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authorNicholas Piggin <npiggin@gmail.com>2025-05-12 13:10:48 +1000
committerCédric Le Goater <clg@redhat.com>2025-07-21 08:03:53 +0200
commit203181cebdb96283520b496d6eaa49634eb51579 (patch)
treeab58ba4748971a7ac9d13d22439851dc4508d819 /hw/intc/xive2.c
parent370ea4a4b6fffc30324fc8f8134483e5a749114d (diff)
downloadfocaccia-qemu-203181cebdb96283520b496d6eaa49634eb51579.tar.gz
focaccia-qemu-203181cebdb96283520b496d6eaa49634eb51579.zip
ppc/xive: Assert group interrupts were redistributed
Add some assertions to try to ensure presented group interrupts do
not get lost without being redistributed, if they become precluded
by CPPR or preempted by a higher priority interrupt.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Glenn Miles <milesg@linux.ibm.com>
Reviewed-by: Michael Kowal <kowal@linux.ibm.com>
Tested-by: Gautam Menghani <gautam@linux.ibm.com>
Link: https://lore.kernel.org/qemu-devel/20250512031100.439842-40-npiggin@gmail.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/intc/xive2.c')
-rw-r--r--hw/intc/xive2.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/intc/xive2.c b/hw/intc/xive2.c
index 531e6517ba..a0a6b1a881 100644
--- a/hw/intc/xive2.c
+++ b/hw/intc/xive2.c
@@ -1089,6 +1089,7 @@ static void xive2_tctx_process_pending(XiveTCTX *tctx, uint8_t sig_ring)
     int rc;
 
     g_assert(sig_ring == TM_QW3_HV_PHYS || sig_ring == TM_QW1_OS);
+    g_assert(!xive_nsr_indicates_group_exception(sig_ring, sig_regs[TM_NSR]));
 
     /*
      * Recompute the PIPR based on local pending interrupts. It will