@@ -90,7 +90,20 @@ static inline int pci_bar(int reg)
static void pci_device_reset(PCIDevice *dev)
{
+ int r;
+
memset(dev->irq_state, 0, sizeof dev->irq_state);
+ dev->config[PCI_COMMAND] &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER);
+ dev->config[PCI_CACHE_LINE_SIZE] = 0x0;
+ dev->config[PCI_INTERRUPT_LINE] = 0x0;
+ for (r = 0; r < PCI_NUM_REGIONS; ++r) {
+ if (!dev->io_regions[r].size) {
+ continue;
+ }
+ pci_set_long(dev->config + pci_bar(r), dev->io_regions[r].type);
+ }
+ pci_update_mappings(dev);
}
static void pci_bus_reset(void *opaque)
Reset BARs and a couple of other registers on bus reset, as per PCI spec. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> --- hw/pci.c | 13 +++++++++++++ 1 files changed, 13 insertions(+), 0 deletions(-)