Merge branch 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.39' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (55 commits)
  KVM: unbreak userspace that does not sets tss address
  KVM: MMU: cleanup pte write path
  KVM: MMU: introduce a common function to get no-dirty-logged slot
  KVM: fix rcu usage in init_rmode_* functions
  KVM: fix kvmclock regression due to missing clock update
  KVM: emulator: Fix permission checking in io permission bitmap
  KVM: emulator: Fix io permission checking for 64bit guest
  KVM: SVM: Load %gs earlier if CONFIG_X86_32_LAZY_GS=n
  KVM: x86: Remove useless regs_page pointer from kvm_lapic
  KVM: improve comment on rcu use in irqfd_deassign
  KVM: MMU: remove unused macros
  KVM: MMU: cleanup page alloc and free
  KVM: MMU: do not record gfn in kvm_mmu_pte_write
  KVM: MMU: move mmu pages calculated out of mmu lock
  KVM: MMU: set spte accessed bit properly
  KVM: MMU: fix kvm_mmu_slot_remove_write_access dropping intermediate W bits
  KVM: Start lock documentation
  KVM: better readability of efer_reserved_bits
  KVM: Clear async page fault hash after switching to real mode
  KVM: VMX: Initialize vm86 TSS only once.
  ...

1 files changed, 2 insertions, 23 deletions

diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index 3cece05e4ac4..19fe855e7953 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -62,9 +62,6 @@ static void pic_unlock(struct kvm_pic *s)
                 }
 
                 if (!found)
-                        found = s->kvm->bsp_vcpu;
-
-                if (!found)
                         return;
 
                 kvm_make_request(KVM_REQ_EVENT, found);
@@ -75,7 +72,6 @@ static void pic_unlock(struct kvm_pic *s)
 static void pic_clear_isr(struct kvm_kpic_state *s, int irq)
 {
         s->isr &= ~(1 << irq);
-        s->isr_ack |= (1 << irq);
         if (s != &s->pics_state->pics[0])
                 irq += 8;
         /*
@@ -89,16 +85,6 @@ static void pic_clear_isr(struct kvm_kpic_state *s, int irq)
         pic_lock(s->pics_state);
 }
 
-void kvm_pic_clear_isr_ack(struct kvm *kvm)
-{
-        struct kvm_pic *s = pic_irqchip(kvm);
-
-        pic_lock(s);
-        s->pics[0].isr_ack = 0xff;
-        s->pics[1].isr_ack = 0xff;
-        pic_unlock(s);
-}
-
 /*
  * set irq level. If an edge is detected, then the IRR is set to 1
  */
@@ -281,7 +267,6 @@ void kvm_pic_reset(struct kvm_kpic_state *s)
         s->irr = 0;
         s->imr = 0;
         s->isr = 0;
-        s->isr_ack = 0xff;
         s->priority_add = 0;
         s->irq_base = 0;
         s->read_reg_select = 0;
@@ -545,15 +530,11 @@ static int picdev_read(struct kvm_io_device *this,
  */
 static void pic_irq_request(struct kvm *kvm, int level)
 {
-        struct kvm_vcpu *vcpu = kvm->bsp_vcpu;
         struct kvm_pic *s = pic_irqchip(kvm);
-        int irq = pic_get_irq(&s->pics[0]);
 
-        s->output = level;
-        if (vcpu && level && (s->pics[0].isr_ack & (1 << irq))) {
-                s->pics[0].isr_ack &= ~(1 << irq);
+        if (!s->output)
                 s->wakeup_needed = true;
-        }
+        s->output = level;
 }
 
 static const struct kvm_io_device_ops picdev_ops = {
@@ -575,8 +556,6 @@ struct kvm_pic *kvm_create_pic(struct kvm *kvm)
         s->pics[1].elcr_mask = 0xde;
         s->pics[0].pics_state = s;
         s->pics[1].pics_state = s;
-        s->pics[0].isr_ack = 0xff;
-        s->pics[1].isr_ack = 0xff;
 
         /*
          * Initialize PIO device