opensbi.git/lib/sbi/sbi_misaligned_ldst.c, branch v0.5

include: Extend get_insn() to read instruction from VS/VU mode

2019-09-30T10:05:43Z

Current implementation of get_insn() is not suitable for reading instruction from VS/VU mode because we have to set SSTATUS_MXR bit in VSSTATUS CSR for reading instruction from VS/VU mode. This patch extends get_insn() to read instruction from VS/VU mode. Signed-off-by: Anup Patel Signed-off-by: Alistair Francis

lib: Handle traps when doing unpriv load/store in get_insn()

2019-08-13T04:18:40Z

We can get a page/access trap when doing unpriv load/store in get_insn() function because on a SMP system Linux swapper running on HART A can unmap pages from page table used by HART B. To tackle this we extend get_insn() implementation so that if we get trap in get_insn() then we redirect it to S-mode as fetch page/access fault. Signed-off-by: Anup Patel

lib: Allow compiling without FP support

2019-07-26T10:19:49Z

Currently, we mandate 'F' and 'D' extension in riscv_fp.h so that misaligned load/store emulation has access to FP registers. The above is too restrictive and we should certainly allow compilation for soft-FP toolchains and explicit PLATFORM_RISCV_ISA not having 'F' and 'D' extensions. This patch extends riscv_fp.h and misaligned load/store emulation to allow compiling OpenSBI without FP support. Signed-off-by: Anup Patel Reviewed-by: Bin Meng

lib: Move sbi core library to lib/sbi

2019-06-19T04:18:51Z

Signed-off-by: Atish Patra Acked-by: Anup Patel