From e09edb5d54e39bd9509a1dc450df5ab320759f97 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Fri, 5 Jul 2024 19:38:11 +0300 Subject: allow booting with Qemu's -kernel flag directly + Took some fairly significant changes, for one the kernel is no longer relocated at the start of a boot, instead it sits wherever the user decides the kernel should sit. Similarly, the initial kernel stack and page table are stored within the binary, slightly bloating the size but making it much safer to boot since there's really no chance of us overwriting the fdt or initrd in memory. --- include/arch/vmem.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/arch/vmem.h') diff --git a/include/arch/vmem.h b/include/arch/vmem.h index 118e6ff..238b12a 100644 --- a/include/arch/vmem.h +++ b/include/arch/vmem.h @@ -140,6 +140,8 @@ struct vmem *init_vmem(void *fdt); vm_t setup_kernel_io(struct vmem *b, vm_t paddr); #endif +struct vmem *direct_mapping(); + /** * Create new virtual memory space. * @@ -171,4 +173,7 @@ stat_t destroy_vmem(struct vmem *b); */ void clone_uvmem(struct vmem * restrict r, struct vmem * restrict b); +__noreturn void to_kernelspace(void *fdt, uintptr_t load_addr, + struct vmem *direct_mapping, pm_t ram_base, + pm_t dmap); #endif /* KMI_ARCH_PAGES_H */ -- cgit v1.3