Messages in this thread Patch in this message | | | Date | Fri, 19 Aug 2022 10:30:01 +0800 | From | Aaron Lu <> | Subject | [PATCH 1/1] x86/mm: Use proper mask when setting PUD mapping |
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commit c164fbb40c43f("x86/mm: thread pgprot_t through init_memory_mapping()") mistakenly used __pgprot() which doesn't respect __default_kernel_pte_mask when setting PUD mapping, fix it by using __pgprot_mask().
Fixes: c164fbb40c43f("x86/mm: thread pgprot_t through init_memory_mapping()") Signed-off-by: Aaron Lu <aaron.lu@intel.com> --- arch/x86/mm/init_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 39c5246964a9..a7238f17df47 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -645,7 +645,7 @@ phys_pud_init(pud_t *pud_page, unsigned long paddr, unsigned long paddr_end, pages++; spin_lock(&init_mm.page_table_lock); - prot = __pgprot(pgprot_val(prot) | __PAGE_KERNEL_LARGE); + prot = __pgprot_mask(pgprot_val(prot) | __PAGE_KERNEL_LARGE); set_pte_init((pte_t *)pud, pfn_pte((paddr & PUD_MASK) >> PAGE_SHIFT, -- 2.37.1
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