Shuo A Liu d4aaf99d86 hv: keylocker: Support keylocker backup MSRs for Guest VM ... The logical processor scoped IWKey can be copied to or from a platform-scope storage copy called IWKeyBackup. Copying IWKey to IWKeyBackup is called ‘backing up IWKey’ and copying from IWKeyBackup to IWKey is called ‘restoring IWKey’. IWKeyBackup and the path between it and IWKey are protected against software and simple hardware attacks. This means that IWKeyBackup can be used to distribute an IWKey within the logical processors in a platform in a protected manner. Linux keylocker implementation uses this feature, so they are introduced by this patch. Tracked-On: #5695 Signed-off-by: Shuo A Liu <shuo.a.liu@intel.com> Acked-by: Eddie Dong <eddie.dong@intel.com>		2021-02-03 13:54:45 +08:00
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x86	hv: keylocker: Support keylocker backup MSRs for Guest VM	2021-02-03 13:54:45 +08:00