Re: [PATCH v2 4/6] arm64: use hw_pte_t for fixmap HW PTEs
flat view
From: Ryan Roberts <ryan.roberts@arm.com>
Date: 2026-09-24 12:23:46
Also in:
linux-efi, linux-mm, lkml
On 22/09/2026 18:31, Muhammad Usama Anjum wrote:
fixmap_pte() returns a pointer into bm_pte, and early_fixmap_init_pte() installs those arrays as page tables. Their elements are therefore HW PTEs. Change the element type of bm_pte to hw_pte_t so it matches the HW PTE pointers returned and passed to the accessors. This is needed before ARCH_HAS_HW_PTE_T makes HW PTEs and SW PTE values distinct types; the array dimensions and placement are unchanged. Signed-off-by: Muhammad Usama Anjum <redacted>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
quoted hunk ↗ jump to hunk
--- arch/arm64/mm/fixmap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/arch/arm64/mm/fixmap.c b/arch/arm64/mm/fixmap.c index 237a9136bc73b..709a97fe327d8 100644 --- a/arch/arm64/mm/fixmap.c +++ b/arch/arm64/mm/fixmap.c@@ -31,7 +31,7 @@ static_assert(NR_BM_PMD_TABLES == 1); #define BM_PTE_TABLE_IDX(addr) __BM_TABLE_IDX(addr, PMD_SHIFT) -static pte_t bm_pte[NR_BM_PTE_TABLES][PTRS_PER_PTE] __bss_pgtbl; +static hw_pte_t bm_pte[NR_BM_PTE_TABLES][PTRS_PER_PTE] __bss_pgtbl; static pmd_t bm_pmd[PTRS_PER_PMD] __bss_pgtbl __maybe_unused; static pud_t bm_pud[PTRS_PER_PUD] __bss_pgtbl __maybe_unused;