[PATCH v2 0/7] Protect M-mode only MMIO devices
Anup Patel
anup.patel at wdc.com
Mon Apr 12 13:16:10 BST 2021
We should protect the M-mode only MMIO devices (such as CLINT) using
the OpenSBI domain support. This can be easily achieved by having APIs
to allow platform support (and drivers) to add memregions for the root
domain.
This series extends OpenSBI domain support to protect M-mode only
devices.
These patches can be found in domain_root_region_v2 branch at:
https://github.com/avpatel/opensbi
Changes since v2:
- Improved sbi_domain_root_add_memregion() API to merge consecutive
memregions in PATCH3
- Use updated sbi_domain_root_add_memregion() API in PATCH4 for CLINT
Anup Patel (7):
lib: sbi: Domains can be registered only before finalizing domains
lib: sbi: Add sbi_domain_memregion_init() API
lib: sbi: Add sbi_domain_root_add_memregion() API
lib: utils/sys: Add CLINT memregion in the root domain
lib: sbi: Make the root domain instance global variable
lib: utils: Copy over restricted root domain memregions to FDT domains
lib: sbi: Make sbi_domain_memregion_initfw() a local function
include/sbi/sbi_domain.h | 26 ++++++-
lib/sbi/sbi_domain.c | 139 +++++++++++++++++++++++++++++++------
lib/utils/fdt/fdt_domain.c | 26 +++++--
lib/utils/sys/clint.c | 29 +++++++-
4 files changed, 190 insertions(+), 30 deletions(-)
--
2.25.1
More information about the opensbi
mailing list