Re: [PATCH v3 1/6] include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()

[Anthony PERARD via]

On Sun, Mar 12, 2023 at 01:02:16PM +0100, 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 
> Reviewed-by: Michael S. Tsirkin 

Reviewed-by: Anthony PERARD 

Thanks,

-- 
Anthony PERARD

[PATCH v3 1/6] include/hw/xen/xen: Rename xen_piix3_set_irq() to xen_intx_set_irq()

[Bernhard Beschow]

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 
Reviewed-by: Michael S. Tsirkin 
---
 include/hw/xen/xen.h  | 2 +-
 hw/i386/xen/xen-hvm.c | 2 +-
 hw/isa/piix3.c| 4 ++--
 stubs/xen-hw-stub.c   | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/hw/xen/xen.h b/include/hw/xen/xen.h
index 2bd8ec742d..37ecc91fc3 100644
--- a/include/hw/xen/xen.h
+++ b/include/hw/xen/xen.h
@@ -39,7 +39,7 @@ 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/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c
index 56641a550e..ab8f1b61ee 100644
--- a/hw/i386/xen/xen-hvm.c
+++ b/hw/i386/xen/xen-hvm.c
@@ -143,7 +143,7 @@ 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/piix3.c b/hw/isa/piix3.c
index a9cb39bf21..1b3e23f0d7 100644
--- a/hw/isa/piix3.c
+++ b/hw/isa/piix3.c
@@ -34,7 +34,7 @@
 #include "migration/vmstate.h"
 #include "hw/acpi/acpi_aml_interface.h"
 
-#define XEN_PIIX_NUM_PIRQS  128ULL
+#define XEN_IOAPIC_NUM_PIRQS128ULL
 
 static void piix3_set_irq_pic(PIIX3State *piix3, int pic_irq)
 {
@@ -405,7 +405,7 @@ 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/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)
 {
 }
 
-- 
2.39.2