kexec-tools: ppc64: avoid adding coherent memory regions to crash memory ranges

Accelerator devices like GPU and FPGA cards contain onboard memory. This
onboard memory is represented as a memory only NUMA node, integrating it
with core memory subsystem. Since, the link through which these devices
are integrated to core memory goes down after a system crash and they are
meant for user workloads, avoid adding coherent device memory regions to
crash memory ranges. Without this change, makedumpfile tool tries to save
unaccessible coherent device memory regions, crashing the system.

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Tested-by: Pingfan Liu <piliu@redhat.com>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions