diff options
Diffstat (limited to 'hw/virtio')
| -rw-r--r-- | hw/virtio/virtio-pci.c | 10 | ||||
| -rw-r--r-- | hw/virtio/virtio-pci.h | 4 |
2 files changed, 14 insertions, 0 deletions
diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c index 8babd92..0075b3e 100644 --- a/hw/virtio/virtio-pci.c +++ b/hw/virtio/virtio-pci.c @@ -601,6 +601,10 @@ static void virtio_write_config(PCIDevice *pci_dev, uint32_t address, pci_default_write_config(pci_dev, address, val, len); + if (proxy->flags & VIRTIO_PCI_FLAG_INIT_FLR) { + pcie_cap_flr_write_config(pci_dev, address, val, len); + } + if (range_covers_byte(address, len, PCI_COMMAND) && !(pci_dev->config[PCI_COMMAND] & PCI_COMMAND_MASTER)) { virtio_pci_stop_ioeventfd(proxy); @@ -1777,6 +1781,10 @@ static void virtio_pci_realize(PCIDevice *pci_dev, Error **errp) pcie_ats_init(pci_dev, 256); } + if (proxy->flags & VIRTIO_PCI_FLAG_INIT_FLR) { + /* Set Function Level Reset capability bit */ + pcie_cap_flr_init(pci_dev); + } } else { /* * make future invocations of pci_is_express() return false @@ -1844,6 +1852,8 @@ static Property virtio_pci_properties[] = { VIRTIO_PCI_FLAG_INIT_LNKCTL_BIT, true), DEFINE_PROP_BIT("x-pcie-pm-init", VirtIOPCIProxy, flags, VIRTIO_PCI_FLAG_INIT_PM_BIT, true), + DEFINE_PROP_BIT("x-pcie-flr-init", VirtIOPCIProxy, flags, + VIRTIO_PCI_FLAG_INIT_FLR_BIT, true), DEFINE_PROP_END_OF_LIST(), }; diff --git a/hw/virtio/virtio-pci.h b/hw/virtio/virtio-pci.h index 292275a..e2eaaa9 100644 --- a/hw/virtio/virtio-pci.h +++ b/hw/virtio/virtio-pci.h @@ -44,6 +44,7 @@ enum { VIRTIO_PCI_FLAG_INIT_DEVERR_BIT, VIRTIO_PCI_FLAG_INIT_LNKCTL_BIT, VIRTIO_PCI_FLAG_INIT_PM_BIT, + VIRTIO_PCI_FLAG_INIT_FLR_BIT, }; /* Need to activate work-arounds for buggy guests at vmstate load. */ @@ -80,6 +81,9 @@ enum { /* Init Power Management */ #define VIRTIO_PCI_FLAG_INIT_PM (1 << VIRTIO_PCI_FLAG_INIT_PM_BIT) +/* Init Function Level Reset capability */ +#define VIRTIO_PCI_FLAG_INIT_FLR (1 << VIRTIO_PCI_FLAG_INIT_FLR_BIT) + typedef struct { MSIMessage msg; int virq; |