diff options
| author | Anup Patel <[email protected]> | 2023-12-11 14:07:56 +0530 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2023-12-19 15:56:37 +0530 |
| commit | cdebae2cc9539e2e0553b9c68eab22997c734cbb (patch) | |
| tree | 3a0c68c8935b8381ba36da2eb60eaf7e350d2da1 /lib/utils/fdt/fdt_helper.c | |
| parent | 80169b25f8a9a7cb8becceff9a414900919527c6 (diff) | |
lib: utils/irqchip: Add shared MMIO region for PLIC in root domain
On platforms with Smepmp, the MMIO regions accessed by M-mode need
to be explicitly marked with M-mode only read/write or shared (both
(M-mode and S-mode) read/write permission.
If the above is not done then runtime PLIC access from M-mode on
platforms with Smepmp will result in access fault when further
results in CPU hotplug not working.
Signed-off-by: Anup Patel <[email protected]>
Diffstat (limited to 'lib/utils/fdt/fdt_helper.c')
| -rw-r--r-- | lib/utils/fdt/fdt_helper.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/utils/fdt/fdt_helper.c b/lib/utils/fdt/fdt_helper.c index 4ed6bbc1..e50f4d84 100644 --- a/lib/utils/fdt/fdt_helper.c +++ b/lib/utils/fdt/fdt_helper.c @@ -880,6 +880,7 @@ int fdt_parse_plic_node(void *fdt, int nodeoffset, struct plic_data *plic) if (rc < 0 || !reg_addr || !reg_size) return SBI_ENODEV; plic->addr = reg_addr; + plic->size = reg_size; val = fdt_getprop(fdt, nodeoffset, "riscv,ndev", &len); if (len > 0) |