diff options
| -rw-r--r-- | arch/x86/boot/compressed/pagetable.c | 2 | ||||
| -rw-r--r-- | arch/x86/include/asm/init.h | 3 | ||||
| -rw-r--r-- | arch/x86/kernel/machine_kexec_64.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/ident_map.c | 14 | ||||
| -rw-r--r-- | arch/x86/power/hibernate_64.c | 2 |
5 files changed, 18 insertions, 5 deletions
diff --git a/arch/x86/boot/compressed/pagetable.c b/arch/x86/boot/compressed/pagetable.c index 56589d0a804b..1d78f1739087 100644 --- a/arch/x86/boot/compressed/pagetable.c +++ b/arch/x86/boot/compressed/pagetable.c @@ -70,7 +70,7 @@ static unsigned long level4p; * Due to relocation, pointers must be assigned at run time not build time. */ static struct x86_mapping_info mapping_info = { - .pmd_flag = __PAGE_KERNEL_LARGE_EXEC, + .page_flag = __PAGE_KERNEL_LARGE_EXEC, }; /* Locates and clears a region for a new top level page table. */ diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h index 737da62bfeb0..474eb8c66fee 100644 --- a/arch/x86/include/asm/init.h +++ b/arch/x86/include/asm/init.h @@ -4,8 +4,9 @@ struct x86_mapping_info { void *(*alloc_pgt_page)(void *); /* allocate buf for page table */ void *context; /* context for alloc_pgt_page */ - unsigned long pmd_flag; /* page flag for PMD entry */ + unsigned long page_flag; /* page flag for PMD or PUD entry */ unsigned long offset; /* ident mapping offset */ + bool direct_gbpages; /* PUD level 1GB page support */ }; int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page, diff --git a/arch/x86/kernel/machine_kexec_64.c b/arch/x86/kernel/machine_kexec_64.c index 085c3b300d32..1d4f2b076545 100644 --- a/arch/x86/kernel/machine_kexec_64.c +++ b/arch/x86/kernel/machine_kexec_64.c @@ -113,7 +113,7 @@ static int init_pgtable(struct kimage *image, unsigned long start_pgtable) struct x86_mapping_info info = { .alloc_pgt_page = alloc_pgt_page, .context = image, - .pmd_flag = __PAGE_KERNEL_LARGE_EXEC, + .page_flag = __PAGE_KERNEL_LARGE_EXEC, }; unsigned long mstart, mend; pgd_t *level4p; diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c index 04210a29dd60..adab1595f4bd 100644 --- a/arch/x86/mm/ident_map.c +++ b/arch/x86/mm/ident_map.c @@ -13,7 +13,7 @@ static void ident_pmd_init(struct x86_mapping_info *info, pmd_t *pmd_page, if (pmd_present(*pmd)) continue; - set_pmd(pmd, __pmd((addr - info->offset) | info->pmd_flag)); + set_pmd(pmd, __pmd((addr - info->offset) | info->page_flag)); } } @@ -30,6 +30,18 @@ static int ident_pud_init(struct x86_mapping_info *info, pud_t *pud_page, if (next > end) next = end; + if (info->direct_gbpages) { + pud_t pudval; + + if (pud_present(*pud)) + continue; + + addr &= PUD_MASK; + pudval = __pud((addr - info->offset) | info->page_flag); + set_pud(pud, pudval); + continue; + } + if (pud_present(*pud)) { pmd = pmd_offset(pud, 0); ident_pmd_init(info, pmd, addr, next); diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c index 6a61194ffd58..a6e21fee22ea 100644 --- a/arch/x86/power/hibernate_64.c +++ b/arch/x86/power/hibernate_64.c @@ -104,7 +104,7 @@ static int set_up_temporary_mappings(void) { struct x86_mapping_info info = { .alloc_pgt_page = alloc_pgt_page, - .pmd_flag = __PAGE_KERNEL_LARGE_EXEC, + .page_flag = __PAGE_KERNEL_LARGE_EXEC, .offset = __PAGE_OFFSET, }; unsigned long mstart, mend; |