoweKVM, I
realized that guest kernel has specific checks to prevent hot addition
of memory to a memory-less node.
I am referring to arch/powerpc/mm/numa.c:hot_add_scn_to_nid() which
has explicit checks to ensure that it returns a nid that
To support hybrid DMA ops in a subsequent patch, we will need both
a direct DMA offset and an iommu pointer. Those are currently exclusive
(a union), so change them to be separate fields.
While there, also type iommu_table_base properly and make exist only
on CONFIG_PPC64 since it's not
Now that the table and the offset can co-exist, we no longer need
to flip/flop, we can just establish both once at boot time.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
---
arch/powerpc/platforms/powernv/pci-ioda.c | 50 +++
This patch adds the ability to the DMA direct ops to fallback to the IOMMU
ops for coherent alloc/free if the coherent mask of the device isn't
suitable for accessing the direct DMA space and the device also happens
to have an active IOMMU table.
Signed-off-by: Benjamin Herrenschmidt
opal-prd driver will mmap() firmware code/data area as private
mapping to prd user space daemon. Write to this page will
trigger COW faults. The new COW pages are normal kernel RAM
pages accounted by the kernel and are not special.
vma-vm_page_prot value will be used at page fault time
for the
