diff options
| -rw-r--r-- | hw/pci/pcie.c | 9 | ||||
| -rw-r--r-- | include/hw/pci/pcie.h | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 4f935ff420..db9756d861 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -1239,3 +1239,12 @@ void pcie_pasid_init(PCIDevice *dev, uint16_t offset, uint8_t pasid_width, dev->exp.pasid_cap = offset; } + +bool pcie_pasid_enabled(const PCIDevice *dev) +{ + if (!pci_is_express(dev) || !dev->exp.pasid_cap) { + return false; + } + return (pci_get_word(dev->config + dev->exp.pasid_cap + PCI_PASID_CTRL) & + PCI_PASID_CTRL_ENABLE) != 0; +} diff --git a/include/hw/pci/pcie.h b/include/hw/pci/pcie.h index fe82e0a915..dff98ff2c6 100644 --- a/include/hw/pci/pcie.h +++ b/include/hw/pci/pcie.h @@ -154,4 +154,6 @@ void pcie_cap_slot_unplug_request_cb(HotplugHandler *hotplug_dev, void pcie_pasid_init(PCIDevice *dev, uint16_t offset, uint8_t pasid_width, bool exec_perm, bool priv_mod); + +bool pcie_pasid_enabled(const PCIDevice *dev); #endif /* QEMU_PCIE_H */ |