#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/highmem.h>
-#include <linux/profile.h>
#include <linux/sched.h>
#include <asm/io.h>
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;
static void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags)
{
+ if (vcpu->rmode.active)
+ rflags |= IOPL_MASK | X86_EFLAGS_VM;
vmcs_writel(GUEST_RFLAGS, rflags);
}
fix_rmode_seg(VCPU_SREG_GS, &vcpu->rmode.gs);
fix_rmode_seg(VCPU_SREG_FS, &vcpu->rmode.fs);
+ kvm_mmu_reset_context(vcpu);
init_rmode_tss(vcpu->kvm);
}
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];
set_bit(irq / BITS_PER_LONG, &vcpu->irq_summary);
}
- if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) { /* nmi */
- asm ("int $2");
- return 1;
- }
+ if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
+ return 1; /* already handled by vmx_vcpu_run() */
if (is_no_device(intr_info)) {
vmx_fpu_activate(vcpu);
++vcpu->stat.mmio_exits;
return 0;
case EMULATE_FAIL:
- vcpu_printf(vcpu, "%s: emulate fail\n", __FUNCTION__);
+ kvm_report_emulation_failure(vcpu, "pagetable");
break;
default:
BUG();
static int handle_io(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{
- u64 exit_qualification;
+ unsigned long exit_qualification;
int size, down, in, string, rep;
unsigned port;
++vcpu->stat.io_exits;
- exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
+ exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
string = (exit_qualification & 16) != 0;
if (string) {
static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{
- u64 exit_qualification;
+ unsigned long exit_qualification;
int cr;
int reg;
- exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
+ exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
cr = exit_qualification & 15;
reg = (exit_qualification >> 8) & 15;
switch ((exit_qualification >> 4) & 3) {
static int handle_dr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
{
- u64 exit_qualification;
+ unsigned long exit_qualification;
unsigned long val;
int dr, reg;
* FIXME: this code assumes the host is debugging the guest.
* need to deal with guest debugging itself too.
*/
- exit_qualification = vmcs_read64(EXIT_QUALIFICATION);
+ exit_qualification = vmcs_readl(EXIT_QUALIFICATION);
dr = exit_qualification & 7;
reg = (exit_qualification >> 8) & 15;
vcpu_load_rsp_rip(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)
{
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)
{
}
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);
+ u32 intr_info;
/*
* 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
[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;
- }
+ intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
- post_kvm_run_save(vcpu, kvm_run);
- return r;
+ /* We need to handle NMIs before interrupts are enabled */
+ if ((intr_info & INTR_INFO_INTR_TYPE_MASK) == 0x200) /* nmi */
+ asm("int $2");
}
static void vmx_inject_page_fault(struct kvm_vcpu *vcpu,
.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,
.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)
projects / linux-2.6 / blobdiff