[PATCH 0/6] Export platform features from ccp driver

From: Mario Limonciello
Date: Thu Feb 09 2023 - 17:38:38 EST


The i2c-designware-amdpsp driver communicates with a platform
features mailbox provided by the PSP. The address used for
communication is discovered via a non-architecturally
guaranteed mechanism.

To better scale, export a feature for communication with platform
features directly from the ccp driver.

Mario Limonciello (6):
crypto: ccp: Drop TEE support for IRQ handler
crypto: ccp: Add a header for multiple drivers to use `__psp_pa`
crypto: ccp: Move some PSP mailbox bit definitions into common header
crypto: ccp: Add support for an interface for platform features
crypto: ccp: Enable platform access interface on client PSP parts
i2c: designware: Use PCI PSP driver for communication

arch/x86/kvm/svm/sev.c | 1 +
drivers/crypto/ccp/Makefile | 3 +-
drivers/crypto/ccp/platform-access.c | 166 ++++++++++++++++++++
drivers/crypto/ccp/platform-access.h | 34 ++++
drivers/crypto/ccp/psp-dev.c | 32 ++--
drivers/crypto/ccp/psp-dev.h | 11 +-
drivers/crypto/ccp/sev-dev.c | 16 +-
drivers/crypto/ccp/sev-dev.h | 2 +-
drivers/crypto/ccp/sp-dev.h | 7 +
drivers/crypto/ccp/sp-pci.c | 7 +
drivers/crypto/ccp/tee-dev.c | 17 +-
drivers/i2c/busses/Kconfig | 2 +-
drivers/i2c/busses/i2c-designware-amdpsp.c | 149 +-----------------
drivers/i2c/busses/i2c-designware-core.h | 1 -
drivers/i2c/busses/i2c-designware-platdrv.c | 1 -
drivers/tee/amdtee/call.c | 2 +-
drivers/tee/amdtee/shm_pool.c | 2 +-
include/linux/psp-platform-access.h | 50 ++++++
include/linux/psp-sev.h | 8 -
include/linux/psp.h | 26 +++
20 files changed, 340 insertions(+), 197 deletions(-)
create mode 100644 drivers/crypto/ccp/platform-access.c
create mode 100644 drivers/crypto/ccp/platform-access.h
create mode 100644 include/linux/psp-platform-access.h
create mode 100644 include/linux/psp.h


base-commit: c7410b425de40e9b163eef781e1bdacf1bf2962e
--
2.34.1