tree:   https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
head:   3afb84581509b8d28979d15b5d727366efb3c8e5
commit: 1336c692abad5a737dd6d18b30fae2e2183f73f7 [153/154] KVM: x86/mmu: Fast invalidation for TDP MMU
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=1336c692abad5a737dd6d18b30fae2e2183f73f7
        git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git
        git fetch --no-tags kvm queue
        git checkout 1336c692abad5a737dd6d18b30fae2e2183f73f7
        # save the attached .config to linux build tree
        make W=1 W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/cpumask.h:10,
                    from include/linux/mm_types_task.h:14,
                    from include/linux/mm_types.h:5,
                    from arch/x86/kvm/irq.h:13,
                    from arch/x86/kvm/mmu/mmu.c:18:
   arch/x86/kvm/mmu/mmu.c: In function 'kvm_mmu_zap_all_fast':
>> arch/x86/kvm/mmu/mmu.c:5443:39: error: 'struct kvm_arch' has no member named 'tdp_mmu_roots'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |                                       ^
   include/linux/kernel.h:708:26: note: in definition of macro 'container_of'
     708 |  void *__mptr = (void *)(ptr);     \
         |                          ^~~
   include/linux/list.h:522:2: note: in expansion of macro 'list_entry'
     522 |  list_entry((ptr)->next, type, member)
         |  ^~~~~~~~~~
   include/linux/list.h:628:13: note: in expansion of macro 'list_first_entry'
     628 |  for (pos = list_first_entry(head, typeof(*pos), member); \
         |             ^~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/mmu.c:5443:3: note: in expansion of macro 'list_for_each_entry'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |   ^~~~~~~~~~~~~~~~~~~
   In file included from <command-line>:
>> arch/x86/kvm/mmu/mmu.c:5443:39: error: 'struct kvm_arch' has no member named 'tdp_mmu_roots'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |                                       ^
   include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
     300 |   if (!(condition))     \
         |         ^~~~~~~~~
   include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
     320 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |  ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:709:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     709 |  BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
         |  ^~~~~~~~~~~~~~~~
   include/linux/kernel.h:709:20: note: in expansion of macro '__same_type'
     709 |  BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
         |                    ^~~~~~~~~~~
   include/linux/list.h:511:2: note: in expansion of macro 'container_of'
     511 |  container_of(ptr, type, member)
         |  ^~~~~~~~~~~~
   include/linux/list.h:522:2: note: in expansion of macro 'list_entry'
     522 |  list_entry((ptr)->next, type, member)
         |  ^~~~~~~~~~
   include/linux/list.h:628:13: note: in expansion of macro 'list_first_entry'
     628 |  for (pos = list_first_entry(head, typeof(*pos), member); \
         |             ^~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/mmu.c:5443:3: note: in expansion of macro 'list_for_each_entry'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |   ^~~~~~~~~~~~~~~~~~~
>> arch/x86/kvm/mmu/mmu.c:5443:39: error: 'struct kvm_arch' has no member named 'tdp_mmu_roots'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |                                       ^
   include/linux/compiler_types.h:300:9: note: in definition of macro '__compiletime_assert'
     300 |   if (!(condition))     \
         |         ^~~~~~~~~
   include/linux/compiler_types.h:320:2: note: in expansion of macro '_compiletime_assert'
     320 |  _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
         |  ^~~~~~~~~~~~~~~~~~~
   include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
      39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
         |                                     ^~~~~~~~~~~~~~~~~~
   include/linux/kernel.h:709:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
     709 |  BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
         |  ^~~~~~~~~~~~~~~~
   include/linux/kernel.h:710:6: note: in expansion of macro '__same_type'
     710 |     !__same_type(*(ptr), void),   \
         |      ^~~~~~~~~~~
   include/linux/list.h:511:2: note: in expansion of macro 'container_of'
     511 |  container_of(ptr, type, member)
         |  ^~~~~~~~~~~~
   include/linux/list.h:522:2: note: in expansion of macro 'list_entry'
     522 |  list_entry((ptr)->next, type, member)
         |  ^~~~~~~~~~
   include/linux/list.h:628:13: note: in expansion of macro 'list_first_entry'
     628 |  for (pos = list_first_entry(head, typeof(*pos), member); \
         |             ^~~~~~~~~~~~~~~~
   arch/x86/kvm/mmu/mmu.c:5443:3: note: in expansion of macro 'list_for_each_entry'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |   ^~~~~~~~~~~~~~~~~~~
   In file included from include/linux/mm_types.h:8,
                    from arch/x86/kvm/irq.h:13,
                    from arch/x86/kvm/mmu/mmu.c:18:
>> arch/x86/kvm/mmu/mmu.c:5443:39: error: 'struct kvm_arch' has no member named 'tdp_mmu_roots'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |                                       ^
   include/linux/list.h:619:20: note: in definition of macro 'list_entry_is_head'
     619 |  (&pos->member == (head))
         |                    ^~~~
   arch/x86/kvm/mmu/mmu.c:5443:3: note: in expansion of macro 'list_for_each_entry'
    5443 |   list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
         |   ^~~~~~~~~~~~~~~~~~~


vim +5443 arch/x86/kvm/mmu/mmu.c

  5398	
  5399	/*
  5400	 * Fast invalidate all shadow pages and use lock-break technique
  5401	 * to zap obsolete pages.
  5402	 *
  5403	 * It's required when memslot is being deleted or VM is being
  5404	 * destroyed, in these cases, we should ensure that KVM MMU does
  5405	 * not use any resource of the being-deleted slot or all slots
  5406	 * after calling the function.
  5407	 */
  5408	static void kvm_mmu_zap_all_fast(struct kvm *kvm)
  5409	{
  5410		struct kvm_mmu_page *root;
  5411	
  5412		lockdep_assert_held(&kvm->slots_lock);
  5413	
  5414		write_lock(&kvm->mmu_lock);
  5415		trace_kvm_mmu_zap_all_fast(kvm);
  5416	
  5417		/*
  5418		 * Toggle mmu_valid_gen between '0' and '1'.  Because slots_lock is
  5419		 * held for the entire duration of zapping obsolete pages, it's
  5420		 * impossible for there to be multiple invalid generations associated
  5421		 * with *valid* shadow pages at any given time, i.e. there is exactly
  5422		 * one valid generation and (at most) one invalid generation.
  5423		 */
  5424		kvm->arch.mmu_valid_gen = kvm->arch.mmu_valid_gen ? 0 : 1;
  5425	
  5426	
  5427		if (is_tdp_mmu_enabled(kvm)) {
  5428			/*
  5429			 * Mark each TDP MMU root as invalid so that other threads
  5430			 * will drop their references and allow the root count to
  5431			 * go to 0.
  5432			 *
  5433			 * This has essentially the same effect for the TDP MMU
  5434			 * as updating mmu_valid_gen above does for the shadow
  5435			 * MMU.
  5436			 *
  5437			 * In order to ensure all threads see this change when
  5438			 * handling the MMU reload signal, this must happen in the
  5439			 * same critical section as kvm_reload_remote_mmus, and
  5440			 * before kvm_zap_obsolete_pages as kvm_zap_obsolete_pages
  5441			 * could drop the MMU lock and yield.
  5442			 */
> 5443			list_for_each_entry(root, &kvm->arch.tdp_mmu_roots, link)
  5444				root->role.invalid = true;
  5445		}
  5446	
  5447		/*
  5448		 * Notify all vcpus to reload its shadow page table and flush TLB.
  5449		 * Then all vcpus will switch to new shadow page table with the new
  5450		 * mmu_valid_gen.
  5451		 *
  5452		 * Note: we need to do this under the protection of mmu_lock,
  5453		 * otherwise, vcpu would purge shadow page but miss tlb flush.
  5454		 */
  5455		kvm_reload_remote_mmus(kvm);
  5456	
  5457		kvm_zap_obsolete_pages(kvm);
  5458	
  5459		write_unlock(&kvm->mmu_lock);
  5460	}
  5461	

---
0-DAY CI Kernel Test Service, Intel Corporation
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