linux/arch/x86/realmode/rm/header.S

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/*
* Real-mode blob header; this should match realmode.h and be
* readonly; for mutable data instead add pointers into the .data
* or .bss sections as appropriate.
*/
#include <linux/linkage.h>
#include <asm/page_types.h>
.section ".header", "a"
ENTRY(real_mode_header)
.long pa_text_start
.long pa_ro_end
.long pa_end
#ifdef CONFIG_X86_32
.long pa_machine_real_restart_asm
#endif
/* SMP trampoline */
.long pa_trampoline_data
.long pa_trampoline_status
#ifdef CONFIG_X86_32
.long pa_startup_32_smp
.long pa_boot_gdt
#else
.long pa_startup_64_smp
.long pa_level3_ident_pgt
.long pa_level3_kernel_pgt
#endif
/* ACPI sleep */
#ifdef CONFIG_ACPI_SLEEP
.long pa_wakeup_start
.long pa_wakeup_header
#endif
END(real_mode_header)