diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/efi.c | 12 | ||||
| -rw-r--r-- | arch/x86/kernel/efi_64.c | 32 | ||||
| -rw-r--r-- | arch/x86/kernel/i8253.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/reboot.c | 46 | ||||
| -rw-r--r-- | arch/x86/mm/ioremap.c | 4 | ||||
| -rw-r--r-- | arch/x86/mm/pageattr.c | 4 | ||||
| -rw-r--r-- | arch/x86/xen/enlighten.c | 4 |
7 files changed, 64 insertions, 40 deletions
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 32dd62b..cbdf9ba 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -384,9 +384,6 @@ static void __init runtime_code_page_mkexec(void) efi_memory_desc_t *md; void *p; - if (!(__supported_pte_mask & _PAGE_NX)) - return; - /* Make EFI runtime service code area executable */ for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { md = p; @@ -428,9 +425,6 @@ void __init efi_enter_virtual_mode(void) else va = efi_ioremap(md->phys_addr, size); - if (md->attribute & EFI_MEMORY_WB) - set_memory_uc(md->virt_addr, size); - md->virt_addr = (u64) (unsigned long) va; if (!va) { @@ -439,6 +433,9 @@ void __init efi_enter_virtual_mode(void) continue; } + if (!(md->attribute & EFI_MEMORY_WB)) + set_memory_uc(md->virt_addr, size); + systab = (u64) (unsigned long) efi_phys.systab; if (md->phys_addr <= systab && systab < end) { systab += md->virt_addr - md->phys_addr; @@ -476,7 +473,8 @@ void __init efi_enter_virtual_mode(void) efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count; efi.reset_system = virt_efi_reset_system; efi.set_virtual_address_map = virt_efi_set_virtual_address_map; - runtime_code_page_mkexec(); + if (__supported_pte_mask & _PAGE_NX) + runtime_code_page_mkexec(); early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); memmap.map = NULL; } diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c index 09d5c23..d143a1e 100644 --- a/arch/x86/kernel/efi_64.c +++ b/arch/x86/kernel/efi_64.c @@ -35,6 +35,7 @@ #include <asm/tlbflush.h> #include <asm/proto.h> #include <asm/efi.h> +#include <asm/cacheflush.h> static pgd_t save_pgd __initdata; static unsigned long efi_flags __initdata; @@ -43,22 +44,15 @@ static void __init early_mapping_set_exec(unsigned long start, unsigned long end, int executable) { - pte_t *kpte; - unsigned int level; - - while (start < end) { - kpte = lookup_address((unsigned long)__va(start), &level); - BUG_ON(!kpte); - if (executable) - set_pte(kpte, pte_mkexec(*kpte)); - else - set_pte(kpte, __pte((pte_val(*kpte) | _PAGE_NX) & \ - __supported_pte_mask)); - if (level == PG_LEVEL_4K) - start = (start + PAGE_SIZE) & PAGE_MASK; - else - start = (start + PMD_SIZE) & PMD_MASK; - } + unsigned long num_pages; + + start &= PMD_MASK; + end = (end + PMD_SIZE - 1) & PMD_MASK; + num_pages = (end - start) >> PAGE_SHIFT; + if (executable) + set_memory_x((unsigned long)__va(start), num_pages); + else + set_memory_nx((unsigned long)__va(start), num_pages); } static void __init early_runtime_code_mapping_set_exec(int executable) @@ -74,7 +68,7 @@ static void __init early_runtime_code_mapping_set_exec(int executable) md = p; if (md->type == EFI_RUNTIME_SERVICES_CODE) { unsigned long end; - end = md->phys_addr + (md->num_pages << PAGE_SHIFT); + end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT); early_mapping_set_exec(md->phys_addr, end, executable); } } @@ -84,8 +78,8 @@ void __init efi_call_phys_prelog(void) { unsigned long vaddress; - local_irq_save(efi_flags); early_runtime_code_mapping_set_exec(1); + local_irq_save(efi_flags); vaddress = (unsigned long)__va(0x0UL); save_pgd = *pgd_offset_k(0x0UL); set_pgd(pgd_offset_k(0x0UL), *pgd_offset_k(vaddress)); @@ -98,9 +92,9 @@ void __init efi_call_phys_epilog(void) * After the lock is released, the original page table is restored. */ set_pgd(pgd_offset_k(0x0UL), save_pgd); - early_runtime_code_mapping_set_exec(0); __flush_tlb_all(); local_irq_restore(efi_flags); + early_runtime_code_mapping_set_exec(0); } void __init efi_reserve_bootmem(void) diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c index ef62b07..8540abe 100644 --- a/arch/x86/kernel/i8253.c +++ b/arch/x86/kernel/i8253.c @@ -95,7 +95,7 @@ static int pit_next_event(unsigned long delta, struct clock_event_device *evt) * registered. This mechanism replaces the previous #ifdef LOCAL_APIC - * !using_apic_timer decisions in do_timer_interrupt_hook() */ -struct clock_event_device pit_clockevent = { +static struct clock_event_device pit_clockevent = { .name = "pit", .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT, .set_mode = init_pit_timer, diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 5818dc2..7fd6ac4 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -326,7 +326,7 @@ static inline void kb_wait(void) } } -void machine_emergency_restart(void) +static void native_machine_emergency_restart(void) { int i; @@ -376,7 +376,7 @@ void machine_emergency_restart(void) } } -void machine_shutdown(void) +static void native_machine_shutdown(void) { /* Stop the cpus and apics */ #ifdef CONFIG_SMP @@ -420,7 +420,7 @@ void machine_shutdown(void) #endif } -void machine_restart(char *__unused) +static void native_machine_restart(char *__unused) { printk("machine restart\n"); @@ -429,11 +429,11 @@ void machine_restart(char *__unused) machine_emergency_restart(); } -void machine_halt(void) +static void native_machine_halt(void) { } -void machine_power_off(void) +static void native_machine_power_off(void) { if (pm_power_off) { if (!reboot_force) @@ -443,9 +443,35 @@ void machine_power_off(void) } struct machine_ops machine_ops = { - .power_off = machine_power_off, - .shutdown = machine_shutdown, - .emergency_restart = machine_emergency_restart, - .restart = machine_restart, - .halt = machine_halt + .power_off = native_machine_power_off, + .shutdown = native_machine_shutdown, + .emergency_restart = native_machine_emergency_restart, + .restart = native_machine_restart, + .halt = native_machine_halt }; + +void machine_power_off(void) +{ + machine_ops.power_off(); +} + +void machine_shutdown(void) +{ + machine_ops.shutdown(); +} + +void machine_emergency_restart(void) +{ + machine_ops.emergency_restart(); +} + +void machine_restart(char *cmd) +{ + machine_ops.restart(cmd); +} + +void machine_halt(void) +{ + machine_ops.halt(); +} + diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index a4897a8..9f42d7e 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -265,7 +265,9 @@ static __initdata pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) { - pgd_t *pgd = &swapper_pg_dir[pgd_index(addr)]; + /* Don't assume we're using swapper_pg_dir at this point */ + pgd_t *base = __va(read_cr3()); + pgd_t *pgd = &base[pgd_index(addr)]; pud_t *pud = pud_offset(pgd, addr); pmd_t *pmd = pmd_offset(pud, addr); diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 440210a..bd61ed1 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -275,8 +275,8 @@ try_preserve_large_page(pte_t *kpte, unsigned long address, break; #ifdef CONFIG_X86_64 case PG_LEVEL_1G: - psize = PMD_PAGE_SIZE; - pmask = PMD_PAGE_MASK; + psize = PUD_PAGE_SIZE; + pmask = PUD_PAGE_MASK; break; #endif default: diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index de647bc..49e5358 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -798,6 +798,10 @@ static __init void xen_pagetable_setup_start(pgd_t *base) * added to the table can be prepared properly for Xen. */ xen_write_cr3(__pa(base)); + + /* Unpin initial Xen pagetable */ + pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, + PFN_DOWN(__pa(xen_start_info->pt_base))); } static __init void xen_pagetable_setup_done(pgd_t *base) |
