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gerrit-public.fairphone.software / kernel / msm / 7077c33d81a8d790135ae87cd19e6efcb075c23a / . / arch / x86 / xen / xen-head.S
blob: a9cac9dc04be2ecaf31a9fdc2cf9727970020a27 [file] [log] [blame]
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]1/* Xen-specific pieces of head.S, intended to be included in the right
2 place in head.S */
3
4#ifdef CONFIG_XEN
5
6#include <linux/elfnote.h>
Sam Ravnborg08b6d292008-01-30 13:33:25 +0100[diff] [blame]7#include <linux/init.h>
Jeremy Fitzhardinge7077c332008-07-08 15:06:35 -0700[diff] [blame^]8
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]9#include <asm/boot.h>
Jeremy Fitzhardinge7077c332008-07-08 15:06:35 -0700[diff] [blame^]10#include <asm/asm.h>
11
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]12#include <xen/interface/elfnote.h>
Jeremy Fitzhardinge7e0edc12008-05-31 01:33:04 +0100[diff] [blame]13#include <asm/xen/interface.h>
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]14
Sam Ravnborg08b6d292008-01-30 13:33:25 +0100[diff] [blame]15 __INIT
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]16ENTRY(startup_xen)
17 movl %esi,xen_start_info
18 cld
19 movl $(init_thread_union+THREAD_SIZE),%esp
20 jmp xen_start_kernel
Sam Ravnborg08b6d292008-01-30 13:33:25 +0100[diff] [blame]21
22 __FINIT
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]23
Jeremy Fitzhardingea987b162008-06-16 15:01:56 -0700[diff] [blame]24.pushsection .text
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]25 .align PAGE_SIZE_asm
26ENTRY(hypercall_page)
Jeremy Fitzhardinge7077c332008-07-08 15:06:35 -0700[diff] [blame^]27 .skip PAGE_SIZE_asm
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]28.popsection
29
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]30 ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux")
31 ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6")
32 ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0")
Jeremy Fitzhardinge7077c332008-07-08 15:06:35 -0700[diff] [blame^]33 ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, _ASM_PTR __PAGE_OFFSET)
34 ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, _ASM_PTR startup_xen)
35 ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, _ASM_PTR hypercall_page)
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]36 ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz "!writable_page_tables|pae_pgdir_above_4gb")
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]37 ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz "yes")
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]38 ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz "generic")
Jeremy Fitzhardinge7e0edc12008-05-31 01:33:04 +0100[diff] [blame]39 ELFNOTE(Xen, XEN_ELFNOTE_L1_MFN_VALID,
40 .quad _PAGE_PRESENT; .quad _PAGE_PRESENT)
41 ELFNOTE(Xen, XEN_ELFNOTE_SUSPEND_CANCEL, .long 1)
Jeremy Fitzhardinge7077c332008-07-08 15:06:35 -0700[diff] [blame^]42 ELFNOTE(Xen, XEN_ELFNOTE_HV_START_LOW, _ASM_PTR __HYPERVISOR_VIRT_START)
Jeremy Fitzhardinge5ead97c2007-07-17 18:37:04 -0700[diff] [blame]43
44#endif /*CONFIG_XEN */