Revision 5834a83f hw/vfio_pci.c
| b/hw/vfio_pci.c | ||
|---|---|---|
| 1891 | 1891 |
{
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| 1892 | 1892 |
PCIDevice *pdev = DO_UPCAST(PCIDevice, qdev, dev); |
| 1893 | 1893 |
VFIODevice *vdev = DO_UPCAST(VFIODevice, pdev, pdev); |
| 1894 |
uint16_t cmd; |
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| 1894 | 1895 |
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| 1895 |
if (!vdev->reset_works) {
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| 1896 |
return; |
|
| 1897 |
} |
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| 1896 |
DPRINTF("%s(%04x:%02x:%02x.%x)\n", __func__, vdev->host.domain,
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| 1897 |
vdev->host.bus, vdev->host.slot, vdev->host.function); |
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| 1898 |
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| 1899 |
vfio_disable_interrupts(vdev); |
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| 1898 | 1900 |
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| 1899 |
if (ioctl(vdev->fd, VFIO_DEVICE_RESET)) {
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| 1900 |
error_report("vfio: Error unable to reset physical device "
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| 1901 |
"(%04x:%02x:%02x.%x): %m\n", vdev->host.domain, |
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| 1902 |
vdev->host.bus, vdev->host.slot, vdev->host.function); |
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| 1901 |
/* |
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| 1902 |
* Stop any ongoing DMA by disconecting I/O, MMIO, and bus master. |
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| 1903 |
* Also put INTx Disable in known state. |
|
| 1904 |
*/ |
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| 1905 |
cmd = vfio_pci_read_config(pdev, PCI_COMMAND, 2); |
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| 1906 |
cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | |
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PCI_COMMAND_INTX_DISABLE); |
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| 1908 |
vfio_pci_write_config(pdev, PCI_COMMAND, cmd, 2); |
|
| 1909 |
|
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| 1910 |
if (vdev->reset_works) {
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| 1911 |
if (ioctl(vdev->fd, VFIO_DEVICE_RESET)) {
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| 1912 |
error_report("vfio: Error unable to reset physical device "
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| 1913 |
"(%04x:%02x:%02x.%x): %m\n", vdev->host.domain, |
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vdev->host.bus, vdev->host.slot, vdev->host.function); |
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| 1915 |
} |
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| 1903 | 1916 |
} |
| 1917 |
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| 1918 |
vfio_enable_intx(vdev); |
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| 1904 | 1919 |
} |
| 1905 | 1920 |
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| 1906 | 1921 |
static Property vfio_pci_dev_properties[] = {
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