Pawan Gupta 7df548840c x86/bugs: Add "unknown" reporting for MMIO Stale Data ... Older Intel CPUs that are not in the affected processor list for MMIO Stale Data vulnerabilities currently report "Not affected" in sysfs, which may not be correct. Vulnerability status for these older CPUs is unknown. Add known-not-affected CPUs to the whitelist. Report "unknown" mitigation status for CPUs that are not in blacklist, whitelist and also don't enumerate MSR ARCH_CAPABILITIES bits that reflect hardware immunity to MMIO Stale Data vulnerabilities. Mitigation is not deployed when the status is unknown. [ bp: Massage, fixup. ] Fixes: 8d50cdf8b8 ("x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data") Suggested-by: Andrew Cooper <andrew.cooper3@citrix.com> Suggested-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/a932c154772f2121794a5f2eded1a11013114711.1657846269.git.pawan.kumar.gupta@linux.intel.com		2022-08-18 15:35:22 +02:00
..
core-scheduling.rst	uapi/linux/prctl: provide macro definitions for the PR_SCHED_CORE type argument	2021-09-29 13:00:05 +02:00
index.rst	Documentation: Add documentation for Processor MMIO Stale Data	2022-05-21 12:14:26 +02:00
l1d_flush.rst	Documentation: Add L1D flushing Documentation	2021-07-28 11:42:25 +02:00
l1tf.rst	docs: add IRQ documentation at the core-api book	2020-05-15 12:00:56 -06:00
mds.rst	x86/speculation: Fix incorrect MDS/TAA mitigation status	2019-11-16 13:17:49 +01:00
multihit.rst	x86/bugs/multihit: Fix mitigation reporting when VMX is not in use	2020-08-07 01:32:00 +02:00
processor_mmio_stale_data.rst	x86/bugs: Add "unknown" reporting for MMIO Stale Data	2022-08-18 15:35:22 +02:00
special-register-buffer-data-sampling.rst	docs: admin-guide: hw-vuln: avoid using ReST :doc:foo markup	2021-06-17 13:24:36 -06:00
spectre.rst	x86/speculation: Add RSB VM Exit protections	2022-08-03 11:23:52 +02:00
tsx_async_abort.rst	Documentation: fix multiple typos found in the admin-guide subdirectory	2020-12-08 10:27:56 -07:00