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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-31 13:53:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-31 13:53:43 +0200 |
| commit | 7bee946358c3cb957d4aa648fc5ab3cad0b232d0 (patch) | |
| tree | 693061ebde2abc35ecc846e5084630d7225aaaff /arch/x86/boot/pm.c | |
| parent | d820ac4c2fa881079e6b689d2098adce337558ae (diff) | |
| parent | 15f7176eb1cccec0a332541285ee752b935c1c85 (diff) | |
| download | op-kernel-dev-7bee946358c3cb957d4aa648fc5ab3cad0b232d0.zip op-kernel-dev-7bee946358c3cb957d4aa648fc5ab3cad0b232d0.tar.gz | |
Merge branch 'linus' into locking-for-linus
Conflicts:
lib/Kconfig.debug
Diffstat (limited to 'arch/x86/boot/pm.c')
| -rw-r--r-- | arch/x86/boot/pm.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/arch/x86/boot/pm.c b/arch/x86/boot/pm.c index 85a1cd8..8062f89 100644 --- a/arch/x86/boot/pm.c +++ b/arch/x86/boot/pm.c @@ -33,47 +33,6 @@ static void realmode_switch_hook(void) } /* - * A zImage kernel is loaded at 0x10000 but wants to run at 0x1000. - * A bzImage kernel is loaded and runs at 0x100000. - */ -static void move_kernel_around(void) -{ - /* Note: rely on the compile-time option here rather than - the LOADED_HIGH flag. The Qemu kernel loader unconditionally - sets the loadflags to zero. */ -#ifndef __BIG_KERNEL__ - u16 dst_seg, src_seg; - u32 syssize; - - dst_seg = 0x1000 >> 4; - src_seg = 0x10000 >> 4; - syssize = boot_params.hdr.syssize; /* Size in 16-byte paragraphs */ - - while (syssize) { - int paras = (syssize >= 0x1000) ? 0x1000 : syssize; - int dwords = paras << 2; - - asm volatile("pushw %%es ; " - "pushw %%ds ; " - "movw %1,%%es ; " - "movw %2,%%ds ; " - "xorw %%di,%%di ; " - "xorw %%si,%%si ; " - "rep;movsl ; " - "popw %%ds ; " - "popw %%es" - : "+c" (dwords) - : "r" (dst_seg), "r" (src_seg) - : "esi", "edi"); - - syssize -= paras; - dst_seg += paras; - src_seg += paras; - } -#endif -} - -/* * Disable all interrupts at the legacy PIC. */ static void mask_all_interrupts(void) @@ -147,9 +106,6 @@ void go_to_protected_mode(void) /* Hook before leaving real mode, also disables interrupts */ realmode_switch_hook(); - /* Move the kernel/setup to their final resting places */ - move_kernel_around(); - /* Enable the A20 gate */ if (enable_a20()) { puts("A20 gate not responding, unable to boot...\n"); |
