[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 1/4] x86/boot: Remove high_start and ret_point
They are not needed. This form is a few bytes leaner overall, but usefully removes pieces of data from the middle of the code section. Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> CC: Keir Fraser <keir@xxxxxxx> CC: Jan Beulich <JBeulich@xxxxxxxx> --- xen/arch/x86/boot/trampoline.S | 5 +---- xen/arch/x86/boot/wakeup.S | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/xen/arch/x86/boot/trampoline.S b/xen/arch/x86/boot/trampoline.S index 4f5f8d7..ccb40fb 100644 --- a/xen/arch/x86/boot/trampoline.S +++ b/xen/arch/x86/boot/trampoline.S @@ -109,12 +109,9 @@ trampoline_protmode_entry: .code64 start64: /* Jump to high mappings. */ - mov high_start(%rip),%rax + movabs $__high_start,%rax jmpq *%rax -high_start: - .quad __high_start - .code32 trampoline_boot_cpu_entry: cmpb $0,bootsym_rel(skip_realmode,5) diff --git a/xen/arch/x86/boot/wakeup.S b/xen/arch/x86/boot/wakeup.S index a3883c1..08ea9b2 100644 --- a/xen/arch/x86/boot/wakeup.S +++ b/xen/arch/x86/boot/wakeup.S @@ -166,12 +166,9 @@ wakeup_32: .code64 wakeup_64: /* Jump to high mappings and the higher-level wakeup code. */ - movq ret_point(%rip), %rbx + movabs $__ret_point, %rbx jmp *%rbx -ret_point: - .quad __ret_point - bogus_saved_magic: movw $0x0e00 + 'S', 0xb8014 jmp bogus_saved_magic -- 1.7.10.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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