Fábio Coutada
173b2c3330
- Add kernel/arch/arm/boot.S with ARMv7 assembly entry, stack setup, BSS clear - Add kernel/arch/arm/linker.ld for QEMU virt memory layout (load at 0x40000000) - Add kernel/arch/arm/uart.c/uart.h for PL011 serial output - Add kernel/kernel.c with kernel_main() idle loop - Add kernel/Makefile for arm-none-eabi-gcc cross-compile and QEMU launch - Add kernel/README.md with build/run instructions - Ignore kernel build artifacts in .gitignore
17 lines
336 B
C
17 lines
336 B
C
/*
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* Universalisos kernel entry point.
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*/
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#include "arch/arm/uart.h"
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void kernel_main(void)
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{
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uart_init();
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uart_puts("Universalisos type-1 hypervisor booted.\r\n");
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uart_puts("Stage 1: bare-metal skeleton running on QEMU ARM virt.\r\n");
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/* Idle loop. */
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for (;;) {
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__asm__ __volatile__("wfi");
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}
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}
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