Exemplos de hypervisor_decode_legacy em C++ (Cpp)

Exemplo n.º 1

Arquivo: lscpu-dmi.c Projeto: sebras/util-linux

int read_hypervisor_dmi(void)
{
	int rc = HYPER_NONE;
	uint8_t *buf = NULL;
	size_t fp = 0;

	if (sizeof(uint8_t) != 1
	    || sizeof(uint16_t) != 2
	    || sizeof(uint32_t) != 4
	    || '\0' != 0)
		return rc;

	rc = hypervisor_decode_sysfw();
	if (rc >= 0)
		return rc;

	/* First try EFI (ia64, Intel-based Mac) */
	switch (address_from_efi(&fp)) {
		case EFI_NOT_FOUND:
			goto memory_scan;
		case EFI_NO_SMBIOS:
			goto done;
	}

	buf = get_mem_chunk(fp, 0x20, _PATH_DEV_MEM);
	if (!buf)
		goto done;

	rc = hypervisor_decode_smbios(buf, _PATH_DEV_MEM);
	if (rc)
		goto done;
	free(buf);
	buf = NULL;
memory_scan:
#if defined(__x86_64__) || defined(__i386__)
	/* Fallback to memory scan (x86, x86_64) */
	buf = get_mem_chunk(0xF0000, 0x10000, _PATH_DEV_MEM);
	if (!buf)
		goto done;

	for (fp = 0; fp <= 0xFFF0; fp += 16) {
		if (memcmp(buf + fp, "_SM_", 4) == 0 && fp <= 0xFFE0) {
			rc = hypervisor_decode_smbios(buf + fp, _PATH_DEV_MEM);
			if (rc == -1)
				fp += 16;

		} else if (memcmp(buf + fp, "_DMI_", 5) == 0)
			rc = hypervisor_decode_legacy(buf + fp, _PATH_DEV_MEM);

		if (rc >= 0)
			break;
	}
#endif
done:
	free(buf);
	return rc;
}

Exemplo n.º 2

Arquivo: lscpu-dmi.c Projeto: AnunkunramA/util-linux

int read_hypervisor_dmi(void)
{
	int ret = HYPER_NONE;
	uint8_t *buf = NULL;
	size_t fp = 0;

	if (sizeof(uint8_t) != 1
	    || sizeof(uint16_t) != 2
	    || sizeof(uint32_t) != 4
	    || '\0' != 0)
		return ret;

	/* First try EFI (ia64, Intel-based Mac) */
	switch (address_from_efi(&fp)) {
		case EFI_NOT_FOUND:
			goto memory_scan;
		case EFI_NO_SMBIOS:
			goto exit_free;
	}

	buf = get_mem_chunk(fp, 0x20, _PATH_DEV_MEM);
	if (!buf)
		goto exit_free;

	if (hypervisor_decode_smbios(buf, _PATH_DEV_MEM))
		goto done;

memory_scan:
	/* Fallback to memory scan (x86, x86_64) */
	buf = get_mem_chunk(0xF0000, 0x10000, _PATH_DEV_MEM);
	if (!buf)
		goto exit_free;

	for (fp = 0; fp <= 0xFFF0; fp += 16) {
		if (memcmp(buf + fp, "_SM_", 4) == 0 && fp <= 0xFFE0) {
			if ((ret = hypervisor_decode_smbios(buf + fp,
						 _PATH_DEV_MEM)) == -1)
				fp += 16;

		} else if (memcmp(buf + fp, "_DMI_", 5) == 0)
			ret = hypervisor_decode_legacy(buf + fp, _PATH_DEV_MEM);
	}

done:
	free(buf);
exit_free:
	return ret;
}