From b9ce5ca8e4652e9741cbbeaf8a168e2d7fc6e3fb Mon Sep 17 00:00:00 2001 From: Alexander Popov Date: Thu, 17 Nov 2022 19:23:55 +0300 Subject: [PATCH] Add the mmio_stale_data check --- kconfig_hardened_check/__init__.py | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py index 397cf47..64731e5 100644 --- a/kconfig_hardened_check/__init__.py +++ b/kconfig_hardened_check/__init__.py @@ -744,6 +744,8 @@ def add_cmdline_checks(l, arch): CmdlineCheck('self_protection', 'defconfig', 'mds', 'is not set'))] l += [OR(CmdlineCheck('self_protection', 'defconfig', 'tsx_async_abort', 'is not off'), CmdlineCheck('self_protection', 'defconfig', 'tsx_async_abort', 'is not set'))] + l += [OR(CmdlineCheck('self_protection', 'defconfig', 'mmio_stale_data', 'is not off'), + CmdlineCheck('self_protection', 'defconfig', 'mmio_stale_data', 'is not set'))] if arch == 'ARM64': l += [OR(CmdlineCheck('self_protection', 'defconfig', 'rodata', 'full'), AND(KconfigCheck('self_protection', 'defconfig', 'RODATA_FULL_DEFAULT_ENABLED', 'y'), @@ -973,6 +975,9 @@ def normalize_cmdline_options(option, value): if option == 'tsx_async_abort': # See tsx_async_abort_parse_cmdline() in arch/x86/kernel/cpu/bugs.c return value + if option == 'mmio_stale_data': + # See mmio_stale_data_parse_cmdline() in arch/x86/kernel/cpu/bugs.c + return value # Implement a limited part of the kstrtobool() logic if value in ('1', 'on', 'On', 'ON', 'y', 'Y', 'yes', 'Yes', 'YES'): -- 2.31.1