linux-kernel - Re: [PATCH v2 4/4] KVM: x86: emulate FXSAVE and FXRSTOR

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Message-ID: <201611030741.7Je7TG1V%fengguang.wu@intel.com>
Date:   Thu, 3 Nov 2016 07:58:34 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Radim Krčmář <rkrcmar@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, Paolo Bonzini <pbonzini@...hat.com>,
        Bandan Das <bsd@...hat.com>, Nadav Amit <nadav.amit@...il.com>
Subject: Re: [PATCH v2 4/4] KVM: x86: emulate FXSAVE and FXRSTOR

Hi Radim,

[auto build test ERROR on kvm/linux-next]
[also build test ERROR on v4.9-rc3 next-20161028]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
[Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on]
[Check https://git-scm.com/docs/git-format-patch for more information]

url:    https://github.com/0day-ci/linux/commits/Radim-Kr-m/KVM-x86-emulate-FXSAVE-and-FXRSTOR/20161103-025333
base:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next
config: x86_64-randconfig-s2-11030650 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   arch/x86/kvm/emulate.c: In function 'em_fxsave':
>> arch/x86/kvm/emulate.c:3931: error: expected string literal before ')' token
   arch/x86/kvm/emulate.c:3934: error: expected string literal before ')' token
   arch/x86/kvm/emulate.c: In function 'fx_load_64bit_xmm':
   arch/x86/kvm/emulate.c:3953: error: expected string literal before ')' token
   arch/x86/kvm/emulate.c: In function 'em_fxrstor':
   arch/x86/kvm/emulate.c:3990: error: expected string literal before ')' token
   arch/x86/kvm/emulate.c:3994: error: expected string literal before ')' token

vim +3931 arch/x86/kvm/emulate.c

  3925			return rc;
  3926	
  3927		ctxt->ops->get_fpu(ctxt);
  3928	
  3929	#ifdef CONFIG_X86_64
  3930		if (ctxt->rex_prefix & (1 << 3))
> 3931			rc = asm_safe("fxsave64 %[fx]", , [fx] "+m"(fx_state) ::);
  3932		else
  3933	#endif
  3934			rc = asm_safe("fxsave %[fx]", , [fx] "+m"(fx_state) ::);

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

Download attachment ".config.gz" of type "application/gzip" (27618 bytes)