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kaf24@scramble.cl.cam.ac.uk
5deb88b1a9
Update 'xen version' in guest-OS images to 3.0. Signed-off-by: Keir Fraser <keir@xensource.com>
223 lines
4.6 KiB
ArmAsm
223 lines
4.6 KiB
ArmAsm
#include <os.h>
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.section __xen_guest
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.asciz "XEN_VER=3.0,LOADER=generic,PT_MODE_WRITABLE"
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.text
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#define ENTRY(X) .globl X ; X :
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.globl _start, shared_info
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#define SAVE_ALL \
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cld; \
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pushq %rdi; \
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pushq %rsi; \
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pushq %rdx; \
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pushq %rcx; \
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pushq %rax; \
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pushq %r8; \
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pushq %r9; \
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pushq %r10; \
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pushq %r11; \
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pushq %rbx; \
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pushq %rbp; \
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pushq %r12; \
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pushq %r13; \
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pushq %r14; \
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pushq %r15;
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#define RESTORE_ALL \
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popq %r15; \
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popq %r14; \
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popq %r13; \
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popq %r12; \
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popq %rbp; \
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popq %rbx; \
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popq %r11; \
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popq %r10; \
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popq %r9; \
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popq %r8; \
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popq %rax; \
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popq %rcx; \
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popq %rdx; \
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popq %rsi; \
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popq %rdi
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_start:
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cld
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movq stack_start(%rip),%rsp
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movq %rsi,%rdi
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call start_kernel
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stack_start:
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.quad stack+8192
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/* Unpleasant -- the PTE that maps this page is actually overwritten */
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/* to map the real shared-info page! :-) */
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.org 0x1000
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shared_info:
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.org 0x2000
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ENTRY(hypervisor_callback)
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popq %rcx
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popq %r11
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iretq
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ENTRY(failsafe_callback)
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popq %rcx
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popq %r11
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iretq
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error_code:
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SAVE_ALL
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movq %rsp,%rdi
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movl 15*8+4(%rsp),%eax
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leaq exception_table(%rip),%rdx
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callq *(%rdx,%rax,8)
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RESTORE_ALL
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addq $8,%rsp
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iretq
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ENTRY(divide_error)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_divide_error,4(%rsp)
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jmp error_code
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ENTRY(coprocessor_error)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_copro_error,4(%rsp)
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jmp error_code
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ENTRY(simd_coprocessor_error)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_simd_error,4(%rsp)
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jmp error_code
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ENTRY(device_not_available)
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popq %rcx
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popq %r11
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movl $TRAP_no_device,4(%rsp)
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jmp error_code
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ENTRY(debug)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_debug,4(%rsp)
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jmp error_code
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ENTRY(int3)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_int3,4(%rsp)
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jmp error_code
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ENTRY(overflow)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_overflow,4(%rsp)
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jmp error_code
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ENTRY(bounds)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_bounds,4(%rsp)
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jmp error_code
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ENTRY(invalid_op)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_invalid_op,4(%rsp)
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jmp error_code
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ENTRY(coprocessor_segment_overrun)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_copro_seg,4(%rsp)
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jmp error_code
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ENTRY(invalid_TSS)
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popq %rcx
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popq %r11
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movl $TRAP_invalid_tss,4(%rsp)
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jmp error_code
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ENTRY(segment_not_present)
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popq %rcx
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popq %r11
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movl $TRAP_no_segment,4(%rsp)
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jmp error_code
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ENTRY(stack_segment)
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popq %rcx
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popq %r11
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movl $TRAP_stack_error,4(%rsp)
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jmp error_code
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ENTRY(general_protection)
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popq %rcx
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popq %r11
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movl $TRAP_gp_fault,4(%rsp)
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jmp error_code
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ENTRY(alignment_check)
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popq %rcx
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popq %r11
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movl $TRAP_alignment_check,4(%rsp)
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jmp error_code
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ENTRY(virt_cr2)
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.quad 0
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ENTRY(page_fault)
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popq %rcx
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popq %r11
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popq virt_cr2(%rip)
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movl $TRAP_page_fault,4(%rsp)
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jmp error_code
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ENTRY(machine_check)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_machine_check,4(%rsp)
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jmp error_code
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ENTRY(spurious_interrupt_bug)
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popq %rcx
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popq %r11
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pushq $0
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movl $TRAP_spurious_int,4(%rsp)
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jmp error_code
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ENTRY(exception_table)
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.quad do_divide_error
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.quad do_debug
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.quad 0 # nmi
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.quad do_int3
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.quad do_overflow
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.quad do_bounds
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.quad do_invalid_op
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.quad 0
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.quad 0
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.quad do_coprocessor_segment_overrun
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.quad do_invalid_TSS
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.quad do_segment_not_present
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.quad do_stack_segment
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.quad do_general_protection
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.quad do_page_fault
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.quad do_spurious_interrupt_bug
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.quad do_coprocessor_error
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.quad do_alignment_check
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.quad do_machine_check
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.quad do_simd_coprocessor_error
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