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| author | Jarkko Sakkinen <jarkko.sakkinen@intel.com> | 2012-05-08 20:22:40 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-05-08 20:48:11 +0200 |
| commit | 8e029fcdd8702719c9179317cae9ef84ebe7027e (patch) | |
| tree | 12140b7331764ff0e0cd4e0d7bd290453d51110f /arch/x86/kernel | |
| parent | x86, realmode: Fix always-zero test in reboot_32.S (diff) | |
| download | linux-8e029fcdd8702719c9179317cae9ef84ebe7027e.tar.xz linux-8e029fcdd8702719c9179317cae9ef84ebe7027e.zip | |
x86, realmode: fix 64-bit wakeup sequence
There were number of issues in wakeup sequence:
- Wakeup stack was placed in hardcoded address.
- NX bit in EFER was not enabled.
- Initialization incorrectly set physical address
of secondary_startup_64.
- Some alignment issues.
This patch fixes these issues and in addition:
- Unifies coding conventions in .S files.
- Sets alignments of code and data right.
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-18-git-send-email-jarkko.sakkinen@intel.com
Originally-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/realmode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/realmode.c b/arch/x86/kernel/realmode.c index d85ac20bb4eb..e7bf82a409bf 100644 --- a/arch/x86/kernel/realmode.c +++ b/arch/x86/kernel/realmode.c @@ -64,7 +64,7 @@ void __init setup_real_mode(void) *((u32 *)__va(real_mode_header.boot_gdt)) = __pa(boot_gdt); #else *((u64 *) __va(real_mode_header.startup_64_smp)) = - (u64) __pa(secondary_startup_64); + (u64)secondary_startup_64; *((u64 *) __va(real_mode_header.level3_ident_pgt)) = __pa(level3_ident_pgt) + _KERNPG_TABLE; |