Files
acrn-hypervisor/hypervisor/arch/x86
Tao Yuhong f782a8cc39 HV: cache: Fix page fault by flushing cache for VM trusty RAM in HV
The accrss right of HV RAM can be changed to PAGE_USER (eg. trusty RAM
of post-launched VM). So before using clflush(or clflushopt) to flush
HV RAM cache, must allow explicit supervisor-mode data accesses to
user-mode pages. Otherwise, it may trigger page fault.

Tracked-On: #6020
Signed-off-by: Tao Yuhong <yuhong.tao@intel.com>
2021-05-21 13:35:45 +08:00
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