diff options
Diffstat (limited to 'arch/x86/platform/efi')
| -rw-r--r-- | arch/x86/platform/efi/efi.c | 16 | ||||
| -rw-r--r-- | arch/x86/platform/efi/efi_64.c | 38 | ||||
| -rw-r--r-- | arch/x86/platform/efi/quirks.c | 31 |
3 files changed, 7 insertions, 78 deletions
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index e966115d105c..f6ea8f1a9d57 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -496,7 +496,7 @@ void __init efi_init(void) efi_print_memmap(); } -#if defined(CONFIG_X86_32) || defined(CONFIG_X86_UV) +#if defined(CONFIG_X86_32) void __init efi_set_executable(efi_memory_desc_t *md, bool executable) { @@ -648,7 +648,7 @@ static inline void *efi_map_next_entry_reverse(void *entry) */ static void *efi_map_next_entry(void *entry) { - if (!efi_have_uv1_memmap() && efi_enabled(EFI_64BIT)) { + if (efi_enabled(EFI_64BIT)) { /* * Starting in UEFI v2.5 the EFI_PROPERTIES_TABLE * config table feature requires us to map all entries @@ -777,11 +777,9 @@ static void __init kexec_enter_virtual_mode(void) /* * We don't do virtual mode, since we don't do runtime services, on - * non-native EFI. With the UV1 memmap, we don't do runtime services in - * kexec kernel because in the initial boot something else might - * have been mapped at these virtual addresses. + * non-native EFI. */ - if (efi_is_mixed() || efi_have_uv1_memmap()) { + if (efi_is_mixed()) { efi_memmap_unmap(); clear_bit(EFI_RUNTIME_SERVICES, &efi.flags); return; @@ -832,12 +830,6 @@ static void __init kexec_enter_virtual_mode(void) * has the runtime attribute bit set in its memory descriptor into the * efi_pgd page table. * - * The old method which used to update that memory descriptor with the - * virtual address obtained from ioremap() is still supported when the - * kernel is booted on SG1 UV1 hardware. Same old method enabled the - * runtime services to be called without having to thunk back into - * physical mode for every invocation. - * * The new method does a pagetable switch in a preemption-safe manner * so that we're in a different address space when calling a runtime * function. For function arguments passing we do copy the PUDs of the diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index 8e364c4c6768..413583f904a6 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -74,9 +74,6 @@ int __init efi_alloc_page_tables(void) pud_t *pud; gfp_t gfp_mask; - if (efi_have_uv1_memmap()) - return 0; - gfp_mask = GFP_KERNEL | __GFP_ZERO; efi_pgd = (pgd_t *)__get_free_pages(gfp_mask, PGD_ALLOCATION_ORDER); if (!efi_pgd) @@ -115,9 +112,6 @@ void efi_sync_low_kernel_mappings(void) pud_t *pud_k, *pud_efi; pgd_t *efi_pgd = efi_mm.pgd; - if (efi_have_uv1_memmap()) - return; - /* * We can share all PGD entries apart from the one entry that * covers the EFI runtime mapping space. @@ -206,9 +200,6 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages) unsigned npages; pgd_t *pgd = efi_mm.pgd; - if (efi_have_uv1_memmap()) - return 0; - /* * It can happen that the physical address of new_memmap lands in memory * which is not mapped in the EFI page table. Therefore we need to go @@ -315,9 +306,6 @@ void __init efi_map_region(efi_memory_desc_t *md) unsigned long size = md->num_pages << PAGE_SHIFT; u64 pa = md->phys_addr; - if (efi_have_uv1_memmap()) - return old_map_region(md); - /* * Make sure the 1:1 mappings are present as a catch-all for b0rked * firmware which doesn't update all internal pointers after switching @@ -420,12 +408,6 @@ void __init efi_runtime_update_mappings(void) { efi_memory_desc_t *md; - if (efi_have_uv1_memmap()) { - if (__supported_pte_mask & _PAGE_NX) - runtime_code_page_mkexec(); - return; - } - /* * Use the EFI Memory Attribute Table for mapping permissions if it * exists, since it is intended to supersede EFI_PROPERTIES_TABLE. @@ -474,10 +456,7 @@ void __init efi_runtime_update_mappings(void) void __init efi_dump_pagetable(void) { #ifdef CONFIG_EFI_PGT_DUMP - if (efi_have_uv1_memmap()) - ptdump_walk_pgd_level(NULL, &init_mm); - else - ptdump_walk_pgd_level(NULL, &efi_mm); + ptdump_walk_pgd_level(NULL, &efi_mm); #endif } @@ -849,21 +828,13 @@ efi_set_virtual_address_map(unsigned long memory_map_size, const efi_system_table_t *systab = (efi_system_table_t *)systab_phys; efi_status_t status; unsigned long flags; - pgd_t *save_pgd = NULL; if (efi_is_mixed()) return efi_thunk_set_virtual_address_map(memory_map_size, descriptor_size, descriptor_version, virtual_map); - - if (efi_have_uv1_memmap()) { - save_pgd = efi_uv1_memmap_phys_prolog(); - if (!save_pgd) - return EFI_ABORTED; - } else { - efi_switch_mm(&efi_mm); - } + efi_switch_mm(&efi_mm); kernel_fpu_begin(); @@ -879,10 +850,7 @@ efi_set_virtual_address_map(unsigned long memory_map_size, /* grab the virtually remapped EFI runtime services table pointer */ efi.runtime = READ_ONCE(systab->runtime); - if (save_pgd) - efi_uv1_memmap_phys_epilog(save_pgd); - else - efi_switch_mm(efi_scratch.prev_mm); + efi_switch_mm(efi_scratch.prev_mm); return status; } diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c index a5a469cdf5bf..5a40fe411ebd 100644 --- a/arch/x86/platform/efi/quirks.c +++ b/arch/x86/platform/efi/quirks.c @@ -381,14 +381,6 @@ static void __init efi_unmap_pages(efi_memory_desc_t *md) u64 va = md->virt_addr; /* - * To Do: Remove this check after adding functionality to unmap EFI boot - * services code/data regions from direct mapping area because the UV1 - * memory map maps EFI regions in swapper_pg_dir. - */ - if (efi_have_uv1_memmap()) - return; - - /* * EFI mixed mode has all RAM mapped to access arguments while making * EFI runtime calls, hence don't unmap EFI boot services code/data * regions. @@ -558,16 +550,6 @@ out: return ret; } -static const struct dmi_system_id sgi_uv1_dmi[] __initconst = { - { NULL, "SGI UV1", - { DMI_MATCH(DMI_PRODUCT_NAME, "Stoutland Platform"), - DMI_MATCH(DMI_PRODUCT_VERSION, "1.0"), - DMI_MATCH(DMI_BIOS_VENDOR, "SGI.COM"), - } - }, - { } /* NULL entry stops DMI scanning */ -}; - void __init efi_apply_memmap_quirks(void) { /* @@ -579,17 +561,6 @@ void __init efi_apply_memmap_quirks(void) pr_info("Setup done, disabling due to 32/64-bit mismatch\n"); efi_memmap_unmap(); } - - /* UV2+ BIOS has a fix for this issue. UV1 still needs the quirk. */ - if (dmi_check_system(sgi_uv1_dmi)) { - if (IS_ENABLED(CONFIG_X86_UV)) { - set_bit(EFI_UV1_MEMMAP, &efi.flags); - } else { - pr_warn("EFI runtime disabled, needs CONFIG_X86_UV=y on UV1\n"); - clear_bit(EFI_RUNTIME_SERVICES, &efi.flags); - efi_memmap_unmap(); - } - } } /* @@ -723,8 +694,6 @@ void efi_recover_from_page_fault(unsigned long phys_addr) /* * Make sure that an efi runtime service caused the page fault. - * "efi_mm" cannot be used to check if the page fault had occurred - * in the firmware context because the UV1 memmap doesn't use efi_pgd. */ if (efi_rts_work.efi_rts_id == EFI_NONE) return; |