From: Paolo Bonzini <pbonzini@redhat.com>
To: "Radim Krčmář" <rkrcmar@redhat.com>
Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Subject: Re: [PATCH 1/3] KVM: APIC: remove unnecessary double checks on APIC existence
Date: Tue, 9 Feb 2016 16:06:17 +0100 [thread overview]
Message-ID: <56BA0069.30606@redhat.com> (raw)
In-Reply-To: <20160209135502.GA30378@potion.brq.redhat.com>
On 09/02/2016 14:55, Radim Krčmář wrote:
> This is most likely going to bug on the following path:
> handle_apic_access -> kvm_lapic_set_eoi
>
> Before the change, handle_apic_access would just drop EOIs that should
> have gone to user space ... I'm not sure if we tested it, or the path is
> really never taken.
cpu_need_virtualize_apic_accesses is needed to set
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES (vmx_secondary_exec_control) and
SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES is required to get to
handle_apic_access.
Paolo
next prev parent reply other threads:[~2016-02-09 15:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-08 16:15 [PATCH 0/3] KVM: x86: consolidate "has lapic" checks Paolo Bonzini
2016-02-08 16:15 ` [PATCH 1/3] KVM: APIC: remove unnecessary double checks on APIC existence Paolo Bonzini
2016-02-09 13:55 ` Radim Krčmář
2016-02-09 15:06 ` Paolo Bonzini [this message]
2016-02-09 15:18 ` Radim Krčmář
2016-02-08 16:15 ` [PATCH 2/3] KVM: x86: consolidate "has lapic" checks into irq.c Paolo Bonzini
2016-02-09 14:05 ` Radim Krčmář
2016-02-09 15:07 ` Paolo Bonzini
2016-02-09 15:21 ` Radim Krčmář
2016-02-08 16:15 ` [PATCH 3/3] KVM: x86: consolidate different ways to test for in-kernel LAPIC Paolo Bonzini
2016-02-09 14:14 ` 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=56BA0069.30606@redhat.com \
--to=pbonzini@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=rkrcmar@redhat.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.