linux-kernel - [intel-tdx:kvm-upstream-workaround 186/361] arch/x86/virt/vmx/tdx/seamcall.S:53: Error: invalid character '(' in mnemonic

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Date:   Sat, 7 May 2022 07:01:35 +0800
From:   kernel test robot <lkp@...el.com>
To:     Isaku Yamahata <isaku.yamahata@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Sean Christopherson <sean.j.christopherson@...el.com>
Subject: [intel-tdx:kvm-upstream-workaround 186/361]
 arch/x86/virt/vmx/tdx/seamcall.S:53: Error: invalid character '(' in
 mnemonic

tree:   https://github.com/intel/tdx.git kvm-upstream-workaround
head:   3b5b338cdf10dca7a2435d1f86b2dd9f1a3ad833
commit: b4cfd2e1b4daf91899a95ab3e2a4e2ea1d25773c [186/361] KVM: TDX: Add C wrapper functions for SEAMCALLs to the TDX module
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220507/202205070603.bsmYiwOS-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
        # https://github.com/intel/tdx/commit/b4cfd2e1b4daf91899a95ab3e2a4e2ea1d25773c
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx kvm-upstream-workaround
        git checkout b4cfd2e1b4daf91899a95ab3e2a4e2ea1d25773c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

Note: the intel-tdx/kvm-upstream-workaround HEAD 3b5b338cdf10dca7a2435d1f86b2dd9f1a3ad833 builds fine.
      It only hurts bisectability.

All errors (new ones prefixed by >>):

   arch/x86/virt/vmx/tdx/seamcall.S: Assembler messages:
>> arch/x86/virt/vmx/tdx/seamcall.S:53: Error: invalid character '(' in mnemonic


vim +53 arch/x86/virt/vmx/tdx/seamcall.S

     6	
     7	/*
     8	 * __seamcall()  - Host-side interface functions to SEAM software module
     9	 *		   (the P-SEAMLDR or the TDX module)
    10	 *
    11	 * Transform function call register arguments into the SEAMCALL register
    12	 * ABI.  Return TDX_SEAMCALL_VMFAILINVALID, or the completion status of
    13	 * the SEAMCALL.  Additional output operands are saved in @out (if it is
    14	 * provided by caller).
    15	 *
    16	 *-------------------------------------------------------------------------
    17	 * SEAMCALL ABI:
    18	 *-------------------------------------------------------------------------
    19	 * Input Registers:
    20	 *
    21	 * RAX                 - SEAMCALL Leaf number.
    22	 * RCX,RDX,R8-R9       - SEAMCALL Leaf specific input registers.
    23	 *
    24	 * Output Registers:
    25	 *
    26	 * RAX                 - SEAMCALL completion status code.
    27	 * RCX,RDX,R8-R11      - SEAMCALL Leaf specific output registers.
    28	 *
    29	 *-------------------------------------------------------------------------
    30	 *
    31	 * __seamcall() function ABI:
    32	 *
    33	 * @fn  (RDI)          - SEAMCALL Leaf number, moved to RAX
    34	 * @rcx (RSI)          - Input parameter 1, moved to RCX
    35	 * @rdx (RDX)          - Input parameter 2, moved to RDX
    36	 * @r8  (RCX)          - Input parameter 3, moved to R8
    37	 * @r9  (R8)           - Input parameter 4, moved to R9
    38	 *
    39	 * @out (R9)           - struct tdx_module_output pointer
    40	 *                       stored temporarily in R12 (not
    41	 *                       used by the P-SEAMLDR or the TDX
    42	 *			 module). It can be NULL.
    43	 *
    44	 * Return (via RAX) the completion status of the SEAMCALL, or
    45	 * TDX_SEAMCALL_VMFAILINVALID.
    46	 */
    47	SYM_FUNC_START(__seamcall)
    48		FRAME_BEGIN
    49		TDX_MODULE_CALL host=1
    50		FRAME_END
    51		ret
    52	SYM_FUNC_END(__seamcall)
  > 53	EXPORT_SYMBOL_GPL(__seamcall)

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