cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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sysfs-platform-intel-pmc (816B)


      1What:		/sys/devices/platform/<platform>/etr3
      2Date:		Apr 2021
      3KernelVersion:	5.13
      4Contact:	"Tomas Winkler" <tomas.winkler@intel.com>
      5Description:
      6		The file exposes "Extended Test Mode Register 3" global
      7		reset bits. The bits are used during an Intel platform
      8		manufacturing process to indicate that consequent reset
      9		of the platform is a "global reset". This type of reset
     10		is required in order for manufacturing configurations
     11		to take effect.
     12
     13		Display global reset setting bits for PMC.
     14
     15			* bit 31 - global reset is locked
     16			* bit 20 - global reset is set
     17
     18		Writing bit 20 value to the etr3 will induce
     19		a platform "global reset" upon consequent platform reset,
     20		in case the register is not locked.
     21		The "global reset bit" should be locked on a production
     22		system and the file is in read-only mode.