[PATCH v1 1/3] x86/hap: Wait for remote CPUs during TLB flush

Ross Lagerwall posted 3 patches 4 hours ago
[PATCH v1 1/3] x86/hap: Wait for remote CPUs during TLB flush
Posted by Ross Lagerwall 4 hours ago
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@citrix.com>
---
 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