1. 21 Sep, 2018 16 commits
  2. 14 Sep, 2018 5 commits
  3. 13 Sep, 2018 1 commit
    • Brijesh Singh's avatar
      crypto: ccp - add timeout support in the SEV command · 3702a058
      Brijesh Singh authored
      Currently, the CCP driver assumes that the SEV command issued to the PSP
      will always return (i.e. it will never hang).  But recently, firmware bugs
      have shown that a command can hang.  Since of the SEV commands are used
      in probe routines, this can cause boot hangs and/or loss of virtualization
      capabilities.
      
      To protect against firmware bugs, add a timeout in the SEV command
      execution flow.  If a command does not complete within the specified
      timeout then return -ETIMEOUT and stop the driver from executing any
      further commands since the state of the SEV firmware is unknown.
      
      Cc: Tom Lendacky <thomas.lendacky@amd.com>
      Cc: Gary Hook <Gary.Hook@amd.com>
      Cc: Herbert Xu <herbert@gondor.apana.org.au>
      Cc: linux-kernel@vger.kernel.org
      Signed-off-by: default avatarBrijesh Singh <brijesh.singh@amd.com>
      Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
      3702a058
  4. 04 Sep, 2018 18 commits