On Tue, 27 Sep 2022 18:29:27 -0700, Haren Myneni wrote:

The data storage interrupt (DSI) error will be generated when the
paste operation is issued on the suspended Nest Accelerator (NX)
window due to NX state changes. The hypervisor expects the
partition to ignore this error during page fault handling.
To differentiate DSI caused by an actual HW configuration or by
the NX window, a new “ibm,pi-features” type value is defined.
Byte 0, bit 3 of pi-attribute-specifier-type is now defined to
indicate this DSI error. If this error is not ignored, the user
space can get SIGBUS when the NX request is issued.

[...]

Applied to powerpc/next.

[1/1] powerpc: Ignore DSI error caused by the copy/paste instruction
      https://git.kernel.org/powerpc/c/335e1a91042764629fbbcd8c7e40379fa3762d35

cheers