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lib: sbi_ipi: Validate hartids against domain, not HSM state #13

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Merged
cp0613 merged 1 commit into from
Jun 18, 2026
Merged

lib: sbi_ipi: Validate hartids against domain, not HSM state #13

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11 changes: 9 additions & 2 deletions lib/sbi/sbi_ipi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -128,17 +128,24 @@ int sbi_ipi_send_many(ulong hmask, ulong hbase, u32 event, void *data)

if (hbase != -1UL) {
struct sbi_hartmask tmp_mask = { 0 };
struct sbi_hartmask domain_mask;
int count = sbi_popcount(hmask);

for (i = hbase; hmask; i++, hmask >>= 1) {
if (hmask & 1UL)
sbi_hartmask_set_hartid(i, &tmp_mask);
}

sbi_hartmask_and(&target_mask, &target_mask, &tmp_mask);
/* Validate hartids against domain assignment, not HSM state */
rc = sbi_domain_get_assigned_hartmask(dom, &domain_mask);
if (rc)
return rc;

if (sbi_hartmask_weight(&target_mask) != count)
sbi_hartmask_and(&domain_mask, &domain_mask, &tmp_mask);
if (sbi_hartmask_weight(&domain_mask) != count)
return SBI_EINVAL;

sbi_hartmask_and(&target_mask, &target_mask, &tmp_mask);
}

/* Send IPIs */
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