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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:13:33 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:13:33 -0700 |
| commit | e372dc6c62bf0246a07f3291a26c562cc8659fbd (patch) | |
| tree | c7039c1d1005b80e427761ba768d7697ae4a0b72 /arch/x86/kvm/i8259.c | |
| parent | 5d4121c04b3577e37e389b3553d442f44bb346d7 (diff) | |
| parent | fea7a08acb13524b47711625eebea40a0ede69a0 (diff) | |
Merge 3.6-rc3 into tty-next
This picks up all of the different fixes in Linus's tree that we also need here.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kvm/i8259.c')
| -rw-r--r-- | arch/x86/kvm/i8259.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c index 1df8fb9e1d5..e498b18f010 100644 --- a/arch/x86/kvm/i8259.c +++ b/arch/x86/kvm/i8259.c @@ -316,6 +316,11 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val) addr &= 1; if (addr == 0) { if (val & 0x10) { + u8 edge_irr = s->irr & ~s->elcr; + int i; + bool found; + struct kvm_vcpu *vcpu; + s->init4 = val & 1; s->last_irr = 0; s->irr &= s->elcr; @@ -333,6 +338,18 @@ static void pic_ioport_write(void *opaque, u32 addr, u32 val) if (val & 0x08) pr_pic_unimpl( "level sensitive irq not supported"); + + kvm_for_each_vcpu(i, vcpu, s->pics_state->kvm) + if (kvm_apic_accept_pic_intr(vcpu)) { + found = true; + break; + } + + + if (found) + for (irq = 0; irq < PIC_NUM_PINS/2; irq++) + if (edge_irr & (1 << irq)) + pic_clear_isr(s, irq); } else if (val & 0x08) { if (val & 0x04) s->poll = 1; |