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| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2018-01-19 16:58:29 +0000 |
|---|---|---|
| committer | Dimitris Papastamos <dimitris.papastamos@arm.com> | 2018-01-29 09:58:57 +0000 |
| commit | 3a1b0676c72989d75276da7f11e89d00933eccdd (patch) | |
| tree | 7822586376e372e8ff2d0e71c9152a083a881454 /lib/psci/psci_main.c | |
| parent | 201ca5b6b49197a2c22b3bb0b519d63758fff0b7 (diff) | |
| download | platform_external_arm-trusted-firmware-3a1b0676c72989d75276da7f11e89d00933eccdd.tar.gz platform_external_arm-trusted-firmware-3a1b0676c72989d75276da7f11e89d00933eccdd.tar.bz2 platform_external_arm-trusted-firmware-3a1b0676c72989d75276da7f11e89d00933eccdd.zip | |
Implement support for SMCCC v1.1
SMCCC v1.1 comes with a relaxed calling convention for AArch64
callers. The caller only needs to save x0-x3 before doing an SMC
call.
This patch adds support for SMCCC_VERSION and SMCCC_ARCH_FEATURES.
Refer to "Firmware Interfaces for mitigating CVE_2017_5715 System
Software on Arm Systems"[0] for more information.
[0] https://developer.arm.com/-/media/developer/pdf/ARM%20DEN%200070A%20Firmware%20interfaces%20for%20mitigating%20CVE-2017-5715_V1.0.pdf
Change-Id: If5b1c55c17d6c5c7cb9c2c3ed355d3a91cdad0a9
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
Diffstat (limited to 'lib/psci/psci_main.c')
0 files changed, 0 insertions, 0 deletions