limine/common/menu_thunk.asm_aarch64

.section .data

.align 3
stack_at_first_entry:
    .quad 0

.section .text

.global menu
.extern _menu

menu:
    adrp x8, stack_at_first_entry
    ldr x9, [x8, :lo12:stack_at_first_entry]
    cbz x9, 1f
    mov sp, x9
    b 2f
1:
    mov x9, sp
    str x9, [x8, :lo12:stack_at_first_entry]
2:
    mov x30, xzr
    mov x29, xzr

    b _menu
Initial AArch64 port (#205) * Initial aarch64 port * Enable chainload on aarch64 No changes necessary since it's all UEFI anyway. * Add specification for Limine protocol for aarch64 * PROTOCOL: Specify state of information in DT /chosen node * common: Add spinup code for aarch64 * common: Port elf and term to aarch64 * common: Port vmm to aarch64 Also prepare to drop VMM_FLAG_PRESENT on x86. * protos: Port limine boot protocol to aarch64 Also drop VMM_FLAG_PRESENT since we never unmap pages anyway. * test: Add DTB request * PROTOCOL: Port SMP request to aarch64 * cpu: Add cache maintenance functions for aarch64 * protos/limine, sys: Port SMP to aarch64 Also move common asm macros into a header file. * test: Start up APs * vmm: Unify get_next_level and implement large page splitting * protos/limine: Map framebuffer using correct caching mode on AArch64 * CI: Fix GCC build for aarch64 * entry, menu: Replace uses of naked attribute with separate asm file GCC does not understand the naked attribute on aarch64, and didn't understand it for x86 in older versions. 2022-08-18 18:32:54 +03:00			`.section .data`

common: fix alignment of variable in AArch64 menu thunk Fixes a problem that sometimes occured due to a specific relocation being used for the misaligned variable. 2022-08-24 22:15:37 +03:00			`.align 3`
Initial AArch64 port (#205) * Initial aarch64 port * Enable chainload on aarch64 No changes necessary since it's all UEFI anyway. * Add specification for Limine protocol for aarch64 * PROTOCOL: Specify state of information in DT /chosen node * common: Add spinup code for aarch64 * common: Port elf and term to aarch64 * common: Port vmm to aarch64 Also prepare to drop VMM_FLAG_PRESENT on x86. * protos: Port limine boot protocol to aarch64 Also drop VMM_FLAG_PRESENT since we never unmap pages anyway. * test: Add DTB request * PROTOCOL: Port SMP request to aarch64 * cpu: Add cache maintenance functions for aarch64 * protos/limine, sys: Port SMP to aarch64 Also move common asm macros into a header file. * test: Start up APs * vmm: Unify get_next_level and implement large page splitting * protos/limine: Map framebuffer using correct caching mode on AArch64 * CI: Fix GCC build for aarch64 * entry, menu: Replace uses of naked attribute with separate asm file GCC does not understand the naked attribute on aarch64, and didn't understand it for x86 in older versions. 2022-08-18 18:32:54 +03:00			`stack_at_first_entry:`
			`.quad 0`

			`.section .text`

			`.global menu`
			`.extern _menu`

			`menu:`
			`adrp x8, stack_at_first_entry`
			`ldr x9, [x8, :lo12:stack_at_first_entry]`
			`cbz x9, 1f`
			`mov sp, x9`
			`b 2f`
			`1:`
			`mov x9, sp`
			`str x9, [x8, :lo12:stack_at_first_entry]`
			`2:`
			`mov x30, xzr`
			`mov x29, xzr`

			`b _menu`