linux/arch/powerpc
Paul Mackerras e7b17d5047 powerpc: Turn off CPU_FTR_P9_TM_HV_ASSIST in non-hypervisor mode
When doing nested virtualization, it is only necessary to do the
transactional memory hypervisor assist at level 0, that is, when
we are in hypervisor mode.  Nested hypervisors can just use the TM
facilities as architected.  Therefore we should clear the
CPU_FTR_P9_TM_HV_ASSIST bit when we are not in hypervisor mode,
along with the CPU_FTR_HVMODE bit.

Doing this will not change anything at this stage because the only
code that tests CPU_FTR_P9_TM_HV_ASSIST is in HV KVM, which currently
can only be used when when CPU_FTR_HVMODE is set.

Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-09 16:04:27 +11:00
..
boot powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
configs powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
crypto powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
include KVM: PPC: Remove redundand permission bits removal 2018-10-09 16:04:27 +11:00
kernel powerpc: Turn off CPU_FTR_P9_TM_HV_ASSIST in non-hypervisor mode 2018-10-09 16:04:27 +11:00
kvm KVM: PPC: Remove redundand permission bits removal 2018-10-09 16:04:27 +11:00
lib powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled 2018-08-10 22:12:35 +10:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm KVM: PPC: Avoid marking DMA-mapped pages dirty in real mode 2018-09-12 08:49:54 +10:00
net powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
oprofile treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
perf powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
platforms Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax 2018-08-26 11:48:42 -07:00
purgatory powerpc updates for 4.19 2018-08-17 11:32:50 -07:00
sysdev treewide: correct "differenciate" and "instanciate" typos 2018-08-23 18:48:43 -07:00
tools powerpc: Add a checkpatch wrapper with our preferred settings 2018-08-07 21:49:25 +10:00
xmon Merge branch 'fixes' into next 2018-08-13 15:59:06 +10:00
Kconfig powerpc: disable support for relative ksymtab references 2018-08-29 16:12:07 -07:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile kbuild: rename LDFLAGS to KBUILD_LDFLAGS 2018-08-24 08:22:08 +09:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00