opensbi.git/lib/utils/ipi/aclint_mswi.c, branch v1.3

lib: utils/ipi: Use scratch space to save per-HART MSWI pointer

2023-06-05T10:32:59Z

Instead of using a global array indexed by hartid, we should use scratch space to save per-HART MSWI pointer. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones

lib: utils/ipi: buffer overrun aclint_mswi_cold_init

2023-06-04T09:43:50Z

The parameter checks in aclint_mswi_cold_init() don't guard against a buffer overrun. mswi_hartid2data is defined as an array of SBI_HARTMASK_MAX_BITS entries. The current check allows mswi->hart_count = ACLINT_MSWI_MAX_HARTS mswi->first_hartid = SBI_HARTMASK_MAX_BITS - 1. With these values mswi_hartid2data will be accessed at index SBI_HARTMASK_MAX_BITS + SBI_HARTMASK_MAX_BITS - 2. We have to check the sum of mswi->first_hartid and mswi->hart_count. Furthermore mswi->hart_count = 0 would not make much sense. Addresses-Coverity-ID: 1529705 ("Out-of-bounds write") Fixes: 5a049fe1d6a5 ("lib: utils/ipi: Add ACLINT MSWI library") Signed-off-by: Heinrich Schuchardt Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils: Add M-mode {R/W} flags to the MMIO regions

2023-01-09T12:34:28Z

Add the M-mode readable/writable flags to mmio regions of various drivers. Signed-off-by: Himanshu Chauhan Reviewed-by: Anup Patel Tested-by: Anup Patel

lib: utils/ipi: Fix size check in aclint_mswi_cold_init()

2022-01-11T12:47:07Z

Currently, the ACLINT MSWI size check is forcing size to be at least 0x4000. This is inappropriate check because most systems will never utilize full 16KB for a single ACLINT MSWI device so instead we should check that ACLINT MSWI size is enough for on the associated HARTs. Signed-off-by: Anup Patel Reviewed-by: Dong Du Reviewed-by: Alistair Francis

lib: utils/ipi: Add ACLINT MSWI library

2021-06-24T04:09:44Z

We add common ACLINT MSWI library similar to the CLINT library so that OpenSBI platforms can use it. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W