* Re: [PATCH v2 6/6] x86/vmware: Add TDX hypercall support
[not found] <20231201232452.220355-7-amakhalov@vmware.com>
@ 2023-12-05 21:04 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-12-05 21:04 UTC (permalink / raw)
To: Alexey Makhalov, linux-kernel, virtualization, hpa, dave.hansen,
bp, mingo, tglx
Cc: llvm, oe-kbuild-all, x86, netdev, richardcochran, linux-input,
dmitry.torokhov, zackr, linux-graphics-maintainer, pv-drivers,
namit, timothym, akaher, jsipek, dri-devel, daniel, airlied,
tzimmermann, mripard, maarten.lankhorst, horms
Hi Alexey,
kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on dtor-input/next dtor-input/for-linus linus/master v6.7-rc4 next-20231205]
[cannot apply to tip/x86/vmware]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Alexey-Makhalov/x86-vmware-Move-common-macros-to-vmware-h/20231202-072821
base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link: https://lore.kernel.org/r/20231201232452.220355-7-amakhalov%40vmware.com
patch subject: [PATCH v2 6/6] x86/vmware: Add TDX hypercall support
config: i386-buildonly-randconfig-005-20231202 (https://download.01.org/0day-ci/archive/20231206/202312060432.8e2xdh6F-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231206/202312060432.8e2xdh6F-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312060432.8e2xdh6F-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/vmwgfx/vmwgfx_msg.c:37:
In file included from drivers/gpu/drm/vmwgfx/vmwgfx_msg_x86.h:38:
>> arch/x86/include/asm/vmware.h:46:46: warning: declaration of 'struct tdx_module_args' will not be visible outside of this function [-Wvisibility]
extern void vmware_tdx_hypercall_args(struct tdx_module_args *args);
^
>> arch/x86/include/asm/vmware.h:61:25: error: variable has incomplete type 'struct tdx_module_args'
struct tdx_module_args args = {
^
arch/x86/include/asm/vmware.h:61:9: note: forward declaration of 'struct tdx_module_args'
struct tdx_module_args args = {
^
1 warning and 1 error generated.
vim +61 arch/x86/include/asm/vmware.h
45
> 46 extern void vmware_tdx_hypercall_args(struct tdx_module_args *args);
47
48 /*
49 * TDCALL[TDG.VP.VMCALL] uses rax (arg0) and rcx (arg2), while the use of
50 * rbp (arg6) is discouraged by the TDX specification. Therefore, we
51 * remap those registers to r12, r13 and r14, respectively.
52 */
53 static inline
54 unsigned long vmware_tdx_hypercall(unsigned long cmd, unsigned long in1,
55 unsigned long in3, unsigned long in4,
56 unsigned long in5, unsigned long in6,
57 uint32_t *out1, uint32_t *out2,
58 uint32_t *out3, uint32_t *out4,
59 uint32_t *out5, uint32_t *out6)
60 {
> 61 struct tdx_module_args args = {
62 .r10 = VMWARE_TDX_VENDOR_LEAF,
63 .r11 = VMWARE_TDX_HCALL_FUNC,
64 .r12 = VMWARE_HYPERVISOR_MAGIC,
65 .r13 = cmd,
66 .rbx = in1,
67 .rdx = in3,
68 .rsi = in4,
69 .rdi = in5,
70 .r14 = in6,
71 };
72
73 vmware_tdx_hypercall_args(&args);
74
75 if (out1)
76 *out1 = args.rbx;
77 if (out2)
78 *out2 = args.r13;
79 if (out3)
80 *out3 = args.rdx;
81 if (out4)
82 *out4 = args.rsi;
83 if (out5)
84 *out5 = args.rdi;
85 if (out6)
86 *out6 = args.r14;
87
88 return args.r12;
89 }
90
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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