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powerpc/pesries: Get STF barrier requirement from H_GET_CPU_CHARACTERISTICS
authorNicholas Piggin <npiggin@gmail.com>
Mon, 3 May 2021 13:02:42 +0000 (23:02 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 21 Jun 2021 11:13:19 +0000 (21:13 +1000)
commitb1a6cd5458bd89a82df3ae9740e5a8e03e70d658
tree9dc3e36bd70446894232a9036c23c3f3e3159231tree | snapshot
parentba9507affcc1e35d38a830af55c1942b4d2ba4e8commit | diff
powerpc/pesries: Get STF barrier requirement from H_GET_CPU_CHARACTERISTICS

This allows the hypervisor / firmware to describe this workarounds to
the guest.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210503130243.891868-4-npiggin@gmail.com
arch/powerpc/include/asm/hvcall.h diff | blob | history
arch/powerpc/platforms/pseries/setup.c diff | blob | history
Linux Kernel Source Tree.