From: Vitaly Kuznetsov <vkuznets@redhat.com>
To: "Paolo Bonzini" <pbonzini@redhat.com>,
"Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org,
Peter Xu <peterx@redhat.com>,
kvm@vger.kernel.org
Subject: Re: [PATCH] KVM: lapic: stop advertising DIRECTED_EOI when in-kernel IOAPIC is in use
Date: Mon, 05 Mar 2018 11:29:46 +0100 [thread overview]
Message-ID: <87r2oyzug5.fsf@vitty.brq.redhat.com> (raw)
In-Reply-To: <20180209130133.28387-1-vkuznets@redhat.com> (Vitaly Kuznetsov's message of "Fri, 9 Feb 2018 14:01:33 +0100")
Vitaly Kuznetsov <vkuznets@redhat.com> writes:
> Devices which use level-triggered interrupts under Windows 2016 with
> Hyper-V role enabled don't work: Windows disables EOI broadcast in SPIV
> unconditionally. Our in-kernel IOAPIC implementation emulates an old IOAPIC
> version which has no EOI register so EOI never happens.
>
> The issue was discovered and discussed a while ago:
> https://www.spinics.net/lists/kvm/msg148098.html
>
Radim, Paolo,
do we have a consensus here? (I wouldn't mind re-writing commit message
in case you think we shouldn't blame Windows, I just want to have the
annoying bug fixed :-)
--
Vitaly
next prev parent reply other threads:[~2018-03-05 10:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-09 13:01 Vitaly Kuznetsov
2018-02-09 15:20 ` Nikita Leshenko
2018-02-09 16:32 ` Vitaly Kuznetsov
2018-02-11 5:25 ` Peter Xu
2018-02-12 11:30 ` Vitaly Kuznetsov
2018-02-12 11:31 ` Paolo Bonzini
2018-03-05 10:29 ` Vitaly Kuznetsov [this message]
2018-03-07 13:53 ` Radim Krčmář
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87r2oyzug5.fsf@vitty.brq.redhat.com \
--to=vkuznets@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=peterx@redhat.com \
--cc=rkrcmar@redhat.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome