mirror of
https://github.com/adulau/aha.git
synced 2024-12-28 03:36:19 +00:00
KVM: Move main vcpu loop into subarch independent code
This simplifies adding new code as well as reducing overall code size. Signed-off-by: Avi Kivity <avi@qumranet.com>
This commit is contained in:
parent
29bd8a7808
commit
04d2cc7780
4 changed files with 187 additions and 217 deletions
|
@ -453,13 +453,16 @@ struct kvm_x86_ops {
|
|||
/* Create, but do not attach this VCPU */
|
||||
struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
|
||||
void (*vcpu_free)(struct kvm_vcpu *vcpu);
|
||||
void (*vcpu_reset)(struct kvm_vcpu *vcpu);
|
||||
|
||||
void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
|
||||
void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
|
||||
void (*vcpu_put)(struct kvm_vcpu *vcpu);
|
||||
void (*vcpu_decache)(struct kvm_vcpu *vcpu);
|
||||
|
||||
int (*set_guest_debug)(struct kvm_vcpu *vcpu,
|
||||
struct kvm_debug_guest *dbg);
|
||||
void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
|
||||
int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
|
||||
int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
|
||||
u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
|
||||
|
@ -491,12 +494,16 @@ struct kvm_x86_ops {
|
|||
|
||||
void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
|
||||
|
||||
int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
|
||||
void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
|
||||
int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
|
||||
void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
|
||||
void (*patch_hypercall)(struct kvm_vcpu *vcpu,
|
||||
unsigned char *hypercall_addr);
|
||||
int (*get_irq)(struct kvm_vcpu *vcpu);
|
||||
void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
|
||||
void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
|
||||
void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *run);
|
||||
};
|
||||
|
||||
extern struct kvm_x86_ops *kvm_x86_ops;
|
||||
|
|
|
@ -38,6 +38,7 @@
|
|||
#include <linux/cpumask.h>
|
||||
#include <linux/smp.h>
|
||||
#include <linux/anon_inodes.h>
|
||||
#include <linux/profile.h>
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/msr.h>
|
||||
|
@ -1970,6 +1971,127 @@ int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(kvm_emulate_pio_string);
|
||||
|
||||
/*
|
||||
* Check if userspace requested an interrupt window, and that the
|
||||
* interrupt window is open.
|
||||
*
|
||||
* No need to exit to userspace if we already have an interrupt queued.
|
||||
*/
|
||||
static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
return (!vcpu->irq_summary &&
|
||||
kvm_run->request_interrupt_window &&
|
||||
vcpu->interrupt_window_open &&
|
||||
(kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF));
|
||||
}
|
||||
|
||||
static void post_kvm_run_save(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
|
||||
kvm_run->cr8 = get_cr8(vcpu);
|
||||
kvm_run->apic_base = kvm_get_apic_base(vcpu);
|
||||
if (irqchip_in_kernel(vcpu->kvm))
|
||||
kvm_run->ready_for_interrupt_injection = 1;
|
||||
else
|
||||
kvm_run->ready_for_interrupt_injection =
|
||||
(vcpu->interrupt_window_open &&
|
||||
vcpu->irq_summary == 0);
|
||||
}
|
||||
|
||||
static int __vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
{
|
||||
int r;
|
||||
|
||||
if (unlikely(vcpu->mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) {
|
||||
printk("vcpu %d received sipi with vector # %x\n",
|
||||
vcpu->vcpu_id, vcpu->sipi_vector);
|
||||
kvm_lapic_reset(vcpu);
|
||||
kvm_x86_ops->vcpu_reset(vcpu);
|
||||
vcpu->mp_state = VCPU_MP_STATE_RUNNABLE;
|
||||
}
|
||||
|
||||
preempted:
|
||||
if (vcpu->guest_debug.enabled)
|
||||
kvm_x86_ops->guest_debug_pre(vcpu);
|
||||
|
||||
again:
|
||||
r = kvm_mmu_reload(vcpu);
|
||||
if (unlikely(r))
|
||||
goto out;
|
||||
|
||||
preempt_disable();
|
||||
|
||||
kvm_x86_ops->prepare_guest_switch(vcpu);
|
||||
kvm_load_guest_fpu(vcpu);
|
||||
|
||||
local_irq_disable();
|
||||
|
||||
if (signal_pending(current)) {
|
||||
local_irq_enable();
|
||||
preempt_enable();
|
||||
r = -EINTR;
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
++vcpu->stat.signal_exits;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (irqchip_in_kernel(vcpu->kvm))
|
||||
kvm_x86_ops->inject_pending_irq(vcpu);
|
||||
else if (!vcpu->mmio_read_completed)
|
||||
kvm_x86_ops->inject_pending_vectors(vcpu, kvm_run);
|
||||
|
||||
vcpu->guest_mode = 1;
|
||||
|
||||
if (vcpu->requests)
|
||||
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
|
||||
kvm_x86_ops->tlb_flush(vcpu);
|
||||
|
||||
kvm_x86_ops->run(vcpu, kvm_run);
|
||||
|
||||
vcpu->guest_mode = 0;
|
||||
local_irq_enable();
|
||||
|
||||
++vcpu->stat.exits;
|
||||
|
||||
preempt_enable();
|
||||
|
||||
/*
|
||||
* Profile KVM exit RIPs:
|
||||
*/
|
||||
if (unlikely(prof_on == KVM_PROFILING)) {
|
||||
kvm_x86_ops->cache_regs(vcpu);
|
||||
profile_hit(KVM_PROFILING, (void *)vcpu->rip);
|
||||
}
|
||||
|
||||
r = kvm_x86_ops->handle_exit(kvm_run, vcpu);
|
||||
|
||||
if (r > 0) {
|
||||
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
|
||||
r = -EINTR;
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
++vcpu->stat.request_irq_exits;
|
||||
goto out;
|
||||
}
|
||||
if (!need_resched()) {
|
||||
++vcpu->stat.light_exits;
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
if (r > 0) {
|
||||
kvm_resched(vcpu);
|
||||
goto preempted;
|
||||
}
|
||||
|
||||
post_kvm_run_save(vcpu, kvm_run);
|
||||
|
||||
return r;
|
||||
}
|
||||
|
||||
|
||||
static int kvm_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
{
|
||||
int r;
|
||||
|
@ -2017,7 +2139,7 @@ static int kvm_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
|||
kvm_x86_ops->decache_regs(vcpu);
|
||||
}
|
||||
|
||||
r = kvm_x86_ops->run(vcpu, kvm_run);
|
||||
r = __vcpu_run(vcpu, kvm_run);
|
||||
|
||||
out:
|
||||
if (vcpu->sigset_active)
|
||||
|
|
|
@ -22,7 +22,6 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/profile.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include <asm/desc.h>
|
||||
|
@ -50,6 +49,8 @@ MODULE_LICENSE("GPL");
|
|||
#define SVM_FEATURE_LBRV (1 << 1)
|
||||
#define SVM_DEATURE_SVML (1 << 2)
|
||||
|
||||
static void kvm_reput_irq(struct vcpu_svm *svm);
|
||||
|
||||
static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
return container_of(vcpu, struct vcpu_svm, vcpu);
|
||||
|
@ -555,6 +556,13 @@ static void init_vmcb(struct vmcb *vmcb)
|
|||
/* rdx = ?? */
|
||||
}
|
||||
|
||||
static void svm_vcpu_reset(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
|
||||
init_vmcb(svm->vmcb);
|
||||
}
|
||||
|
||||
static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
|
||||
{
|
||||
struct vcpu_svm *svm;
|
||||
|
@ -1252,10 +1260,20 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm,
|
|||
};
|
||||
|
||||
|
||||
static int handle_exit(struct vcpu_svm *svm, struct kvm_run *kvm_run)
|
||||
static int handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
u32 exit_code = svm->vmcb->control.exit_code;
|
||||
|
||||
kvm_reput_irq(svm);
|
||||
|
||||
if (svm->vmcb->control.exit_code == SVM_EXIT_ERR) {
|
||||
kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
|
||||
kvm_run->fail_entry.hardware_entry_failure_reason
|
||||
= svm->vmcb->control.exit_code;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (is_external_interrupt(svm->vmcb->control.exit_int_info) &&
|
||||
exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR)
|
||||
printk(KERN_ERR "%s: unexpected exit_ini_info 0x%x "
|
||||
|
@ -1313,11 +1331,11 @@ static void svm_set_irq(struct kvm_vcpu *vcpu, int irq)
|
|||
svm_inject_irq(svm, irq);
|
||||
}
|
||||
|
||||
static void svm_intr_assist(struct vcpu_svm *svm)
|
||||
static void svm_intr_assist(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
struct vmcb *vmcb = svm->vmcb;
|
||||
int intr_vector = -1;
|
||||
struct kvm_vcpu *vcpu = &svm->vcpu;
|
||||
|
||||
kvm_inject_pending_timer_irqs(vcpu);
|
||||
if ((vmcb->control.exit_int_info & SVM_EVTINJ_VALID) &&
|
||||
|
@ -1376,9 +1394,10 @@ static void svm_do_inject_vector(struct vcpu_svm *svm)
|
|||
svm_inject_irq(svm, irq);
|
||||
}
|
||||
|
||||
static void do_interrupt_requests(struct vcpu_svm *svm,
|
||||
static void do_interrupt_requests(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
struct vmcb_control_area *control = &svm->vmcb->control;
|
||||
|
||||
svm->vcpu.interrupt_window_open =
|
||||
|
@ -1401,35 +1420,6 @@ static void do_interrupt_requests(struct vcpu_svm *svm,
|
|||
control->intercept &= ~(1ULL << INTERCEPT_VINTR);
|
||||
}
|
||||
|
||||
static void post_kvm_run_save(struct vcpu_svm *svm,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
if (irqchip_in_kernel(svm->vcpu.kvm))
|
||||
kvm_run->ready_for_interrupt_injection = 1;
|
||||
else
|
||||
kvm_run->ready_for_interrupt_injection =
|
||||
(svm->vcpu.interrupt_window_open &&
|
||||
svm->vcpu.irq_summary == 0);
|
||||
kvm_run->if_flag = (svm->vmcb->save.rflags & X86_EFLAGS_IF) != 0;
|
||||
kvm_run->cr8 = get_cr8(&svm->vcpu);
|
||||
kvm_run->apic_base = kvm_get_apic_base(&svm->vcpu);
|
||||
}
|
||||
|
||||
/*
|
||||
* Check if userspace requested an interrupt window, and that the
|
||||
* interrupt window is open.
|
||||
*
|
||||
* No need to exit to userspace if we already have an interrupt queued.
|
||||
*/
|
||||
static int dm_request_for_irq_injection(struct vcpu_svm *svm,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
return (!svm->vcpu.irq_summary &&
|
||||
kvm_run->request_interrupt_window &&
|
||||
svm->vcpu.interrupt_window_open &&
|
||||
(svm->vmcb->save.rflags & X86_EFLAGS_IF));
|
||||
}
|
||||
|
||||
static void save_db_regs(unsigned long *db_regs)
|
||||
{
|
||||
asm volatile ("mov %%dr0, %0" : "=r"(db_regs[0]));
|
||||
|
@ -1451,38 +1441,16 @@ static void svm_flush_tlb(struct kvm_vcpu *vcpu)
|
|||
force_new_asid(vcpu);
|
||||
}
|
||||
|
||||
static int svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
static void svm_prepare_guest_switch(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
}
|
||||
|
||||
static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
{
|
||||
struct vcpu_svm *svm = to_svm(vcpu);
|
||||
u16 fs_selector;
|
||||
u16 gs_selector;
|
||||
u16 ldt_selector;
|
||||
int r;
|
||||
|
||||
again:
|
||||
r = kvm_mmu_reload(vcpu);
|
||||
if (unlikely(r))
|
||||
return r;
|
||||
|
||||
clgi();
|
||||
|
||||
if (signal_pending(current)) {
|
||||
stgi();
|
||||
++vcpu->stat.signal_exits;
|
||||
post_kvm_run_save(svm, kvm_run);
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
return -EINTR;
|
||||
}
|
||||
|
||||
if (irqchip_in_kernel(vcpu->kvm))
|
||||
svm_intr_assist(svm);
|
||||
else if (!vcpu->mmio_read_completed)
|
||||
do_interrupt_requests(svm, kvm_run);
|
||||
|
||||
vcpu->guest_mode = 1;
|
||||
if (vcpu->requests)
|
||||
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
|
||||
svm_flush_tlb(vcpu);
|
||||
|
||||
pre_svm_run(svm);
|
||||
|
||||
|
@ -1501,10 +1469,9 @@ again:
|
|||
load_db_regs(svm->db_regs);
|
||||
}
|
||||
|
||||
if (vcpu->fpu_active) {
|
||||
fx_save(&vcpu->host_fx_image);
|
||||
fx_restore(&vcpu->guest_fx_image);
|
||||
}
|
||||
clgi();
|
||||
|
||||
local_irq_enable();
|
||||
|
||||
asm volatile (
|
||||
#ifdef CONFIG_X86_64
|
||||
|
@ -1612,12 +1579,9 @@ again:
|
|||
#endif
|
||||
: "cc", "memory" );
|
||||
|
||||
vcpu->guest_mode = 0;
|
||||
local_irq_disable();
|
||||
|
||||
if (vcpu->fpu_active) {
|
||||
fx_save(&vcpu->guest_fx_image);
|
||||
fx_restore(&vcpu->host_fx_image);
|
||||
}
|
||||
stgi();
|
||||
|
||||
if ((svm->vmcb->save.dr7 & 0xff))
|
||||
load_db_regs(svm->host_db_regs);
|
||||
|
@ -1635,40 +1599,7 @@ again:
|
|||
|
||||
reload_tss(vcpu);
|
||||
|
||||
/*
|
||||
* Profile KVM exit RIPs:
|
||||
*/
|
||||
if (unlikely(prof_on == KVM_PROFILING))
|
||||
profile_hit(KVM_PROFILING,
|
||||
(void *)(unsigned long)svm->vmcb->save.rip);
|
||||
|
||||
stgi();
|
||||
|
||||
kvm_reput_irq(svm);
|
||||
|
||||
svm->next_rip = 0;
|
||||
|
||||
if (svm->vmcb->control.exit_code == SVM_EXIT_ERR) {
|
||||
kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
|
||||
kvm_run->fail_entry.hardware_entry_failure_reason
|
||||
= svm->vmcb->control.exit_code;
|
||||
post_kvm_run_save(svm, kvm_run);
|
||||
return 0;
|
||||
}
|
||||
|
||||
r = handle_exit(svm, kvm_run);
|
||||
if (r > 0) {
|
||||
if (dm_request_for_irq_injection(svm, kvm_run)) {
|
||||
++vcpu->stat.request_irq_exits;
|
||||
post_kvm_run_save(svm, kvm_run);
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
return -EINTR;
|
||||
}
|
||||
kvm_resched(vcpu);
|
||||
goto again;
|
||||
}
|
||||
post_kvm_run_save(svm, kvm_run);
|
||||
return r;
|
||||
}
|
||||
|
||||
static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root)
|
||||
|
@ -1752,7 +1683,9 @@ static struct kvm_x86_ops svm_x86_ops = {
|
|||
|
||||
.vcpu_create = svm_create_vcpu,
|
||||
.vcpu_free = svm_free_vcpu,
|
||||
.vcpu_reset = svm_vcpu_reset,
|
||||
|
||||
.prepare_guest_switch = svm_prepare_guest_switch,
|
||||
.vcpu_load = svm_vcpu_load,
|
||||
.vcpu_put = svm_vcpu_put,
|
||||
.vcpu_decache = svm_vcpu_decache,
|
||||
|
@ -1786,10 +1719,13 @@ static struct kvm_x86_ops svm_x86_ops = {
|
|||
.inject_gp = svm_inject_gp,
|
||||
|
||||
.run = svm_vcpu_run,
|
||||
.handle_exit = handle_exit,
|
||||
.skip_emulated_instruction = skip_emulated_instruction,
|
||||
.patch_hypercall = svm_patch_hypercall,
|
||||
.get_irq = svm_get_irq,
|
||||
.set_irq = svm_set_irq,
|
||||
.inject_pending_irq = svm_intr_assist,
|
||||
.inject_pending_vectors = do_interrupt_requests,
|
||||
};
|
||||
|
||||
static int __init svm_init(void)
|
||||
|
|
|
@ -25,7 +25,6 @@
|
|||
#include <linux/kernel.h>
|
||||
#include <linux/mm.h>
|
||||
#include <linux/highmem.h>
|
||||
#include <linux/profile.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include <asm/io.h>
|
||||
|
@ -355,8 +354,10 @@ static void load_transition_efer(struct vcpu_vmx *vmx)
|
|||
vmx->vcpu.stat.efer_reload++;
|
||||
}
|
||||
|
||||
static void vmx_save_host_state(struct vcpu_vmx *vmx)
|
||||
static void vmx_save_host_state(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_vmx *vmx = to_vmx(vcpu);
|
||||
|
||||
if (vmx->host_state.loaded)
|
||||
return;
|
||||
|
||||
|
@ -1598,6 +1599,13 @@ out:
|
|||
return ret;
|
||||
}
|
||||
|
||||
static void vmx_vcpu_reset(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
struct vcpu_vmx *vmx = to_vmx(vcpu);
|
||||
|
||||
vmx_vcpu_setup(vmx);
|
||||
}
|
||||
|
||||
static void inject_rmode_irq(struct kvm_vcpu *vcpu, int irq)
|
||||
{
|
||||
u16 ent[2];
|
||||
|
@ -2019,20 +2027,6 @@ static int handle_tpr_below_threshold(struct kvm_vcpu *vcpu,
|
|||
return 1;
|
||||
}
|
||||
|
||||
static void post_kvm_run_save(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
kvm_run->if_flag = (vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF) != 0;
|
||||
kvm_run->cr8 = get_cr8(vcpu);
|
||||
kvm_run->apic_base = kvm_get_apic_base(vcpu);
|
||||
if (irqchip_in_kernel(vcpu->kvm))
|
||||
kvm_run->ready_for_interrupt_injection = 1;
|
||||
else
|
||||
kvm_run->ready_for_interrupt_injection =
|
||||
(vcpu->interrupt_window_open &&
|
||||
vcpu->irq_summary == 0);
|
||||
}
|
||||
|
||||
static int handle_interrupt_window(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
|
@ -2123,21 +2117,6 @@ static int kvm_handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
|
|||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Check if userspace requested an interrupt window, and that the
|
||||
* interrupt window is open.
|
||||
*
|
||||
* No need to exit to userspace if we already have an interrupt queued.
|
||||
*/
|
||||
static int dm_request_for_irq_injection(struct kvm_vcpu *vcpu,
|
||||
struct kvm_run *kvm_run)
|
||||
{
|
||||
return (!vcpu->irq_summary &&
|
||||
kvm_run->request_interrupt_window &&
|
||||
vcpu->interrupt_window_open &&
|
||||
(vmcs_readl(GUEST_RFLAGS) & X86_EFLAGS_IF));
|
||||
}
|
||||
|
||||
static void vmx_flush_tlb(struct kvm_vcpu *vcpu)
|
||||
{
|
||||
}
|
||||
|
@ -2214,59 +2193,15 @@ static void vmx_intr_assist(struct kvm_vcpu *vcpu)
|
|||
enable_irq_window(vcpu);
|
||||
}
|
||||
|
||||
static int vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
static void vmx_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
|
||||
{
|
||||
struct vcpu_vmx *vmx = to_vmx(vcpu);
|
||||
int r;
|
||||
|
||||
if (unlikely(vcpu->mp_state == VCPU_MP_STATE_SIPI_RECEIVED)) {
|
||||
printk("vcpu %d received sipi with vector # %x\n",
|
||||
vcpu->vcpu_id, vcpu->sipi_vector);
|
||||
kvm_lapic_reset(vcpu);
|
||||
vmx_vcpu_setup(vmx);
|
||||
vcpu->mp_state = VCPU_MP_STATE_RUNNABLE;
|
||||
}
|
||||
|
||||
preempted:
|
||||
if (vcpu->guest_debug.enabled)
|
||||
kvm_guest_debug_pre(vcpu);
|
||||
|
||||
again:
|
||||
r = kvm_mmu_reload(vcpu);
|
||||
if (unlikely(r))
|
||||
goto out;
|
||||
|
||||
preempt_disable();
|
||||
|
||||
vmx_save_host_state(vmx);
|
||||
kvm_load_guest_fpu(vcpu);
|
||||
|
||||
/*
|
||||
* Loading guest fpu may have cleared host cr0.ts
|
||||
*/
|
||||
vmcs_writel(HOST_CR0, read_cr0());
|
||||
|
||||
local_irq_disable();
|
||||
|
||||
if (signal_pending(current)) {
|
||||
local_irq_enable();
|
||||
preempt_enable();
|
||||
r = -EINTR;
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
++vcpu->stat.signal_exits;
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (irqchip_in_kernel(vcpu->kvm))
|
||||
vmx_intr_assist(vcpu);
|
||||
else if (!vcpu->mmio_read_completed)
|
||||
do_interrupt_requests(vcpu, kvm_run);
|
||||
|
||||
vcpu->guest_mode = 1;
|
||||
if (vcpu->requests)
|
||||
if (test_and_clear_bit(KVM_TLB_FLUSH, &vcpu->requests))
|
||||
vmx_flush_tlb(vcpu);
|
||||
|
||||
asm (
|
||||
/* Store host registers */
|
||||
#ifdef CONFIG_X86_64
|
||||
|
@ -2383,46 +2318,10 @@ again:
|
|||
[cr2]"i"(offsetof(struct kvm_vcpu, cr2))
|
||||
: "cc", "memory" );
|
||||
|
||||
vcpu->guest_mode = 0;
|
||||
local_irq_enable();
|
||||
|
||||
++vcpu->stat.exits;
|
||||
|
||||
vcpu->interrupt_window_open = (vmcs_read32(GUEST_INTERRUPTIBILITY_INFO) & 3) == 0;
|
||||
|
||||
asm ("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS));
|
||||
vmx->launched = 1;
|
||||
|
||||
preempt_enable();
|
||||
|
||||
/*
|
||||
* Profile KVM exit RIPs:
|
||||
*/
|
||||
if (unlikely(prof_on == KVM_PROFILING))
|
||||
profile_hit(KVM_PROFILING, (void *)vmcs_readl(GUEST_RIP));
|
||||
|
||||
r = kvm_handle_exit(kvm_run, vcpu);
|
||||
if (r > 0) {
|
||||
if (dm_request_for_irq_injection(vcpu, kvm_run)) {
|
||||
r = -EINTR;
|
||||
kvm_run->exit_reason = KVM_EXIT_INTR;
|
||||
++vcpu->stat.request_irq_exits;
|
||||
goto out;
|
||||
}
|
||||
if (!need_resched()) {
|
||||
++vcpu->stat.light_exits;
|
||||
goto again;
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
if (r > 0) {
|
||||
kvm_resched(vcpu);
|
||||
goto preempted;
|
||||
}
|
||||
|
||||
post_kvm_run_save(vcpu, kvm_run);
|
||||
return r;
|
||||
}
|
||||
|
||||
static void vmx_inject_page_fault(struct kvm_vcpu *vcpu,
|
||||
|
@ -2560,12 +2459,15 @@ static struct kvm_x86_ops vmx_x86_ops = {
|
|||
|
||||
.vcpu_create = vmx_create_vcpu,
|
||||
.vcpu_free = vmx_free_vcpu,
|
||||
.vcpu_reset = vmx_vcpu_reset,
|
||||
|
||||
.prepare_guest_switch = vmx_save_host_state,
|
||||
.vcpu_load = vmx_vcpu_load,
|
||||
.vcpu_put = vmx_vcpu_put,
|
||||
.vcpu_decache = vmx_vcpu_decache,
|
||||
|
||||
.set_guest_debug = set_guest_debug,
|
||||
.guest_debug_pre = kvm_guest_debug_pre,
|
||||
.get_msr = vmx_get_msr,
|
||||
.set_msr = vmx_set_msr,
|
||||
.get_segment_base = vmx_get_segment_base,
|
||||
|
@ -2594,10 +2496,13 @@ static struct kvm_x86_ops vmx_x86_ops = {
|
|||
.inject_gp = vmx_inject_gp,
|
||||
|
||||
.run = vmx_vcpu_run,
|
||||
.handle_exit = kvm_handle_exit,
|
||||
.skip_emulated_instruction = skip_emulated_instruction,
|
||||
.patch_hypercall = vmx_patch_hypercall,
|
||||
.get_irq = vmx_get_irq,
|
||||
.set_irq = vmx_inject_irq,
|
||||
.inject_pending_irq = vmx_intr_assist,
|
||||
.inject_pending_vectors = do_interrupt_requests,
|
||||
};
|
||||
|
||||
static int __init vmx_init(void)
|
||||
|
|
Loading…
Reference in a new issue