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[PATCH v1 1/3] x86/hap: Wait for remote CPUs during TLB flush
- To: xen-devel@xxxxxxxxxxxxxxxxxxxx
- From: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
- Date: Wed, 1 Apr 2026 17:35:19 +0100
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- Cc: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 01 Apr 2026 16:36:01 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
A future change to on_selected_cpus() will change the semantics of the
wait parameter so that it doesn't wait for remote CPUs to "check in" if
wait == 0. Adjust the call here to retain the existing behaviour so it
continues to wait for the remote CPUs to VMExit.
Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
---
xen/arch/x86/mm/hap/hap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/arch/x86/mm/hap/hap.c b/xen/arch/x86/mm/hap/hap.c
index 5ccb80bda5d3..fb48e470bbf5 100644
--- a/xen/arch/x86/mm/hap/hap.c
+++ b/xen/arch/x86/mm/hap/hap.c
@@ -763,7 +763,7 @@ static bool cf_check flush_tlb(const unsigned long
*vcpu_bitmap)
* not currently running will already be flushed when scheduled because of
* the ASID tickle done in the loop above.
*/
- on_selected_cpus(mask, NULL, NULL, 0);
+ on_selected_cpus(mask, NULL, NULL, 1);
return true;
}
--
2.53.0
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