/* VbExLegacy calls a payload (e.g. SeaBIOS) from an alternate CBFS
* that lives in the RW section if CTRL-L is pressed at the dev screen.
* FIXME: Right now no verification is done what so ever!
*/
int VbExLegacy(void)
{
CbfsFile payload;
int legacy_node, flash_node;
u32 flash_base, legacy_offset, legacy_length;
u32 reg[2];
flash_node = fdt_path_offset(gd->fdt_blob, "/flash");
if (flash_node < 0) {
printf("Could not find /flash in FDT\n");
return 1;
}
legacy_node = fdt_path_offset(gd->fdt_blob, "/flash/rw-legacy");
if (!legacy_node) {
printf("Could not find /flash/rw-legacy in FDT\n");
return 1;
}
if (fdtdec_get_int_array(gd->fdt_blob, flash_node, "reg", reg, 2)) {
printf("Error decoding reg property of /flash\n");
return 1;
}
flash_base = reg[0];
if (fdtdec_get_int_array(gd->fdt_blob, legacy_node, "reg", reg, 2)) {
printf("Error decoding reg property of /flash/rw-legacy\n");
return 1;
}
legacy_offset = reg[0];
legacy_length = reg[1];
/* Point to alternate CBFS */
file_cbfs_init(flash_base + legacy_offset + legacy_length - 1);
/* For debugging, show the contents of our CBFS */
do_cbfs_ls(NULL, 0, 0, NULL);
/* Look for a payload named "payload" */
payload = file_cbfs_find("payload");
if (!payload) {
printf("No file \"payload\" found in CBFS.\n");
return 1;
}
/* This is a minimalistic SELF parser. */
CbfsPayloadSegment *seg = payload->data;
while (1) {
void (*payload_entry)(void);
void *src = payload->data + be32_to_cpu(seg->offset);
void *dst = (void *)(unsigned long)be64_to_cpu(seg->load_addr);
u32 src_len = be32_to_cpu(seg->len);
u32 dst_len = be32_to_cpu(seg->mem_len);
switch (seg->type) {
case PAYLOAD_SEGMENT_CODE:
case PAYLOAD_SEGMENT_DATA:
printf("CODE/DATA: dst=%p dst_len=%d src=%p "
"src_len=%d\n", dst, dst_len, src, src_len);
if (be32_to_cpu(seg->compression) ==
CBFS_COMPRESS_NONE) {
memcpy(dst, src, src_len);
} else
#ifdef CONFIG_LZMA
if (be32_to_cpu(seg->compression) ==
CBFS_COMPRESS_LZMA) {
int ret;
SizeT lzma_len = dst_len;
ret = lzmaBuffToBuffDecompress(
(unsigned char *)dst, &lzma_len,
(unsigned char *)src, src_len);
if (ret != SZ_OK) {
printf("LZMA: Decompression failed. "
"ret=%d.\n", ret);
return 1;
}
} else
#endif
{
printf("Compression type %x not supported\n",
be32_to_cpu(seg->compression));
return 1;
}
break;
case PAYLOAD_SEGMENT_BSS:
printf("BSS: dst=%p len=%d\n", dst, dst_len);
memset(dst, 0, dst_len);
break;
case PAYLOAD_SEGMENT_PARAMS:
printf("PARAMS: skipped\n");
break;
case PAYLOAD_SEGMENT_ENTRY:
board_final_cleanup();
TlclSaveState();
payload_entry = dst;
payload_entry();
return 0;
default:
printf("segment type %x not implemented. Exiting\n",
seg->type);
return 1;
}
seg++;
}
/* Make GCC happy. This point is never reached. */
return 0;
}
/**
* Test send-command functions
*/
static void SendCommandTest(void)
{
ResetMocks();
TEST_EQ(TlclStartup(), 0, "SaveState");
TEST_EQ(calls[0].req_cmd, TPM_ORD_Startup, " cmd");
ResetMocks();
TEST_EQ(TlclSaveState(), 0, "SaveState");
TEST_EQ(calls[0].req_cmd, TPM_ORD_SaveState, " cmd");
ResetMocks();
TEST_EQ(TlclResume(), 0, "Resume");
TEST_EQ(calls[0].req_cmd, TPM_ORD_Startup, " cmd");
ResetMocks();
TEST_EQ(TlclSelfTestFull(), 0, "SelfTestFull");
TEST_EQ(calls[0].req_cmd, TPM_ORD_SelfTestFull, " cmd");
ResetMocks();
TEST_EQ(TlclContinueSelfTest(), 0, "ContinueSelfTest");
TEST_EQ(calls[0].req_cmd, TPM_ORD_ContinueSelfTest, " cmd");
ResetMocks();
TEST_EQ(TlclAssertPhysicalPresence(), 0,
"AssertPhysicalPresence");
TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd");
ResetMocks();
TEST_EQ(TlclPhysicalPresenceCMDEnable(), 0,
"PhysicalPresenceCMDEnable");
TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd");
ResetMocks();
TEST_EQ(TlclFinalizePhysicalPresence(), 0,
"FinalizePhysicalPresence");
TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd");
ResetMocks();
TEST_EQ(TlclAssertPhysicalPresenceResult(), 0,
"AssertPhysicalPresenceResult");
TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd");
ResetMocks();
TEST_EQ(TlclLockPhysicalPresence(), 0,
"LockPhysicalPresence");
TEST_EQ(calls[0].req_cmd, TSC_ORD_PhysicalPresence, " cmd");
ResetMocks();
TEST_EQ(TlclIsOwned(), 0, "IsOwned");
TEST_EQ(calls[0].req_cmd, TPM_ORD_ReadPubek, " cmd");
ResetMocks();
calls[0].retval = VBERROR_SIMULATED;
TEST_NEQ(TlclIsOwned(), 0, "IsOwned");
ResetMocks();
TEST_EQ(TlclForceClear(), 0, "ForceClear");
TEST_EQ(calls[0].req_cmd, TPM_ORD_ForceClear, " cmd");
ResetMocks();
TEST_EQ(TlclSetEnable(), 0, "SetEnable");
TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalEnable, " cmd");
ResetMocks();
TEST_EQ(TlclClearEnable(), 0, "ClearEnable");
TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalDisable, " cmd");
ResetMocks();
TEST_EQ(TlclSetDeactivated(0), 0, "SetDeactivated");
TEST_EQ(calls[0].req_cmd, TPM_ORD_PhysicalSetDeactivated, " cmd");
}