mirror of
https://github.com/torvalds/linux.git
synced 2024-12-24 20:01:55 +00:00
a3e06bbe84
This patch emulate lapic tsc deadline timer for guest: Enumerate tsc deadline timer capability by CPUID; Enable tsc deadline timer mode by lapic MMIO; Start tsc deadline timer by WRMSR; [jan: use do_div()] [avi: fix for !irqchip_in_kernel()] [marcelo: another fix for !irqchip_in_kernel()] Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
#ifndef __KVM_X86_LAPIC_H
|
|
#define __KVM_X86_LAPIC_H
|
|
|
|
#include "iodev.h"
|
|
#include "kvm_timer.h"
|
|
|
|
#include <linux/kvm_host.h>
|
|
|
|
struct kvm_lapic {
|
|
unsigned long base_address;
|
|
struct kvm_io_device dev;
|
|
struct kvm_timer lapic_timer;
|
|
u32 divide_count;
|
|
struct kvm_vcpu *vcpu;
|
|
bool irr_pending;
|
|
void *regs;
|
|
gpa_t vapic_addr;
|
|
struct page *vapic_page;
|
|
};
|
|
int kvm_create_lapic(struct kvm_vcpu *vcpu);
|
|
void kvm_free_lapic(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_apic_has_interrupt(struct kvm_vcpu *vcpu);
|
|
int kvm_apic_accept_pic_intr(struct kvm_vcpu *vcpu);
|
|
int kvm_get_apic_interrupt(struct kvm_vcpu *vcpu);
|
|
void kvm_lapic_reset(struct kvm_vcpu *vcpu);
|
|
u64 kvm_lapic_get_cr8(struct kvm_vcpu *vcpu);
|
|
void kvm_lapic_set_tpr(struct kvm_vcpu *vcpu, unsigned long cr8);
|
|
void kvm_lapic_set_eoi(struct kvm_vcpu *vcpu);
|
|
void kvm_lapic_set_base(struct kvm_vcpu *vcpu, u64 value);
|
|
u64 kvm_lapic_get_base(struct kvm_vcpu *vcpu);
|
|
void kvm_apic_set_version(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
|
|
int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
|
|
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq);
|
|
|
|
u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
|
|
void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
|
|
void kvm_apic_post_state_restore(struct kvm_vcpu *vcpu);
|
|
int kvm_lapic_enabled(struct kvm_vcpu *vcpu);
|
|
bool kvm_apic_present(struct kvm_vcpu *vcpu);
|
|
int kvm_lapic_find_highest_irr(struct kvm_vcpu *vcpu);
|
|
|
|
u64 kvm_get_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu);
|
|
void kvm_set_lapic_tscdeadline_msr(struct kvm_vcpu *vcpu, u64 data);
|
|
|
|
void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr);
|
|
void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu);
|
|
void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu);
|
|
|
|
int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
|
|
int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
|
|
|
|
int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data);
|
|
int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
|
|
|
|
static inline bool kvm_hv_vapic_assist_page_enabled(struct kvm_vcpu *vcpu)
|
|
{
|
|
return vcpu->arch.hv_vapic & HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE;
|
|
}
|
|
#endif
|