Re: [PATCH v4 3/4] KVM: x86: make interrupt delivery fast and slow path behave the same

From: David Hildenbrand
Date: Mon Dec 19 2016 - 09:57:59 EST


Am 16.12.2016 um 18:07 schrieb Radim KrÄmÃÅ:
2016-12-16 17:53+0100, Paolo Bonzini:
On 16/12/2016 17:41, David Hildenbrand wrote:

Just to verify:

The GET_APIC_DEST_FIELD(mda) == APIC_BROADCAST is still correct in
kvm_apic_broadcast() ?

No, it seems wrong.

Definitely, sending v4 of this patch.
I'll also add broadcast address check into kvm-unit-tests ...
---8<---
Slow path tried to prevent IPIs from x2APIC VCPUs from being delivered
to xAPIC VCPUs and vice-versa. Make slow path behave like fast path,
which never distinguished that.

Signed-off-by: Radim KrÄmÃÅ <rkrcmar@xxxxxxxxxx>
---
v4: fix xAPIC broadcast address detection [David]
---
arch/x86/kvm/lapic.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)


Looks good to me.

Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>

--

David