[PATCH v3] powerpc: Ignore DSI error caused by the copy/paste instruction

Michael Ellerman patch-notifications at ellerman.id.au
Wed Oct 5 00:26:05 AEDT 2022


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


More information about the Linuxppc-dev mailing list