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powerpc/64s: Disallow PROT_SAO in LPARs by default
authorShawn Anastasio <shawn@anastas.io>
Fri, 21 Aug 2020 18:55:57 +0000 (13:55 -0500)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 24 Aug 2020 04:12:54 +0000 (14:12 +1000)
commit9b725a90a8f127802e19466d4e336e701bcea0d2
tree03641564d277fa36483be5cef7fce5deb8454572tree
parent12564485ed8caac3c18572793ec01330792c7191commit | diff
powerpc/64s: Disallow PROT_SAO in LPARs by default

Since migration of guests using SAO to ISA 3.1 hosts may cause issues,
disable PROT_SAO in LPARs by default and introduce a new Kconfig option
PPC_PROT_SAO_LPAR to allow users to enable it if desired.

Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-3-shawn@anastas.io
arch/powerpc/Kconfig diff | blob | history
arch/powerpc/include/asm/mman.h diff | blob | history
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