Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Subject: Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
From: Jim Mattson <jmattson@xxxxxxxxxx>
Date: Tue, 20 Feb 2018 09:19:27 -0800
Cc: KarimAllah Ahmed <karahmed@xxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, kvm list <kvm@xxxxxxxxxxxxxxx>, "the arch/x86 maintainers" <x86@xxxxxxxxxx>
In-reply-to: <1519019082.30560.15.camel@amazon.de>
References: <1518791030-31765-1-git-send-email-karahmed@amazon.de> <1518791030-31765-2-git-send-email-karahmed@amazon.de> <9a9eb15d-94e9-121b-142c-dda331cb8f7f@redhat.com> <ec535f56-5c8c-b7f2-acda-39b1f175223f@amazon.com> <1519019082.30560.15.camel@amazon.de>

On Sun, Feb 18, 2018 at 9:44 PM, KarimAllah Ahmed <karahmed@xxxxxxxxx> wrote:

> Is there any thing else that I am missing?

I haven't looked at your entire patch, but it looks like you are
synthesizing a VM-exit from L2 to L1 for "external interrupt." What if
the “external-interrupt exiting” VM-execution control in vmcs12 is
clear? Then L1 will not be expecting a VM-exit for "external
interrupt."

Follow-Ups:
- Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
  - From: Raslan, KarimAllah

References:
- [RFC 0/2] KVM/nVMX: Add support for saving and restoring L1 hypervisors with its running L2s
  - From: KarimAllah Ahmed
- [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
  - From: KarimAllah Ahmed
- Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
  - From: Paolo Bonzini
- Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
  - From: KarimAllah Ahmed
- Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
  - From: KarimAllah Ahmed

Prev by Date: Re: [PATCH RFC 4/6] KVM: s390: consider epoch index on TOD clock syncs
Next by Date: Re: [PATCH RFC 2/6] KVM: s390: provide only a single function for setting the tod
Previous by thread: Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
Next by thread: Re: [RFC 1/2] KVM/nVMX: Cleanly exit from L2 to L1 on user-space exit
Index(es):
- Date
- Thread

[Index of Archives] [KVM ARM] [KVM ia64] [KVM ppc] [Virtualization Tools] [Spice Development] [Libvirt] [Libvirt Users] [Linux USB Devel] [Linux Audio Users] [Yosemite Questions] [Linux Kernel] [Linux SCSI] [XFree86]