[PULL 29/63] hw/pci: Do not add ROM BAR for SR-IOV VF

[Michael S. Tsirkin]

From: Akihiko Odaki <akihiko.odaki@daynix.com>

A SR-IOV VF cannot have a ROM BAR.

Co-developed-by: Yui Washizu <yui.washidu@gmail.com>
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240715-sriov-v5-1-3f5539093ffc@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/pci/pci.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 4c7be52951..bd956637bc 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -2359,6 +2359,14 @@ static void pci_add_option_rom(PCIDevice *pdev, bool 
is_default_rom,
         return;
     }
 
+    if (pci_is_vf(pdev)) {
+        if (pdev->rom_bar == ON_OFF_AUTO_ON) {
+            error_setg(errp, "ROM BAR cannot be enabled for SR-IOV VF");
+        }
+
+        return;
+    }
+
     if (load_file || pdev->romsize == UINT32_MAX) {
         path = qemu_find_file(QEMU_FILE_TYPE_BIOS, pdev->romfile);
         if (path == NULL) {
-- 
MST