ipmi: add fwinfo to pci ipmi devices

This requires some adjustments to callers to avoid possible behaviour
changes for PCI devices.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Message-ID: <20250401140153.685523-3-npiggin@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
[Rename pci_ipmi_bt_get_fwinfo to pci_ipmi_kcs_get_fwinfo in the
 pci_ipmi_kcs.c file.]
Signed-off-by: Corey Minyard <corey@minyard.net>

7 files changed, 38 insertions, 2 deletions

diff --git a/hw/acpi/ipmi.c b/hw/acpi/ipmi.c
index a20e57d..39f8f2f 100644
--- a/hw/acpi/ipmi.c
+++ b/hw/acpi/ipmi.c
@@ -55,7 +55,8 @@ static Aml *aml_ipmi_crs(IPMIFwInfo *info)
         abort();
     }
 
-    if (info->interrupt_number) {
+    /* Should PCI interrupts also be appended? */
+    if (info->irq_source == IPMI_ISA_IRQ && info->interrupt_number) {
         aml_append(crs, aml_irq_no_flags(info->interrupt_number));
     }
 
diff --git a/hw/ipmi/isa_ipmi_bt.c b/hw/ipmi/isa_ipmi_bt.c
index 474a792..76585e7 100644
--- a/hw/ipmi/isa_ipmi_bt.c
+++ b/hw/ipmi/isa_ipmi_bt.c
@@ -49,6 +49,7 @@ static void isa_ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
     ISAIPMIBTDevice *iib = ISA_IPMI_BT(ii);
 
     ipmi_bt_get_fwinfo(&iib->bt, info);
+    info->irq_source = IPMI_ISA_IRQ;
     info->interrupt_number = iib->isairq;
     info->i2c_slave_address = iib->bt.bmc->slave_addr;
     info->uuid = iib->uuid;
diff --git a/hw/ipmi/isa_ipmi_kcs.c b/hw/ipmi/isa_ipmi_kcs.c
index 94bbe45..ba3ae20 100644
--- a/hw/ipmi/isa_ipmi_kcs.c
+++ b/hw/ipmi/isa_ipmi_kcs.c
@@ -49,6 +49,7 @@ static void isa_ipmi_kcs_get_fwinfo(IPMIInterface *ii, IPMIFwInfo *info)
     ISAIPMIKCSDevice *iik = ISA_IPMI_KCS(ii);
 
     ipmi_kcs_get_fwinfo(&iik->kcs, info);
+    info->irq_source = IPMI_ISA_IRQ;
     info->interrupt_number = iik->isairq;
     info->uuid = iik->uuid;
 }
diff --git a/hw/ipmi/pci_ipmi_bt.c b/hw/ipmi/pci_ipmi_bt.c
index a3b742d..7ba8b3a 100644
--- a/hw/ipmi/pci_ipmi_bt.c
+++ b/hw/ipmi/pci_ipmi_bt.c
@@ -38,6 +38,17 @@ struct PCIIPMIBTDevice {
     uint32_t uuid;
 };
 
+static void pci_ipmi_bt_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
+{
+    PCIIPMIBTDevice *pib = PCI_IPMI_BT(ii);
+
+    ipmi_bt_get_fwinfo(&pib->bt, info);
+    info->irq_source = IPMI_PCI_IRQ;
+    info->interrupt_number = pci_intx(&pib->dev);
+    info->i2c_slave_address = pib->bt.bmc->slave_addr;
+    info->uuid = pib->uuid;
+}
+
 static void pci_ipmi_raise_irq(IPMIBT *ib)
 {
     PCIIPMIBTDevice *pib = ib->opaque;
@@ -125,6 +136,7 @@ static void pci_ipmi_bt_class_init(ObjectClass *oc, void *data)
 
     iic->get_backend_data = pci_ipmi_bt_get_backend_data;
     ipmi_bt_class_init(iic);
+    iic->get_fwinfo = pci_ipmi_bt_get_fwinfo;
 }
 
 static const TypeInfo pci_ipmi_bt_info = {
diff --git a/hw/ipmi/pci_ipmi_kcs.c b/hw/ipmi/pci_ipmi_kcs.c
index 05ba97e..0aa3514 100644
--- a/hw/ipmi/pci_ipmi_kcs.c
+++ b/hw/ipmi/pci_ipmi_kcs.c
@@ -38,6 +38,16 @@ struct PCIIPMIKCSDevice {
     uint32_t uuid;
 };
 
+static void pci_ipmi_kcs_get_fwinfo(struct IPMIInterface *ii, IPMIFwInfo *info)
+{
+    PCIIPMIKCSDevice *pik = PCI_IPMI_KCS(ii);
+
+    ipmi_kcs_get_fwinfo(&pik->kcs, info);
+    info->irq_source = IPMI_PCI_IRQ;
+    info->interrupt_number = pci_intx(&pik->dev);
+    info->uuid = pik->uuid;
+}
+
 static void pci_ipmi_raise_irq(IPMIKCS *ik)
 {
     PCIIPMIKCSDevice *pik = ik->opaque;
@@ -125,6 +135,7 @@ static void pci_ipmi_kcs_class_init(ObjectClass *oc, void *data)
 
     iic->get_backend_data = pci_ipmi_kcs_get_backend_data;
     ipmi_kcs_class_init(iic);
+    iic->get_fwinfo = pci_ipmi_kcs_get_fwinfo;
 }
 
 static const TypeInfo pci_ipmi_kcs_info = {
diff --git a/hw/smbios/smbios_type_38.c b/hw/smbios/smbios_type_38.c
index 168b886..e9b856f 100644
--- a/hw/smbios/smbios_type_38.c
+++ b/hw/smbios/smbios_type_38.c
@@ -72,7 +72,12 @@ static void smbios_build_one_type_38(IPMIFwInfo *info)
                      " SMBIOS, ignoring this entry.", info->register_spacing);
         return;
     }
-    t->interrupt_number = info->interrupt_number;
+    if (info->irq_source == IPMI_ISA_IRQ) {
+        t->interrupt_number = info->interrupt_number;
+    } else {
+        /* TODO: How to handle PCI? */
+        t->interrupt_number = 0;
+    }
 
     SMBIOS_BUILD_TABLE_POST;
 }
diff --git a/include/hw/ipmi/ipmi.h b/include/hw/ipmi/ipmi.h
index 77a7213..c8ef048 100644
--- a/include/hw/ipmi/ipmi.h
+++ b/include/hw/ipmi/ipmi.h
@@ -91,6 +91,11 @@ typedef struct IPMIFwInfo {
 
     int interrupt_number;
     enum {
+        IPMI_NO_IRQ = 0,
+        IPMI_ISA_IRQ,
+        IPMI_PCI_IRQ,
+    } irq_source;
+    enum {
         IPMI_LEVEL_IRQ,
         IPMI_EDGE_IRQ
     } irq_type;