* [kvm:kvm-coco-queue 118/186] arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: incorrect type in argument 1 (different address spaces)
@ 2024-11-01 2:51 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-11-01 2:51 UTC (permalink / raw)
To: Isaku Yamahata
Cc: oe-kbuild-all, kvm, Farrah Chen, Paolo Bonzini, Kai Huang,
Yan Zhao, Rick Edgecombe
tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git kvm-coco-queue
head: 49c492a89914b02fa5011d9ea9848318c6c98dd9
commit: 8c503164d3c974ae4ae50e75867b3563e983d267 [118/186] KVM: x86/tdp_mmu: Propagate building mirror page tables
config: x86_64-randconfig-123-20241101 (https://download.01.org/0day-ci/archive/20241101/202411011026.TPHQXlbi-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/20241101/202411011026.TPHQXlbi-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/202411011026.TPHQXlbi-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile *v @@ got unsigned long long [noderef] [usertype] __rcu *__ai_ptr @@
arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: expected void const volatile *v
arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: got unsigned long long [noderef] [usertype] __rcu *__ai_ptr
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: cast removes address space '__rcu' of expression
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: cast removes address space '__rcu' of expression
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: cast removes address space '__rcu' of expression
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: cast removes address space '__rcu' of expression
>> arch/x86/kvm/mmu/tdp_mmu.c:746:29: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:746:29: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:746:29: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c:1241:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[addressable] [usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:1241:25: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:1241:25: sparse: got unsigned long long [noderef] [usertype] __rcu *[addressable] [usertype] sptep
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: dereference of noderef expression
>> arch/x86/kvm/mmu/tdp_mmu.c:474:14: sparse: sparse: dereference of noderef expression
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c: note: in included file (through include/linux/rbtree.h, include/linux/mm_types.h, include/linux/mmzone.h, ...):
include/linux/rcupdate.h:880:25: sparse: sparse: context imbalance in '__tdp_mmu_zap_root' - unexpected unlock
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c:1524:33: sparse: sparse: context imbalance in 'tdp_mmu_split_huge_pages_root' - unexpected unlock
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long [usertype] *sptep @@ got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep @@
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: expected unsigned long long [usertype] *sptep
arch/x86/kvm/mmu/tdp_mmu.c:610:33: sparse: got unsigned long long [noderef] [usertype] __rcu *[usertype] sptep
vim +474 arch/x86/kvm/mmu/tdp_mmu.c
455
456 static int __must_check set_external_spte_present(struct kvm *kvm, tdp_ptep_t sptep,
457 gfn_t gfn, u64 old_spte,
458 u64 new_spte, int level)
459 {
460 bool was_present = is_shadow_present_pte(old_spte);
461 bool is_present = is_shadow_present_pte(new_spte);
462 bool is_leaf = is_present && is_last_spte(new_spte, level);
463 kvm_pfn_t new_pfn = spte_to_pfn(new_spte);
464 int ret = 0;
465
466 KVM_BUG_ON(was_present, kvm);
467
468 lockdep_assert_held(&kvm->mmu_lock);
469 /*
470 * We need to lock out other updates to the SPTE until the external
471 * page table has been modified. Use FROZEN_SPTE similar to
472 * the zapping case.
473 */
> 474 if (!try_cmpxchg64(sptep, &old_spte, FROZEN_SPTE))
475 return -EBUSY;
476
477 /*
478 * Use different call to either set up middle level
479 * external page table, or leaf.
480 */
481 if (is_leaf) {
482 ret = static_call(kvm_x86_set_external_spte)(kvm, gfn, level, new_pfn);
483 } else {
484 void *external_spt = get_external_spt(gfn, new_spte, level);
485
486 KVM_BUG_ON(!external_spt, kvm);
487 ret = static_call(kvm_x86_link_external_spt)(kvm, gfn, level, external_spt);
488 }
489 if (ret)
490 __kvm_tdp_mmu_write_spte(sptep, old_spte);
491 else
492 __kvm_tdp_mmu_write_spte(sptep, new_spte);
493 return ret;
494 }
495
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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