CC: [email protected] CC: [email protected] CC: [email protected] TO: Paolo Bonzini <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 85a90500f9a1717c4e142ce92e6c1cb1a339ec78 commit: 4a38162ee9f10f5f67c36f4f5aa4f6be2657efd5 KVM: MMU: load PDPTRs outside mmu_lock date: 4 months ago :::::: branch date: 22 hours ago :::::: commit date: 4 months ago config: x86_64-randconfig-c001-20210806 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 42b9c2a17a0b63cccf3ac197a82f91b28e53e643) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4a38162ee9f10f5f67c36f4f5aa4f6be2657efd5 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 4a38162ee9f10f5f67c36f4f5aa4f6be2657efd5 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) arch/x86/kvm/mmu/mmu.c:2963:2: note: Taking false branch if (unlikely(error_code & PFERR_RSVD_MASK)) ^ arch/x86/kvm/mmu/mmu.c:2967:16: note: Assuming the condition is false if (unlikely(((error_code & (PFERR_FETCH_MASK | PFERR_PRESENT_MASK)) ^ include/linux/compiler.h:78:42: note: expanded from macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ arch/x86/kvm/mmu/mmu.c:2967:2: note: Taking false branch if (unlikely(((error_code & (PFERR_FETCH_MASK | PFERR_PRESENT_MASK)) ^ arch/x86/kvm/mmu/mmu.c:2985:9: note: Assuming 'shadow_acc_track_mask' is equal to 0 return shadow_acc_track_mask != 0 || ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2985:9: note: Left side of '||' is false arch/x86/kvm/mmu/mmu.c:2986:10: note: Assuming the condition is true ((error_code & (PFERR_WRITE_MASK | PFERR_PRESENT_MASK)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2985:2: note: Returning the value 1, which participates in a condition later return shadow_acc_track_mask != 0 || ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:3053:7: note: Returning from 'page_fault_can_be_fast' if (!page_fault_can_be_fast(error_code)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:3053:2: note: Taking false branch if (!page_fault_can_be_fast(error_code)) ^ arch/x86/kvm/mmu/mmu.c:3061:3: note: Calling 'shadow_walk_init' for_each_shadow_entry_lockless(vcpu, cr2_or_gpa, iterator, spte) ^ arch/x86/kvm/mmu/mmu.c:166:7: note: expanded from macro 'for_each_shadow_entry_lockless' for (shadow_walk_init(&(_walker), _vcpu, _addr); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2111:2: note: Calling 'shadow_walk_init_using_root' shadow_walk_init_using_root(iterator, vcpu, vcpu->arch.mmu->root_hpa, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2087:6: note: Assuming field 'level' is not equal to PT64_ROOT_4LEVEL if (iterator->level == PT64_ROOT_4LEVEL && ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2087:42: note: Left side of '&&' is false if (iterator->level == PT64_ROOT_4LEVEL && ^ arch/x86/kvm/mmu/mmu.c:2092:6: note: Assuming field 'level' is not equal to PT32E_ROOT_LEVEL if (iterator->level == PT32E_ROOT_LEVEL) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2092:2: note: Taking false branch if (iterator->level == PT32E_ROOT_LEVEL) { ^ arch/x86/kvm/mmu/mmu.c:2106:1: note: Returning without writing to 'iterator->sptep' } ^ arch/x86/kvm/mmu/mmu.c:2111:2: note: Returning from 'shadow_walk_init_using_root' shadow_walk_init_using_root(iterator, vcpu, vcpu->arch.mmu->root_hpa, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2113:1: note: Returning without writing to 'iterator->sptep' } ^ arch/x86/kvm/mmu/mmu.c:3061:3: note: Returning from 'shadow_walk_init' for_each_shadow_entry_lockless(vcpu, cr2_or_gpa, iterator, spte) ^ arch/x86/kvm/mmu/mmu.c:166:7: note: expanded from macro 'for_each_shadow_entry_lockless' for (shadow_walk_init(&(_walker), _vcpu, _addr); \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:3061:3: note: Calling 'shadow_walk_okay' for_each_shadow_entry_lockless(vcpu, cr2_or_gpa, iterator, spte) ^ arch/x86/kvm/mmu/mmu.c:167:7: note: expanded from macro 'for_each_shadow_entry_lockless' shadow_walk_okay(&(_walker)) && \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2117:6: note: Assuming field 'level' is < PG_LEVEL_4K if (iterator->level < PG_LEVEL_4K) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:2117:2: note: Taking true branch if (iterator->level < PG_LEVEL_4K) ^ arch/x86/kvm/mmu/mmu.c:2118:3: note: Returning without writing to 'iterator->sptep' return false; ^ arch/x86/kvm/mmu/mmu.c:3061:3: note: Returning from 'shadow_walk_okay' for_each_shadow_entry_lockless(vcpu, cr2_or_gpa, iterator, spte) ^ arch/x86/kvm/mmu/mmu.c:167:7: note: expanded from macro 'for_each_shadow_entry_lockless' shadow_walk_okay(&(_walker)) && \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/kvm/mmu/mmu.c:3061:3: note: Left side of '&&' is false for_each_shadow_entry_lockless(vcpu, cr2_or_gpa, iterator, spte) ^ arch/x86/kvm/mmu/mmu.c:167:36: note: expanded from macro 'for_each_shadow_entry_lockless' shadow_walk_okay(&(_walker)) && \ ^ arch/x86/kvm/mmu/mmu.c:3065:3: note: Taking true branch if (!is_shadow_present_pte(spte)) ^ arch/x86/kvm/mmu/mmu.c:3066:4: note: Execution continues on line 3140 break; ^ arch/x86/kvm/mmu/mmu.c:3140:2: note: 4th function call argument is an uninitialized value trace_fast_page_fault(vcpu, cr2_or_gpa, error_code, iterator.sptep, ^ ~~~~~~~~~~~~~~ >> arch/x86/kvm/mmu/mmu.c:3336:3: warning: Value stored to 'r' is never read >> [clang-analyzer-deadcode.DeadStores] r = -EIO; ^ ~~~~ arch/x86/kvm/mmu/mmu.c:3336:3: note: Value stored to 'r' is never read r = -EIO; ^ ~~~~ arch/x86/kvm/mmu/mmu.c:3350:4: warning: Value stored to 'r' is never read [clang-analyzer-deadcode.DeadStores] r = -EIO; ^ ~~~~ arch/x86/kvm/mmu/mmu.c:3350:4: note: Value stored to 'r' is never read r = -EIO; ^ ~~~~ Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (2 in non-user code, 3 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (2 in non-user code, 2 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. kernel/exit.c:1571:3: warning: Value stored to 'signo' is never read [clang-analyzer-deadcode.DeadStores] signo = SIGCHLD; ^ kernel/exit.c:1571:3: note: Value stored to 'signo' is never read kernel/exit.c:1706:3: warning: Value stored to 'signo' is never read [clang-analyzer-deadcode.DeadStores] signo = SIGCHLD; ^ kernel/exit.c:1706:3: note: Value stored to 'signo' is never read Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. kernel/resource.c:83:2: warning: The expression is an uninitialized value. The computed value will also be garbage [clang-analyzer-core.uninitialized.Assign] (*pos)++; ^ kernel/resource.c:1666:2: note: 'l' declared without an initial value loff_t l; ^~~~~~~~ kernel/resource.c:1669:2: note: Loop condition is true. Entering loop body for (p = p->child; p ; p = r_next(NULL, p, &l)) { ^ kernel/resource.c:1674:7: note: Assuming the condition is true if (p->start >= addr + size) ^~~~~~~~~~~~~~~~~~~~~~~ kernel/resource.c:1674:3: note: Taking true branch if (p->start >= addr + size) ^ kernel/resource.c:1675:4: note: Execution continues on line 1669 continue; ^ kernel/resource.c:1669:29: note: Calling 'r_next' for (p = p->child; p ; p = r_next(NULL, p, &l)) { ^~~~~~~~~~~~~~~~~~~ kernel/resource.c:83:2: note: The expression is an uninitialized value. The computed value will also be garbage (*pos)++; ^~~~~~ Suppressed 2 warnings (2 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. kernel/sysctl.c:1484:10: warning: The left operand of '==' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult] if (c == '-') { ~ ^ kernel/sysctl.c:1431:63: note: 'c' declared without an initial value char tr_a[] = { '-', ',', '\n' }, tr_b[] = { ',', '\n', 0 }, c; ^ kernel/sysctl.c:1433:6: note: Assuming 'bitmap' is non-null if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^~~~~~~ kernel/sysctl.c:1433:6: note: Left side of '||' is false kernel/sysctl.c:1433:17: note: Assuming 'bitmap_len' is not equal to 0 if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^~~~~~~~~~~ kernel/sysctl.c:1433:6: note: Left side of '||' is false if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^ kernel/sysctl.c:1433:32: note: Assuming 'left' is not equal to 0 if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^~~~~ kernel/sysctl.c:1433:6: note: Left side of '||' is false if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^ kernel/sysctl.c:1433:42: note: Assuming the condition is false if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^~~~~ kernel/sysctl.c:1433:48: note: Left side of '&&' is false if (!bitmap || !bitmap_len || !left || (*ppos && !write)) { ^ kernel/sysctl.c:1438:6: note: Assuming 'write' is not equal to 0 if (write) { ^~~~~ kernel/sysctl.c:1438:2: note: Taking true branch if (write) { ^ kernel/sysctl.c:1442:7: note: Assuming the condition is false if (left > PAGE_SIZE - 1) { vim +/r +3336 arch/x86/kvm/mmu/mmu.c 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3288 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3289 static int mmu_alloc_shadow_roots(struct kvm_vcpu *vcpu) 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3290 { b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3291 struct kvm_mmu *mmu = vcpu->arch.mmu; 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3292 u64 pdptrs[4], pm_mask; be01e8e2c632c4 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-03-20 3293 gfn_t root_gfn, root_pgd; 8123f265248c85 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-04-27 3294 hpa_t root; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3295 unsigned i; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3296 int r; 3bb65a22a45020 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3297 b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3298 root_pgd = mmu->get_guest_pgd(vcpu); be01e8e2c632c4 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-03-20 3299 root_gfn = root_pgd >> PAGE_SHIFT; 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3300 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3301 if (mmu_check_root(vcpu, root_gfn)) 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3302 return 1; 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3303 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3304 /* 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3305 * On SVM, reading PDPTRs might access guest memory, which might fault 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3306 * and thus might sleep. Grab the PDPTRs before acquiring mmu_lock. 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3307 */ 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3308 if (mmu->root_level == PT32E_ROOT_LEVEL) { 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3309 for (i = 0; i < 4; ++i) { 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3310 pdptrs[i] = mmu->get_pdptr(vcpu, i); 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3311 if (!(pdptrs[i] & PT_PRESENT_MASK)) 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3312 continue; 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3313 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3314 if (mmu_check_root(vcpu, pdptrs[i] >> PAGE_SHIFT)) 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3315 return 1; 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3316 } 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3317 } 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3318 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3319 write_lock(&vcpu->kvm->mmu_lock); 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3320 r = make_mmu_pages_available(vcpu); 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3321 if (r < 0) 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3322 goto out_unlock; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3323 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3324 /* 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3325 * Do we shadow a long mode page table? If so we need to 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3326 * write-protect the guests page table root. 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3327 */ b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3328 if (mmu->root_level >= PT64_ROOT_4LEVEL) { 8123f265248c85 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-04-27 3329 root = mmu_alloc_root(vcpu, root_gfn, 0, b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3330 mmu->shadow_root_level, false); b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3331 mmu->root_hpa = root; be01e8e2c632c4 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-03-20 3332 goto set_root_pgd; 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3333 } f87f928882d080 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-02 3334 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3335 if (WARN_ON_ONCE(!mmu->pae_root)) { 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 @3336 r = -EIO; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3337 goto out_unlock; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3338 } 73ad160693dc3b arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3339 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3340 /* 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3341 * We shadow a 32 bit page table. This may be a legacy 2-level 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3342 * or a PAE 3-level page table. In either case we need to be aware that 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3343 * the shadow page table may be a PAE or a long mode page table. 651dd37a9ce6fd arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3344 */ 17e368d94af77c arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3345 pm_mask = PT_PRESENT_MASK | shadow_me_mask; 748e52b9b73680 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3346 if (mmu->shadow_root_level == PT64_ROOT_4LEVEL) { 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3347 pm_mask |= PT_ACCESSED_MASK | PT_WRITABLE_MASK | PT_USER_MASK; 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3348 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3349 if (WARN_ON_ONCE(!mmu->lm_root)) { 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3350 r = -EIO; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3351 goto out_unlock; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3352 } 73ad160693dc3b arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3353 748e52b9b73680 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3354 mmu->lm_root[0] = __pa(mmu->pae_root) | pm_mask; 04d45551a1eefb arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3355 } 04d45551a1eefb arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3356 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3357 for (i = 0; i < 4; ++i) { c834e5e44fc15a arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-09 3358 WARN_ON_ONCE(IS_VALID_PAE_ROOT(mmu->pae_root[i])); 6e6ec58485746e arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3359 b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3360 if (mmu->root_level == PT32E_ROOT_LEVEL) { 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3361 if (!(pdptrs[i] & PT_PRESENT_MASK)) { c834e5e44fc15a arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-09 3362 mmu->pae_root[i] = INVALID_PAE_ROOT; 417726a3fbecb2 drivers/kvm/mmu.c Avi Kivity 2007-04-12 3363 continue; 417726a3fbecb2 drivers/kvm/mmu.c Avi Kivity 2007-04-12 3364 } 6e0918aec49a5f arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3365 root_gfn = pdptrs[i] >> PAGE_SHIFT; 5a7388c2d2faa2 arch/x86/kvm/mmu.c Eric Northup 2010-04-26 3366 } 8facbbff071ff2 arch/x86/kvm/mmu.c Avi Kivity 2010-05-04 3367 8123f265248c85 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-04-27 3368 root = mmu_alloc_root(vcpu, root_gfn, i << 30, 8123f265248c85 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-04-27 3369 PT32_ROOT_LEVEL, false); b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3370 mmu->pae_root[i] = root | pm_mask; 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3371 } 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3372 ba0a194ffbfb41 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3373 if (mmu->shadow_root_level == PT64_ROOT_4LEVEL) b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3374 mmu->root_hpa = __pa(mmu->lm_root); ba0a194ffbfb41 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3375 else ba0a194ffbfb41 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3376 mmu->root_hpa = __pa(mmu->pae_root); 81407ca553c0c8 arch/x86/kvm/mmu.c Joerg Roedel 2010-09-10 3377 be01e8e2c632c4 arch/x86/kvm/mmu/mmu.c Sean Christopherson 2020-03-20 3378 set_root_pgd: b37233c911cbec arch/x86/kvm/mmu/mmu.c Sean Christopherson 2021-03-04 3379 mmu->root_pgd = root_pgd; 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3380 out_unlock: 4a38162ee9f10f arch/x86/kvm/mmu/mmu.c Paolo Bonzini 2021-04-08 3381 write_unlock(&vcpu->kvm->mmu_lock); ad7dc69aeb2313 arch/x86/kvm/mmu.c Vitaly Kuznetsov 2019-02-22 3382 8986ecc0ef58c9 arch/x86/kvm/mmu.c Marcelo Tosatti 2009-05-12 3383 return 0; 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3384 } 17ac10ad2bb7d8 drivers/kvm/mmu.c Avi Kivity 2007-01-05 3385 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
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