From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org
Subject: [Qemu-devel] [PATCH v2 00/12] target/arm: Implement ARMv8.5-BTI
Date: Mon, 28 Jan 2019 14:31:06 -0800 [thread overview]
Message-ID: <20190128223118.5255-1-richard.henderson@linaro.org> (raw)
The branch target identification extension does not yet have
kernel or gcc support. It should be in shape for developing
those though.
In system mode I do honor the GP bit from the page tables.
In user-only mode, there is a way to pretend that the GP bit
is always set. Further linux-user changes will have to track
the ABI that gets developed.
In the meantime, provide a statically linable make check-tcg
test for the functionality.
Changes since v2:
* Rebase on master.
* Incorporate feedback from Peter.
r~
Richard Henderson (12):
target/arm: Introduce isar_feature_aa64_bti
target/arm: Add PSTATE.BTYPE
target/arm: Add BT and BTYPE to tb->flags
exec: Add target-specific tlb bits to MemTxAttrs
target/arm: Cache the GP bit for a page in MemTxAttrs
target/arm: Default handling of BTYPE during translation
target/arm: Reset btype for direct branches
target/arm: Set btype for indirect branches
target/arm: Add x-guarded-pages cpu property for user-only
target/arm: Enable BTI for -cpu max
linux-user/aarch64: Reset btype for syscalls and signals
tests/tcg/aarch64: Add bti smoke test
include/exec/memattrs.h | 10 ++
target/arm/cpu.h | 24 +++-
target/arm/internals.h | 6 +
target/arm/translate.h | 9 ++
linux-user/aarch64/cpu_loop.c | 15 +++
target/arm/cpu64.c | 22 ++++
target/arm/helper.c | 28 +++--
target/arm/translate-a64.c | 193 +++++++++++++++++++++++++++++-
tests/tcg/aarch64/bti-1.c | 61 ++++++++++
tests/tcg/aarch64/bti-crt.inc.c | 51 ++++++++
tests/tcg/aarch64/Makefile.target | 7 +-
11 files changed, 415 insertions(+), 11 deletions(-)
create mode 100644 tests/tcg/aarch64/bti-1.c
create mode 100644 tests/tcg/aarch64/bti-crt.inc.c
--
2.17.2
next reply other threads:[~2019-01-28 22:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-28 22:31 Richard Henderson [this message]
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 01/12] target/arm: Introduce isar_feature_aa64_bti Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 02/12] target/arm: Add PSTATE.BTYPE Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 03/12] target/arm: Add BT and BTYPE to tb->flags Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 04/12] exec: Add target-specific tlb bits to MemTxAttrs Richard Henderson
2019-02-04 11:40 ` Peter Maydell
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 05/12] target/arm: Cache the GP bit for a page in MemTxAttrs Richard Henderson
2019-02-04 11:41 ` Peter Maydell
2019-02-04 11:58 ` Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 06/12] target/arm: Default handling of BTYPE during translation Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 07/12] target/arm: Reset btype for direct branches Richard Henderson
2019-02-04 11:43 ` Peter Maydell
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 08/12] target/arm: Set btype for indirect branches Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 09/12] target/arm: Add x-guarded-pages cpu property for user-only Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 10/12] target/arm: Enable BTI for -cpu max Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 11/12] linux-user/aarch64: Reset btype for syscalls and signals Richard Henderson
2019-02-04 12:02 ` Peter Maydell
2019-02-04 12:06 ` Richard Henderson
2019-01-28 22:31 ` [Qemu-devel] [PATCH v2 12/12] tests/tcg/aarch64: Add bti smoke test Richard Henderson
2019-01-31 18:12 ` [Qemu-devel] [PATCH v2 00/12] target/arm: Implement ARMv8.5-BTI no-reply
2019-01-31 18:21 ` no-reply
2019-01-31 18:21 ` no-reply
2019-01-31 18:30 ` no-reply
2019-01-31 18:34 ` no-reply
2019-02-04 13:09 ` Peter Maydell
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