[PATCH v1 4/7] lib: sbi: Fix pmp_flags for Smepmp read-only shared region
Mayuresh Chitale
mchitale at ventanamicro.com
Thu Sep 7 04:49:44 PDT 2023
From: Anup Patel <apatel at ventanamicro.com>
The Smepmp read-only shared region must have pmpcfg.L, pmpcfg.R,
pmpcfg.W, and pmpcfg.X bits set so sbi_hart_get_smepmp_flags()
must return pmp_flags accordingly.
Signed-off-by: Anup Patel <apatel at ventanamicro.com>
Signed-off-by: Mayuresh Chitale <mchitale at ventanamicro.com>
---
lib/sbi/sbi_hart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index 6320ea6..c8aa342 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -297,7 +297,7 @@ static unsigned int sbi_hart_get_smepmp_flags(struct sbi_scratch *scratch,
if (SBI_DOMAIN_MEMREGION_IS_SHARED(reg->flags)) {
/* Read only for both M and SU modes */
if (SBI_DOMAIN_MEMREGION_IS_SUR_MR(reg->flags))
- pmp_flags = (PMP_R | PMP_W | PMP_X);
+ pmp_flags = (PMP_L | PMP_R | PMP_W | PMP_X);
/* Execute for SU but Read/Execute for M mode */
else if (SBI_DOMAIN_MEMREGION_IS_SUX_MRX(reg->flags))
--
2.34.1
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