From: Xiaoyao Li <xiaoyao.li@intel.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Yan Zhao <yan.y.zhao@intel.com>,
Binbin Wu <binbin.wu@linux.intel.com>,
Rick Edgecombe <rick.p.edgecombe@intel.com>
Subject: Re: [PATCH] KVM: VMX: Formally define KVM's "0xdead" exit reason used for failed VM-Enter
Date: Tue, 22 Sep 2026 10:16:46 +0800 [thread overview]
Message-ID: <cd58f445-34ca-4239-b5eb-deea1dc65128@intel.com> (raw)
In-Reply-To: <20260921235656.1107929-1-seanjc@google.com>
On 9/22/2026 7:56 AM, Sean Christopherson wrote:
> Add EXIT_REASON_UNDEFINED to track KVM's magic "0xdead" value that's used
> to stuff the exit reason on a failed VM-Enter so that the magic can be
> reused by TDX, and to make it more obvious that it's an arbitrary, KVM-
> defined value (though the whole "dead" thing makes it pretty darn obvious).
>
> Opportunistically add a compile-time assert to ensure the KVM-defined exit
> reason never collides with a "real" exit reason.
>
> No functional change intended.
>
> Cc: Xiaoyao Li <xiaoyao.li@intel.com>
> Cc: Yan Zhao <yan.y.zhao@intel.com>
> Cc: Binbin Wu <binbin.wu@linux.intel.com>
> Cc: Rick Edgecombe <rick.p.edgecombe@intel.com>
> Cc: stable@vger.kernel.org
> Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
prev parent reply other threads:[~2026-09-22 2:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 23:56 Sean Christopherson
2026-09-22 2:13 ` Binbin Wu
2026-09-22 2:16 ` Xiaoyao Li [this message]
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=cd58f445-34ca-4239-b5eb-deea1dc65128@intel.com \
--to=xiaoyao.li@intel.com \
--cc=binbin.wu@linux.intel.com \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=pbonzini@redhat.com \
--cc=rick.p.edgecombe@intel.com \
--cc=seanjc@google.com \
--cc=yan.y.zhao@intel.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®