This is a note to let you know that I've just added the patch titled
powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
powerpc-rfi-flush-call-setup_rfi_flush-after-lpm-migration.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <sta...@vger.kernel.org> know about it.
>From foo@baz Sun May 27 15:47:18 CEST 2018
From: Michael Ellerman <m...@ellerman.id.au>
Date: Sat, 26 May 2018 14:27:34 +1000
Subject: powerpc/rfi-flush: Call setup_rfi_flush() after LPM migration
To: g...@kroah.com
Cc: sta...@vger.kernel.org, t...@linutronix.de, linuxppc-...@ozlabs.org
Message-ID: <20180526042749.5324-9-...@ellerman.id.au>
From: Michael Ellerman <m...@ellerman.id.au>
commit 921bc6cf807ceb2ab8005319cf39f33494d6b100 upstream.
We might have migrated to a machine that uses a different flush type,
or doesn't need flushing at all.
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Mauricio Faria de Oliveira <mauri...@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/powerpc/platforms/pseries/mobility.c | 3 +++
arch/powerpc/platforms/pseries/pseries.h | 2 ++
arch/powerpc/platforms/pseries/setup.c | 2 +-
3 files changed, 6 insertions(+), 1 deletion(-)
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -348,6 +348,9 @@ void post_mobility_fixup(void)
printk(KERN_ERR "Post-mobility device tree update "
"failed: %d\n", rc);
+ /* Possibly switch to a new RFI flush type */
+ pseries_setup_rfi_flush();
+
return;
}
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -100,4 +100,6 @@ static inline unsigned long cmo_get_page
int dlpar_workqueue_init(void);
+void pseries_setup_rfi_flush(void);
+
#endif /* _PSERIES_PSERIES_H */
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -459,7 +459,7 @@ static void __init find_and_init_phbs(vo
of_pci_check_probe_only();
}
-static void pseries_setup_rfi_flush(void)
+void pseries_setup_rfi_flush(void)
{
struct h_cpu_char_result result;
enum l1d_flush_type types;
Patches currently in stable-queue which might be from m...@ellerman.id.au are
queue-4.14/powerpc-64s-clear-pcr-on-boot.patch
queue-4.14/powerpc-rfi-flush-differentiate-enabled-and-patched-flush-types.patch
queue-4.14/powerpc-64s-fix-section-mismatch-warnings-from-setup_rfi_flush.patch
queue-4.14/powerpc-pseries-fix-clearing-of-security-feature-flags.patch
queue-4.14/powerpc-powernv-set-or-clear-security-feature-flags.patch
queue-4.14/powerpc-64s-move-cpu_show_meltdown.patch
queue-4.14/powerpc-rfi-flush-call-setup_rfi_flush-after-lpm-migration.patch
queue-4.14/powerpc-pseries-set-or-clear-security-feature-flags.patch
queue-4.14/powerpc-rfi-flush-make-it-possible-to-call-setup_rfi_flush-again.patch
queue-4.14/powerpc-move-default-security-feature-flags.patch
queue-4.14/powerpc-powernv-use-the-security-flags-in-pnv_setup_rfi_flush.patch
queue-4.14/powerpc-add-security-feature-flags-for-spectre-meltdown.patch
queue-4.14/powerpc-pseries-use-the-security-flags-in-pseries_setup_rfi_flush.patch
queue-4.14/powerpc-64s-enhance-the-information-in-cpu_show_meltdown.patch
queue-4.14/powerpc-64s-improve-rfi-l1-d-cache-flush-fallback.patch
queue-4.14/powerpc-rfi-flush-always-enable-fallback-flush-on-pseries.patch
queue-4.14/powerpc-rfi-flush-move-the-logic-to-avoid-a-redo-into-the-debugfs-code.patch
queue-4.14/powerpc-pseries-restore-default-security-feature-flags-on-setup.patch
queue-4.14/powerpc-pseries-add-new-h_get_cpu_characteristics-flags.patch
queue-4.14/powerpc-64s-add-support-for-a-store-forwarding-barrier-at-kernel-entry-exit.patch
queue-4.14/powerpc-64s-wire-up-cpu_show_spectre_v1.patch
queue-4.14/powerpc-powernv-support-firmware-disable-of-rfi-flush.patch
queue-4.14/powerpc-pseries-support-firmware-disable-of-rfi-flush.patch
queue-4.14/powerpc-64s-wire-up-cpu_show_spectre_v2.patch
