opensbi.git/include/sbi/sbi_ecall_interface.h, branch v0.9

include: sbi: Add SBI SRST extension related defines

2020-12-01T11:33:50Z

We extend the SBI ecall interface header for the SBI SRST extension recently accepted in SBI specification v0.3-draft. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

lib: Don't return any invalid error from SBI ecall

2020-06-20T05:06:13Z

We should only return valid error codes from SBI ecalls as defined by the RISC-V SBI spec. To achieve this: 1. We use SBI_Exxxx defines for OpenSBI internal errors with error values starting from -1000 2. We use SBI_ERR_xxxx defines for errors defined by SBI spec 3. We map some of the SBI_Exxxx defines to SBI_ERR_xxxx defines which are semantically same 4. We throw a error print and force return error code to SBI_ERR_FAILED in sbi_ecall_handler() if we see an invalid error code being returned to S-mode Signed-off-by: Anup Patel Reviewed-by: Atish Patra

include: sbi: Add firmware extension constants

2020-05-19T03:52:44Z

Cc: Abner Chang Signed-off-by: Daniel Schaefer Reviewed-by: Anup Patel

lib: sbi: Fix coding style issues

2020-03-10T04:57:28Z

This fixes various coding style issues found in the SBI codes. No functional changes. Signed-off-by: Bin Meng Reviewed-by: Anup Patel

lib: Implement Hart State Management (HSM) SBI extension

2020-02-24T12:43:23Z

This patch adds support HSM extension. The specification is available at https://github.com/riscv/riscv-sbi-doc. It allows to implement hart hotplug and fixed ordered hart booting in supervisor. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Add possible hart status values

2020-02-24T12:41:47Z

SBI HSM extension defines possible hart status values in the specification. Define all possible status values. Add a helper function to convert hart state to status because hart states are internal to OpenSBI only and may not match the status values defined in the specification. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Add replacement extension and function ids

2019-12-23T03:42:04Z

Take this opportunity to move the enums to macros as enums make sbi_ecall_interface.h unusable in assembly files. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Provide a platform hook to implement vendor specific SBI extensions.

2019-10-03T03:28:51Z

SBI v0.2 specification allows vendor extensions and it should be implemented in a independent of the core sbi library. Introduce a single platform callback that will let platforms handle all vendor extensions in platform specific code if they want. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Implement SBI v0.2

2019-10-03T03:26:55Z

SBI v0.2 introduces a base specification which is mandatory to implement for any SBI implementations that is not legacy. Add support for the base extension. Signed-off-by: Atish Patra Reviewed-by: Anup Patel

lib: Rename existing SBI implementation as 0.1.

2019-10-03T03:23:52Z

Current SBI implementation is now considered as version 0.1 and will be removed/replaced with newer extension/functions in future. Rename the existing implementations accordingly to be in sync with the specification. Signed-off-by: Atish Patra Reviewed-by: Anup Patel Reviewed-by: Zong Li