diff options
Diffstat (limited to 'arch/x86/kernel/head64.c')
| -rw-r--r-- | arch/x86/kernel/head64.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 1f0ddcc9675c..5cd0b72a0283 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -102,7 +102,7 @@ unsigned long __head __startup_64(unsigned long physaddr) pud = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr); pmd = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr); - pgtable_flags = _KERNPG_TABLE + sme_get_me_mask(); + pgtable_flags = _KERNPG_TABLE_NOENC + sme_get_me_mask(); if (IS_ENABLED(CONFIG_X86_5LEVEL)) { p4d = fixup_pointer(early_dynamic_pgts[next_early_pgt++], physaddr); @@ -177,7 +177,7 @@ static void __init reset_early_page_tables(void) { memset(early_top_pgt, 0, sizeof(pgd_t)*(PTRS_PER_PGD-1)); next_early_pgt = 0; - write_cr3(__pa_nodebug(early_top_pgt)); + write_cr3(__sme_pa_nodebug(early_top_pgt)); } /* Create a new PMD entry */ @@ -310,6 +310,13 @@ asmlinkage __visible void __init x86_64_start_kernel(char * real_mode_data) clear_page(init_top_pgt); + /* + * SME support may update early_pmd_flags to include the memory + * encryption mask, so it needs to be called before anything + * that may generate a page fault. + */ + sme_early_init(); + kasan_early_init(); for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) |