kern/arch/riscv/cpuinfo.c

#include <arch/arch.h>
#include <arch/mmu.h>
#include <assert.h>
#include <pmap.h>
#include <smp.h>
#include <stdio.h>
#include <umem.h>

static void static_asserts_can_go_here(void)
{
	static_assert(SIZEOF_HW_TRAPFRAME == sizeof(struct hw_trapframe));
}

void print_cpuinfo(void)
{
	int id = mfpcr(PCR_IMPL);
	const char *name = "(unknown implementation)";
	if (id == 1)
		name = "ISA Simulator";
	else if (id == 2)
		name = "Rocket64";
	cprintf("CPU Info: RISC-V %s\n", name);
}

#warning "convert pgdir* to pgdir_t"
void show_mapping(pgdir_t *pt, uintptr_t start, size_t size)
{
	pte_t *pte;
	uintptr_t i;
	page_t *page;

	cprintf(
	    "      Virtual            Physical      SR SW SX UR UW UX D R\n");
	cprintf(
	    "------------------------------------------------------------\n");
	for (i = 0; i < size; i += PGSIZE, start += PGSIZE) {
		page = page_lookup(pt, (void *)start, &pte);
		cprintf("%016p  ", start);
		if (page) {
			cprintf("%016p  %1d  %1d  %1d  %1d  %1d  %1d %1d %1d\n",
			        page2pa(page), !!(*pte & PTE_SR),
			        !!(*pte & PTE_SW), !!(*pte & PTE_SX),
			        !!(*pte & PTE_UR), !!(*pte & PTE_UW),
			        !!(*pte & PTE_UX), !!(*pte & PTE_D),
			        !!(*pte & PTE_R));
		} else
			cprintf("%016p\n", 0);
	}
}