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[PATCH 0/3] target/arm: Implement ARMv8.5-MemTag, user mode
From: |
Richard Henderson |
Subject: |
[PATCH 0/3] target/arm: Implement ARMv8.5-MemTag, user mode |
Date: |
Tue, 15 Oct 2019 09:35:04 -0700 |
This is a refresh of the user-only patch set from March.
I do not attempt to implement any part of a kernel abi wrt mmap
and/or mprotect. Instead, it uses a x-tagged-pages property to
assume that all anonymous pages have tags.
The tests added are disabled by default, but do pass if you have
binutils 2.32 installed.
r~
Based-on: <address@hidden>
("target/arm: Implement ARMv8.5-MemTag, system mode")
Based-on: <address@hidden>
("target/arm: Implement ARMv8.5-BTI for linux-user")
Complete tree: https://github.com/rth7680/qemu/tree/tgt-arm-mte-user
Richard Henderson (3):
tcg: Introduce target-specific page data for user-only
target/arm: Add allocation tag storage for user mode
tests/tcg/aarch64: Add mte smoke tests
include/exec/cpu-all.h | 10 ++++++--
target/arm/cpu.h | 4 ++++
accel/tcg/translate-all.c | 28 ++++++++++++++++++++++
linux-user/mmap.c | 8 ++++++-
linux-user/syscall.c | 4 ++--
target/arm/cpu64.c | 20 ++++++++++++++++
target/arm/mte_helper.c | 35 +++++++++++++++++++++++++--
tests/tcg/aarch64/mte-1.c | 27 +++++++++++++++++++++
tests/tcg/aarch64/mte-2.c | 39 +++++++++++++++++++++++++++++++
tests/tcg/aarch64/Makefile.target | 5 ++++
10 files changed, 173 insertions(+), 7 deletions(-)
create mode 100644 tests/tcg/aarch64/mte-1.c
create mode 100644 tests/tcg/aarch64/mte-2.c
--
2.17.1