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[Qemu-devel] [PATCH 5/6] initialize i8259 chip
From: |
Glauber Costa |
Subject: |
[Qemu-devel] [PATCH 5/6] initialize i8259 chip |
Date: |
Mon, 28 Sep 2009 18:15:16 -0300 |
If we have irqchip in kernel (which we currently do not), intialize
the i8259 chip. This code is heavily inspirated by the one in qemu-kvm.git
Note that we wire isa irqs trough it too.
Signed-off-by: Glauber Costa <address@hidden>
---
hw/pc.c | 14 +++++++++++---
kvm-all.c | 2 +-
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/hw/pc.c b/hw/pc.c
index fa82b58..3049e67 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -39,6 +39,7 @@
#include "ide.h"
#include "loader.h"
#include "elf.h"
+#include "kvm.h"
/* output Bochs bios info messages */
//#define DEBUG_BIOS
@@ -1284,10 +1285,17 @@ static void pc_init1(ram_addr_t ram_size,
}
cpu_irq = qemu_allocate_irqs(pic_irq_request, NULL, 1);
- i8259 = i8259_init(cpu_irq[0]);
isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
- isa_irq_state->i8259 = i8259;
- isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
+
+#ifdef KVM_CAP_IRQCHIP
+ if (kvm_enabled() && kvm_irqchip_in_kernel()) {
+ isa_irq = i8259 = kvm_i8259_init(cpu_irq[0]);
+ } else
+#endif
+ {
+ isa_irq_state->i8259 = i8259 = i8259_init(cpu_irq[0]);
+ isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
+ }
if (pci_enabled) {
pci_bus = i440fx_init(&i440fx_state, &piix3_devfn, isa_irq);
diff --git a/kvm-all.c b/kvm-all.c
index 662017f..50616d1 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -429,7 +429,6 @@ int kvm_get_irqchip(struct kvm_irqchip *chip)
return kvm_vm_ioctl(kvm_state, KVM_GET_IRQCHIP, chip);
}
-#endif
int kvm_set_irq(int irq, int level, int *status)
{
@@ -454,6 +453,7 @@ int kvm_set_irq(int irq, int level, int *status)
return 1;
}
+#endif
int kvm_init(int smp_cpus)
{
--
1.6.2.5
Message not available
Re: [Qemu-devel] [PATCH 0/6] in kernel irqchip support, Jamie Lokier, 2009/09/28
Re: [Qemu-devel] [PATCH 0/6] in kernel irqchip support, Avi Kivity, 2009/09/29
Re: [Qemu-devel] [PATCH 0/6] in kernel irqchip support, Anthony Liguori, 2009/09/30