diff options
| author | H. Peter Anvin | 2012-05-08 20:22:35 +0200 |
|---|---|---|
| committer | H. Peter Anvin | 2012-05-08 20:48:03 +0200 |
| commit | 056a43a6d3ab903a798d8ee4435ad67d6fccc3e6 (patch) | |
| tree | e7af15979dd52981873a676351ed45307bfe4a6e /arch | |
| parent | x86, realmode: Align .data section in trampoline_32.S (diff) | |
| download | kernel-qcow2-linux-056a43a6d3ab903a798d8ee4435ad67d6fccc3e6.tar.gz kernel-qcow2-linux-056a43a6d3ab903a798d8ee4435ad67d6fccc3e6.tar.xz kernel-qcow2-linux-056a43a6d3ab903a798d8ee4435ad67d6fccc3e6.zip | |
x86, realmode: Remove indirect jumps in trampoline_64.S
Remove indirect jumps in trampoline_64.S which are no longer
necessary: the realmode code can relocate the absolute jumps
correctly from the start.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-13-git-send-email-jarkko.sakkinen@intel.com
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/realmode/rm/trampoline_64.S | 15 |
1 files changed, 2 insertions, 13 deletions
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S index 66c58cf15503..77b72b45d705 100644 --- a/arch/x86/realmode/rm/trampoline_64.S +++ b/arch/x86/realmode/rm/trampoline_64.S @@ -73,7 +73,7 @@ ENTRY(trampoline_data) lmsw %ax # into protected mode # flush prefetch and jump to startup_32 - ljmpl *(startup_32_vector) + ljmpl $__KERNEL32_CS, $pa_startup_32 no_longmode: hlt @@ -113,7 +113,7 @@ ENTRY(startup_32) * EFER.LMA = 1). Now we want to jump in 64bit mode, to do that we use * the new gdt/idt that has __KERNEL_CS with CS.L = 1. */ - ljmpl *(pa_startup_64_vector) + ljmpl $__KERNEL_CS, $pa_startup_64 .section ".text64","ax" .code64 @@ -144,17 +144,6 @@ tgdt: .quad 0x00cf93000000ffff # __KERNEL_DS tgdt_end: - .balign 4 -startup_32_vector: - .long pa_startup_32 - .word __KERNEL32_CS, 0 - - .balign 4 - .globl startup_64_vector -startup_64_vector: - .long pa_startup_64 - .word __KERNEL_CS, 0 - .data .balign 4 GLOBAL(trampoline_status) |