On 2016/1/21 14:02, Wu, Feng wrote:
-----Original Message-----
From: Yang Zhang [mailto:yang.zhang.wz@xxxxxxxxx]
Sent: Thursday, January 21, 2016 1:58 PM
To: Wu, Feng <feng.wu@xxxxxxxxx>; pbonzini@xxxxxxxxxx;
rkrcmar@xxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx; kvm@xxxxxxxxxxxxxxx
Subject: Re: [PATCH v3 2/4] KVM: x86: Use vector-hashing to deliver lowest-
priority interrupts
I remember we have discussed that even the LAPIC is software disabled,
it still can respond to some interrupts like INIT, NMI, SMI, and SIPI
messages. Isn't current logic still problematically?
I don't think there are problems, here we only cover lowest-priority mode.
Does Intel SDM said those interrupts cannot be delivered on
lowest-priority mode?
Fixed, Lowest-priority, SMI, NMI, INIT are all "Delivery Mode", once it is
Lowest-priority, it cannot be other type, afaik.
You are correct, I missed it with physical and logical mode. Also, i
noticed you have the check at the beginning:
+ if (!kvm_lowest_prio_delivery(irq))
+ goto set_irq;
--
best regards
yang
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