This ensures that no vector is left over from the previous usage that could trigger unexpected or even invalid interrupts when the new user starts configuring the device.
Signed-off-by: Jan Kiszka <[email protected]> --- hypervisor/pci.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/hypervisor/pci.c b/hypervisor/pci.c index 913fde5..2f95dd7 100644 --- a/hypervisor/pci.c +++ b/hypervisor/pci.c @@ -577,10 +577,16 @@ void pci_reset_device(struct pci_device *device) pci_write_config(device->info->bdf, PCI_CFG_COMMAND, PCI_CMD_INTX_OFF, 2); - for_each_pci_cap(cap, device, n) + for_each_pci_cap(cap, device, n) { if (cap->id == PCI_CAP_MSI || cap->id == PCI_CAP_MSIX) /* Disable MSI/MSI-X by clearing the control word. */ pci_write_config(device->info->bdf, cap->start+2, 0, 2); + if (cap->id == PCI_CAP_MSIX) + /* Mask each MSI-X vector also physically. */ + for (n = 0; n < device->info->num_msix_vectors; n++) + mmio_write32(&device->msix_table[n].raw[3], + device->msix_vectors[n].raw[3]); + } } static int pci_add_physical_device(struct cell *cell, struct pci_device *device) -- 2.1.4 -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
