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| author | Julia Suvorova <jusual@redhat.com> | 2021-07-13 02:42:02 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2021-07-16 04:33:35 -0400 |
| commit | 3f3cbbb2369ebba67cccf8c60d6a0043b315e17c (patch) | |
| tree | 5cbace8709b89fc927a9656728db45343323d186 /hw/pci/pcie.c | |
| parent | c0e427d6eb5fefc5382ab01e78611740db1b5d06 (diff) | |
| download | focaccia-qemu-3f3cbbb2369ebba67cccf8c60d6a0043b315e17c.tar.gz focaccia-qemu-3f3cbbb2369ebba67cccf8c60d6a0043b315e17c.zip | |
hw/pci/pcie: Do not set HPC flag if acpihp is used
Instead of changing the hot-plug type in _OSC register, do not set the 'Hot-Plug Capable' flag. This way guest will choose ACPI hot-plug if it is preferred and leave the option to use SHPC with pcie-pci-bridge. The ability to control hot-plug for each downstream port is retained, while 'hotplug=off' on the port means all hot-plug types are disabled. Signed-off-by: Julia Suvorova <jusual@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Message-Id: <20210713004205.775386-4-jusual@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 | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c index fd0fa157e8..6e95d82903 100644 --- a/hw/pci/pcie.c +++ b/hw/pci/pcie.c @@ -529,7 +529,13 @@ void pcie_cap_slot_init(PCIDevice *dev, PCIESlot *s) PCI_EXP_SLTCAP_PIP | PCI_EXP_SLTCAP_AIP | PCI_EXP_SLTCAP_ABP); - if (s->hotplug) { + + /* + * Enable native hot-plug on all hot-plugged bridges unless + * hot-plug is disabled on the slot. + */ + if (s->hotplug && + (s->native_hotplug || DEVICE(dev)->hotplugged)) { pci_long_test_and_set_mask(dev->config + pos + PCI_EXP_SLTCAP, PCI_EXP_SLTCAP_HPS | PCI_EXP_SLTCAP_HPC); |