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arm - 启用永不访问权限（PAN）时访问EL1中的共享内存(Accessing Shared memory in EL1 when Privilege Access Never (PAN) is Enabled)

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arm - 启用永不访问权限（PAN）时访问EL1中的共享内存(Accessing Shared memory in EL1 when Privilege Access Never (PAN) is Enabled)

在EL1中启用了ARM特权访问永不标记（PAN） 1的情况下 ，我想知道，如果EL1受到EL0的例外处理，则EL1将必须始终禁用PAN才能使用EL1和EL0之间创建的任何共享内存EL1和映射到EL0地址空间？

  ask by Sridhar translate from so

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