From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:33258 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932415AbdCJIk1 (ORCPT ); Fri, 10 Mar 2017 03:40:27 -0500 Subject: Patch "powerpc/mm/hash: Always clear UPRT and Host Radix bits when setting up CPU" has been added to the 4.10-stable tree To: aneesh.kumar@linux.vnet.ibm.com, gregkh@linuxfoundation.org, mikey@neuling.org, mpe@ellerman.id.au Cc: , From: Date: Fri, 10 Mar 2017 09:38:50 +0100 Message-ID: <148913513021545@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled powerpc/mm/hash: Always clear UPRT and Host Radix bits when setting up CPU to the 4.10-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-mm-hash-always-clear-uprt-and-host-radix-bits-when-setting-up-cpu.patch and it can be found in the queue-4.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From fda2d27db6eae5c2468f9e4657539b72bbc238bb Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 22 Feb 2017 10:42:02 +0530 Subject: powerpc/mm/hash: Always clear UPRT and Host Radix bits when setting up CPU From: Aneesh Kumar K.V commit fda2d27db6eae5c2468f9e4657539b72bbc238bb upstream. We will set LPCR with correct value for radix during int. This make sure we start with a sanitized value of LPCR. In case of kexec, cpus can have LPCR value based on the previous translation mode we were running. Fixes: fe036a0605d60 ("powerpc/64/kexec: Fix MMU cleanup on radix") Acked-by: Michael Neuling Signed-off-by: Aneesh Kumar K.V Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/kernel/cpu_setup_power.S | 4 ++++ 1 file changed, 4 insertions(+) --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -101,6 +101,8 @@ _GLOBAL(__setup_cpu_power9) mfspr r3,SPRN_LPCR LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE) or r3, r3, r4 + LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR) + andc r3, r3, r4 bl __init_LPCR bl __init_HFSCR bl __init_tlb_power9 @@ -122,6 +124,8 @@ _GLOBAL(__restore_cpu_power9) mfspr r3,SPRN_LPCR LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE) or r3, r3, r4 + LOAD_REG_IMMEDIATE(r4, LPCR_UPRT | LPCR_HR) + andc r3, r3, r4 bl __init_LPCR bl __init_HFSCR bl __init_tlb_power9 Patches currently in stable-queue which might be from aneesh.kumar@linux.vnet.ibm.com are queue-4.10/powerpc-mm-add-mmu_ftr_kernel_ro-to-possible-feature-mask.patch queue-4.10/powerpc-mm-hash-always-clear-uprt-and-host-radix-bits-when-setting-up-cpu.patch