From: Aaron Lindsay <aaron@os.amperecomputing.com>
An instruction is a 'combined' Pointer Authentication instruction
if it does something in addition to PAC -- for instance, branching
to or loading an address from the authenticated pointer.
Knowing whether a PAC operation is 'combined' is needed to
implement FEAT_FPACCOMBINE.
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230609172324.982888-7-aaron@os.amperecomputing.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
target/arm/tcg/helper-a64.h | 4 ++
target/arm/tcg/pauth_helper.c | 71 +++++++++++++++++++++++++++-------
target/arm/tcg/translate-a64.c | 12 +++---
3 files changed, 68 insertions(+), 19 deletions(-)