opensbi.git/lib/sbi, branch v1.2

lib: sbi: Synchronize PMP settings with virtual memory system

2022-12-09T08:47:56Z

As per section 3.7.2 of RISC-V Privileged Specification, PMP settings must be synchronized with the virtual memory system after PMP settings have been written. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel

lib: fix is_region_valid()

2022-12-09T05:55:27Z

For 'reg->order == __riscv_xlen' the term 'BIT(reg->order)' is undefined. Addresses-Coverity-ID: 1529706 ("Bad bit shift operation") Signed-off-by: Heinrich Schuchardt Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: sbi: Fix is_region_valid()

2022-12-04T16:22:52Z

When order is equal to __riscv_xlen, the shift operation will not perform any operation, which will cause reg->base & (BIT(reg->order) - 1) to always be 0, and the condition has not been established. This patch fixes this bug. Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: sbi: Simplified mmio match checking

2022-12-04T15:46:45Z

We simplify the mmio flag matching in sbi_domain_check_addr(). Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: sbi_ecall: Split up sbi_ecall_replace

2022-11-15T11:14:03Z

Split up sbi_ecall_replace so that each extension is in its individual file. Also reorganize the corresponding section in lib/sbi/objects.mk so that it is grouped by extension, now that the object file targets are split up. Signed-off-by: Vivian Wang Reviewed-by: Anup Patel

lib: sbi_ecall: Add Kconfig option for each extension

2022-10-23T05:31:33Z

For each SBI extension, we: - Add a Kconfig option for it - Add the extension to sbi_ecall_exts only if the extension is enabled - Add the corresponding sbi_ecall_* object file only if the extension is enabled Special cases are as follows: - The legacy extensions are lumped together as one 'big' extension, as has always been the case in OpenSBI code. - The platform-defined vendor extensions are regarded as one extension. - The Base extension cannot be disabled. - sbi_ecall_replace implements multiple extensions, so it's not easy to avoid linking it in. Enable it always, and use #ifdef to disable/enable individual extensions. Signed-off-by: Vivian Wang Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi_ecall: Generate extensions list with carray

2022-10-23T05:30:30Z

Instead of hard-coding the list of extensions in C code, use carray to generate the list of extensions. Using carray makes adding and removing extensions slightly cleaner. This also paves the way for using Kconfig to disable unneeded extensions. Signed-off-by: Vivian Wang Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: sbi: Add sbi_domain_root_add_memrange() API

2022-10-23T04:51:21Z

This patch generalizes the logic to add a memory range with desired alignment and flags of consecutive regions to the root domain. Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

lib: sbi: Fix typo in comment

2022-10-23T04:49:28Z

%s/is is/is Signed-off-by: Yu Chien Peter Lin Reviewed-by: Anup Patel

lib: sbi_platform: expose hart_features to extension_init callback

2022-10-13T04:22:05Z

The platform-specific extension_init callback is supposed to set specific things for the platform opensbi is running on. So it's also the right place to override specific hart_features if needed - when it's know that autodetection has provided wrong results for example. Suggested-by: Atish Patra Reviewed-by: Andrew Jones Reviewed-by: Guo Ren Reviewed-by: Anup Patel Signed-off-by: Heiko Stuebner