* [tip:x86/tdx 3/7] vmlinux.o: warning: objtool: __tdx_hypercall+0x7f: return with modified stack frame
@ 2023-01-28 16:53 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-01-28 16:53 UTC (permalink / raw)
To: Kirill A. Shutemov; +Cc: oe-kbuild-all, linux-kernel, x86, Dave Hansen
Hi Kirill,
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/tip/tip.git x86/tdx
head: 8de62af018cc9262649d7688f7eb1409b2d8f594
commit: c30c4b2555ba93b845559a036293fcaf7ffd2b82 [3/7] x86/tdx: Refactor __tdx_hypercall() to allow pass down more arguments
config: x86_64-randconfig-r035-20230123 (https://download.01.org/0day-ci/archive/20230129/202301290027.sxK9YqsA-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=c30c4b2555ba93b845559a036293fcaf7ffd2b82
git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
git fetch --no-tags tip x86/tdx
git checkout c30c4b2555ba93b845559a036293fcaf7ffd2b82
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=x86_64 olddefconfig
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> vmlinux.o: warning: objtool: __tdx_hypercall+0x7f: return with modified stack frame
vmlinux.o: warning: objtool: vmw_port_hb_in+0x2b2: stack state mismatch: cfa1=5+16 cfa2=4+8
vmlinux.o: warning: objtool: vmw_port_hb_out+0x2c6: stack state mismatch: cfa1=5+16 cfa2=4+8
objdump-func vmlinux.o __tdx_hypercall:
0000 0000000000005ae0 <__tdx_hypercall>:
0000 5ae0: f3 0f 1e fa endbr64
0004 5ae4: 55 push %rbp
0005 5ae5: 48 89 e5 mov %rsp,%rbp
0008 5ae8: 41 57 push %r15
000a 5aea: 41 56 push %r14
000c 5aec: 41 55 push %r13
000e 5aee: 41 54 push %r12
0010 5af0: 55 push %rbp
0011 5af1: 48 89 f8 mov %rdi,%rax
0014 5af4: 48 89 f5 mov %rsi,%rbp
0017 5af7: 4c 8b 50 10 mov 0x10(%rax),%r10
001b 5afb: 4c 8b 58 18 mov 0x18(%rax),%r11
001f 5aff: 4c 8b 60 20 mov 0x20(%rax),%r12
0023 5b03: 4c 8b 68 28 mov 0x28(%rax),%r13
0027 5b07: 4c 8b 70 30 mov 0x30(%rax),%r14
002b 5b0b: 4c 8b 78 38 mov 0x38(%rax),%r15
002f 5b0f: 50 push %rax
0030 5b10: 31 c0 xor %eax,%eax
0032 5b12: b9 00 fc 00 00 mov $0xfc00,%ecx
0037 5b17: 48 f7 c5 02 00 00 00 test $0x2,%rbp
003e 5b1e: 74 01 je 5b21 <__tdx_hypercall+0x41>
0040 5b20: fb sti
0041 5b21: 66 0f 01 cc tdcall
0045 5b25: 48 85 c0 test %rax,%rax
0048 5b28: 75 36 jne 5b60 <__tdx_hypercall+0x80>
004a 5b2a: 58 pop %rax
004b 5b2b: 48 f7 c5 01 00 00 00 test $0x1,%rbp
0052 5b32: 74 18 je 5b4c <__tdx_hypercall+0x6c>
0054 5b34: 4c 89 50 10 mov %r10,0x10(%rax)
0058 5b38: 4c 89 58 18 mov %r11,0x18(%rax)
005c 5b3c: 4c 89 60 20 mov %r12,0x20(%rax)
0060 5b40: 4c 89 68 28 mov %r13,0x28(%rax)
0064 5b44: 4c 89 70 30 mov %r14,0x30(%rax)
0068 5b48: 4c 89 78 38 mov %r15,0x38(%rax)
006c 5b4c: 4c 89 d0 mov %r10,%rax
006f 5b4f: 45 31 d2 xor %r10d,%r10d
0072 5b52: 45 31 db xor %r11d,%r11d
0075 5b55: 5d pop %rbp
0076 5b56: 41 5c pop %r12
0078 5b58: 41 5d pop %r13
007a 5b5a: 41 5e pop %r14
007c 5b5c: 41 5f pop %r15
007e 5b5e: 5d pop %rbp
007f 5b5f: c3 ret
0080 5b60: e8 00 00 00 00 call 5b65 <__tdx_hypercall+0x85> 5b61: R_X86_64_PLT32 __tdx_hypercall_failed-0x4
0085 5b65: eb f9 jmp 5b60 <__tdx_hypercall+0x80>
0087 5b67: 66 0f 1f 84 00 00 00 00 00 nopw 0x0(%rax,%rax,1)
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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