From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: mark.rutland@arm.com, peter.maydell@linaro.org,
drjones@redhat.com, alex.bennee@linaro.org
Subject: [PATCH v3 0/3] target/arm: Implement an IMPDEF pauth algorithm
Date: Fri, 14 Aug 2020 14:39:35 -0700 [thread overview]
Message-ID: <20200814213938.369628-1-richard.henderson@linaro.org> (raw)
The architected pauth algorithm is quite slow without
hardware support, and boot times for kernels that enable
use of the feature have been significantly impacted.
Version 1 blurb at
https://lists.nongnu.org/archive/html/qemu-devel/2020-08/msg02172.html
which contains larger study of the tradeoffs.
Version 2 changes:
* Use boolean properties, for qmp_query_cpu_model_expansion (drjones).
* Move XXH64 implementation to xxhash.h (ajb).
* Include a small cleanup to parsing the "sve" property
that I noticed along the way.
Version 3 changes:
* Swap order of patches (drjones).
* Add properties test case (drjones).
r~
Richard Henderson (3):
target/arm: Implement an IMPDEF pauth algorithm
target/arm: Add cpu properties to control pauth
target/arm: Use object_property_add_bool for "sve" property
include/qemu/xxhash.h | 82 ++++++++++++++++++++++++++++++++++
target/arm/cpu.h | 25 +++++++++--
target/arm/cpu.c | 13 ++++++
target/arm/cpu64.c | 64 ++++++++++++++++++--------
target/arm/monitor.c | 1 +
target/arm/pauth_helper.c | 41 ++++++++++++++---
tests/qtest/arm-cpu-features.c | 13 ++++++
7 files changed, 212 insertions(+), 27 deletions(-)
--
2.25.1
next reply other threads:[~2020-08-15 16:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-14 21:39 Richard Henderson [this message]
2020-08-14 21:39 ` [PATCH v3 1/3] target/arm: Implement an IMPDEF pauth algorithm Richard Henderson
2020-08-14 21:39 ` [PATCH v3 2/3] target/arm: Add cpu properties to control pauth Richard Henderson
2020-08-14 21:39 ` [PATCH v3 3/3] target/arm: Use object_property_add_bool for "sve" property Richard Henderson
2020-10-18 18:26 ` [PATCH v3 0/3] target/arm: Implement an IMPDEF pauth algorithm Richard Henderson
2020-10-26 20:35 ` Peter Maydell
2020-12-16 22:08 ` Richard Henderson
2020-10-19 14:28 ` Mark Rutland
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