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-rw-r--r--hw/ppc/pnv_lpc.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/ppc/pnv_lpc.c b/hw/ppc/pnv_lpc.c
index 01f44c19eb..605d390861 100644
--- a/hw/ppc/pnv_lpc.c
+++ b/hw/ppc/pnv_lpc.c
@@ -734,10 +734,13 @@ static void pnv_lpc_realize(DeviceState *dev, Error **errp)
/* Create MMIO regions for LPC HC and OPB registers */
memory_region_init_io(&lpc->opb_master_regs, OBJECT(dev), &opb_master_ops,
lpc, "lpc-opb-master", LPC_OPB_REGS_OPB_SIZE);
+ lpc->opb_master_regs.disable_reentrancy_guard = true;
memory_region_add_subregion(&lpc->opb_mr, LPC_OPB_REGS_OPB_ADDR,
&lpc->opb_master_regs);
memory_region_init_io(&lpc->lpc_hc_regs, OBJECT(dev), &lpc_hc_ops, lpc,
"lpc-hc", LPC_HC_REGS_OPB_SIZE);
+ /* xscom writes to lpc-hc. As such mark lpc-hc re-entrancy safe */
+ lpc->lpc_hc_regs.disable_reentrancy_guard = true;
memory_region_add_subregion(&lpc->opb_mr, LPC_HC_REGS_OPB_ADDR,
&lpc->lpc_hc_regs);