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[PATCH v10 7/8] raven: disable reentrancy detection for iomem
From: |
Alexander Bulekov |
Subject: |
[PATCH v10 7/8] raven: disable reentrancy detection for iomem |
Date: |
Thu, 27 Apr 2023 17:10:12 -0400 |
As the code is designed for re-entrant calls from raven_io_ops to
pci-conf, mark raven_io_ops as reentrancy-safe.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
---
hw/pci-host/raven.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/pci-host/raven.c b/hw/pci-host/raven.c
index 072ffe3c5e..9a11ac4b2b 100644
--- a/hw/pci-host/raven.c
+++ b/hw/pci-host/raven.c
@@ -294,6 +294,13 @@ static void raven_pcihost_initfn(Object *obj)
memory_region_init(&s->pci_memory, obj, "pci-memory", 0x3f000000);
address_space_init(&s->pci_io_as, &s->pci_io, "raven-io");
+ /*
+ * Raven's raven_io_ops use the address-space API to access pci-conf-idx
+ * (which is also owned by the raven device). As such, mark the
+ * pci_io_non_contiguous as re-entrancy safe.
+ */
+ s->pci_io_non_contiguous.disable_reentrancy_guard = true;
+
/* CPU address space */
memory_region_add_subregion(address_space_mem, PCI_IO_BASE_ADDR,
&s->pci_io);
--
2.39.0
- [PATCH v10 3/8] checkpatch: add qemu_bh_new/aio_bh_new checks, (continued)
[PATCH v10 6/8] bcm2835_property: disable reentrancy detection for iomem, Alexander Bulekov, 2023/04/27
[PATCH v10 2/8] async: Add an optional reentrancy guard to the BH API, Alexander Bulekov, 2023/04/27
[PATCH v10 7/8] raven: disable reentrancy detection for iomem,
Alexander Bulekov <=
[PATCH v10 8/8] apic: disable reentrancy detection for apic-msi, Alexander Bulekov, 2023/04/27
[PATCH v10 4/8] hw: replace most qemu_bh_new calls with qemu_bh_new_guarded, Alexander Bulekov, 2023/04/27