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3 Commits

Author SHA1 Message Date
Aaron Lindsay 28b9dcb74b target/arm: Inform helpers whether a PAC instruction is 'combined' 
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.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Aaron Lindsay <aaron@os.amperecomputing.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230829232335.965414-9-richard.henderson@linaro.org
Message-Id: <20230609172324.982888-7-aaron@os.amperecomputing.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2023-09-08 12:50:44 +01:00
Richard Henderson c1a1f80518 target/arm: Relax ordered/atomic alignment checks for LSE2 
FEAT_LSE2 only requires that atomic operations not cross a
16-byte boundary.  Ordered operations may be completely
unaligned if SCTLR.nAA is set.

Because this alignment check is so special, do it by hand.
Make sure not to keep TCG temps live across the branch.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230530191438.411344-17-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2023-06-06 10:19:38 +01:00
Richard Henderson 67ce09b544 target/arm: Move helper-{a64,mve,sme,sve}.h to tcg/ 
While we cannot move the main "helper.h" out of target/arm/,
due to usage by generic code, we can move the sub-includes.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Message-id: 20230504110412.1892411-3-richard.henderson@linaro.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
 2023-05-12 15:43:37 +01:00