lsi53c895a: disable reentrancy detection for script RAM
As the code is designed to use the memory APIs to access the script ram,
disable reentrancy checks for the pseudo-RAM ram_io MemoryRegion.
In the future, ram_io may be converted from an IO to a proper RAM MemoryRegion.
Reported-by: Fiona Ebner <f.ebner@proxmox.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Message-Id: <20230427211013.2994127-6-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index af93557..db27872 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -2302,6 +2302,12 @@
memory_region_init_io(&s->io_io, OBJECT(s), &lsi_io_ops, s,
"lsi-io", 256);
+ /*
+ * Since we use the address-space API to interact with ram_io, disable the
+ * re-entrancy guard.
+ */
+ s->ram_io.disable_reentrancy_guard = true;
+
address_space_init(&s->pci_io_as, pci_address_space_io(dev), "lsi-pci-io");
qdev_init_gpio_out(d, &s->ext_irq, 1);
