diff options
author | Huang, Ying <ying.huang@intel.com> | 2008-01-30 12:32:11 (GMT) |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 12:32:11 (GMT) |
commit | 8b2cb7a8f531d6ca72a8aff873b9bb1c6b3122ba (patch) | |
tree | f53edab6bdc4e1f39ef2cea8d13f15242617262e /arch/x86/kernel | |
parent | bfd074e05bdb69652d24ebc60b126899174ca788 (diff) | |
download | linux-8b2cb7a8f531d6ca72a8aff873b9bb1c6b3122ba.tar.xz |
x86: 32-bit EFI runtime service support: fixes in sync with 64-bit support
support according to fixes of x86_64 support.
- Delete efi_rt_lock because it is used during system early boot,
before SMP is initialized.
- Change local_flush_tlb() to __flush_tlb_all() to flush global page
mapping.
- Clean up includes.
- Revise Kconfig description.
- Enable noefi kernel parameter on i386.
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r-- | arch/x86/kernel/efi.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/efi_32.c | 25 | ||||
-rw-r--r-- | arch/x86/kernel/efi_64.c | 7 | ||||
-rw-r--r-- | arch/x86/kernel/setup_32.c | 6 |
4 files changed, 15 insertions, 30 deletions
diff --git a/arch/x86/kernel/efi.c b/arch/x86/kernel/efi.c index 0a61522..2939b01 100644 --- a/arch/x86/kernel/efi.c +++ b/arch/x86/kernel/efi.c @@ -55,6 +55,13 @@ struct efi_memory_map memmap; struct efi efi_phys __initdata; static efi_system_table_t efi_systab __initdata; +static int __init setup_noefi(char *arg) +{ + efi_enabled = 0; + return 0; +} +early_param("noefi", setup_noefi); + static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc) { return efi_call_virt2(get_time, tm, tc); diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c index 30f9371..afd2c3b 100644 --- a/arch/x86/kernel/efi_32.c +++ b/arch/x86/kernel/efi_32.c @@ -20,27 +20,15 @@ */ #include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mm.h> #include <linux/types.h> -#include <linux/time.h> -#include <linux/spinlock.h> -#include <linux/bootmem.h> #include <linux/ioport.h> -#include <linux/module.h> #include <linux/efi.h> -#include <linux/kexec.h> -#include <asm/setup.h> #include <asm/io.h> #include <asm/page.h> #include <asm/pgtable.h> -#include <asm/processor.h> -#include <asm/desc.h> #include <asm/tlbflush.h> -#define PFX "EFI: " - /* * To make EFI call EFI runtime service in physical addressing mode we need * prelog/epilog before/after the invocation to disable interrupt, to @@ -49,16 +37,14 @@ */ static unsigned long efi_rt_eflags; -static DEFINE_SPINLOCK(efi_rt_lock); static pgd_t efi_bak_pg_dir_pointer[2]; -void efi_call_phys_prelog(void) __acquires(efi_rt_lock) +void efi_call_phys_prelog(void) { unsigned long cr4; unsigned long temp; struct desc_ptr gdt_descr; - spin_lock(&efi_rt_lock); local_irq_save(efi_rt_eflags); /* @@ -88,14 +74,14 @@ void efi_call_phys_prelog(void) __acquires(efi_rt_lock) /* * After the lock is released, the original page table is restored. */ - local_flush_tlb(); + __flush_tlb_all(); gdt_descr.address = __pa(get_cpu_gdt_table(0)); gdt_descr.size = GDT_SIZE - 1; load_gdt(&gdt_descr); } -void efi_call_phys_epilog(void) __releases(efi_rt_lock) +void efi_call_phys_epilog(void) { unsigned long cr4; struct desc_ptr gdt_descr; @@ -119,10 +105,9 @@ void efi_call_phys_epilog(void) __releases(efi_rt_lock) /* * After the lock is released, the original page table is restored. */ - local_flush_tlb(); + __flush_tlb_all(); local_irq_restore(efi_rt_eflags); - spin_unlock(&efi_rt_lock); } /* @@ -135,7 +120,7 @@ void __init efi_map_memmap(void) memmap.map = bt_ioremap((unsigned long) memmap.phys_map, (memmap.nr_map * memmap.desc_size)); if (memmap.map == NULL) - printk(KERN_ERR PFX "Could not remap the EFI memmap!\n"); + printk(KERN_ERR "Could not remap the EFI memmap!\n"); memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size); } diff --git a/arch/x86/kernel/efi_64.c b/arch/x86/kernel/efi_64.c index f2000db..269de2e 100644 --- a/arch/x86/kernel/efi_64.c +++ b/arch/x86/kernel/efi_64.c @@ -40,13 +40,6 @@ static pgd_t save_pgd __initdata; static unsigned long efi_flags __initdata; -static int __init setup_noefi(char *arg) -{ - efi_enabled = 0; - return 0; -} -early_param("noefi", setup_noefi); - static void __init early_mapping_set_exec(unsigned long start, unsigned long end, int executable) diff --git a/arch/x86/kernel/setup_32.c b/arch/x86/kernel/setup_32.c index 2e805da..704550f 100644 --- a/arch/x86/kernel/setup_32.c +++ b/arch/x86/kernel/setup_32.c @@ -648,9 +648,6 @@ void __init setup_arch(char **cmdline_p) printk(KERN_INFO "BIOS-provided physical RAM map:\n"); print_memory_map(memory_setup()); - if (efi_enabled) - efi_init(); - copy_edd(); if (!boot_params.hdr.root_flags) @@ -677,6 +674,9 @@ void __init setup_arch(char **cmdline_p) strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; + if (efi_enabled) + efi_init(); + max_low_pfn = setup_memory(); #ifdef CONFIG_VMI |