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-rw-r--r--drivers/acpi/pci_root.c3
-rw-r--r--drivers/pci/probe.c1
-rw-r--r--include/linux/pci.h1
3 files changed, 5 insertions, 0 deletions
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index b3c202d2a433..84030804a763 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -1047,6 +1047,9 @@ struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
if (!(root->osc_control_set & OSC_PCI_EXPRESS_DPC_CONTROL))
host_bridge->native_dpc = 0;
+ if (!(root->osc_ext_control_set & OSC_CXL_ERROR_REPORTING_CONTROL))
+ host_bridge->native_cxl_error = 0;
+
/*
* Evaluate the "PCI Boot Configuration" _DSM Function. If it
* exists and returns 0, we must preserve any PCI resource
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 1779582fb500..f796dfb9b14b 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -596,6 +596,7 @@ static void pci_init_host_bridge(struct pci_host_bridge *bridge)
bridge->native_ltr = 1;
bridge->native_dpc = 1;
bridge->domain_nr = PCI_DOMAIN_NR_NOT_SET;
+ bridge->native_cxl_error = 1;
device_initialize(&bridge->dev);
}
diff --git a/include/linux/pci.h b/include/linux/pci.h
index adffd65e84b4..22319ea71ab0 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -578,6 +578,7 @@ struct pci_host_bridge {
unsigned int native_pme:1; /* OS may use PCIe PME */
unsigned int native_ltr:1; /* OS may use PCIe LTR */
unsigned int native_dpc:1; /* OS may use PCIe DPC */
+ unsigned int native_cxl_error:1; /* OS may use CXL RAS/Events */
unsigned int preserve_config:1; /* Preserve FW resource setup */
unsigned int size_windows:1; /* Enable root bus sizing */
unsigned int msi_domain:1; /* Bridge wants MSI domain */