From: Paolo Bonzini <pbonzini@redhat.com>
To: Wanpeng Li <kernellwp@gmail.com>
Cc: "Charls D. Chap" <chapcharls@gmail.com>, kvm <kvm@vger.kernel.org>
Subject: Re: tlb flush after each vm_exit, also virtual interrupts injection
Date: Mon, 29 Aug 2016 18:39:56 +0200 [thread overview]
Message-ID: <d0ffe31b-5f6c-21f4-fe6a-03e32e6a0118@redhat.com> (raw)
In-Reply-To: <CANRm+CyK9is+Oqg3tqTAnQsUYjpcz=ySjHn1N9J6xg8UDeB6+g@mail.gmail.com>
On 29/08/2016 12:22, Wanpeng Li wrote:
>>> >> patches which will update gsi routing after changed MSI-X
>>> >> configuration(https://patchwork.kernel.org/patch/6827431/)
>>> >> , so why set MSI routing entry again during send MSI?
>> >
>> > KVM_SIGNAL_MSI does not need a previous KVM_SET_GSI_ROUTING, but if
>> > userspace wants it can use both. Note that you've linked a patch for
>> > lkvm, not Linux or QEMU.
> Do you mean that MSI/MSI-X don't necessary have a routing table?
Generally it's not if you don't use irqfd.
Paolo
next prev parent reply other threads:[~2016-08-29 16:40 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-27 10:19 tlb flush after each vm_exit, also virtual interrupts injection charls chap
2016-07-28 8:20 ` Fwd: " Charls D. Chap
2016-08-02 17:33 ` Paolo Bonzini
2016-08-03 14:43 ` Charls D. Chap
2016-08-03 15:56 ` Paolo Bonzini
2016-08-05 11:29 ` Charls D. Chap
2016-08-05 11:59 ` Paolo Bonzini
2016-08-25 9:12 ` Wanpeng Li
2016-08-29 9:55 ` Paolo Bonzini
2016-08-29 10:22 ` Wanpeng Li
2016-08-29 16:39 ` Paolo Bonzini [this message]
2016-08-30 0:39 ` Wanpeng Li
2016-07-28 13:25 ` Radim Krčmář
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