From: Sean Christopherson <sean.j.christopherson@intel.com>
To: Vivek Goyal <vgoyal@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
virtio-fs-list <virtio-fs@redhat.com>,
pbonzini@redhat.com
Subject: Re: [PATCH v4] kvm,x86: Exit to user space in case page fault error
Date: Tue, 6 Oct 2020 17:04:24 -0700 [thread overview]
Message-ID: <20201007000424.GD28981@linux.intel.com> (raw)
In-Reply-To: <20201006173527.GG5306@redhat.com>
On Tue, Oct 06, 2020 at 01:35:27PM -0400, Vivek Goyal wrote:
> On Tue, Oct 06, 2020 at 10:17:04AM -0700, Sean Christopherson wrote:
>
> [..]
> > > > Note, TDX doesn't allow injection exceptions, so reflecting a #PF back
> > > > into the guest is not an option.
> > >
> > > Not even #MC? So sad :-)
> >
> > Heh, #MC isn't allowed either, yet...
>
> If #MC is not allowd, logic related to hwpoison memory will not work
> as that seems to inject #MC.
Yep. Piggybacking #MC is undesirable for other reasons, e.g. adds a "hardware"
dependency for what is really a paravirt feature.
prev parent reply other threads:[~2020-10-07 0:04 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-20 21:13 [PATCH v4] kvm,x86: Exit to user space in case page fault error Vivek Goyal
2020-07-27 13:56 ` Vivek Goyal
2020-07-27 16:09 ` Vitaly Kuznetsov
2020-07-27 18:40 ` Vivek Goyal
2020-07-30 5:01 ` Pankaj Gupta
2020-08-07 17:51 ` Vivek Goyal
2020-09-29 4:37 ` Sean Christopherson
2020-10-01 21:55 ` Vivek Goyal
2020-10-01 22:33 ` Sean Christopherson
2020-10-02 15:38 ` Vivek Goyal
2020-10-02 18:30 ` Sean Christopherson
2020-10-02 19:27 ` Vivek Goyal
2020-10-02 19:45 ` Sean Christopherson
2020-10-02 20:02 ` Vivek Goyal
2020-10-02 21:13 ` Sean Christopherson
2020-10-05 15:33 ` Vivek Goyal
2020-10-05 16:16 ` Sean Christopherson
2020-10-06 13:46 ` Vivek Goyal
2020-10-06 14:05 ` Vitaly Kuznetsov
2020-10-06 14:15 ` Vivek Goyal
2020-10-06 14:50 ` Vitaly Kuznetsov
2020-10-06 15:08 ` Vivek Goyal
2020-10-06 15:24 ` Vitaly Kuznetsov
2020-10-06 16:12 ` Sean Christopherson
2020-10-06 16:24 ` Vivek Goyal
2020-10-06 16:39 ` Vitaly Kuznetsov
2020-10-06 17:17 ` Sean Christopherson
2020-10-06 17:21 ` [Virtio-fs] [PATCH v4] kvm, x86: " Dr. David Alan Gilbert
2020-10-06 17:28 ` Vivek Goyal
2020-10-06 17:35 ` [PATCH v4] kvm,x86: " Vivek Goyal
2020-10-07 0:04 ` Sean Christopherson [this message]
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