Re: [PATCH v8 03/14] powerpc/vas: Define nx_fault_stamp in coprocessor_request_block
From: Nicholas Piggin <npiggin@gmail.com>
Date: 2020-03-23 01:36:32
Haren Myneni's on March 23, 2020 10:57 am:
On Mon, 2020-03-23 at 10:30 +1000, Nicholas Piggin wrote:quoted
Haren Myneni's on March 19, 2020 4:13 pm:quoted
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 <redacted> Signed-off-by: Haren Myneni <haren@linux.ibm.com> --- arch/powerpc/include/asm/icswx.h | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-)diff --git a/arch/powerpc/include/asm/icswx.h b/arch/powerpc/include/asm/icswx.h index 9872f85..b233d1e 100644 --- a/arch/powerpc/include/asm/icswx.h +++ b/arch/powerpc/include/asm/icswx.h"icswx" is not a thing anymore, after 6ff4d3e96652 ("powerpc: Remove old unused icswx based coprocessor support"). I guess NX is reusing some things from it, but it would be good to get rid of the cruft and re-name this file and and relevant names. NX already uses this file, so I guesss that can happen after this series.But NX uses icswx on P8 and icswx.h has only NX specific macros right now.
Oh P8 in kernel is still using it? Ignore me then. Thanks, Nick