Contributors: 43
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Avi Kivity |
322 |
22.35% |
10 |
8.06% |
| Gleb Natapov |
246 |
17.07% |
16 |
12.90% |
| Eddie Dong |
236 |
16.38% |
7 |
5.65% |
| Suravee Suthikulpanit |
54 |
3.75% |
4 |
3.23% |
| Jim Mattson |
46 |
3.19% |
2 |
1.61% |
| Sean Christopherson |
43 |
2.98% |
9 |
7.26% |
| Jan Kiszka |
41 |
2.85% |
2 |
1.61% |
| Feng Wu |
40 |
2.78% |
2 |
1.61% |
| Yang Zhang |
39 |
2.71% |
6 |
4.84% |
| Paolo Bonzini |
34 |
2.36% |
8 |
6.45% |
| Marcelo Tosatti |
33 |
2.29% |
2 |
1.61% |
| Xiantao Zhang |
32 |
2.22% |
3 |
2.42% |
| Jue Wang |
30 |
2.08% |
3 |
2.42% |
| Wanpeng Li |
24 |
1.67% |
5 |
4.03% |
| Radim Krčmář |
20 |
1.39% |
6 |
4.84% |
| Michael S. Tsirkin |
20 |
1.39% |
4 |
3.23% |
| Sheng Yang |
20 |
1.39% |
3 |
2.42% |
| Andrey Smetanin |
19 |
1.32% |
3 |
2.42% |
| James Sullivan |
12 |
0.83% |
1 |
0.81% |
| Cun Li |
11 |
0.76% |
1 |
0.81% |
| Wincy Van |
11 |
0.76% |
1 |
0.81% |
| Nadav Amit |
11 |
0.76% |
2 |
1.61% |
| Liran Alon |
10 |
0.69% |
1 |
0.81% |
| Peter Shier |
10 |
0.69% |
1 |
0.81% |
| Liu Jinsong |
9 |
0.62% |
1 |
0.81% |
| Nitesh Narayan Lal |
8 |
0.56% |
1 |
0.81% |
| Yunhong Jiang |
8 |
0.56% |
1 |
0.81% |
| Ladi Prosek |
8 |
0.56% |
2 |
1.61% |
| Joerg Roedel |
7 |
0.49% |
1 |
0.81% |
| David Matlack |
6 |
0.42% |
1 |
0.81% |
| Jason Baron |
4 |
0.28% |
1 |
0.81% |
| Qing He |
4 |
0.28% |
2 |
1.61% |
| Wei Yang |
4 |
0.28% |
1 |
0.81% |
| Harvey Harrison |
4 |
0.28% |
1 |
0.81% |
| Andrew Honig |
3 |
0.21% |
1 |
0.81% |
| Peter Xu |
2 |
0.14% |
2 |
1.61% |
| Hao Peng |
2 |
0.14% |
1 |
0.81% |
| Hollis Blanchard |
2 |
0.14% |
1 |
0.81% |
| Kevin Tian |
2 |
0.14% |
1 |
0.81% |
| Vitaly Kuznetsov |
1 |
0.07% |
1 |
0.81% |
| Rusty Russell |
1 |
0.07% |
1 |
0.81% |
| Greg Kroah-Hartman |
1 |
0.07% |
1 |
0.81% |
| Andre Przywara |
1 |
0.07% |
1 |
0.81% |
| Total |
1441 |
|
124 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __KVM_X86_LAPIC_H
#define __KVM_X86_LAPIC_H
#include <kvm/iodev.h>
#include <linux/kvm_host.h>
#include "hyperv.h"
#include "smm.h"
#define KVM_APIC_INIT 0
#define KVM_APIC_SIPI 1
#define APIC_SHORT_MASK 0xc0000
#define APIC_DEST_NOSHORT 0x0
#define APIC_DEST_MASK 0x800
#define APIC_BUS_CYCLE_NS 1
#define APIC_BUS_FREQUENCY (1000000000ULL / APIC_BUS_CYCLE_NS)
#define APIC_BROADCAST 0xFF
#define X2APIC_BROADCAST 0xFFFFFFFFul
enum lapic_mode {
LAPIC_MODE_DISABLED = 0,
LAPIC_MODE_INVALID = X2APIC_ENABLE,
LAPIC_MODE_XAPIC = MSR_IA32_APICBASE_ENABLE,
LAPIC_MODE_X2APIC = MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE,
};
enum lapic_lvt_entry {
LVT_TIMER,
LVT_THERMAL_MONITOR,
LVT_PERFORMANCE_COUNTER,
LVT_LINT0,
LVT_LINT1,
LVT_ERROR,
LVT_CMCI,
KVM_APIC_MAX_NR_LVT_ENTRIES,
};
#define APIC_LVTx(x) ((x) == LVT_CMCI ? APIC_LVTCMCI : APIC_LVTT + 0x10 * (x))
struct kvm_timer {
struct hrtimer timer;
s64 period; /* unit: ns */
ktime_t target_expiration;
u32 timer_mode;
u32 timer_mode_mask;
u64 tscdeadline;
u64 expired_tscdeadline;
u32 timer_advance_ns;
atomic_t pending; /* accumulated triggered timers */
bool hv_timer_in_use;
};
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 apicv_active;
bool sw_enabled;
bool irr_pending;
bool lvt0_in_nmi_mode;
/* Number of bits set in ISR. */
s16 isr_count;
/* The highest vector set in ISR; if -1 - invalid, must scan ISR. */
int highest_isr_cache;
/**
* APIC register page. The layout matches the register layout seen by
* the guest 1:1, because it is accessed by the vmx microcode.
* Note: Only one register, the TPR, is used by the microcode.
*/
void *regs;
gpa_t vapic_addr;
struct gfn_to_hva_cache vapic_cache;
unsigned long pending_events;
unsigned int sipi_vector;
int nr_lvt_entries;
};
struct dest_map;
int kvm_create_lapic(struct kvm_vcpu *vcpu, int timer_advance_ns);
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);
int kvm_apic_accept_events(struct kvm_vcpu *vcpu);
void kvm_lapic_reset(struct kvm_vcpu *vcpu, bool init_event);
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_recalculate_apic_map(struct kvm *kvm);
void kvm_apic_set_version(struct kvm_vcpu *vcpu);
void kvm_apic_after_set_mcg_cap(struct kvm_vcpu *vcpu);
bool kvm_apic_match_dest(struct kvm_vcpu *vcpu, struct kvm_lapic *source,
int shorthand, unsigned int dest, int dest_mode);
int kvm_apic_compare_prio(struct kvm_vcpu *vcpu1, struct kvm_vcpu *vcpu2);
void kvm_apic_clear_irr(struct kvm_vcpu *vcpu, int vec);
bool __kvm_apic_update_irr(u32 *pir, void *regs, int *max_irr);
bool kvm_apic_update_irr(struct kvm_vcpu *vcpu, u32 *pir, int *max_irr);
void kvm_apic_update_ppr(struct kvm_vcpu *vcpu);
int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq,
struct dest_map *dest_map);
int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
void kvm_apic_update_apicv(struct kvm_vcpu *vcpu);
bool kvm_irq_delivery_to_apic_fast(struct kvm *kvm, struct kvm_lapic *src,
struct kvm_lapic_irq *irq, int *r, struct dest_map *dest_map);
void kvm_apic_send_ipi(struct kvm_lapic *apic, u32 icr_low, u32 icr_high);
u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
int kvm_set_apic_base(struct kvm_vcpu *vcpu, struct msr_data *msr_info);
int kvm_apic_get_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s);
enum lapic_mode kvm_get_apic_mode(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_apic_write_nodecode(struct kvm_vcpu *vcpu, u32 offset);
void kvm_apic_set_eoi_accelerated(struct kvm_vcpu *vcpu, int vector);
int 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_icr_write(struct kvm_lapic *apic, u64 data);
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);
int kvm_lapic_set_pv_eoi(struct kvm_vcpu *vcpu, u64 data, unsigned long len);
void kvm_lapic_exit(void);
#define VEC_POS(v) ((v) & (32 - 1))
#define REG_POS(v) (((v) >> 5) << 4)
static inline void kvm_lapic_clear_vector(int vec, void *bitmap)
{
clear_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
}
static inline void kvm_lapic_set_vector(int vec, void *bitmap)
{
set_bit(VEC_POS(vec), (bitmap) + REG_POS(vec));
}
static inline void kvm_lapic_set_irr(int vec, struct kvm_lapic *apic)
{
kvm_lapic_set_vector(vec, apic->regs + APIC_IRR);
/*
* irr_pending must be true if any interrupt is pending; set it after
* APIC_IRR to avoid race with apic_clear_irr
*/
apic->irr_pending = true;
}
static inline u32 __kvm_lapic_get_reg(char *regs, int reg_off)
{
return *((u32 *) (regs + reg_off));
}
static inline u32 kvm_lapic_get_reg(struct kvm_lapic *apic, int reg_off)
{
return __kvm_lapic_get_reg(apic->regs, reg_off);
}
DECLARE_STATIC_KEY_FALSE(kvm_has_noapic_vcpu);
static inline bool lapic_in_kernel(struct kvm_vcpu *vcpu)
{
if (static_branch_unlikely(&kvm_has_noapic_vcpu))
return vcpu->arch.apic;
return true;
}
extern struct static_key_false_deferred apic_hw_disabled;
static inline bool kvm_apic_hw_enabled(struct kvm_lapic *apic)
{
if (static_branch_unlikely(&apic_hw_disabled.key))
return apic->vcpu->arch.apic_base & MSR_IA32_APICBASE_ENABLE;
return true;
}
extern struct static_key_false_deferred apic_sw_disabled;
static inline bool kvm_apic_sw_enabled(struct kvm_lapic *apic)
{
if (static_branch_unlikely(&apic_sw_disabled.key))
return apic->sw_enabled;
return true;
}
static inline bool kvm_apic_present(struct kvm_vcpu *vcpu)
{
return lapic_in_kernel(vcpu) && kvm_apic_hw_enabled(vcpu->arch.apic);
}
static inline int kvm_lapic_enabled(struct kvm_vcpu *vcpu)
{
return kvm_apic_present(vcpu) && kvm_apic_sw_enabled(vcpu->arch.apic);
}
static inline int apic_x2apic_mode(struct kvm_lapic *apic)
{
return apic->vcpu->arch.apic_base & X2APIC_ENABLE;
}
static inline bool kvm_vcpu_apicv_active(struct kvm_vcpu *vcpu)
{
return lapic_in_kernel(vcpu) && vcpu->arch.apic->apicv_active;
}
static inline bool kvm_apic_has_pending_init_or_sipi(struct kvm_vcpu *vcpu)
{
return lapic_in_kernel(vcpu) && vcpu->arch.apic->pending_events;
}
static inline bool kvm_apic_init_sipi_allowed(struct kvm_vcpu *vcpu)
{
return !is_smm(vcpu) &&
!static_call(kvm_x86_apic_init_signal_blocked)(vcpu);
}
static inline bool kvm_lowest_prio_delivery(struct kvm_lapic_irq *irq)
{
return (irq->delivery_mode == APIC_DM_LOWEST ||
irq->msi_redir_hint);
}
static inline int kvm_lapic_latched_init(struct kvm_vcpu *vcpu)
{
return lapic_in_kernel(vcpu) && test_bit(KVM_APIC_INIT, &vcpu->arch.apic->pending_events);
}
bool kvm_apic_pending_eoi(struct kvm_vcpu *vcpu, int vector);
void kvm_wait_lapic_expire(struct kvm_vcpu *vcpu);
void kvm_bitmap_or_dest_vcpus(struct kvm *kvm, struct kvm_lapic_irq *irq,
unsigned long *vcpu_bitmap);
bool kvm_intr_is_single_vcpu_fast(struct kvm *kvm, struct kvm_lapic_irq *irq,
struct kvm_vcpu **dest_vcpu);
int kvm_vector_to_index(u32 vector, u32 dest_vcpus,
const unsigned long *bitmap, u32 bitmap_size);
void kvm_lapic_switch_to_sw_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_switch_to_hv_timer(struct kvm_vcpu *vcpu);
void kvm_lapic_expired_hv_timer(struct kvm_vcpu *vcpu);
bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu);
void kvm_lapic_restart_hv_timer(struct kvm_vcpu *vcpu);
bool kvm_can_use_hv_timer(struct kvm_vcpu *vcpu);
static inline enum lapic_mode kvm_apic_mode(u64 apic_base)
{
return apic_base & (MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
}
static inline u8 kvm_xapic_id(struct kvm_lapic *apic)
{
return kvm_lapic_get_reg(apic, APIC_ID) >> 24;
}
#endif