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(envelope-from ) id 1rUlSd-0000CW-2t; Tue, 30 Jan 2024 10:35:36 +0000 Date: Tue, 30 Jan 2024 18:34:34 +0800 From: kernel test robot To: Ard Biesheuvel Cc: oe-kbuild-all@lists.linux.dev Subject: [ardb:x86-pie-for-sev-v3 17/22] arch/x86/kernel/sev.o: warning: objtool: vc_handle_mmio+0x8d: can't find switch jump table Message-ID: <202401301803.kBJrJ2fo-lkp@intel.com> Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git x86-pie-for-sev-v3 head: e808f1d9ecc40f701330869bdb4f8ce0ad23c774 commit: 842c40c07fd9f102438449c58bbfd8a1a640fbab [17/22] x86/sev: Use PIC codegen for early SEV startup code config: x86_64-randconfig-161-20240130 (https://download.01.org/0day-ci/archive/20240130/202401301803.kBJrJ2fo-lkp@intel.com/config) compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240130/202401301803.kBJrJ2fo-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202401301803.kBJrJ2fo-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/sev.o: warning: objtool: vc_handle_mmio+0x8d: can't find switch jump table objdump-func vmlinux.o vc_handle_mmio: 0000 0000000000061880 : 0000 61880: 41 57 push %r15 0002 61882: 41 56 push %r14 0004 61884: 41 55 push %r13 0006 61886: 41 54 push %r12 0008 61888: 4c 8d 66 08 lea 0x8(%rsi),%r12 000c 6188c: 55 push %rbp 000d 6188d: 53 push %rbx 000e 6188e: 48 89 f5 mov %rsi,%rbp 0011 61891: 49 89 fd mov %rdi,%r13 0014 61894: 4c 89 e7 mov %r12,%rdi 0017 61897: 48 83 ec 28 sub $0x28,%rsp 001b 6189b: 48 8d 74 24 1c lea 0x1c(%rsp),%rsi 0020 618a0: c7 44 24 1c 00 00 00 00 movl $0x0,0x1c(%rsp) 0028 618a8: e8 00 00 00 00 call 618ad 618a9: R_X86_64_PLT32 insn_decode_mmio-0x4 002d 618ad: 89 c3 mov %eax,%ebx 002f 618af: 85 db test %ebx,%ebx 0031 618b1: 75 0b jne 618be 0033 618b3: 41 bf 03 00 00 00 mov $0x3,%r15d 0039 618b9: e9 93 03 00 00 jmp 61c51 003e 618be: 89 d8 mov %ebx,%eax 0040 618c0: 48 8b 7d 00 mov 0x0(%rbp),%rdi 0044 618c4: 83 e0 fb and $0xfffffffb,%eax 0047 618c7: 83 f8 02 cmp $0x2,%eax 004a 618ca: 74 17 je 618e3 004c 618cc: 48 89 fe mov %rdi,%rsi 004f 618cf: 4c 89 e7 mov %r12,%rdi 0052 618d2: e8 00 00 00 00 call 618d7 618d3: R_X86_64_PLT32 insn_get_modrm_reg_ptr-0x4 0057 618d7: 48 85 c0 test %rax,%rax 005a 618da: 49 89 c6 mov %rax,%r14 005d 618dd: 74 d4 je 618b3 005f 618df: 48 8b 7d 00 mov 0x0(%rbp),%rdi 0063 618e3: f6 87 88 00 00 00 03 testb $0x3,0x88(%rdi) 006a 618ea: 41 bf 01 00 00 00 mov $0x1,%r15d 0070 618f0: 0f 85 5b 03 00 00 jne 61c51 0076 618f6: 83 fb 06 cmp $0x6,%ebx 0079 618f9: 0f 87 4c 03 00 00 ja 61c4b 007f 618ff: 48 8d 15 00 00 00 00 lea 0x0(%rip),%rdx # 61906 61902: R_X86_64_PC32 .rodata+0x1037c 0086 61906: 48 63 04 9a movslq (%rdx,%rbx,4),%rax 008a 6190a: 48 01 d0 add %rdx,%rax 008d 6190d: ff e0 jmp *%rax 008f 6190f: 44 8b 64 24 1c mov 0x1c(%rsp),%r12d 0094 61914: 4d 8d bd 00 08 00 00 lea 0x800(%r13),%r15 009b 6191b: 49 81 fc f0 07 00 00 cmp $0x7f0,%r12 00a2 61922: 4c 89 e3 mov %r12,%rbx 00a5 61925: 76 35 jbe 6195c 00a7 61927: 80 3d 00 00 00 00 00 cmpb $0x0,0x0(%rip) # 6192e 61929: R_X86_64_PC32 .data.once+0x4b 00ae 6192e: 75 2c jne 6195c 00b0 61930: c6 05 00 00 00 00 01 movb $0x1,0x0(%rip) # 61937 61932: R_X86_64_PC32 .data.once+0x4b 00b7 61937: 90 nop 00b8 61938: 48 8d 15 00 00 00 00 lea 0x0(%rip),%rdx # 6193f 6193b: R_X86_64_PC32 .LC17-0x4 00bf 6193f: 48 8d 3d 00 00 00 00 lea 0x0(%rip),%rdi # 61946 61942: R_X86_64_PC32 .LC18-0x4 00c6 61946: b9 f0 07 00 00 mov $0x7f0,%ecx 00cb 6194b: 4c 89 e6 mov %r12,%rsi 00ce 6194e: e8 00 00 00 00 call 61953 6194f: R_X86_64_PLT32 __warn_printk-0x4 00d3 61953: 90 nop 00d4 61954: 0f 0b ud2 00d6 61956: 90 nop 00d7 61957: 90 nop 00d8 61958: 8b 5c 24 1c mov 0x1c(%rsp),%ebx 00dc 6195c: 4c 89 e2 mov %r12,%rdx 00df 6195f: 4c 89 f6 mov %r14,%rsi 00e2 61962: 4c 89 ff mov %r15,%rdi 00e5 61965: eb 5a jmp 619c1 00e7 61967: 44 8b 64 24 1c mov 0x1c(%rsp),%r12d 00ec 6196c: 4d 8d b5 00 08 00 00 lea 0x800(%r13),%r14 00f3 61973: 4c 8d 7d 40 lea 0x40(%rbp),%r15 00f7 61977: 49 81 fc f0 07 00 00 cmp $0x7f0,%r12 00fe 6197e: 4c 89 e3 mov %r12,%rbx 0101 61981: 76 35 jbe 619b8 0103 61983: 80 3d 00 00 00 00 00 cmpb $0x0,0x0(%rip) # 6198a 61985: R_X86_64_PC32 .data.once+0x4a 010a 6198a: 75 2c jne 619b8 010c 6198c: c6 05 00 00 00 00 01 movb $0x1,0x0(%rip) # 61993 6198e: R_X86_64_PC32 .data.once+0x4a 0113 61993: 90 nop 0114 61994: 48 8d 15 00 00 00 00 lea 0x0(%rip),%rdx # 6199b 61997: R_X86_64_PC32 .LC19-0x4 011b 6199b: 48 8d 3d 00 00 00 00 lea 0x0(%rip),%rdi # 619a2 6199e: R_X86_64_PC32 .LC18-0x4 0122 619a2: b9 f0 07 00 00 mov $0x7f0,%ecx 0127 619a7: 4c 89 e6 mov %r12,%rsi 012a 619aa: e8 00 00 00 00 call 619af 619ab: R_X86_64_PLT32 __warn_printk-0x4 012f 619af: 90 nop 0130 619b0: 0f 0b ud2 0132 619b2: 90 nop 0133 619b3: 90 nop 0134 619b4: 8b 5c 24 1c mov 0x1c(%rsp),%ebx 0138 619b8: 4c 89 e2 mov %r12,%rdx 013b 619bb: 4c 89 fe mov %r15,%rsi 013e 619be: 4c 89 f7 mov %r14,%rdi 0141 619c1: e8 00 00 00 00 call 619c6 619c2: R_X86_64_PLT32 memcpy-0x4 0146 619c6: 31 c9 xor %ecx,%ecx 0148 619c8: 89 da mov %ebx,%edx 014a 619ca: 48 89 ee mov %rbp,%rsi 014d 619cd: 4c 89 ef mov %r13,%rdi 0150 619d0: e8 eb fc ff ff call 616c0 0155 619d5: 41 89 c7 mov %eax,%r15d 0158 619d8: e9 74 02 00 00 jmp 61c51 015d 619dd: 8b 54 24 1c mov 0x1c(%rsp),%edx 0161 619e1: b9 01 00 00 00 mov $0x1,%ecx 0166 619e6: 48 89 ee mov %rbp,%rsi 0169 619e9: 4c 89 ef mov %r13,%rdi 016c 619ec: e8 cf fc ff ff call 616c0 0171 619f1: 85 c0 test %eax,%eax 0173 619f3: 41 89 c7 mov %eax,%r15d 0176 619f6: 0f 85 55 02 00 00 jne 61c51 017c 619fc: 8b 54 24 1c mov 0x1c(%rsp),%edx 0180 61a00: 83 fa 04 cmp $0x4,%edx 0183 61a03: 75 0b jne 61a10 0185 61a05: 49 c7 06 00 00 00 00 movq $0x0,(%r14) 018c 61a0c: 8b 54 24 1c mov 0x1c(%rsp),%edx 0190 61a10: 49 8d b5 00 08 00 00 lea 0x800(%r13),%rsi 0197 61a17: 4c 89 f7 mov %r14,%rdi 019a 61a1a: e8 00 00 00 00 call 61a1f 61a1b: R_X86_64_PLT32 memcpy-0x4 019f 61a1f: e9 2d 02 00 00 jmp 61c51 01a4 61a24: 8b 54 24 1c mov 0x1c(%rsp),%edx 01a8 61a28: b9 01 00 00 00 mov $0x1,%ecx 01ad 61a2d: 48 89 ee mov %rbp,%rsi 01b0 61a30: 4c 89 ef mov %r13,%rdi 01b3 61a33: e8 88 fc ff ff call 616c0 01b8 61a38: 85 c0 test %eax,%eax 01ba 61a3a: 41 89 c7 mov %eax,%r15d 01bd 61a3d: 0f 85 0e 02 00 00 jne 61c51 01c3 61a43: 0f b6 45 58 movzbl 0x58(%rbp),%eax 01c7 61a47: 83 f8 08 cmp $0x8,%eax 01ca 61a4a: 73 2c jae 61a78 01cc 61a4c: a8 04 test $0x4,%al 01ce 61a4e: 74 12 je 61a62 01d0 61a50: 41 c7 06 00 00 00 00 movl $0x0,(%r14) 01d7 61a57: 41 c7 44 06 fc 00 00 00 00 movl $0x0,-0x4(%r14,%rax,1) 01e0 61a60: eb aa jmp 61a0c 01e2 61a62: 85 c0 test %eax,%eax 01e4 61a64: 74 a6 je 61a0c 01e6 61a66: a8 02 test $0x2,%al 01e8 61a68: 41 c6 06 00 movb $0x0,(%r14) 01ec 61a6c: 74 9e je 61a0c 01ee 61a6e: 66 41 c7 44 06 fe 00 00 movw $0x0,-0x2(%r14,%rax,1) 01f6 61a76: eb 94 jmp 61a0c 01f8 61a78: 49 8d 7e 08 lea 0x8(%r14),%rdi 01fc 61a7c: 4c 89 f2 mov %r14,%rdx 01ff 61a7f: 49 c7 06 00 00 00 00 movq $0x0,(%r14) 0206 61a86: 49 c7 44 06 f8 00 00 00 00 movq $0x0,-0x8(%r14,%rax,1) 020f 61a8f: 48 83 e7 f8 and $0xfffffffffffffff8,%rdi 0213 61a93: 48 29 fa sub %rdi,%rdx 0216 61a96: 01 d0 add %edx,%eax 0218 61a98: c1 e8 03 shr $0x3,%eax 021b 61a9b: 89 c1 mov %eax,%ecx 021d 61a9d: 31 c0 xor %eax,%eax 021f 61a9f: f3 48 ab rep stos %rax,%es:(%rdi) 0222 61aa2: e9 65 ff ff ff jmp 61a0c 0227 61aa7: 8b 54 24 1c mov 0x1c(%rsp),%edx 022b 61aab: b9 01 00 00 00 mov $0x1,%ecx 0230 61ab0: 48 89 ee mov %rbp,%rsi 0233 61ab3: 4c 89 ef mov %r13,%rdi 0236 61ab6: e8 05 fc ff ff call 616c0 023b 61abb: 85 c0 test %eax,%eax 023d 61abd: 41 89 c7 mov %eax,%r15d 0240 61ac0: 0f 85 8b 01 00 00 jne 61c51 0246 61ac6: 83 7c 24 1c 01 cmpl $0x1,0x1c(%rsp) 024b 61acb: 75 0d jne 61ada 024d 61acd: 41 0f b6 85 00 08 00 00 movzbl 0x800(%r13),%eax 0255 61ad5: c0 f8 07 sar $0x7,%al 0258 61ad8: eb 0c jmp 61ae6 025a 61ada: 41 0f b7 85 00 08 00 00 movzwl 0x800(%r13),%eax 0262 61ae2: 66 c1 f8 0f sar $0xf,%ax 0266 61ae6: 0f b6 55 58 movzbl 0x58(%rbp),%edx 026a 61aea: 0f b6 c0 movzbl %al,%eax 026d 61aed: 48 b9 01 01 01 01 01 01 01 01 movabs $0x101010101010101,%rcx 0277 61af7: 48 0f af c1 imul %rcx,%rax 027b 61afb: 83 fa 08 cmp $0x8,%edx 027e 61afe: 73 31 jae 61b31 0280 61b00: f6 c2 04 test $0x4,%dl 0283 61b03: 74 0d je 61b12 0285 61b05: 41 89 06 mov %eax,(%r14) 0288 61b08: 41 89 44 16 fc mov %eax,-0x4(%r14,%rdx,1) 028d 61b0d: e9 fa fe ff ff jmp 61a0c 0292 61b12: 85 d2 test %edx,%edx 0294 61b14: 0f 84 f2 fe ff ff je 61a0c 029a 61b1a: f6 c2 02 test $0x2,%dl 029d 61b1d: 41 88 06 mov %al,(%r14) 02a0 61b20: 0f 84 e6 fe ff ff je 61a0c 02a6 61b26: 66 41 89 44 16 fe mov %ax,-0x2(%r14,%rdx,1) 02ac 61b2c: e9 db fe ff ff jmp 61a0c 02b1 61b31: 49 8d 7e 08 lea 0x8(%r14),%rdi 02b5 61b35: 4c 89 f1 mov %r14,%rcx 02b8 61b38: 49 89 06 mov %rax,(%r14) 02bb 61b3b: 49 89 44 16 f8 mov %rax,-0x8(%r14,%rdx,1) 02c0 61b40: 48 83 e7 f8 and $0xfffffffffffffff8,%rdi 02c4 61b44: 48 29 f9 sub %rdi,%rcx 02c7 61b47: 01 ca add %ecx,%edx 02c9 61b49: c1 ea 03 shr $0x3,%edx 02cc 61b4c: 89 d1 mov %edx,%ecx 02ce 61b4e: f3 48 ab rep stos %rax,%es:(%rdi) 02d1 61b51: e9 b6 fe ff ff jmp 61a0c 02d6 61b56: be 04 00 00 00 mov $0x4,%esi 02db 61b5b: 44 8b 6c 24 1c mov 0x1c(%rsp),%r13d 02e0 61b60: e8 00 00 00 00 call 61b65 61b61: R_X86_64_PLT32 insn_get_seg_base-0x4 02e5 61b65: 48 8b 7d 00 mov 0x0(%rbp),%rdi 02e9 61b69: 48 89 c3 mov %rax,%rbx 02ec 61b6c: be 05 00 00 00 mov $0x5,%esi 02f1 61b71: e8 00 00 00 00 call 61b76 61b72: R_X86_64_PLT32 insn_get_seg_base-0x4 02f6 61b76: 48 83 fb ff cmp $0xffffffffffffffff,%rbx 02fa 61b7a: 74 06 je 61b82 02fc 61b7c: 48 83 f8 ff cmp $0xffffffffffffffff,%rax 0300 61b80: 75 1e jne 61ba0 0302 61b82: 48 c7 45 78 0d 00 00 00 movq $0xd,0x78(%rbp) 030a 61b8a: 48 c7 85 80 00 00 00 00 00 00 00 movq $0x0,0x80(%rbp) 0315 61b95: 41 bf 04 00 00 00 mov $0x4,%r15d 031b 61b9b: e9 b1 00 00 00 jmp 61c51 0320 61ba0: 48 89 44 24 08 mov %rax,0x8(%rsp) 0325 61ba5: 48 8b 45 00 mov 0x0(%rbp),%rax 0329 61ba9: 4c 8d 74 24 20 lea 0x20(%rsp),%r14 032e 61bae: 45 89 ea mov %r13d,%r10d 0331 61bb1: 48 89 ef mov %rbp,%rdi 0334 61bb4: 4c 89 f2 mov %r14,%rdx 0337 61bb7: 4c 89 14 24 mov %r10,(%rsp) 033b 61bbb: 48 03 58 68 add 0x68(%rax),%rbx 033f 61bbf: 48 8b 48 70 mov 0x70(%rax),%rcx 0343 61bc3: 48 89 4c 24 10 mov %rcx,0x10(%rsp) 0348 61bc8: 4c 89 d1 mov %r10,%rcx 034b 61bcb: 48 89 de mov %rbx,%rsi 034e 61bce: e8 ad f1 ff ff call 60d80 0353 61bd3: 85 c0 test %eax,%eax 0355 61bd5: 41 89 c7 mov %eax,%r15d 0358 61bd8: 4c 8b 14 24 mov (%rsp),%r10 035c 61bdc: 4c 8b 44 24 08 mov 0x8(%rsp),%r8 0361 61be1: 75 6e jne 61c51 0363 61be3: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 0368 61be8: 4c 89 d1 mov %r10,%rcx 036b 61beb: 4c 89 f2 mov %r14,%rdx 036e 61bee: 48 89 ef mov %rbp,%rdi 0371 61bf1: 4c 01 c6 add %r8,%rsi 0374 61bf4: e8 c7 f3 ff ff call 60fc0 0379 61bf9: 85 c0 test %eax,%eax 037b 61bfb: 41 89 c7 mov %eax,%r15d 037e 61bfe: 75 51 jne 61c51 0380 61c00: 48 8b 55 00 mov 0x0(%rbp),%rdx 0384 61c04: 44 89 e8 mov %r13d,%eax 0387 61c07: 4c 89 e7 mov %r12,%rdi 038a 61c0a: f7 d8 neg %eax 038c 61c0c: f6 82 91 00 00 00 04 testb $0x4,0x91(%rdx) 0393 61c13: 41 0f 44 c5 cmove %r13d,%eax 0397 61c17: 48 98 cltq 0399 61c19: 48 01 42 68 add %rax,0x68(%rdx) 039d 61c1d: 48 8b 55 00 mov 0x0(%rbp),%rdx 03a1 61c21: 48 01 42 70 add %rax,0x70(%rdx) 03a5 61c25: e8 00 00 00 00 call 61c2a 61c26: R_X86_64_PLT32 insn_has_rep_prefix-0x4 03aa 61c2a: 84 c0 test %al,%al 03ac 61c2c: 74 23 je 61c51 03ae 61c2e: 48 8b 45 00 mov 0x0(%rbp),%rax 03b2 61c32: 48 83 68 58 01 subq $0x1,0x58(%rax) 03b7 61c37: 48 8b 45 00 mov 0x0(%rbp),%rax 03bb 61c3b: 48 83 78 58 00 cmpq $0x0,0x58(%rax) 03c0 61c40: b8 05 00 00 00 mov $0x5,%eax 03c5 61c45: 44 0f 45 f8 cmovne %eax,%r15d 03c9 61c49: eb 06 jmp 61c51 03cb 61c4b: 41 bf 01 00 00 00 mov $0x1,%r15d 03d1 61c51: 48 83 c4 28 add $0x28,%rsp 03d5 61c55: 44 89 f8 mov %r15d,%eax 03d8 61c58: 5b pop %rbx 03d9 61c59: 5d pop %rbp 03da 61c5a: 41 5c pop %r12 03dc 61c5c: 41 5d pop %r13 03de 61c5e: 41 5e pop %r14 03e0 61c60: 41 5f pop %r15 03e2 61c62: c3 ret 03e3 61c63: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 03ee 61c6e: 66 66 2e 0f 1f 84 00 00 00 00 00 data16 cs nopw 0x0(%rax,%rax,1) 03f9 61c79: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki