[PATCH v8 3/6] KVM: arm64: Use per guest ID register for ID_AA64PFR0_EL1.[CSV2|CSV3]

[kernel test robot]

Hi Jing,

kernel test robot noticed the following build errors:

[auto build test ERROR on 6a8f57ae2eb07ab39a6f0ccad60c760743051026]

url:    https://github.com/intel-lab-lkp/linux/commits/Jing-Zhang/KVM-arm64-Move-CPU-ID-feature-registers-emulation-into-a-separate-file/20230504-011759
base:   6a8f57ae2eb07ab39a6f0ccad60c760743051026
patch link:    https://lore.kernel.org/r/20230503171618.2020461-4-jingzhangos%40google.com
patch subject: [PATCH v8 3/6] KVM: arm64: Use per guest ID register for ID_AA64PFR0_EL1.[CSV2|CSV3]
config: arm64-allyesconfig (https://download.01.org/0day-ci/archive/20230504/202305040748.hUxGyrJF-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
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
        # https://github.com/intel-lab-lkp/linux/commit/5c887874c5459c9690cf3eac8b68022d72789533
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Jing-Zhang/KVM-arm64-Move-CPU-ID-feature-registers-emulation-into-a-separate-file/20230504-011759
        git checkout 5c887874c5459c9690cf3eac8b68022d72789533
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp at intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202305040748.hUxGyrJF-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/rhashtable-types.h:14,
                    from include/linux/ipc.h:7,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/sched.h:15,
                    from include/linux/hardirq.h:9,
                    from include/linux/kvm_host.h:7,
                    from arch/arm64/kvm/id_regs.c:13:
   arch/arm64/kvm/id_regs.c: In function 'get_id_reg':
>> arch/arm64/kvm/id_regs.c:152:25: error: 'struct kvm_arch' has no member named 'config_lock'
     152 |         mutex_lock(&arch->config_lock);
         |                         ^~
   include/linux/mutex.h:187:44: note: in definition of macro 'mutex_lock'
     187 | #define mutex_lock(lock) mutex_lock_nested(lock, 0)
         |                                            ^~~~
   arch/arm64/kvm/id_regs.c:154:27: error: 'struct kvm_arch' has no member named 'config_lock'
     154 |         mutex_unlock(&arch->config_lock);
         |                           ^~
   arch/arm64/kvm/id_regs.c: In function 'set_id_aa64pfr0_el1':
   arch/arm64/kvm/id_regs.c:221:25: error: 'struct kvm_arch' has no member named 'config_lock'
     221 |         mutex_lock(&arch->config_lock);
         |                         ^~
   include/linux/mutex.h:187:44: note: in definition of macro 'mutex_lock'
     187 | #define mutex_lock(lock) mutex_lock_nested(lock, 0)
         |                                            ^~~~
   arch/arm64/kvm/id_regs.c:239:27: error: 'struct kvm_arch' has no member named 'config_lock'
     239 |         mutex_unlock(&arch->config_lock);
         |                           ^~


vim +152 arch/arm64/kvm/id_regs.c

   139	
   140	/*
   141	 * cpufeature ID register user accessors
   142	 *
   143	 * For now, these registers are immutable for userspace, so no values
   144	 * are stored, and for set_id_reg() we don't allow the effective value
   145	 * to be changed.
   146	 */
   147	static int get_id_reg(struct kvm_vcpu *vcpu, const struct sys_reg_desc *rd,
   148			      u64 *val)
   149	{
   150		struct kvm_arch *arch = &vcpu->kvm->arch;
   151	
 > 152		mutex_lock(&arch->config_lock);
   153		*val = read_id_reg(vcpu, rd);
   154		mutex_unlock(&arch->config_lock);
   155	
   156		return 0;
   157	}
   158	

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