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lib: utils/irqchip: Add shared MMIO region for PLIC in root domain

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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 <apatel@ventanamicro.com>
This commit is contained in:
Anup Patel 2023-12-11 14:07:56 +05:30 • committed by Anup Patel
parent 80169b25f8
commit cdebae2cc9
9 changed files with 21 additions and 1 deletions
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1
include/sbi_utils/irqchip/plic.h
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@ -14,6 +14,7 @@
struct plic_data {
unsigned long addr;
unsigned long size;
unsigned long num_src;
};