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author | Yang Zhang <yang.z.zhang@Intel.com> | 2013-04-18 11:36:28 +0200 |
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committer | Jan Beulich <jbeulich@suse.com> | 2013-04-18 11:36:28 +0200 |
commit | 8d266f6b2c5c3d2d0da42f1e40ba1fb2ac8fdf1a (patch) | |
tree | 514a0f386086d0ef8ba08566c24b22d4fcb69f4e /xen/arch/x86/hvm/vlapic.c | |
parent | 04015d6326f17e4aafb32593b94dac44b72ef4c1 (diff) | |
download | xen-8d266f6b2c5c3d2d0da42f1e40ba1fb2ac8fdf1a.tar.gz xen-8d266f6b2c5c3d2d0da42f1e40ba1fb2ac8fdf1a.tar.bz2 xen-8d266f6b2c5c3d2d0da42f1e40ba1fb2ac8fdf1a.zip |
VMX: Use posted interrupt to deliver virutal interrupt
Deliver virtual interrupt through posted way if posted interrupt
is enabled.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Reviewed-by: Jun Nakajima <jun.nakajima@intel.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com> (from a release perspective)
Diffstat (limited to 'xen/arch/x86/hvm/vlapic.c')
-rw-r--r-- | xen/arch/x86/hvm/vlapic.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/xen/arch/x86/hvm/vlapic.c b/xen/arch/x86/hvm/vlapic.c index 20c8fe3566..9e1db88599 100644 --- a/xen/arch/x86/hvm/vlapic.c +++ b/xen/arch/x86/hvm/vlapic.c @@ -119,6 +119,9 @@ static void vlapic_clear_irr(int vector, struct vlapic *vlapic) static int vlapic_find_highest_irr(struct vlapic *vlapic) { + if ( hvm_funcs.sync_pir_to_irr ) + hvm_funcs.sync_pir_to_irr(vlapic_vcpu(vlapic)); + return vlapic_find_highest_vector(&vlapic->regs->data[APIC_IRR]); } @@ -132,8 +135,9 @@ void vlapic_set_irq(struct vlapic *vlapic, uint8_t vec, uint8_t trig) if ( hvm_funcs.update_eoi_exit_bitmap ) hvm_funcs.update_eoi_exit_bitmap(target, vec, trig); - /* We may need to wake up target vcpu, besides set pending bit here */ - if ( !vlapic_test_and_set_irr(vec, vlapic) ) + if ( hvm_funcs.deliver_posted_intr ) + hvm_funcs.deliver_posted_intr(target, vec); + else if ( !vlapic_test_and_set_irr(vec, vlapic) ) vcpu_kick(target); } |