linux-kernel - Re: [PATCH v2 11/12] x86/paravirt: Don't use pv

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Message-ID: <8c99285f-3268-49b5-a7c3-028761f7ada4@suse.com>
Date: Wed, 1 Oct 2025 07:48:38 +0200
From: Jürgen Groß <jgross@...e.com>
To: kernel test robot <lkp@...el.com>, linux-kernel@...r.kernel.org,
 x86@...nel.org, virtualization@...ts.linux.dev
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, xin@...or.com,
 Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 Borislav Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
 "H. Peter Anvin" <hpa@...or.com>, Ajay Kaher <ajay.kaher@...adcom.com>,
 Alexey Makhalov <alexey.makhalov@...adcom.com>,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>,
 Boris Ostrovsky <boris.ostrovsky@...cle.com>, xen-devel@...ts.xenproject.org
Subject: Re: [PATCH v2 11/12] x86/paravirt: Don't use pv_ops vector for MSR
 access functions

On 30.09.25 23:27, kernel test robot wrote:
> Hi Juergen,
> 
> kernel test robot noticed the following build errors:
> 
> [auto build test ERROR on tip/x86/core]
> [also build test ERROR on linus/master v6.17]
> [cannot apply to kvm/queue kvm/next tip/master kvm/linux-next tip/auto-latest next-20250929]
> [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/Juergen-Gross/coco-tdx-Rename-MSR-access-helpers/20250930-150753
> base:   tip/x86/core
> patch link:    https://lore.kernel.org/r/20250930070356.30695-12-jgross%40suse.com
> patch subject: [PATCH v2 11/12] x86/paravirt: Don't use pv_ops vector for MSR access functions
> config: x86_64-buildonly-randconfig-001-20251001 (https://download.01.org/0day-ci/archive/20251001/202510010555.InsgYDTd-lkp@intel.com/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251001/202510010555.InsgYDTd-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@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202510010555.InsgYDTd-lkp@intel.com/
> 
> All errors (new ones prefixed by >>):
> 
>     In file included from arch/x86/kernel/asm-offsets.c:9:
>     In file included from include/linux/crypto.h:18:
>     In file included from include/linux/slab.h:16:
>     In file included from include/linux/gfp.h:7:
>     In file included from include/linux/mmzone.h:22:
>     In file included from include/linux/mm_types.h:16:
>     In file included from include/linux/uprobes.h:18:
>     In file included from include/linux/timer.h:6:
>     In file included from include/linux/ktime.h:25:
>     In file included from include/linux/jiffies.h:10:
>     In file included from include/linux/time.h:60:
>     In file included from include/linux/time32.h:13:
>     In file included from include/linux/timex.h:67:
>     In file included from arch/x86/include/asm/timex.h:6:
>     In file included from arch/x86/include/asm/tsc.h:11:
>>> arch/x86/include/asm/msr.h:327:10: fatal error: 'asm/xen/msr.h' file not found
>       327 | #include <asm/xen/msr.h>
>           |          ^~~~~~~~~~~~~~~
>     1 error generated.
>     make[3]: *** [scripts/Makefile.build:182: arch/x86/kernel/asm-offsets.s] Error 1 shuffle=3471495288
>     make[3]: Target 'prepare' not remade because of errors.
>     make[2]: *** [Makefile:1282: prepare0] Error 2 shuffle=3471495288
>     make[2]: Target 'prepare' not remade because of errors.
>     make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=3471495288
>     make[1]: Target 'prepare' not remade because of errors.
>     make: *** [Makefile:248: __sub-make] Error 2 shuffle=3471495288
>     make: Target 'prepare' not remade because of errors.
> 
> 
> vim +327 arch/x86/include/asm/msr.h
> 
>     325	
>     326	#ifdef CONFIG_XEN_PV
>   > 327	#include <asm/xen/msr.h>
>     328	
> 

Uh, I forgot to "git add" that new header file. Will be corrected in V3.


Juergen

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