From: Alexander Popov <alex.popov@linux.com>
Date: Thu, 17 Nov 2022 16:23:55 +0000 (+0300)
Subject: Add the mmio_stale_data check
X-Git-Tag: v0.6.1~44
X-Git-Url: https://jxself.org/git/?a=commitdiff_plain;h=b9ce5ca8e4652e9741cbbeaf8a168e2d7fc6e3fb;p=kconfig-hardened-check.git

Add the mmio_stale_data check
---

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'):