Commit b6930eae by Alexander Popov

Add iommu.passthrough check

parent 1300fb0e
......@@ -13,7 +13,6 @@
# N.B Hardening command line parameters:
# page_alloc.shuffle=1
# iommu=force (does it help against DMA attacks?)
# iommu.passthrough=0
# slub_debug=FZ (slow)
# loadpin.enforce=1
# debugfs=no-mount (or off if possible)
......@@ -662,6 +661,9 @@ def add_cmdline_checks(l, arch):
l += [OR(CmdlineCheck('self_protection', 'kspp', 'iommu.strict', '1'),
AND(KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_DMA_STRICT', 'y'),
CmdlineCheck('self_protection', 'kspp', 'iommu.strict', 'is not set')))]
l += [OR(CmdlineCheck('self_protection', 'kspp', 'iommu.passthrough', '0'),
AND(KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_PASSTHROUGH', 'is not set'),
CmdlineCheck('self_protection', 'kspp', 'iommu.passthrough', 'is not set')))]
if arch in ('X86_64', 'ARM64', 'X86_32'):
l += [OR(CmdlineCheck('self_protection', 'kspp', 'randomize_kstack_offset', '1'),
AND(KconfigCheck('self_protection', 'kspp', 'RANDOMIZE_KSTACK_OFFSET_DEFAULT', 'y'),
......
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