powerpc/vas: Define nx_fault_stamp in coprocessor_request_block

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Kernel sets fault address and status in CRB for NX page fault on user
space address after processing page fault. User space gets the signal
and handles the fault mentioned in CRB by bringing the page in to
memory and send NX request again.

Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1587016769.2275.1048.camel@hbabu-laptop

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Haren Myneni 2020-04-15 22:59:29 -07:00 • committed by Michael Ellerman

parent 8d0ea29db5

commit 73a8077938

1 changed files with 18 additions and 2 deletions

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arch/powerpc/include/asm/icswx.h

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