From 20766514d602c50b870ae943aaa8e5b9e2e8a161 Mon Sep 17 00:00:00 2001 From: Frederic Barrat Date: Tue, 16 Nov 2021 18:01:33 +0100 Subject: [PATCH] pcie_aer: Don't trigger a LSI if none are defined MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Skip triggering an LSI when the AER root error status is updated if no LSI is defined for the device. We can have a root bridge with no LSI, MSI and MSI-X defined, for example on POWER systems. Signed-off-by: Frederic Barrat Message-Id: <20211116170133.724751-4-fbarrat@linux.ibm.com> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Cédric Le Goater --- hw/pci/pcie_aer.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/pci/pcie_aer.c b/hw/pci/pcie_aer.c index 27f9cc56af..e1a8a88c8c 100644 --- a/hw/pci/pcie_aer.c +++ b/hw/pci/pcie_aer.c @@ -774,7 +774,9 @@ void pcie_aer_root_write_config(PCIDevice *dev, uint32_t root_cmd = pci_get_long(aer_cap + PCI_ERR_ROOT_COMMAND); /* 6.2.4.1.2 Interrupt Generation */ if (!msix_enabled(dev) && !msi_enabled(dev)) { - pci_set_irq(dev, !!(root_cmd & enabled_cmd)); + if (pci_intx(dev) != -1) { + pci_set_irq(dev, !!(root_cmd & enabled_cmd)); + } return; } -- 2.11.0