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| author | Daniel Sneddon <[email protected]> | 2024-03-13 09:47:57 -0700 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2024-04-08 19:27:05 +0200 |
| commit | 0f4a837615ff925ba62648d280a861adf1582df7 (patch) | |
| tree | 0dfeef27c4dbffd6e2b9afa52a5809cd92a244ae /scripts/gdb/linux/utils.py | |
| parent | 7390db8aea0d64e9deb28b8e1ce716f5020c7ee5 (diff) | |
x86/bhi: Define SPEC_CTRL_BHI_DIS_S
Newer processors supports a hardware control BHI_DIS_S to mitigate
Branch History Injection (BHI). Setting BHI_DIS_S protects the kernel
from userspace BHI attacks without having to manually overwrite the
branch history.
Define MSR_SPEC_CTRL bit BHI_DIS_S and its enumeration CPUID.BHI_CTRL.
Mitigation is enabled later.
Signed-off-by: Daniel Sneddon <[email protected]>
Signed-off-by: Pawan Gupta <[email protected]>
Signed-off-by: Daniel Sneddon <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Reviewed-by: Josh Poimboeuf <[email protected]>
Diffstat (limited to 'scripts/gdb/linux/utils.py')
0 files changed, 0 insertions, 0 deletions