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[Qemu-arm] [PATCH v1 0/4] HWCAP_CPUID registers for aarch64
From: |
Alex Bennée |
Subject: |
[Qemu-arm] [PATCH v1 0/4] HWCAP_CPUID registers for aarch64 |
Date: |
Mon, 28 Jan 2019 17:39:36 +0000 |
Hi,
I posted a series to expose some of the CPU registers to user-space.
The counter registers got merged at the time but the HW_CPUID had some
comments that needed addressing. I've re-spun the series and cleaned
it up, hopefully addressing the comments at the same time. The test
case has been expanded.
The ABI is described in the kernel document:
https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt
but from QEMU's point of view we just need to ensure the correct
values are reported for CONFIG_USER_ONLY.
Alex Bennée (4):
target/arm: relax permission checks for HWCAP_CPUID registers
target/arm: expose CPUID registers to userspace
linux-user/elfload: enable HWCAP_CPUID for AArch64
tests/tcg/aarch64: userspace system register test
linux-user/elfload.c | 1 +
target/arm/cpu.h | 12 +++
target/arm/helper.c | 57 ++++++++++----
tests/tcg/aarch64/Makefile.target | 2 +-
tests/tcg/aarch64/sysregs.c | 120 ++++++++++++++++++++++++++++++
5 files changed, 175 insertions(+), 17 deletions(-)
create mode 100644 tests/tcg/aarch64/sysregs.c
--
2.17.1
- [Qemu-arm] [PATCH v1 0/4] HWCAP_CPUID registers for aarch64,
Alex Bennée <=