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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH v2 5/5] x86/pvh: Add 64bit relocation page tables
Hi Jason, kernel test robot noticed the following build warnings: [auto build test WARNING on tip/x86/core] [also build test WARNING on xen-tip/linux-next tip/master linus/master v6.11-rc3 next-20240815] [cannot apply to tip/auto-latest] [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/Jason-Andryuk/xen-sync-elfnote-h-from-xen-tree/20240815-035238 base: tip/x86/core patch link: https://lore.kernel.org/r/20240814195053.5564-6-jason.andryuk%40amd.com patch subject: [PATCH v2 5/5] x86/pvh: Add 64bit relocation page tables config: i386-randconfig-011-20240815 (https://download.01.org/0day-ci/archive/20240816/202408160955.iKtoU4kP-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240816/202408160955.iKtoU4kP-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202408160955.iKtoU4kP-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: >> arch/x86/include/asm/pgtable_64_types.h:49:9: warning: 'SHARED_KERNEL_PMD' >> macro redefined [-Wmacro-redefined] 49 | #define SHARED_KERNEL_PMD 0 | ^ arch/x86/include/asm/pgtable-3level_types.h:30:9: note: previous definition is here 30 | #define SHARED_KERNEL_PMD (!static_cpu_has(X86_FEATURE_PTI)) | ^ In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: arch/x86/include/asm/pgtable_64_types.h:75:9: warning: 'PGDIR_SHIFT' macro redefined [-Wmacro-redefined] 75 | #define PGDIR_SHIFT 39 | ^ arch/x86/include/asm/pgtable-3level_types.h:37:9: note: previous definition is here 37 | #define PGDIR_SHIFT 30 | ^ In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: >> arch/x86/include/asm/pgtable_64_types.h:76:9: warning: 'PTRS_PER_PGD' macro >> redefined [-Wmacro-redefined] 76 | #define PTRS_PER_PGD 512 | ^ arch/x86/include/asm/pgtable-3level_types.h:38:9: note: previous definition is here 38 | #define PTRS_PER_PGD 4 | ^ In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: arch/x86/include/asm/pgtable_64_types.h:99:9: warning: 'PMD_SIZE' macro redefined [-Wmacro-redefined] 99 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) | ^ arch/x86/include/asm/pgtable_32_types.h:12:10: note: previous definition is here 12 | # define PMD_SIZE (1UL << PMD_SHIFT) | ^ In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: arch/x86/include/asm/pgtable_64_types.h:103:9: warning: 'PGDIR_SIZE' macro redefined [-Wmacro-redefined] 103 | #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) | ^ arch/x86/include/asm/pgtable_32_types.h:20:9: note: previous definition is here 20 | #define PGDIR_SIZE (1UL << PGDIR_SHIFT) | ^ In file included from arch/x86/platform/pvh/head.S:19: In file included from arch/x86/include/asm/pgtable_64.h:6: >> arch/x86/include/asm/pgtable_64_types.h:210:9: warning: 'PGD_KERNEL_START' >> macro redefined [-Wmacro-redefined] 210 | #define PGD_KERNEL_START ((PAGE_SIZE / 2) / sizeof(pgd_t)) | ^ arch/x86/include/asm/pgtable-3level_types.h:53:9: note: previous definition is here 53 | #define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT) | ^ 6 warnings generated. /tmp/head-582305.s:252:51: error: expression could not be evaluated L4_PAGE_OFFSET = (((__PAGE_OFFSET_BASE_L4) >> 39) & 511) ^ vim +/PTRS_PER_PGD +76 arch/x86/include/asm/pgtable_64_types.h 54321d947ae9d6 Jeremy Fitzhardinge 2009-02-11 48 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 @49 #define SHARED_KERNEL_PMD 0 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 50 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 51 #ifdef CONFIG_X86_5LEVEL b8504058a06bd1 Kirill A. Shutemov 2017-03-30 52 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 53 /* b8504058a06bd1 Kirill A. Shutemov 2017-03-30 54 * PGDIR_SHIFT determines what a top-level page table entry can map b8504058a06bd1 Kirill A. Shutemov 2017-03-30 55 */ c65e774fb3f6af Kirill A. Shutemov 2018-02-14 56 #define PGDIR_SHIFT pgdir_shift b8504058a06bd1 Kirill A. Shutemov 2017-03-30 57 #define PTRS_PER_PGD 512 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 58 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 59 /* b8504058a06bd1 Kirill A. Shutemov 2017-03-30 60 * 4th level page in 5-level paging case b8504058a06bd1 Kirill A. Shutemov 2017-03-30 61 */ b8504058a06bd1 Kirill A. Shutemov 2017-03-30 62 #define P4D_SHIFT 39 c65e774fb3f6af Kirill A. Shutemov 2018-02-14 63 #define MAX_PTRS_PER_P4D 512 c65e774fb3f6af Kirill A. Shutemov 2018-02-14 64 #define PTRS_PER_P4D ptrs_per_p4d b8504058a06bd1 Kirill A. Shutemov 2017-03-30 65 #define P4D_SIZE (_AC(1, UL) << P4D_SHIFT) b8504058a06bd1 Kirill A. Shutemov 2017-03-30 66 #define P4D_MASK (~(P4D_SIZE - 1)) b8504058a06bd1 Kirill A. Shutemov 2017-03-30 67 02390b87a94599 Kirill A. Shutemov 2018-02-14 68 #define MAX_POSSIBLE_PHYSMEM_BITS 52 02390b87a94599 Kirill A. Shutemov 2018-02-14 69 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 70 #else /* CONFIG_X86_5LEVEL */ b8504058a06bd1 Kirill A. Shutemov 2017-03-30 71 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 72 /* fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 73 * PGDIR_SHIFT determines what a top-level page table entry can map fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 74 */ fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 75 #define PGDIR_SHIFT 39 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 @76 #define PTRS_PER_PGD 512 c65e774fb3f6af Kirill A. Shutemov 2018-02-14 77 #define MAX_PTRS_PER_P4D 1 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 78 b8504058a06bd1 Kirill A. Shutemov 2017-03-30 79 #endif /* CONFIG_X86_5LEVEL */ b8504058a06bd1 Kirill A. Shutemov 2017-03-30 80 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 81 /* fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 82 * 3rd level page fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 83 */ fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 84 #define PUD_SHIFT 30 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 85 #define PTRS_PER_PUD 512 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 86 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 87 /* fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 88 * PMD_SHIFT determines the size of the area a middle-level fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 89 * page table can map fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 90 */ fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 91 #define PMD_SHIFT 21 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 92 #define PTRS_PER_PMD 512 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 93 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 94 /* fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 95 * entries per page directory level fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 96 */ fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 97 #define PTRS_PER_PTE 512 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 98 fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 99 #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 100 #define PMD_MASK (~(PMD_SIZE - 1)) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 101 #define PUD_SIZE (_AC(1, UL) << PUD_SHIFT) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 102 #define PUD_MASK (~(PUD_SIZE - 1)) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 103 #define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 104 #define PGDIR_MASK (~(PGDIR_SIZE - 1)) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 105 1dddd25125112b Thomas Gleixner 2018-01-04 106 /* ff61f0791ce969 Jonathan Corbet 2023-03-14 107 * See Documentation/arch/x86/x86_64/mm.rst for a description of the memory map. 1dddd25125112b Thomas Gleixner 2018-01-04 108 * 1dddd25125112b Thomas Gleixner 2018-01-04 109 * Be very careful vs. KASLR when changing anything here. The KASLR address 1dddd25125112b Thomas Gleixner 2018-01-04 110 * range must not overlap with anything except the KASAN shadow area, which 1dddd25125112b Thomas Gleixner 2018-01-04 111 * is correct as KASAN disables KASLR. 1dddd25125112b Thomas Gleixner 2018-01-04 112 */ 162434e7f58b21 Kirill A. Shutemov 2018-02-14 113 #define MAXMEM (1UL << MAX_PHYSMEM_BITS) 92a0f81d89571e Thomas Gleixner 2017-12-20 114 16877a5570e0c5 Kirill A. Shutemov 2018-11-30 115 #define GUARD_HOLE_PGD_ENTRY -256UL 16877a5570e0c5 Kirill A. Shutemov 2018-11-30 116 #define GUARD_HOLE_SIZE (16UL << PGDIR_SHIFT) 16877a5570e0c5 Kirill A. Shutemov 2018-11-30 117 #define GUARD_HOLE_BASE_ADDR (GUARD_HOLE_PGD_ENTRY << PGDIR_SHIFT) 16877a5570e0c5 Kirill A. Shutemov 2018-11-30 118 #define GUARD_HOLE_END_ADDR (GUARD_HOLE_BASE_ADDR + GUARD_HOLE_SIZE) 16877a5570e0c5 Kirill A. Shutemov 2018-11-30 119 d52888aa2753e3 Kirill A. Shutemov 2018-10-26 120 #define LDT_PGD_ENTRY -240UL 5c7919bb1994f8 Kirill A. Shutemov 2018-02-14 121 #define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT) 8195d869d118bc Joerg Roedel 2018-07-18 122 #define LDT_END_ADDR (LDT_BASE_ADDR + PGDIR_SIZE) 5c7919bb1994f8 Kirill A. Shutemov 2018-02-14 123 14d12bb8582e15 Jiri Kosina 2018-04-12 124 #define __VMALLOC_BASE_L4 0xffffc90000000000UL 14d12bb8582e15 Jiri Kosina 2018-04-12 125 #define __VMALLOC_BASE_L5 0xffa0000000000000UL a7412546d8cb5a Kirill A. Shutemov 2018-02-14 126 a7412546d8cb5a Kirill A. Shutemov 2018-02-14 127 #define VMALLOC_SIZE_TB_L4 32UL a7412546d8cb5a Kirill A. Shutemov 2018-02-14 128 #define VMALLOC_SIZE_TB_L5 12800UL a7412546d8cb5a Kirill A. Shutemov 2018-02-14 129 14d12bb8582e15 Jiri Kosina 2018-04-12 130 #define __VMEMMAP_BASE_L4 0xffffea0000000000UL 14d12bb8582e15 Jiri Kosina 2018-04-12 131 #define __VMEMMAP_BASE_L5 0xffd4000000000000UL 92a0f81d89571e Thomas Gleixner 2017-12-20 132 eedb92abb9bb03 Kirill A. Shutemov 2018-02-14 133 #ifdef CONFIG_DYNAMIC_MEMORY_LAYOUT a95ae27c2ee1cb Thomas Garnier 2016-06-21 134 # define VMALLOC_START vmalloc_base ed7588d5dc6f5e Kirill A. Shutemov 2018-05-18 135 # define VMALLOC_SIZE_TB (pgtable_l5_enabled() ? VMALLOC_SIZE_TB_L5 : VMALLOC_SIZE_TB_L4) 25dfe478533272 Thomas Garnier 2016-07-27 136 # define VMEMMAP_START vmemmap_base a95ae27c2ee1cb Thomas Garnier 2016-06-21 137 #else a7412546d8cb5a Kirill A. Shutemov 2018-02-14 138 # define VMALLOC_START __VMALLOC_BASE_L4 a7412546d8cb5a Kirill A. Shutemov 2018-02-14 139 # define VMALLOC_SIZE_TB VMALLOC_SIZE_TB_L4 9b46a051e43461 Kirill A. Shutemov 2018-02-14 140 # define VMEMMAP_START __VMEMMAP_BASE_L4 eedb92abb9bb03 Kirill A. Shutemov 2018-02-14 141 #endif /* CONFIG_DYNAMIC_MEMORY_LAYOUT */ 92a0f81d89571e Thomas Gleixner 2017-12-20 142 1a167ddd3c561b Alexander Potapenko 2022-09-15 143 /* 1a167ddd3c561b Alexander Potapenko 2022-09-15 144 * End of the region for which vmalloc page tables are pre-allocated. 1a167ddd3c561b Alexander Potapenko 2022-09-15 145 * For non-KMSAN builds, this is the same as VMALLOC_END. 1a167ddd3c561b Alexander Potapenko 2022-09-15 146 * For KMSAN builds, VMALLOC_START..VMEMORY_END is 4 times bigger than 1a167ddd3c561b Alexander Potapenko 2022-09-15 147 * VMALLOC_START..VMALLOC_END (see below). 1a167ddd3c561b Alexander Potapenko 2022-09-15 148 */ 1a167ddd3c561b Alexander Potapenko 2022-09-15 149 #define VMEMORY_END (VMALLOC_START + (VMALLOC_SIZE_TB << 40) - 1) 1a167ddd3c561b Alexander Potapenko 2022-09-15 150 1a167ddd3c561b Alexander Potapenko 2022-09-15 151 #ifndef CONFIG_KMSAN 1a167ddd3c561b Alexander Potapenko 2022-09-15 152 #define VMALLOC_END VMEMORY_END 1a167ddd3c561b Alexander Potapenko 2022-09-15 153 #else 1a167ddd3c561b Alexander Potapenko 2022-09-15 154 /* 1a167ddd3c561b Alexander Potapenko 2022-09-15 155 * In KMSAN builds vmalloc area is four times smaller, and the remaining 3/4 1a167ddd3c561b Alexander Potapenko 2022-09-15 156 * are used to keep the metadata for virtual pages. The memory formerly 1a167ddd3c561b Alexander Potapenko 2022-09-15 157 * belonging to vmalloc area is now laid out as follows: 1a167ddd3c561b Alexander Potapenko 2022-09-15 158 * 1a167ddd3c561b Alexander Potapenko 2022-09-15 159 * 1st quarter: VMALLOC_START to VMALLOC_END - new vmalloc area 1a167ddd3c561b Alexander Potapenko 2022-09-15 160 * 2nd quarter: KMSAN_VMALLOC_SHADOW_START to 1a167ddd3c561b Alexander Potapenko 2022-09-15 161 * VMALLOC_END+KMSAN_VMALLOC_SHADOW_OFFSET - vmalloc area shadow 1a167ddd3c561b Alexander Potapenko 2022-09-15 162 * 3rd quarter: KMSAN_VMALLOC_ORIGIN_START to 1a167ddd3c561b Alexander Potapenko 2022-09-15 163 * VMALLOC_END+KMSAN_VMALLOC_ORIGIN_OFFSET - vmalloc area origins 1a167ddd3c561b Alexander Potapenko 2022-09-15 164 * 4th quarter: KMSAN_MODULES_SHADOW_START to KMSAN_MODULES_ORIGIN_START 1a167ddd3c561b Alexander Potapenko 2022-09-15 165 * - shadow for modules, 1a167ddd3c561b Alexander Potapenko 2022-09-15 166 * KMSAN_MODULES_ORIGIN_START to 1a167ddd3c561b Alexander Potapenko 2022-09-15 167 * KMSAN_MODULES_ORIGIN_START + MODULES_LEN - origins for modules. 1a167ddd3c561b Alexander Potapenko 2022-09-15 168 */ 1a167ddd3c561b Alexander Potapenko 2022-09-15 169 #define VMALLOC_QUARTER_SIZE ((VMALLOC_SIZE_TB << 40) >> 2) 1a167ddd3c561b Alexander Potapenko 2022-09-15 170 #define VMALLOC_END (VMALLOC_START + VMALLOC_QUARTER_SIZE - 1) 1a167ddd3c561b Alexander Potapenko 2022-09-15 171 1a167ddd3c561b Alexander Potapenko 2022-09-15 172 /* 1a167ddd3c561b Alexander Potapenko 2022-09-15 173 * vmalloc metadata addresses are calculated by adding shadow/origin offsets 1a167ddd3c561b Alexander Potapenko 2022-09-15 174 * to vmalloc address. 1a167ddd3c561b Alexander Potapenko 2022-09-15 175 */ 1a167ddd3c561b Alexander Potapenko 2022-09-15 176 #define KMSAN_VMALLOC_SHADOW_OFFSET VMALLOC_QUARTER_SIZE 1a167ddd3c561b Alexander Potapenko 2022-09-15 177 #define KMSAN_VMALLOC_ORIGIN_OFFSET (VMALLOC_QUARTER_SIZE << 1) 1a167ddd3c561b Alexander Potapenko 2022-09-15 178 1a167ddd3c561b Alexander Potapenko 2022-09-15 179 #define KMSAN_VMALLOC_SHADOW_START (VMALLOC_START + KMSAN_VMALLOC_SHADOW_OFFSET) 1a167ddd3c561b Alexander Potapenko 2022-09-15 180 #define KMSAN_VMALLOC_ORIGIN_START (VMALLOC_START + KMSAN_VMALLOC_ORIGIN_OFFSET) 1a167ddd3c561b Alexander Potapenko 2022-09-15 181 1a167ddd3c561b Alexander Potapenko 2022-09-15 182 /* 1a167ddd3c561b Alexander Potapenko 2022-09-15 183 * The shadow/origin for modules are placed one by one in the last 1/4 of 1a167ddd3c561b Alexander Potapenko 2022-09-15 184 * vmalloc space. 1a167ddd3c561b Alexander Potapenko 2022-09-15 185 */ 1a167ddd3c561b Alexander Potapenko 2022-09-15 186 #define KMSAN_MODULES_SHADOW_START (VMALLOC_END + KMSAN_VMALLOC_ORIGIN_OFFSET + 1) 1a167ddd3c561b Alexander Potapenko 2022-09-15 187 #define KMSAN_MODULES_ORIGIN_START (KMSAN_MODULES_SHADOW_START + MODULES_LEN) 1a167ddd3c561b Alexander Potapenko 2022-09-15 188 #endif /* CONFIG_KMSAN */ 92a0f81d89571e Thomas Gleixner 2017-12-20 189 6145cfe394a7f1 Kees Cook 2013-10-10 190 #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE) f06bdd4001c257 Thomas Garnier 2017-03-14 191 /* The module sections ends with the start of the fixmap */ 14df3267029158 Thomas Gleixner 2020-11-18 192 #ifndef CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP f5a40711fa58f1 Andrey Ryabinin 2017-12-28 193 # define MODULES_END _AC(0xffffffffff000000, UL) 14df3267029158 Thomas Gleixner 2020-11-18 194 #else 14df3267029158 Thomas Gleixner 2020-11-18 195 # define MODULES_END _AC(0xfffffffffe000000, UL) 14df3267029158 Thomas Gleixner 2020-11-18 196 #endif fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 197 #define MODULES_LEN (MODULES_END - MODULES_VADDR) 92a0f81d89571e Thomas Gleixner 2017-12-20 198 3891a04aafd668 H. Peter Anvin 2014-04-29 199 #define ESPFIX_PGD_ENTRY _AC(-2, UL) 1d33b219563fb9 Kirill A. Shutemov 2017-03-30 200 #define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << P4D_SHIFT) 92a0f81d89571e Thomas Gleixner 2017-12-20 201 f2078904810373 Thomas Gleixner 2018-01-04 202 #define CPU_ENTRY_AREA_PGD _AC(-4, UL) 92a0f81d89571e Thomas Gleixner 2017-12-20 203 #define CPU_ENTRY_AREA_BASE (CPU_ENTRY_AREA_PGD << P4D_SHIFT) 92a0f81d89571e Thomas Gleixner 2017-12-20 204 8266e31ed0fedb Mathias Krause 2014-09-21 205 #define EFI_VA_START ( -4 * (_AC(1, UL) << 30)) 8266e31ed0fedb Mathias Krause 2014-09-21 206 #define EFI_VA_END (-68 * (_AC(1, UL) << 30)) fb3551491b2044 Jeremy Fitzhardinge 2009-02-08 207 8170e6bed465b4 H. Peter Anvin 2013-01-24 208 #define EARLY_DYNAMIC_PAGE_TABLES 64 8170e6bed465b4 H. Peter Anvin 2013-01-24 209 76e258add7b653 Joerg Roedel 2018-07-18 @210 #define PGD_KERNEL_START ((PAGE_SIZE / 2) / sizeof(pgd_t)) 76e258add7b653 Joerg Roedel 2018-07-18 211 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
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