From: Nikhil Devshatwar <[email protected]> This series adds support for partitioning registers across different cells in the Jailhouse. Jailhouse supports partitioning memory regions; where it uses MMU mapping for page aligned regions and subpage handler for non aligned regions.
However, most of the embedded platforms will have common set of registers which need to be partitioned at the granularity of single register. One such example is the pinmux registers avaialble in many platforms including K3 J721e. This series implements a regmap unit which allows to describe the ownerhip of the registers using a simple bitmap. This scales well when you have to partition hundreds of control module or pinmux registers. Nikhil Devshatwar (4): configs: arm64: k3-j721e-linux: Add USB mem_regions core: Introduce regmaps in cell config for partitioning registers core: Implement regmap unit for partitioning registers configs: k3-j721e: Add regmaps for PADCONFIG registers configs/arm64/k3-j721e-evm-linux-demo.c | 41 +++- configs/arm64/k3-j721e-evm.c | 15 ++ hypervisor/Makefile | 2 +- hypervisor/include/jailhouse/cell.h | 2 + hypervisor/include/jailhouse/regmap.h | 47 +++++ hypervisor/regmap.c | 258 ++++++++++++++++++++++++ include/jailhouse/cell-config.h | 22 +- tools/jailhouse-cell-linux | 5 +- tools/jailhouse-hardware-check | 2 +- 9 files changed, 387 insertions(+), 7 deletions(-) create mode 100644 hypervisor/include/jailhouse/regmap.h create mode 100644 hypervisor/regmap.c -- 2.17.1 -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jailhouse-dev/20200127135611.21302-1-nikhil.nd%40ti.com.
