X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=kconfig_hardened_check%2F__init__.py;h=a13f0f84ecc4d48d3d8ba25695812af5478c6f15;hb=0a21c2cc7a6425855cc73f056511a6271b389ab5;hp=87fefd15f7b14e6b4d585d04c47f72ce487398cb;hpb=205a142312ab687fb7c5327a69164b23c8df3186;p=kconfig-hardened-check.git

diff --git a/kconfig_hardened_check/__init__.py b/kconfig_hardened_check/__init__.py
index 87fefd1..a13f0f8 100644
--- a/kconfig_hardened_check/__init__.py
+++ b/kconfig_hardened_check/__init__.py
@@ -18,7 +18,6 @@
 #       Аrch-independent:
 #           mitigations=auto,nosmt (nosmt is slow)
 #       X86:
-#           spectre_v2=on
 #           spec_store_bypass_disable=on
 #           l1tf=full,force
 #           l1d_flush=on (a part of the l1tf option)
@@ -366,6 +365,9 @@ def add_kconfig_checks(l, arch):
     if arch in ('X86_64', 'ARM64'):
         l += [KconfigCheck('self_protection', 'defconfig', 'VMAP_STACK', 'y')]
     if arch in ('X86_64', 'X86_32'):
+        l += [KconfigCheck('self_protection', 'defconfig', 'X86_MCE', 'y')]
+        l += [KconfigCheck('self_protection', 'defconfig', 'X86_MCE_INTEL', 'y')]
+        l += [KconfigCheck('self_protection', 'defconfig', 'X86_MCE_AMD', 'y')]
         l += [KconfigCheck('self_protection', 'defconfig', 'MICROCODE', 'y')] # is needed for mitigating CPU bugs
         l += [KconfigCheck('self_protection', 'defconfig', 'RETPOLINE', 'y')]
         l += [OR(KconfigCheck('self_protection', 'defconfig', 'X86_SMAP', 'y'),
@@ -698,7 +700,12 @@ def add_cmdline_checks(l, arch):
     # very complex and not give a 100% guarantee anyway.
 
     # 'self_protection', 'defconfig'
+    l += [CmdlineCheck('self_protection', 'defconfig', 'nosmep', 'is not set')]
+    l += [CmdlineCheck('self_protection', 'defconfig', 'nosmap', 'is not set')]
+    l += [CmdlineCheck('self_protection', 'defconfig', 'nokaslr', 'is not set')]
+    l += [CmdlineCheck('self_protection', 'defconfig', 'nopti', 'is not set')]
     l += [CmdlineCheck('self_protection', 'defconfig', 'nospectre_v1', 'is not set')]
+    l += [CmdlineCheck('self_protection', 'defconfig', 'nospectre_v2', 'is not set')]
     if arch == 'ARM64':
         l += [OR(CmdlineCheck('self_protection', 'defconfig', 'rodata', 'full'),
                  AND(KconfigCheck('self_protection', 'defconfig', 'RODATA_FULL_DEFAULT_ENABLED', 'y'),
@@ -727,27 +734,26 @@ def add_cmdline_checks(l, arch):
              AND(KconfigCheck('self_protection', 'kspp', 'IOMMU_DEFAULT_PASSTHROUGH', 'is not set'),
                  CmdlineCheck('self_protection', 'kspp', 'iommu.passthrough', 'is not set')))]
     # The cmdline checks compatible with the kconfig recommendations of the KSPP project...
-    l += [CmdlineCheck('self_protection', 'kspp', 'nokaslr', 'is not set')]
     l += [OR(CmdlineCheck('self_protection', 'kspp', 'hardened_usercopy', '1'),
              AND(KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY', 'y'),
                  CmdlineCheck('self_protection', 'kspp', 'hardened_usercopy', 'is not set')))]
     l += [OR(CmdlineCheck('self_protection', 'kspp', 'slab_common.usercopy_fallback', '0'),
              AND(KconfigCheck('self_protection', 'kspp', 'HARDENED_USERCOPY_FALLBACK', 'is not set'),
                  CmdlineCheck('self_protection', 'kspp', 'slab_common.usercopy_fallback', 'is not set')))]
-    if arch in ('X86_64', 'X86_32'):
-        l += [AND(CmdlineCheck('self_protection', 'kspp', 'pti', 'on'),
-                  CmdlineCheck('self_protection', 'kspp', 'nopti', 'is not set'))] # ... the end
+    # ... the end
     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'),
                      CmdlineCheck('self_protection', 'kspp', 'randomize_kstack_offset', 'is not set')))]
+    if arch in ('X86_64', 'X86_32'):
+        l += [AND(CmdlineCheck('self_protection', 'kspp', 'pti', 'on'),
+                  CmdlineCheck('self_protection', 'defconfig', 'nopti', 'is not set'))]
 
     # 'self_protection', 'clipos'
     l += [CmdlineCheck('self_protection', 'clipos', 'page_alloc.shuffle', '1')]
-
-    # 'self_protection', 'my'
-    l += [CmdlineCheck('self_protection', 'my', 'nosmep', 'is not set')]
-    l += [CmdlineCheck('self_protection', 'my', 'nosmap', 'is not set')]
+    if arch in ('X86_64', 'X86_32'):
+        l += [AND(CmdlineCheck('self_protection', 'clipos', 'spectre_v2', 'on'),
+                  CmdlineCheck('self_protection', 'defconfig', 'nospectre_v2', 'is not set'))]
 
     # 'cut_attack_surface', 'kspp'
     if arch == 'X86_64':
@@ -907,6 +913,9 @@ def normalize_cmdline_options(option, value):
     if option == 'pti':
         # See pti_check_boottime_disable() in linux/arch/x86/mm/pti.c
         return value
+    if option == 'spectre_v2':
+        # See spectre_v2_parse_cmdline() in linux/arch/x86/kernel/cpu/bugs.c
+        return value
     if option == 'debugfs':
         # See debugfs_kernel() in fs/debugfs/inode.c
         return value