Messages in this thread Patch in this message | | | From | Ashish Kalra <> | Subject | [PATCH] x86/mm: fix pg_level_to_pfn for 5-level paging mode. | Date | Fri, 13 Oct 2023 19:17:03 +0000 |
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From: Ashish Kalra <ashish.kalra@amd.com>
Add support for 5-level paging in pg_level_to_pfn().
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com> --- arch/x86/mm/mem_encrypt_amd.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/arch/x86/mm/mem_encrypt_amd.c b/arch/x86/mm/mem_encrypt_amd.c index 6faea41e99b6..45914568596a 100644 --- a/arch/x86/mm/mem_encrypt_amd.c +++ b/arch/x86/mm/mem_encrypt_amd.c @@ -267,6 +267,10 @@ static unsigned long pg_level_to_pfn(int level, pte_t *kpte, pgprot_t *ret_prot) pfn = pud_pfn(*(pud_t *)kpte); prot = pud_pgprot(*(pud_t *)kpte); break; + case PG_LEVEL_512G: + pfn = p4d_pfn(*(p4d_t *)kpte); + prot = p4d_pgprot(*(p4d_t *)kpte); + break; default: WARN_ONCE(1, "Invalid level for kpte\n"); return 0; -- 2.25.1
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