Daan De Meyer
bb93fdaaf3
When --linux= specifies a non-PE kernel image, automatically disable UEFI firmware loading (as if --firmware= was passed). If --firmware= is explicitly set to a path in this case, fail with an error. Booting a UKI with --firmware= is also rejected since UKIs require UEFI. --firmware= (empty string) can also be used explicitly to disable firmware loading for PE kernels. Other changes: - Extract OVMF pflash drive setup into cmdline_add_ovmf() - Extract kernel image type detection into determine_kernel() - Add smbios_supported() helper to centralize the SMBIOS availability check (always available on x86, elsewhere requires firmware) - Gate SMM, OVMF drives, SMBIOS11 and credential SMBIOS paths on firmware/SMBIOS being available - Beef up the credential logic to fall back to fw_cfg and kernel command line in case SMBIOS is not available
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