[Xen-devel] [PATCH v2 6/7] x86/ioapic: add prototype for apic_gsi_base to io_apic.h

[Roger Pau Monne <roger.pau@xxxxxxxxxx>]

So that the function can be called from other files without adding prototypes
to each of them.

Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
---
Cc: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
Changes since v1:
 - Add io_ prefix to avoid confusion.
 - Make the parameter unsigned.
---
 xen/arch/x86/io_apic.c        | 4 +---
 xen/arch/x86/mpparse.c        | 2 +-
 xen/include/asm-x86/io_apic.h | 3 +++
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/xen/arch/x86/io_apic.c b/xen/arch/x86/io_apic.c
index 24ee431b00..d18046067c 100644
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -2274,8 +2274,6 @@ static int ioapic_physbase_to_id(unsigned long physbase)
     return -EINVAL;
 }
 
-unsigned apic_gsi_base(int apic);
-
 static int apic_pin_2_gsi_irq(int apic, int pin)
 {
     int idx;
@@ -2286,7 +2284,7 @@ static int apic_pin_2_gsi_irq(int apic, int pin)
     idx = find_irq_entry(apic, pin, mp_INT);
 
     return idx >= 0 ? pin_2_irq(idx, apic, pin)
-                    : apic_gsi_base(apic) + pin;
+                    : io_apic_gsi_base(apic) + pin;
 }
 
 int ioapic_guest_read(unsigned long physbase, unsigned int reg, u32 *pval)
diff --git a/xen/arch/x86/mpparse.c b/xen/arch/x86/mpparse.c
index 1eb7c99ea7..efcbc6115d 100644
--- a/xen/arch/x86/mpparse.c
+++ b/xen/arch/x86/mpparse.c
@@ -913,7 +913,7 @@ unsigned __init highest_gsi(void)
        return res;
 }
 
-unsigned apic_gsi_base(int apic)
+unsigned int io_apic_gsi_base(unsigned int apic)
 {
        return mp_ioapic_routing[apic].gsi_base;
 }
diff --git a/xen/include/asm-x86/io_apic.h b/xen/include/asm-x86/io_apic.h
index 225edd63b2..8029c8f400 100644
--- a/xen/include/asm-x86/io_apic.h
+++ b/xen/include/asm-x86/io_apic.h
@@ -127,6 +127,9 @@ struct __packed IO_APIC_route_entry {
 /* I/O APIC entries */
 extern struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS];
 
+/* Base GSI for this IO APIC */
+unsigned int io_apic_gsi_base(unsigned int apic);
+
 /* Only need to remap ioapic RTE (reg: 10~3Fh) */
 #define ioapic_reg_remapped(reg) (iommu_intremap && ((reg) >= 0x10))
 
-- 
2.12.1


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