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#include "kvm/kvm.h"
#include "kvm/util.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdbool.h>
#include <fcntl.h>
#define BIOS_SELECTOR 0xf000
#define BIOS_IP 0xfff0
#define BIOS_SP 0x8000
bool kvm__load_firmware(struct kvm *kvm, const char *firmware_filename)
{
struct stat st;
void *p;
int fd;
int nr;
fd = open(firmware_filename, O_RDONLY);
if (fd < 0)
return false;
if (fstat(fd, &st))
return false;
if (st.st_size > MB_FIRMWARE_BIOS_SIZE)
die("firmware image %s is too big to fit in memory (%Lu KB).\n", firmware_filename, (u64)(st.st_size / 1024));
p = guest_flat_to_host(kvm, MB_FIRMWARE_BIOS_BEGIN);
while ((nr = read(fd, p, st.st_size)) > 0)
p += nr;
kvm->arch.boot_selector = BIOS_SELECTOR;
kvm->arch.boot_ip = BIOS_IP;
kvm->arch.boot_sp = BIOS_SP;
return true;
}
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