TSEC Firmware: Difference between revisions
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→Main: correct secureboot falcon os address memcpy source |
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<pre> | <pre> | ||
// Read data segment size from IO space | // Read data segment size from IO space | ||
u32 data_seg_size = *(u32 *) | u32 data_seg_size = *(u32 *)FALCON_HWCFG; | ||
data_seg_size >>= 0x09; | data_seg_size >>= 0x09; | ||
data_seg_size &= 0x1FF; | data_seg_size &= 0x1FF; | ||
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// Read data segment size from IO space | // Read data segment size from IO space | ||
u32 data_seg_size = *(u32 *) | u32 data_seg_size = *(u32 *)FALCON_HWCFG; | ||
data_seg_size >>= 0x09; | data_seg_size >>= 0x09; | ||
data_seg_size &= 0x1FF; | data_seg_size &= 0x1FF; | ||
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// Swap halves (b16, b32 and b16 again) and store it as the last word | // Swap halves (b16, b32 and b16 again) and store it as the last word | ||
*(u32 *)(buf + 0x0C) = ( | *(u32 *)(buf + 0x0C) = ( | ||
((size & 0x000000FF) << 0x08 | (size & 0x0000FF00) >> 0x08) << 0x10 | ((size & 0x000000FF) << 0x08 | ||
| (size & 0x0000FF00) >> 0x08) << 0x10 | |||
| ((size & 0x00FF0000) >> 0x10) << 0x08 | | ((size & 0x00FF0000) >> 0x10) << 0x08 | ||
| (size & 0xFF000000) >> 0x18 | | (size & 0xFF000000) >> 0x18 | ||
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===== crypto_load ===== | ===== crypto_load ===== | ||
This method takes '''reg''' (a crypto register) and '''buf''' (a 16 bytes buffer) as arguments and loads the supplied | This method takes '''reg''' (a crypto register) and '''buf''' (a 16 bytes buffer) as arguments and loads the contents of the supplied register into the supplied buffer. | ||
<pre> | <pre> | ||
// The next two xfer instructions will be overridden | // The next two xfer instructions will be overridden | ||
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The main function takes '''key_addr''' and '''key_type''' as arguments from [[#KeygenLdr|KeygenLdr]]. | The main function takes '''key_addr''' and '''key_type''' as arguments from [[#KeygenLdr|KeygenLdr]]. | ||
<pre> | <pre> | ||
u32 falcon_rev = *(u32 *) | u32 falcon_rev = *(u32 *)FALCON_HWCFG2 & 0x0F; | ||
// Falcon hardware revision must be 5 | // Falcon hardware revision must be 5 | ||
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// Read the SecureBoot blob's Falcon OS image from memory | // Read the SecureBoot blob's Falcon OS image from memory | ||
u32 blob4_flcn_os_addr = ((((blob0_size + blob1_size) + 0x100) + blob2_size) + flcn_code_hdr_size); | u32 blob4_flcn_os_addr = ((((blob0_size + blob1_size) + 0x100) + blob2_size) + flcn_code_hdr_size); | ||
memcpy_i2d(boot_base_addr, | memcpy_i2d(boot_base_addr, blob4_flcn_os_addr, flcn_os_size); | ||
// Upload the SecureBoot's Falcon OS image boot stub code segment into Falcon's CODE region | // Upload the SecureBoot's Falcon OS image boot stub code segment into Falcon's CODE region | ||
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<pre> | <pre> | ||
// Read data segment size from IO space | // Read data segment size from IO space | ||
u32 data_seg_size = *(u32 *) | u32 data_seg_size = *(u32 *)FALCON_HWCFG; | ||
data_seg_size >>= 0x01; | data_seg_size >>= 0x01; | ||
data_seg_size &= 0xFF00; | data_seg_size &= 0xFF00; | ||
| Line 1,387: | Line 1,388: | ||
// Read data segment size from IO space | // Read data segment size from IO space | ||
u32 data_seg_size = *(u32 *) | u32 data_seg_size = *(u32 *)FALCON_HWCFG; | ||
data_seg_size >>= 0x01; | data_seg_size >>= 0x01; | ||
data_seg_size &= 0xFF00; | data_seg_size &= 0xFF00; | ||
| Line 1,519: | Line 1,520: | ||
// Read data segment size from IO space | // Read data segment size from IO space | ||
u32 data_seg_size = *(u32 *) | u32 data_seg_size = *(u32 *)FALCON_HWCFG; | ||
data_seg_size >>= 0x01; | data_seg_size >>= 0x01; | ||
data_seg_size &= 0xFF00; | data_seg_size &= 0xFF00; | ||