powerpc/pseries: Get entry and uaccess flush required bits from H_GET_CPU_CHARACTERISTICS
authorNicholas Piggin <npiggin@gmail.com>
Mon, 3 May 2021 13:02:40 +0000 (23:02 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 21 Jun 2021 11:13:19 +0000 (21:13 +1000)
commit65c7d070850e109a8a75a431f5a7f6eb4c007b77
treeb2776c8cfd06b6370b2f5313e205239b1ea51623
parent710e682286784b50b882fc4befdf83c587059211
powerpc/pseries: Get entry and uaccess flush required bits from H_GET_CPU_CHARACTERISTICS

This allows the hypervisor / firmware to describe these 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/20210503130243.891868-2-npiggin@gmail.com
arch/powerpc/include/asm/hvcall.h
arch/powerpc/platforms/pseries/setup.c