linux-kernel - arch/powerpc/kvm/e500mc.c:95:15: error: invalid instruction

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Message-ID: <202307211945.TSPcyOhh-lkp@intel.com>
Date:   Fri, 21 Jul 2023 19:34:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Sean Christopherson <seanjc@...gle.com>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Michael Ellerman <mpe@...erman.id.au>
Subject: arch/powerpc/kvm/e500mc.c:95:15: error: invalid instruction

Hi Sean,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f7e3a1bafdea735050dfde00523cf505dc7fd309
commit: e83ca8cfa286c9fc78b585b0e66df7f542bcbcf2 KVM: PPC: booke: Mark three local functions "static"
date:   4 months ago
config: powerpc-randconfig-r001-20230721 (https://download.01.org/0day-ci/archive/20230721/202307211945.TSPcyOhh-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230721/202307211945.TSPcyOhh-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202307211945.TSPcyOhh-lkp@intel.com/

All errors (new ones prefixed by >>):

>> arch/powerpc/kvm/e500mc.c:95:15: error: invalid instruction
      95 |         asm volatile("tlbilxlpid");
         |                      ^
   <inline asm>:1:2: note: instantiated into assembly here
       1 |         tlbilxlpid
         |         ^~~~~~~~~~
>> arch/powerpc/kvm/e500mc.c:95:15: error: invalid instruction
      95 |         asm volatile("tlbilxlpid");
         |                      ^
   <inline asm>:1:2: note: instantiated into assembly here
       1 |         tlbilxlpid
         |         ^~~~~~~~~~
   2 errors generated.


vim +95 arch/powerpc/kvm/e500mc.c

73196cd364a2d9 Scott Wood    2011-12-20  88  
73196cd364a2d9 Scott Wood    2011-12-20  89  void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500)
73196cd364a2d9 Scott Wood    2011-12-20  90  {
73196cd364a2d9 Scott Wood    2011-12-20  91  	unsigned long flags;
73196cd364a2d9 Scott Wood    2011-12-20  92  
73196cd364a2d9 Scott Wood    2011-12-20  93  	local_irq_save(flags);
188e267ce249b4 Mihai Caraman 2014-09-01  94  	mtspr(SPRN_MAS5, MAS5_SGS | get_lpid(&vcpu_e500->vcpu));
73196cd364a2d9 Scott Wood    2011-12-20 @95  	asm volatile("tlbilxlpid");
73196cd364a2d9 Scott Wood    2011-12-20  96  	mtspr(SPRN_MAS5, 0);
73196cd364a2d9 Scott Wood    2011-12-20  97  	local_irq_restore(flags);
73196cd364a2d9 Scott Wood    2011-12-20  98  }
73196cd364a2d9 Scott Wood    2011-12-20  99  

:::::: The code at line 95 was first introduced by commit
:::::: 73196cd364a2d972d73fa08da9d81ca3215bed68 KVM: PPC: e500mc support

:::::: TO: Scott Wood <scottwood@...escale.com>
:::::: CC: Avi Kivity <avi@...hat.com>

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