1. 21 Aug, 2019 1 commit
    • Alexei Fedorov's avatar
      AArch64: Disable Secure Cycle Counter · e290a8fc
      Alexei Fedorov authored
      
      
      This patch fixes an issue when secure world timing information
      can be leaked because Secure Cycle Counter is not disabled.
      For ARMv8.5 the counter gets disabled by setting MDCR_El3.SCCD
      bit on CPU cold/warm boot.
      For the earlier architectures PMCR_EL0 register is saved/restored
      on secure world entry/exit from/to Non-secure state, and cycle
      counting gets disabled by setting PMCR_EL0.DP bit.
      'include\aarch64\arch.h' header file was tided up and new
      ARMv8.5-PMU related definitions were added.
      
      Change-Id: I6f56db6bc77504634a352388990ad925a69ebbfa
      Signed-off-by: default avatarAlexei Fedorov <Alexei.Fedorov@arm.com>
      e290a8fc
  2. 07 Aug, 2019 2 commits
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