Pawan Gupta d405b9c03f x86/rfds: Mitigate Register File Data Sampling (RFDS) ... commit 8076fcde01 upstream. RFDS is a CPU vulnerability that may allow userspace to infer kernel stale data previously used in floating point registers, vector registers and integer registers. RFDS only affects certain Intel Atom processors. Intel released a microcode update that uses VERW instruction to clear the affected CPU buffers. Unlike MDS, none of the affected cores support SMT. Add RFDS bug infrastructure and enable the VERW based mitigation by default, that clears the affected buffers just before exiting to userspace. Also add sysfs reporting and cmdline parameter "reg_file_data_sampling" to control the mitigation. For details see: Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Josh Poimboeuf <jpoimboe@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-03-15 10:48:21 -04:00
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firmware_loader
power	pmdomain: core: Move the unused cleanup to a _sync initcall	2024-02-23 09:12:47 +01:00
regmap	regmap: fix bogus error on regcache_sync success	2023-12-13 18:39:20 +01:00
test	driver core: test_async: fix an error code	2023-09-13 09:42:53 +02:00
arch_numa.c	arm64: irq: set the correct node for VMAP stack	2024-02-05 20:12:46 +00:00
arch_topology.c
attribute_container.c
auxiliary.c
base.h
bus.c
cacheinfo.c	drivers: base: cacheinfo: Fix shared_cpu_map changes in event of CPU hotplug	2023-06-09 10:34:17 +02:00
class.c
component.c	drivers: base: component: fix memory leak with using debugfs_lookup()	2023-03-11 13:55:39 +01:00
container.c
core.c	driver core: fw_devlink: Improve detection of overlapping cycles	2024-02-23 09:12:34 +01:00
cpu.c	x86/rfds: Mitigate Register File Data Sampling (RFDS)	2024-03-15 10:48:21 -04:00
dd.c	driver core: Release all resources during unbind before updating device links	2023-11-28 17:07:13 +00:00
devcoredump.c	devcoredump: Send uevent once devcd is ready	2023-12-13 18:39:28 +01:00
devres.c
devtmpfs.c
driver.c
firmware.c
hypervisor.c
init.c
isa.c
Kconfig
Makefile
map.c
memory.c	mm/memory_hotplug: add missing mem_hotplug_lock	2024-01-10 17:10:33 +01:00
module.c
node.c	base/node.c: initialize the accessor list before registering	2024-01-25 15:27:46 -08:00
physical_location.c	driver core: location: Free struct acpi_pld_info *pld before return false	2023-03-10 09:33:33 +01:00
physical_location.h
pinctrl.c
platform-msi.c
platform.c	platform: Provide a remove callback that returns no value	2023-05-24 17:32:43 +01:00
property.c	device property: Allow const parameter to dev_fwnode()	2024-01-05 15:18:40 +01:00
soc.c
swnode.c	software node: Let args be NULL in software_node_get_reference_args	2024-01-25 15:27:46 -08:00
syscore.c
topology.c
trace.c
trace.h
transport_class.c	drivers: base: transport_class: fix resource leak when transport_add_device() fails	2023-03-10 09:33:34 +01:00