Looks like we didn't mark PCI ROMs as RO allowing
mischief such as guests writing there.
Further, e.g. vhost gets confused trying to allocate
enough space to log writes there. Fix it up.
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: Marcel Apfelbaum <mar...@redhat.com>
Tested-by: Laurent Vivier <lviv...@redhat.com>
---
hw/pci/pci.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index fe9acec..8843ebf 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2192,7 +2192,7 @@ static void pci_add_option_rom(PCIDevice *pdev, bool
is_default_rom,
snprintf(name, sizeof(name), "%s.rom",
object_get_typename(OBJECT(pdev)));
}
pdev->has_rom = true;
- memory_region_init_ram(&pdev->rom, OBJECT(pdev), name, size, &error_fatal);
+ memory_region_init_rom(&pdev->rom, OBJECT(pdev), name, size, &error_fatal);
vmstate_register_ram(&pdev->rom, &pdev->qdev);
ptr = memory_region_get_ram_ptr(&pdev->rom);
load_image(path, ptr);
--
MST
