[PATCH for-5.1 0/3] target/arm: mte+pauth fixes

[Richard Henderson]

A couple of last minute fixes for MTE:

 (1) Peter pointed out that EL3's SCR.ATA needs to be set when
     we're booting a kernel directly.  Similarly for API & APK.

 (2) Vincenzo pointed out that with RRND=1, we can't rely on
     RGSR having being initialized.

     I suppose the only follow-on question here is whether it is
     better to minimize the number of calls to qemu_guest_getrandom,
     or instead to name that our IMPDEF algorithm and use it for
     every call to IRG.  We already have other user-space available
     RNG instructions that can drain the entropy pool, so this is
     not really different.


r~


Richard Henderson (3):
  hw/arm/boot: Fix PAUTH for EL3 direct kernel boot
  hw/arm/boot: Fix MTE for EL3 direct kernel boot
  target/arm: Improve IMPDEF algorithm for IRG

 hw/arm/boot.c           |  6 ++++++
 target/arm/mte_helper.c | 37 ++++++++++++++++++++++++++++++-------
 2 files changed, 36 insertions(+), 7 deletions(-)

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2.25.1