KVM: Move ioapic code to common directory.

[pandora-kernel.git] / virt / kvm / ioapic.h

diff --git a/virt/kvm/ioapic.h b/virt/kvm/ioapic.h
new file mode 100644 (file)
index 0000000..7f16675
--- /dev/null
+++ b/virt/kvm/ioapic.h
@@ -0,0 +1,95 @@
+#ifndef __KVM_IO_APIC_H
+#define __KVM_IO_APIC_H
+
+#include <linux/kvm_host.h>
+
+#include "iodev.h"
+
+struct kvm;
+struct kvm_vcpu;
+
+#define IOAPIC_NUM_PINS  KVM_IOAPIC_NUM_PINS
+#define IOAPIC_VERSION_ID 0x11 /* IOAPIC version */
+#define IOAPIC_EDGE_TRIG  0
+#define IOAPIC_LEVEL_TRIG 1
+
+#define IOAPIC_DEFAULT_BASE_ADDRESS  0xfec00000
+#define IOAPIC_MEM_LENGTH            0x100
+
+/* Direct registers. */
+#define IOAPIC_REG_SELECT  0x00
+#define IOAPIC_REG_WINDOW  0x10
+#define IOAPIC_REG_EOI     0x40        /* IA64 IOSAPIC only */
+
+/* Indirect registers. */
+#define IOAPIC_REG_APIC_ID 0x00        /* x86 IOAPIC only */
+#define IOAPIC_REG_VERSION 0x01
+#define IOAPIC_REG_ARB_ID  0x02        /* x86 IOAPIC only */
+
+/*ioapic delivery mode*/
+#define        IOAPIC_FIXED                    0x0
+#define        IOAPIC_LOWEST_PRIORITY          0x1
+#define        IOAPIC_PMI                      0x2
+#define        IOAPIC_NMI                      0x4
+#define        IOAPIC_INIT                     0x5
+#define        IOAPIC_EXTINT                   0x7
+
+struct kvm_ioapic {
+       u64 base_address;
+       u32 ioregsel;
+       u32 id;
+       u32 irr;
+       u32 pad;
+       union ioapic_redir_entry {
+               u64 bits;
+               struct {
+                       u8 vector;
+                       u8 delivery_mode:3;
+                       u8 dest_mode:1;
+                       u8 delivery_status:1;
+                       u8 polarity:1;
+                       u8 remote_irr:1;
+                       u8 trig_mode:1;
+                       u8 mask:1;
+                       u8 reserve:7;
+                       u8 reserved[4];
+                       u8 dest_id;
+               } fields;
+       } redirtbl[IOAPIC_NUM_PINS];
+       struct kvm_io_device dev;
+       struct kvm *kvm;
+};
+
+#ifdef DEBUG
+#define ASSERT(x)                                                      \
+do {                                                                   \
+       if (!(x)) {                                                     \
+               printk(KERN_EMERG "assertion failed %s: %d: %s\n",      \
+                      __FILE__, __LINE__, #x);                         \
+               BUG();                                                  \
+       }                                                               \
+} while (0)
+#else
+#define ASSERT(x) do { } while (0)
+#endif
+
+static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
+{
+       return kvm->arch.vioapic;
+}
+
+#ifdef CONFIG_IA64
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+       return 1;
+}
+#endif
+
+struct kvm_vcpu *kvm_get_lowest_prio_vcpu(struct kvm *kvm, u8 vector,
+                                      unsigned long bitmap);
+void kvm_ioapic_update_eoi(struct kvm *kvm, int vector);
+int kvm_ioapic_init(struct kvm *kvm);
+void kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int level);
+void kvm_ioapic_reset(struct kvm_ioapic *ioapic);
+
+#endif