opensbi.git/lib/sbi/objects.mk, branch v1.7

lib: Emulate AMO instructions when Zaamo is not available

2025-05-20T03:48:03Z

The AMO instructions are very critical for Linux so allow low-end RISC-V implementations without Zaamo to boot Linux by emulating AMO instructions using Zalrsc when OpenSBI is compiled without Zaamo. Signed-off-by: Chao-ying Fu Signed-off-by: Anup Patel Link: https://lore.kernel.org/r/20250519121207.976949-1-apatel@ventanamicro.com Signed-off-by: Anup Patel

lib: sbi_misaligned_ldst: Add handling of vector load/store

2024-12-06T12:13:06Z

Add misaligned load/store handling for the vector extension to the sbi_misaligned_ldst library. This implementation is inspired from the misaligned_vec_ldst implementation in the riscv-pk project. Co-developed-by: Zong Li Signed-off-by: Zong Li Signed-off-by: Nylon Chen Reviewed-by: Andy Chiu Reviewed-by: Anup Patel

lib: sbi: Implement SBI MPXY extension

2024-12-06T03:56:52Z

Implement the SBI MPXY extension which provides an SBI interface to the supervisor software for send messages via MPXY framework. Signed-off-by: Rahul Pathak Co-developed-by: Anup Patel Signed-off-by: Anup Patel

lib: sbi: Add SBI Message Proxy (MPXY) framework

2024-12-06T03:56:50Z

Introduce SBI Message Proxy (MPXY) framework which allows platform specific code or drivers to register message protocol specific channels. This framework enables the supervisor software to send messages belonging to different message protocols via OpenSBI firmware. Signed-off-by: Rahul Pathak Co-developed-by: Himanshu Chauhan Signed-off-by: Himanshu Chauhan Co-developed-by: Anup Patel Signed-off-by: Anup Patel

lib: sbi: add Ssdbltrp ISA extension support

2024-10-25T18:28:00Z

Add Ssdbltrp trap handler support for S-mode double trap handling. If the trap is received while in VS-mode, then the trap is redirected to S-mode. If caught while in HS-mode, then an error is returned to the top trap handler which will panic. Signed-off-by: Clément Léger Reviewed-by: Samuel Holland

lib: sbi: Introduce domain data

2024-10-25T17:30:07Z

Different parts of OpenSBI require their own per-domain data so introduce domain data (or sbi_domain_data) which can be registered by any part of OpenSBI. Using the domain data, the domain framework will create a data pointer for every domain which can be used to maintain some per-domain state. Signed-off-by: Anup Patel Reviewed-by: Yu Chien Peter Lin

Makefile: change to using .carray.c for carray files

2024-07-04T06:41:45Z

We would like to clean any files generated by the carray scripts by just searching for the filename as the current make system turns f.carray into f.o. Change to make the make system turn f.carray into f.carray.o note, command to go through .mk files changing the .o in the .mk files is: find . -type f -name "*.carray" | xargs -t -I fname /bin/bash -x -c ' fn=`basename -s .carray fname`; echo "$fn"; sed -i `dirname fname `/objects.mk -e s/"$fn".o/"$fn".carray.o/g' Link: https://patchwork.ozlabs.org/project/opensbi/patch/20240401213438.590209-2-ivan.orlov0322@gmail.com/ Reported-by: Ivan Orlov Suggested-by: Andrew Jones Signed-off-by: Ben Dooks Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi: implement SBI FWFT extension

2024-06-19T12:45:28Z

The SBI FWFT extension defines a set of function that can be called to control the configuration of some platform features (misaligned trap delegation, etc). This patch implements sbi_fwft_set() and sbi_fwft_get() as defined in the specification [1]. Link: https://lists.riscv.org/g/tech-prs/message/924 [1] Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: add support for firmware features extension

2024-06-19T12:39:22Z

This extension allows the software running in supervisor mode to control the behavior of various features of the SBI [1]. Implement the support for such extension. Link: https://lists.riscv.org/g/tech-prs/message/924 [1] Signed-off-by: Clément Léger Reviewed-by: Anup Patel

lib: sbi: Implement SBI SSE extension

2024-04-05T10:19:02Z

The SBI SSE extension defines a set of function that can be called to register and handle supervisor sofwtare events. This patch implements all of the functionality defined in the specification. Signed-off-by: Clément Léger Reviewed-by: Himanshu Chauhan Reviewed-by: Anup Patel