linux-kernel - Re: [PATCH] arm64: Disable EL2 traps for BRBE instructions executed in EL1

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 25 Mar 2023 08:37:27 +0800
From:   kernel test robot <lkp@...el.com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        Anshuman Khandual <anshuman.khandual@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Mark Brown <broonie@...nel.org>,
        Marc Zyngier <maz@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: Disable EL2 traps for BRBE instructions executed
 in EL1

Hi Anshuman,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on arm64/for-next/core]
[also build test ERROR on arm/for-next arm/fixes kvmarm/next soc/for-next xilinx-xlnx/master linus/master v6.3-rc3 next-20230324]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Anshuman-Khandual/arm64-Disable-EL2-traps-for-BRBE-instructions-executed-in-EL1/20230324-135312
base:   https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-next/core
patch link:    https://lore.kernel.org/r/20230324055127.2228330-1-anshuman.khandual%40arm.com
patch subject: [PATCH] arm64: Disable EL2 traps for BRBE instructions executed in EL1
config: arm64-randconfig-r001-20230322 (https://download.01.org/0day-ci/archive/20230325/202303250802.KytExIHw-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/intel-lab-lkp/linux/commit/457bbac085c7f83be1a63b54f6caf32b820503eb
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Anshuman-Khandual/arm64-Disable-EL2-traps-for-BRBE-instructions-executed-in-EL1/20230324-135312
        git checkout 457bbac085c7f83be1a63b54f6caf32b820503eb
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202303250802.KytExIHw-lkp@intel.com/

All errors (new ones prefixed by >>):

>> <instantiation>:36:14: error: expected compatible register or logical immediate
    orr x0, x0, #HFGITR_EL2_nBRBIALL
                ^
   <instantiation>:10:2: note: while in macro instantiation
    __init_el2_fgt
    ^
   arch/arm64/kernel/head.S:577:2: note: while in macro instantiation
    init_el2_state
    ^
   <instantiation>:37:14: error: expected compatible register or logical immediate
    orr x0, x0, #HFGITR_EL2_nBRBINJ
                ^
   <instantiation>:10:2: note: while in macro instantiation
    __init_el2_fgt
    ^
   arch/arm64/kernel/head.S:577:2: note: while in macro instantiation
    init_el2_state
    ^

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests