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Support Minimal SMBIOS spoofing on ElCap era Macs

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This commit is contained in:
Mykola Grymalyuk
2021-05-31 14:01:30 -06:00
parent ccb9aea1e6
commit 2da88a22d7
4 changed files with 58 additions and 11 deletions
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38
Resources/Build.py
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@@ -72,6 +72,36 @@ class BuildOpenCore:
else:
return self.model
def fw_feature_detect(self, model):
# Flip bit 19 to enable APFS support
# https://github.com/acidanthera/OpenCorePkg/blob/0.6.9/Include/Apple/IndustryStandard/AppleFeatures.h#L136
if model == "iMac7,1":
fw_feature = 3221230599
fw_mask = 3221233663
elif model in ["MacPro4,1", "Xserve3,1"]:
fw_feature = 3758224695
fw_mask = 3221487415
else:
fw_feature = 3221230595
fw_mask = 3221241855
#print(f"- Detected FirmwareFeature value: {fw_feature}")
fw_feature |= 2**19
fw_mask |= 2**19
#print(f"- Updated FirmwareFeatures value: {fw_feature}")
# Allow for easy usage in config.plist
fw_feature = hex(fw_feature)
fw_feature = fw_feature.replace("0x", "")
fw_feature = Utilities.hexswap(fw_feature)
fw_feature = binascii.unhexlify(fw_feature)
fw_mask = hex(fw_mask)
fw_mask = fw_mask.replace("0x", "")
fw_mask = Utilities.hexswap(fw_mask)
fw_mask = binascii.unhexlify(fw_mask)
return fw_feature, fw_mask
def build_efi(self):
Utilities.cls()
if not self.constants.custom_model:
@@ -613,7 +643,13 @@ class BuildOpenCore:
# Setup menu
def minimal_serial_patch(self):
if self.constants.custom_cpu_model == 0 or self.constants.custom_cpu_model == 1:
self.config["PlatformInfo"]["PlatformNVRAM"]["ProcessorType"] = 1537
self.config["PlatformInfo"]["SMBIOS"]["ProcessorType"] = 1537
if self.model in ModelArray.NoAPFSsupport:
fw_feature,fw_mask = self.fw_feature_detect(self.model)
self.config["PlatformInfo"]["PlatformNVRAM"]["FirmwareFeatures"] = fw_feature
self.config["PlatformInfo"]["SMBIOS"]["FirmwareFeatures"] = fw_feature
self.config["PlatformInfo"]["PlatformNVRAM"]["FirmwareFeaturesMask"] = fw_mask
self.config["PlatformInfo"]["SMBIOS"]["FirmwareFeaturesMask"] = fw_mask
self.config["NVRAM"]["Add"]["7C436110-AB2A-4BBB-A880-FE41995C9F82"]["run-efi-updater"] = "No"
self.config["PlatformInfo"]["PlatformNVRAM"]["BID"] = self.spoofed_board
self.config["PlatformInfo"]["SMBIOS"]["BoardProduct"] = self.spoofed_board