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Afm 8 k #3

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Afm 8 k #3

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3abe4f9
to fix the possible measurement may be lost issue
Kane-Chen-AS Mar 20, 2024
be8d04a
Revert "to fix the possible measurement may be lost issue"
Kane-Chen-AS Mar 20, 2024
c91fe78
to fix the possible measurement data may be lost issue
Kane-Chen-AS Mar 20, 2024
a914b8b
to increase the AFM size to 8K
Kane-Chen-AS Mar 20, 2024
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2 changes: 1 addition & 1 deletion intelprot/bmc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -830,7 +830,7 @@ def build_pfm_afm_in_update_capsule(self):
# create "pfm_afm_in_update_cap.bin" file included in recovery capsule
self.pfm_afm_in_update_cap = "{}-pfm_afm_in_update_cap.bin".format(self.platform_name)
if os.stat(self.pfm_unsigned).st_size < 0x1000:
read_afm_size = 0x1000
read_afm_size = os.stat(self.afm_active_capsule).st_size
padding_size = (self.afm_addr - self.pfm_offset) - (self.pfm_size + 0x400)
with open(self.pfm_afm_in_update_cap, 'wb') as f1, \
open(self.pfm_signed, 'rb') as f2, open(self.afm_active_capsule, 'rb') as f3:
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4 changes: 3 additions & 1 deletion intelprot/capsule.py
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,7 @@
BLK0_MAGIC_TAG = 0xB6EAFD19

AFM_CAP_SIZE = 128*1024 # 128KB total size
AFM_ALIGN_SIZE = 4*1024 # 4KB aligned for each device AFM
AFM_ALIGN_SIZE = 8*1024 # 8KB aligned for each device AFM
AFM_SIGN_SIZE = 1024 # 1KB blocksign size
AFM_CAP_TAG = 0x8883CE1D # AFM Magic/TAG
AFM_SPI_TYPE = 0x3 # AFM SPI_TYPE
Expand Down Expand Up @@ -955,6 +955,8 @@ def pack_device_measurement(self, dev_name):
lst_idx_meas_data = self.manifest['afm_data'][dev_name]["measurement"][idx]["measurement"]
idx_meas_hexstr =''.join(lst_idx_meas_data)
meas_size = int(self.manifest['afm_data'][dev_name]["measurement"][idx]["meas_value_size"], 0)
number_of_possible_measurement = int(self.manifest['afm_data'][dev_name]["measurement"][idx]["number_of_possible_measurement"], 0)
meas_size *= number_of_possible_measurement
#print("\n**** idx={}, idx_meas_hexstr={} \n".format(idx, idx_meas_hexstr))
#print("\n**** len(idx_meas_hexstr)={}, meas_size = {}".format(len(idx_meas_hexstr), meas_size))
afm_dev_meas += struct.pack("%ds"%(meas_size), bytes.fromhex(idx_meas_hexstr))
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