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authorAkihiko Odaki <akihiko.odaki@daynix.com>2024-02-12 19:20:29 +0900
committerPhilippe Mathieu-Daudé <philmd@linaro.org>2025-01-09 18:16:18 +0100
commita7a3784128fa1de275b5eb2406f3f46842fdbd1a (patch)
tree9afb144ff6d07480e81743527dcf981e8ec47d8a /hw/pci/pci.c
parent3f8bcbba3b320c610689576fc47595f1076198dd (diff)
downloadfocaccia-qemu-a7a3784128fa1de275b5eb2406f3f46842fdbd1a.tar.gz
focaccia-qemu-a7a3784128fa1de275b5eb2406f3f46842fdbd1a.zip
hw/pci: Use -1 as the default value for rombar
vfio_pci_size_rom() distinguishes whether rombar is explicitly set to 1
by checking dev->opts, bypassing the QOM property infrastructure.

Use -1 as the default value for rombar to tell if the user explicitly
set it to 1. The property is also converted from unsigned to signed.
-1 is signed so it is safe to give it a new meaning. The values in
[2 ^ 31, 2 ^ 32) become invalid, but nobody should have typed these
values by chance.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250104-reuse-v18-13-c349eafd8673@daynix.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Diffstat (limited to 'hw/pci/pci.c')
-rw-r--r--hw/pci/pci.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index b6c630c323..78907527f2 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -85,7 +85,7 @@ static const Property pci_props[] = {
     DEFINE_PROP_PCI_DEVFN("addr", PCIDevice, devfn, -1),
     DEFINE_PROP_STRING("romfile", PCIDevice, romfile),
     DEFINE_PROP_UINT32("romsize", PCIDevice, romsize, UINT32_MAX),
-    DEFINE_PROP_UINT32("rombar",  PCIDevice, rom_bar, 1),
+    DEFINE_PROP_INT32("rombar",  PCIDevice, rom_bar, -1),
     DEFINE_PROP_BIT("multifunction", PCIDevice, cap_present,
                     QEMU_PCI_CAP_MULTIFUNCTION_BITNR, false),
     DEFINE_PROP_BIT("x-pcie-lnksta-dllla", PCIDevice, cap_present,