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authorPaolo Bonzini <pbonzini@redhat.com>2014-11-20 15:45:31 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2014-11-21 20:02:37 +0300
commit6ef768fac9dfe3404d3fdc09909ea203a88f2f38 (patch)
tree6bfd08a6a7527bc94b015fe7c0177af51efa5434 /arch/x86/kvm/ioapic.h
parentc32a42721ce67594e4481a961aa149055de9c1d9 (diff)
downloadlinux-6ef768fac9dfe3404d3fdc09909ea203a88f2f38.tar.xz
kvm: x86: move ioapic.c and irq_comm.c back to arch/x86/
ia64 does not need them anymore. Ack notifiers become x86-specific too. Suggested-by: Gleb Natapov <gleb@kernel.org> Reviewed-by: Radim Krcmar <rkrcmar@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/ioapic.h')
-rw-r--r--arch/x86/kvm/ioapic.h102
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
new file mode 100644
index 000000000000..deac8d509f2a
--- /dev/null
+++ b/arch/x86/kvm/ioapic.h
@@ -0,0 +1,102 @@
+#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
+
+/* 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
+
+#ifdef CONFIG_X86
+#define RTC_GSI 8
+#else
+#define RTC_GSI -1U
+#endif
+
+struct rtc_status {
+ int pending_eoi;
+ DECLARE_BITMAP(dest_map, KVM_MAX_VCPUS);
+};
+
+struct kvm_ioapic {
+ u64 base_address;
+ u32 ioregsel;
+ u32 id;
+ u32 irr;
+ u32 pad;
+ union kvm_ioapic_redirect_entry redirtbl[IOAPIC_NUM_PINS];
+ unsigned long irq_states[IOAPIC_NUM_PINS];
+ struct kvm_io_device dev;
+ struct kvm *kvm;
+ void (*ack_notifier)(void *opaque, int irq);
+ spinlock_t lock;
+ DECLARE_BITMAP(handled_vectors, 256);
+ struct rtc_status rtc_status;
+ struct delayed_work eoi_inject;
+ u32 irq_eoi[IOAPIC_NUM_PINS];
+};
+
+#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;
+}
+
+void kvm_rtc_eoi_tracking_restore_one(struct kvm_vcpu *vcpu);
+int kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
+ int short_hand, unsigned int dest, int dest_mode);
+int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
+void kvm_ioapic_update_eoi(struct kvm_vcpu *vcpu, int vector,
+ int trigger_mode);
+bool kvm_ioapic_handles_vector(struct kvm *kvm, int vector);
+int kvm_ioapic_init(struct kvm *kvm);
+void kvm_ioapic_destroy(struct kvm *kvm);
+int kvm_ioapic_set_irq(struct kvm_ioapic *ioapic, int irq, int irq_source_id,
+ int level, bool line_status);
+void kvm_ioapic_clear_all(struct kvm_ioapic *ioapic, int irq_source_id);
+int kvm_irq_delivery_to_apic(struct kvm *kvm, struct kvm_lapic *src,
+ struct kvm_lapic_irq *irq, unsigned long *dest_map);
+int kvm_get_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
+int kvm_set_ioapic(struct kvm *kvm, struct kvm_ioapic_state *state);
+void kvm_ioapic_scan_entry(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap,
+ u32 *tmr);
+
+#endif