[v2,1/6] include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()

Commit Message

Bernhard Beschow Jan. 4, 2023, 2:44 p.m. UTC

xen_piix3_set_irq() isn't PIIX specific: PIIX is a single PCI device
while xen_piix3_set_irq() maps multiple PCI devices to their respective
IRQs, which is board-specific. Rename xen_piix3_set_irq() to communicate
this.

Also rename XEN_PIIX_NUM_PIRQS to XEN_IOAPIC_NUM_PIRQS since the Xen's
IOAPIC rather than PIIX has this many interrupt routes.

Signed-off-by: Bernhard Beschow <[e-mail]>
---
 hw/i386/xen/xen-hvm.c | 2 +-
 hw/isa/piix.c         | 4 ++--
 include/hw/xen/xen.h  | 2 +-
 stubs/xen-hw-stub.c   | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

Comments

Philippe Mathieu-Daudé Jan. 4, 2023, 3:17 p.m. UTC | #1

On 4/1/23 15:44, Bernhard Beschow wrote:
> xen_piix3_set_irq() isn't PIIX specific: PIIX is a single PCI device
> while xen_piix3_set_irq() maps multiple PCI devices to their respective
> IRQs, which is board-specific. Rename xen_piix3_set_irq() to communicate
> this.
> 
> Also rename XEN_PIIX_NUM_PIRQS to XEN_IOAPIC_NUM_PIRQS since the Xen's
> IOAPIC rather than PIIX has this many interrupt routes.
> 
> Signed-off-by: Bernhard Beschow <[e-mail]>
> ---
>   hw/i386/xen/xen-hvm.c | 2 +-
>   hw/isa/piix.c         | 4 ++--
>   include/hw/xen/xen.h  | 2 +-
>   stubs/xen-hw-stub.c   | 2 +-
>   4 files changed, 5 insertions(+), 5 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <[e-mail]>

Patch

diff --git a/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c
index e4293d6d66..558c43309e 100644
--- a/hw/i386/xen/xen-hvm.c
+++ b/hw/i386/xen/xen-hvm.c
@@ -142,7 +142,7 @@  int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
     return irq_num + (PCI_SLOT(pci_dev->devfn) << 2);
 }
 
-void xen_piix3_set_irq(void *opaque, int irq_num, int level)
+void xen_intx_set_irq(void *opaque, int irq_num, int level)
 {
     xen_set_pci_intx_level(xen_domid, 0, 0, irq_num >> 2,
                            irq_num & 3, level);
diff --git a/hw/isa/piix.c b/hw/isa/piix.c
index ae8a27c53c..a7a4eec206 100644
--- a/hw/isa/piix.c
+++ b/hw/isa/piix.c
@@ -38,7 +38,7 @@ 
 #include "migration/vmstate.h"
 #include "hw/acpi/acpi_aml_interface.h"
 
-#define XEN_PIIX_NUM_PIRQS      128ULL
+#define XEN_IOAPIC_NUM_PIRQS    128ULL
 
 static void piix_set_irq_pic(PIIXState *piix, int pic_irq)
 {
@@ -504,7 +504,7 @@  static void piix3_xen_realize(PCIDevice *dev, Error **errp)
      * connected to the IOAPIC directly.
      * These additional routes can be discovered through ACPI.
      */
-    pci_bus_irqs(pci_bus, xen_piix3_set_irq, piix3, XEN_PIIX_NUM_PIRQS);
+    pci_bus_irqs(pci_bus, xen_intx_set_irq, piix3, XEN_IOAPIC_NUM_PIRQS);
 }
 
 static void piix3_xen_class_init(ObjectClass *klass, void *data)
diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index afdf9c436a..7c83ecf6b9 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -22,7 +22,7 @@  extern bool xen_domid_restrict;
 
 int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num);
 int xen_set_pci_link_route(uint8_t link, uint8_t irq);
-void xen_piix3_set_irq(void *opaque, int irq_num, int level);
+void xen_intx_set_irq(void *opaque, int irq_num, int level);
 void xen_hvm_inject_msi(uint64_t addr, uint32_t data);
 int xen_is_pirq_msi(uint32_t msi_data);
 
diff --git a/stubs/xen-hw-stub.c b/stubs/xen-hw-stub.c
index 34a22f2ad7..7d7ffe83a9 100644
--- a/stubs/xen-hw-stub.c
+++ b/stubs/xen-hw-stub.c
@@ -15,7 +15,7 @@  int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
     return -1;
 }
 
-void xen_piix3_set_irq(void *opaque, int irq_num, int level)
+void xen_intx_set_irq(void *opaque, int irq_num, int level)
 {
 }