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| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-02-06 17:56:19 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-16 20:22:56 +0100 |
| commit | ac63fdb4a2b229bdd7ad8449a88791ad5da5f572 (patch) | |
| tree | ccef7fbd816e4bb7e60c6fc009d6d50a19c931c8 /block/cmdline-parser.c | |
| parent | 37dc3e6c117eced753d6ce6cce85535cec3ad013 (diff) | |
arm/arm64: smccc: Implement SMCCC v1.1 inline primitive
Commit f2d3b2e8759a upstream.
One of the major improvement of SMCCC v1.1 is that it only clobbers
the first 4 registers, both on 32 and 64bit. This means that it
becomes very easy to provide an inline version of the SMC call
primitive, and avoid performing a function call to stash the
registers that would otherwise be clobbered by SMCCC v1.0.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/cmdline-parser.c')
0 files changed, 0 insertions, 0 deletions