opensbi.git/lib/utils/fdt/fdt_domain.c, branch v1.2

lib: fix __fdt_parse_region()

2022-12-09T05:56:39Z

If fdt_getprop() returns NULL, this indicates an error. In this case lenp is set to an error code. But even if lenp = 0 we should not continue. If fdt_getprop() returns a wider value than we expect this is a separate error condition. In both cases the device-tree is invalid. Addresses-Coverity-ID: 1529703 ("Dereference after null check") Signed-off-by: Heinrich Schuchardt Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils: check if CPU node is enabled

2022-05-14T04:46:50Z

Ignore CPU nodes in FDT that are not enabled. Signed-off-by: Jan Remes Reviewed-by: Anup Patel

lib: utils/fdt: Replace strcmp with strncmp

2021-05-19T12:05:38Z

Use strncmp() instead of strcmp() in __fixup_find_domain_offset() so that it compiles fine when linking with external firmware (such as EDK2). Signed-off-by: Daniel Schaefer Reviewed-by: Xiang W Reviewed-by: Abner Chang Reviewed-by: Anup Patel

lib: utils/fdt: Don't use sbi_string functions

2021-05-19T12:04:06Z

When SBI is built by external firmware, we need to use their functions, defined in libfdt_env.h. Just like 2cfd2fc9048806353298a1b967abf985901e36e8 Signed-off-by: Daniel Schaefer Reviewed-by: Abner Chang Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils: Copy over restricted root domain memregions to FDT domains

2021-04-13T05:26:48Z

We should copy over all restricted memregions from the root domain to the domains populated from FDT. These restricted root memregions are typically firmware memregion and M-mode only mmio memregions. Signed-off-by: Anup Patel Reviewed-by: Xiang W Reviewed-by: Alistair Francis

lib: utils: Remove fdt_domain_get() function

2020-12-16T04:40:25Z

The fdt_domain_get() function is now redundant because the fdt_domains_populate() function can explicitly register new domains using the sbi_domain_register() function. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

lib: utils: Allow FDT domain iteration functions to fail

2020-12-16T04:40:19Z

We extend fdt_iterate_each_domain() and fdt_iterate_each_memregion() functions to allow underlying iteration function to fail. This will help us catch more domain misconfiguration issues at boot time. Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Atish Patra

lib: utils: Add helper routines to populate domains from FDT

2020-12-04T15:40:44Z

We add various helper routines to populate domains, iterate domains, iterate domain memregions, and parse HART to domain assignment from the FDT. These helper routines can be used by platform support code and FDT fixup code. Signed-off-by: Anup Patel Reviewed-by: Atish Patra