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Message-ID: <202410171505.gZbmXuo2-lkp@intel.com>
Date: Thu, 17 Oct 2024 15:42:30 +0800
From: kernel test robot <lkp@...el.com>
To: Nikunj A Dadhania <nikunj@....com>, linux-kernel@...r.kernel.org,
thomas.lendacky@....com, bp@...en8.de, x86@...nel.org,
kvm@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, mingo@...hat.com, tglx@...utronix.de,
dave.hansen@...ux.intel.com, pgonda@...gle.com, seanjc@...gle.com,
pbonzini@...hat.com, nikunj@....com
Subject: Re: [PATCH v12 07/19] x86/sev: Carve out and export SNP guest
messaging init routines
Hi Nikunj,
kernel test robot noticed the following build warnings:
[auto build test WARNING on 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b]
url: https://github.com/intel-lab-lkp/linux/commits/Nikunj-A-Dadhania/virt-sev-guest-Use-AES-GCM-crypto-library/20241009-173734
base: 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b
patch link: https://lore.kernel.org/r/20241009092850.197575-8-nikunj%40amd.com
patch subject: [PATCH v12 07/19] x86/sev: Carve out and export SNP guest messaging init routines
config: x86_64-randconfig-121-20241017 (https://download.01.org/0day-ci/archive/20241017/202410171505.gZbmXuo2-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241017/202410171505.gZbmXuo2-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/202410171505.gZbmXuo2-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> arch/x86/coco/sev/core.c:2663:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct snp_secrets_page *secrets @@ got void [noderef] __iomem * @@
arch/x86/coco/sev/core.c:2663:24: sparse: expected struct snp_secrets_page *secrets
arch/x86/coco/sev/core.c:2663:24: sparse: got void [noderef] __iomem *
>> arch/x86/coco/sev/core.c:2694:22: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct snp_secrets_page *secrets @@
arch/x86/coco/sev/core.c:2694:22: sparse: expected void volatile [noderef] __iomem *addr
arch/x86/coco/sev/core.c:2694:22: sparse: got struct snp_secrets_page *secrets
vim +2663 arch/x86/coco/sev/core.c
2649
2650 struct snp_msg_desc *snp_msg_alloc(void)
2651 {
2652 struct snp_msg_desc *mdesc;
2653
2654 BUILD_BUG_ON(sizeof(struct snp_guest_msg) > PAGE_SIZE);
2655
2656 if (snp_mdesc)
2657 return snp_mdesc;
2658
2659 mdesc = kzalloc(sizeof(struct snp_msg_desc), GFP_KERNEL);
2660 if (!mdesc)
2661 return ERR_PTR(-ENOMEM);
2662
> 2663 mdesc->secrets = ioremap_encrypted(secrets_pa, PAGE_SIZE);
2664 if (!mdesc->secrets)
2665 return ERR_PTR(-ENODEV);
2666
2667 /* Allocate the shared page used for the request and response message. */
2668 mdesc->request = alloc_shared_pages(sizeof(struct snp_guest_msg));
2669 if (!mdesc->request)
2670 goto e_unmap;
2671
2672 mdesc->response = alloc_shared_pages(sizeof(struct snp_guest_msg));
2673 if (!mdesc->response)
2674 goto e_free_request;
2675
2676 mdesc->certs_data = alloc_shared_pages(SEV_FW_BLOB_MAX_SIZE);
2677 if (!mdesc->certs_data)
2678 goto e_free_response;
2679
2680 /* initial the input address for guest request */
2681 mdesc->input.req_gpa = __pa(mdesc->request);
2682 mdesc->input.resp_gpa = __pa(mdesc->response);
2683 mdesc->input.data_gpa = __pa(mdesc->certs_data);
2684
2685 snp_mdesc = mdesc;
2686
2687 return mdesc;
2688
2689 e_free_response:
2690 free_shared_pages(mdesc->response, sizeof(struct snp_guest_msg));
2691 e_free_request:
2692 free_shared_pages(mdesc->request, sizeof(struct snp_guest_msg));
2693 e_unmap:
> 2694 iounmap(mdesc->secrets);
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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