On Fri, Jun 23, 2023 at 08:49:50AM -0500, Mario Limonciello wrote: > Dynamic boost control is a feature of some SoCs that allows > an authenticated entity to send commands to the security processor > to control certain SOC characteristics with the intention to improve > performance. > > This is implemented via a mechanism that a userspace application would > authenticate using a nonce and key exchange over an IOCTL interface. > > After authentication is complete an application can exchange signed > messages with the security processor and both ends can validate the > data transmitted. > > This series includes a test suite that can be run on real hardware > to ensure that the communication works as expected. This can also be > used for an application to model the communication path. > > Two sysfs files are introduced for reading the PSP bootloader version > as well as TEE version which can be useful data points for debugging > communication problems. Series looks OK to me. Acked-by: John Allen <john.allen@xxxxxxx> > > v4->v5: > * Pick up tags > * Pick up a static fix > * Fix a mistake found in dbc_cli > > Mario Limonciello (11): > crypto: ccp: Rename macro for security attributes > crypto: ccp: Add support for displaying PSP firmware versions > crypto: ccp: Add bootloader and TEE version offsets > crypto: ccp: move setting PSP master to earlier in the init > crypto: ccp: Add support for fetching a nonce for dynamic boost > control > crypto: ccp: Add support for setting user ID for dynamic boost control > crypto: ccp: Add support for getting and setting DBC parameters > crypto: ccp: Add a sample library for ioctl use > crypto: ccp: Add a sample python script for Dynamic Boost Control > crypto: ccp: Add unit tests for dynamic boost control > crypto: ccp: Add Mario to MAINTAINERS > > Documentation/ABI/testing/sysfs-driver-ccp | 18 ++ > MAINTAINERS | 12 + > drivers/crypto/ccp/Makefile | 3 +- > drivers/crypto/ccp/dbc.c | 250 +++++++++++++++++++ > drivers/crypto/ccp/dbc.h | 56 +++++ > drivers/crypto/ccp/psp-dev.c | 19 +- > drivers/crypto/ccp/psp-dev.h | 1 + > drivers/crypto/ccp/sp-dev.h | 7 + > drivers/crypto/ccp/sp-pci.c | 96 +++++++- > include/linux/psp-platform-access.h | 4 + > include/uapi/linux/psp-dbc.h | 147 ++++++++++++ > tools/crypto/ccp/.gitignore | 1 + > tools/crypto/ccp/Makefile | 13 + > tools/crypto/ccp/dbc.c | 72 ++++++ > tools/crypto/ccp/dbc.py | 64 +++++ > tools/crypto/ccp/dbc_cli.py | 134 +++++++++++ > tools/crypto/ccp/test_dbc.py | 266 +++++++++++++++++++++ > 17 files changed, 1146 insertions(+), 17 deletions(-) > create mode 100644 drivers/crypto/ccp/dbc.c > create mode 100644 drivers/crypto/ccp/dbc.h > create mode 100644 include/uapi/linux/psp-dbc.h > create mode 100644 tools/crypto/ccp/.gitignore > create mode 100644 tools/crypto/ccp/Makefile > create mode 100644 tools/crypto/ccp/dbc.c > create mode 100644 tools/crypto/ccp/dbc.py > create mode 100755 tools/crypto/ccp/dbc_cli.py > create mode 100755 tools/crypto/ccp/test_dbc.py > > > base-commit: b335f258e8ddafec0e8ae2201ca78d29ed8f85eb > -- > 2.34.1 >
