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#include <types.h>
#include <rsdp.h>
#include <libk/stdio.h>
#include <mcfg.h>
#include <heap.h>
#include <paging.h>
#include <libk/string.h>
void read_mcfgt()
{
uint64_t *mcfgt_addr = find_sys_table_addr("MCFG");
uint64_t mcfgt_cfg_addr;
size_t len;
size_t i;
if (mcfgt_addr == NULL) {
printf("MCFG not found\n");
return;
}
mcfgt_cfg_addr = (uint64_t)((uint8_t *)mcfgt_addr + sizeof(MCFGT));
map_addr((uint64_t)mcfgt_addr, (uint64_t)mcfgt_addr, FLAG_PRESENT);
MCFGT *mcfgt = (MCFGT *)kalloc(sizeof(MCFGT));
memcpy(mcfgt, mcfgt_addr, sizeof(MCFGT));
len = (mcfgt->length - sizeof(MCFGT)) / 16;
kfree(mcfgt);
config_space_mcfgt *cfg_space =
(config_space_mcfgt *)kalloc(sizeof(config_space_mcfgt));
for (i = 0; i < len; i++) {
memcpy(cfg_space, (uint64_t *)mcfgt_cfg_addr,
sizeof(config_space_mcfgt));
printf("addr: 0x%x, group: %d, start: %d, stop: %d\n",
cfg_space->base_addr, cfg_space->pci_seg_group,
cfg_space->start_pci_bus, cfg_space->end_pci_bus);
}
kfree(cfg_space);
}
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