Lines Matching full:bit

23 A page is encrypted when a page table entry has the encryption bit set (see
24 below on how to determine its position).  The encryption bit can also be
27 bit in the page table entry that points to the next table. This allows the full
29 encryption bit is set in cr3, doesn't imply the full hierarchy is encrypted.
30 Each page table entry in the hierarchy needs to have the encryption bit set to
31 achieve that. So, theoretically, you could have the encryption bit set in cr3
32 so that the PGD is encrypted, but not set the encryption bit in the PGD entry
38 memory. Since the memory encryption bit is controlled by the guest OS when it
39 is operating in 64-bit or 32-bit PAE mode, in all other modes the SEV hardware
40 forces the memory encryption bit to 1.
46 		Bit[0] indicates support for SME
47 		Bit[1] indicates support for SEV
49 		Bits[5:0]  pagetable bit number used to activate memory
60 		Bit[23]   0 = memory encryption features are disabled
67 		Bit[0]	  0 = memory encryption is not active
70 Linux relies on BIOS to set this bit if BIOS has determined that the reduction
73 requirements for the system.  If this bit is not set upon Linux startup then
82 	  Supported and bit 23 of MSR_K8_SYSCFG is set.
86 	  the encryption bit to page table entries (the SME mask in the
92 merely enables SME (sets bit 23 of the MSR_K8_SYSCFG), then Linux can activate