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1 | # |
1 | # |
2 | # Copyright (C) 2006 Martin Decky |
2 | # Copyright (C) 2006 Martin Decky |
3 | # All rights reserved. |
3 | # All rights reserved. |
4 | # |
4 | # |
5 | # Redistribution and use in source and binary forms, with or without |
5 | # Redistribution and use in source and binary forms, with or without |
6 | # modification, are permitted provided that the following conditions |
6 | # modification, are permitted provided that the following conditions |
7 | # are met: |
7 | # are met: |
8 | # |
8 | # |
9 | # - Redistributions of source code must retain the above copyright |
9 | # - Redistributions of source code must retain the above copyright |
10 | # notice, this list of conditions and the following disclaimer. |
10 | # notice, this list of conditions and the following disclaimer. |
11 | # - Redistributions in binary form must reproduce the above copyright |
11 | # - Redistributions in binary form must reproduce the above copyright |
12 | # notice, this list of conditions and the following disclaimer in the |
12 | # notice, this list of conditions and the following disclaimer in the |
13 | # documentation and/or other materials provided with the distribution. |
13 | # documentation and/or other materials provided with the distribution. |
14 | # - The name of the author may not be used to endorse or promote products |
14 | # - The name of the author may not be used to endorse or promote products |
15 | # derived from this software without specific prior written permission. |
15 | # derived from this software without specific prior written permission. |
16 | # |
16 | # |
17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | # |
27 | # |
28 | 28 | ||
29 | #include <arch/boot/boot.h> |
29 | #include <arch/boot/boot.h> |
30 | #include <arch/mm/page.h> |
30 | #include <arch/mm/page.h> |
31 | #include <arch/pm.h> |
31 | #include <arch/pm.h> |
32 | 32 | ||
33 | #define ELFNOTE(name, type, desctype, descval) \ |
33 | #define ELFNOTE(name, type, desctype, descval) \ |
34 | .section .note.name; \ |
34 | .section .note.name; \ |
35 | .align 4; \ |
35 | .align 4; \ |
36 | .long 2f - 1f; \ |
36 | .long 2f - 1f; \ |
37 | .long 4f - 3f; \ |
37 | .long 4f - 3f; \ |
38 | .long type; \ |
38 | .long type; \ |
39 | 1:.asciz #name; \ |
39 | 1:.asciz #name; \ |
40 | 2:.align 4; \ |
40 | 2:.align 4; \ |
41 | 3:desctype descval; \ |
41 | 3:desctype descval; \ |
42 | 4:.align 4 |
42 | 4:.align 4 |
43 | 43 | ||
44 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz, "HelenOS") |
44 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz, "HelenOS") |
45 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz, RELEASE) |
45 | ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz, RELEASE) |
46 | ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz, "xen-3.0") |
46 | ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz, "xen-3.0") |
47 | ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long, PA2KA(BOOT_OFFSET)) |
47 | ELFNOTE(Xen, XEN_ELFNOTE_VIRT_BASE, .long, PA2KA(BOOT_OFFSET)) |
48 | ELFNOTE(Xen, XEN_ELFNOTE_PADDR_OFFSET, .long, 0) |
48 | ELFNOTE(Xen, XEN_ELFNOTE_PADDR_OFFSET, .long, 0) |
49 | ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long, kernel_image_start) |
49 | ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, .long, kernel_image_start) |
50 | ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long, hypercall_page) |
50 | ELFNOTE(Xen, XEN_ELFNOTE_HYPERCALL_PAGE, .long, hypercall_page) |
51 | ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz, "writable_page_tables|writable_descriptor_tables|auto_translated_physmap|supervisor_mode_kernel") |
51 | ELFNOTE(Xen, XEN_ELFNOTE_FEATURES, .asciz, "auto_translated_physmap|supervisor_mode_kernel") |
52 | ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "no") |
52 | ELFNOTE(Xen, XEN_ELFNOTE_PAE_MODE, .asciz, "no") |
53 | ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz, "generic") |
53 | ELFNOTE(Xen, XEN_ELFNOTE_LOADER, .asciz, "generic") |
54 | 54 | ||
55 | .text |
55 | .text |
56 | 56 | ||
57 | .code32 |
57 | .code32 |
58 | .align 4 |
58 | .align 4 |
59 | .global kernel_image_start |
59 | .global kernel_image_start |
60 | 60 | ||
61 | kernel_image_start: |
61 | kernel_image_start: |
62 | # copy start_info (esi initialized by Xen) |
62 | # copy start_info (esi initialized by Xen) |
63 | 63 | ||
64 | movl $start_info, %edi |
64 | movl $start_info, %edi |
65 | movl $START_INFO_SIZE >> 2, %ecx |
65 | movl $START_INFO_SIZE >> 2, %ecx |
66 | cld |
66 | cld |
67 | rep movsb |
67 | rep movsb |
68 | 68 | ||
69 | # switch to temporal kernel stack |
69 | # switch to temporal kernel stack |
70 | 70 | ||
71 | movl $kernel_stack, %esp |
71 | movl $kernel_stack, %esp |
72 | 72 | ||
73 | call arch_pre_main |
73 | call arch_pre_main |
74 | call main_bsp # never returns |
74 | call main_bsp # never returns |
75 | 75 | ||
76 | cli |
76 | cli |
77 | hlt |
77 | hlt |
78 | 78 | ||
79 | kernel_stack_bottom: |
79 | kernel_stack_bottom: |
80 | .space TEMP_STACK_SIZE |
80 | .space TEMP_STACK_SIZE |
81 | kernel_stack: |
81 | kernel_stack: |
82 | 82 | ||
83 | .section K_TEXT_START, "aw", @progbits |
83 | .section K_TEXT_START, "aw", @progbits |
84 | .global hypercall_page |
84 | .global hypercall_page |
85 | .org 0 |
85 | .org 0 |
86 | hypercall_page: |
86 | hypercall_page: |
87 | .space PAGE_SIZE |
87 | .space PAGE_SIZE |
88 | 88 | ||
89 | .global shared_info |
89 | .global shared_info |
90 | .org 0x1000 |
90 | .org 0x1000 |
91 | shared_info: |
91 | shared_info: |
92 | .space PAGE_SIZE |
92 | .space PAGE_SIZE |
93 | 93 | ||
94 | .global console_page |
94 | .global console_page |
95 | .org 0x2000 |
95 | .org 0x2000 |
96 | console_page: |
96 | console_page: |
97 | .space PAGE_SIZE |
97 | .space PAGE_SIZE |
98 | 98 | ||
99 | # Xen 3.0.3 ELF loader is somehow buggy |
99 | # Xen 3.0.3 ELF loader is somehow buggy |
100 | # thus this workaround |
100 | # thus this workaround |
101 | .global dummy_fill |
101 | .global dummy_fill |
102 | dummy_fill: |
102 | dummy_fill: |
103 | .space (1024 * 1024) |
103 | .space (1024 * 1024) |
104 | 104 |