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| author | Marcel Apfelbaum <marcel@redhat.com> | 2017-02-20 22:43:12 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2017-03-16 01:46:41 +0200 |
| commit | d584f1b9ca7452ed8d6cd80f7fccd79d667ae49b (patch) | |
| tree | 7bff296599edb06fae38918ee3bfaac35ed51b10 /hw/pci/pcie.c | |
| parent | c2cabb34220d63f93e4a0162a26535cbd1f30243 (diff) | |
| download | focaccia-qemu-d584f1b9ca7452ed8d6cd80f7fccd79d667ae49b.tar.gz focaccia-qemu-d584f1b9ca7452ed8d6cd80f7fccd79d667ae49b.zip | |
hw/virtio: fix Link Control Register for PCI Express virtio devices
Make several Link Control Register flags writable to conform with the PCI Express spec. Signed-off-by: Marcel Apfelbaum <marcel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/pci/pcie.c')
| -rw-r--r-- | hw/pci/pcie.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index 82a890234f..18e634f577 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -223,6 +223,20 @@ void pcie_cap_deverr_reset(PCIDevice *dev) PCI_EXP_DEVCTL_FERE | PCI_EXP_DEVCTL_URRE); } +void pcie_cap_lnkctl_init(PCIDevice *dev) +{ + uint32_t pos = dev->exp.exp_cap; + pci_long_test_and_set_mask(dev->wmask + pos + PCI_EXP_LNKCTL, + PCI_EXP_LNKCTL_CCC | PCI_EXP_LNKCTL_ES); +} + +void pcie_cap_lnkctl_reset(PCIDevice *dev) +{ + uint8_t *lnkctl = dev->config + dev->exp.exp_cap + PCI_EXP_LNKCTL; + pci_long_test_and_clear_mask(lnkctl, + PCI_EXP_LNKCTL_CCC | PCI_EXP_LNKCTL_ES); +} + static void hotplug_event_update_event_status(PCIDevice *dev) { uint32_t pos = dev->exp.exp_cap; |