Chen PeiandAnup Patel 110f28518a lib: sbi_ipi: Validate hartids against domain, not HSM state ...

Commit 37eaca4ab3 ("lib: sbi_ipi: Return error for invalid hartids")
added a weight check against the HSM-interruptible mask, which excludes
harts in STOPPED state. This causes sbi_ipi_send_many() to return
SBI_EINVAL when the kernel sends a remote fence (e.g. TLB shootdown)
whose hmask includes a hart that was stopped by CPU hotplug:

  __sbi_rfence_v02_call: hbase = [0] hmask = [0x3] failed (error [-22])

Validate requested hartids against the domain's assigned hartmask
instead. This still rejects truly invalid or cross-domain hartids, but
allows HSM-STOPPED harts to be silently skipped — which is safe because
a stopped hart will do a full local TLB flush on its next HSM start
before re-entering S-mode.

Fixes: 37eaca4ab3 ("lib: sbi_ipi: Return error for invalid hartids")
Signed-off-by: Chen Pei <cp0613@linux.alibaba.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260612115208.118132-1-cp0613@linux.alibaba.com
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-07-21 11:28:59 +05:30

..

sbi

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

2026-07-21 11:28:59 +05:30

utils

lib: utils/mpxy: Add RPMI MPXY driver for logging service group

2026-07-01 21:30:24 +05:30