| commit | 3a1b0676c72989d75276da7f11e89d00933eccdd | [log] [tgz] |
|---|---|---|
| author | Dimitris Papastamos <dimitris.papastamos@arm.com> | Fri Jan 19 16:58:29 2018 +0000 |
| committer | Dimitris Papastamos <dimitris.papastamos@arm.com> | Mon Jan 29 09:58:57 2018 +0000 |
| tree | 7822586376e372e8ff2d0e71c9152a083a881454 | |
| parent | 201ca5b6b49197a2c22b3bb0b519d63758fff0b7 [diff] |
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>