[PATCH 1/2] lib: utils/ipi: Fix size check in aclint_mswi_cold_init()
Anup Patel
apatel at ventanamicro.com
Fri Jan 7 20:03:35 PST 2022
Currently, the ACLINT MSWI size check is forcing size to be at least
0x4000. This is inappropriate check because most systems will never
utilize full 16KB for a single ACLINT MSWI device so instead we should
check that ACLINT MSWI size is enough for on the associated HARTs.
Signed-off-by: Anup Patel <apatel at ventanamicro.com>
---
lib/utils/ipi/aclint_mswi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/utils/ipi/aclint_mswi.c b/lib/utils/ipi/aclint_mswi.c
index a3de2f5..832e223 100644
--- a/lib/utils/ipi/aclint_mswi.c
+++ b/lib/utils/ipi/aclint_mswi.c
@@ -74,7 +74,7 @@ int aclint_mswi_cold_init(struct aclint_mswi_data *mswi)
/* Sanity checks */
if (!mswi || (mswi->addr & (ACLINT_MSWI_ALIGN - 1)) ||
- (mswi->size < ACLINT_MSWI_SIZE) ||
+ (mswi->size < (mswi->hart_count * sizeof(u32))) ||
(mswi->first_hartid >= SBI_HARTMASK_MAX_BITS) ||
(mswi->hart_count > ACLINT_MSWI_MAX_HARTS))
return SBI_EINVAL;
--
2.25.1
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