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[Qemu-devel] [PATCH 1/6] pci: add pci_vga_type(), giving the device name


From: Hervé Poussineau
Subject: [Qemu-devel] [PATCH 1/6] pci: add pci_vga_type(), giving the device name of the chosen VGA device
Date: Thu, 29 Dec 2016 23:12:11 +0100

This is in fact a split of pci_vga_init() function in two parts.

Signed-off-by: Hervé Poussineau <address@hidden>
---
 hw/pci/pci.c         | 22 ++++++++++++++++------
 include/hw/pci/pci.h |  1 +
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 24fae16..0d5a862 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -1816,19 +1816,19 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus 
*rootbus,
     return pci_dev;
 }
 
-PCIDevice *pci_vga_init(PCIBus *bus)
+const char *pci_vga_type(void)
 {
     switch (vga_interface_type) {
     case VGA_CIRRUS:
-        return pci_create_simple(bus, -1, "cirrus-vga");
+        return "cirrus-vga";
     case VGA_QXL:
-        return pci_create_simple(bus, -1, "qxl-vga");
+        return "qxl-vga";
     case VGA_STD:
-        return pci_create_simple(bus, -1, "VGA");
+        return "VGA";
     case VGA_VMWARE:
-        return pci_create_simple(bus, -1, "vmware-svga");
+        return "vmware-svga";
     case VGA_VIRTIO:
-        return pci_create_simple(bus, -1, "virtio-vga");
+        return "virtio-vga";
     case VGA_NONE:
     default: /* Other non-PCI types. Checking for unsupported types is already
                 done in vl.c. */
@@ -1836,6 +1836,16 @@ PCIDevice *pci_vga_init(PCIBus *bus)
     }
 }
 
+PCIDevice *pci_vga_init(PCIBus *bus)
+{
+    const char *vga_type = pci_vga_type();
+    if (vga_type) {
+        return pci_create_simple(bus, -1, vga_type);
+    } else {
+        return NULL;
+    }
+}
+
 /* Whether a given bus number is in range of the secondary
  * bus of the given bridge device. */
 static bool pci_secondary_bus_in_range(PCIDevice *dev, int bus_num)
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 772692f..aa8d014 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -420,6 +420,7 @@ PCIDevice *pci_nic_init_nofail(NICInfo *nd, PCIBus *rootbus,
                                const char *default_model,
                                const char *default_devaddr);
 
+const char *pci_vga_type(void);
 PCIDevice *pci_vga_init(PCIBus *bus);
 
 int pci_bus_num(PCIBus *s);
-- 
2.1.4




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