36 lines
1.4 KiB
Diff
36 lines
1.4 KiB
Diff
|
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Alexander Bulekov <alxndr@bu.edu>
|
||
|
|
Date: Thu, 27 Apr 2023 17:10:12 -0400
|
||
|
|
Subject: [PATCH] raven: disable reentrancy detection for iomem
|
||
|
|
|
||
|
|
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>
|
||
|
|
Message-Id: <20230427211013.2994127-8-alxndr@bu.edu>
|
||
|
|
Signed-off-by: Thomas Huth <thuth@redhat.com>
|
||
|
|
(cherry-picked from commit 6dad5a6810d9c60ca320d01276f6133bbcfa1fc7)
|
||
|
|
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
|
||
|
|
---
|
||
|
|
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);
|