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[Qemu-devel] [patch 01/19] qemu: add pci helper functions
From: |
Marcelo Tosatti |
Subject: |
[Qemu-devel] [patch 01/19] qemu: add pci helper functions |
Date: |
Tue, 10 Feb 2009 18:30:52 -0200 |
User-agent: |
quilt/0.46-1 |
Add pci_find_bus/pci_find_device to be used by PCI hotplug.
Signed-off-by: Marcelo Tosatti <address@hidden>
Index: trunk/hw/pci.c
===================================================================
--- trunk.orig/hw/pci.c
+++ trunk/hw/pci.c
@@ -711,6 +711,26 @@ static void pci_bridge_write_config(PCID
pci_default_write_config(d, address, val, len);
}
+PCIBus *pci_find_bus(int bus_num)
+{
+ PCIBus *bus = first_bus;
+
+ while (bus && bus->bus_num != bus_num)
+ bus = bus->next;
+
+ return bus;
+}
+
+PCIDevice *pci_find_device(int bus_num, int slot, int function)
+{
+ PCIBus *bus = pci_find_bus(bus_num);
+
+ if (!bus)
+ return NULL;
+
+ return bus->devices[PCI_DEVFN(slot, function)];
+}
+
PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did,
pci_map_irq_fn map_irq, const char *name)
{
Index: trunk/hw/pci.h
===================================================================
--- trunk.orig/hw/pci.h
+++ trunk/hw/pci.h
@@ -8,6 +8,10 @@
extern target_phys_addr_t pci_mem_base;
+#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
+#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
+#define PCI_FUNC(devfn) ((devfn) & 0x07)
+
/* Device classes and subclasses */
#define PCI_CLASS_STORAGE_SCSI 0x0100
@@ -222,6 +226,8 @@ void pci_data_write(void *opaque, uint32
uint32_t pci_data_read(void *opaque, uint32_t addr, int len);
int pci_bus_num(PCIBus *s);
void pci_for_each_device(int bus_num, void (*fn)(PCIDevice *d));
+PCIBus *pci_find_bus(int bus_num);
+PCIDevice *pci_find_device(int bus_num, int slot, int function);
void pci_info(void);
PCIBus *pci_bridge_init(PCIBus *bus, int devfn, uint16_t vid, uint16_t did,
--
- [Qemu-devel] [patch 00/19] acpi pci hotplug, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 02/19] qemu: return PCIDevice on net device init and record devfn, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 03/19] qemu: dynamic drive/drive_opt index allocation, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 01/19] qemu: add pci helper functions,
Marcelo Tosatti <=
- [Qemu-devel] [patch 04/19] qemu: dynamic nic info index allocation, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 05/19] qemu: drive removal support, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 06/19] qemu: record devfn on block driver instance, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 07/19] qemu: move drives_opt for external use, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 09/19] qemu: add net_client_uninit / qemu_find_vlan_client, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 08/19] qemu: net/drive add/remove tweaks, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 10/19] qemu: add cpu_unregister_io_memory and make io mem table index dynamic, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 11/19] qemu: add qemu_free_irqs, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 12/19] qemu: add pci_unregister_device, Marcelo Tosatti, 2009/02/10
- [Qemu-devel] [patch 13/19] qemu: warn if PCI region is not power of two, Marcelo Tosatti, 2009/02/10