arch/x86/kvm/lapic.h

   1 #ifndef __KVM_X86_LAPIC_H
   2 #define __KVM_X86_LAPIC_H
   3
   4 #include "iodev.h"
   5 #include "kvm_timer.h"
   6
   7 #include <linux/kvm_host.h>
   8
   9 struct kvm_lapic {
  10         unsigned long base_address;
  11         struct kvm_io_device dev;
  12         struct kvm_timer lapic_timer;
  13         u32 divide_count;
  14         struct kvm_vcpu *vcpu;
  15         bool irr_pending;
  16         /* Number of bits set in ISR. */
  17         s16 isr_count;
  18         /* The highest vector set in ISR; if -1 - invalid, must scan ISR. */
  19         int highest_isr_cache;
  20         /**
  21          * APIC register page.  The layout matches the register layout seen by
  22          * the guest 1:1, because it is accessed by the vmx microcode.
  23          * Note: Only one register, the TPR, is used by the microcode.
  24          */
  25         void *regs;
  26         gpa_t vapic_addr;
  27         struct page *vapic_page;
  28 };
  29 int kvm_create_lapic(struct kvm_vcpu *vcpu);
  30 void kvm_free_lapic(struct kvm_vcpu *vcpu);
  31
  32 int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
  33 int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
  34 int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
  35 void kvm_lapic_reset(struct kvm_vcpu *vcpu);
  36 u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
  37 void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
  38 void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu);
  39 void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
  40 u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu);
  41 void kvm_apic_set_version(struct kvm_vcpu *vcpu);
  42
  43 int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
  44 int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
  45 int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq);
  46 int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
  47
  48 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
  49 void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
  50 void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
  51 int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
  52 bool kvm_apic_present(struct kvm_vcpu *vcpu);
  53 int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
  54
  55 u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
  56 void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);
  57
  58 void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
  59 void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
  60 void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
  61
  62 int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
  63 int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
  64
  65 int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
  66 int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
  67
  68 static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
  69 {
  70         return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
  71 }
  72
  73 int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data);
  74 #endif