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
