From: Paolo Bonzini <pbonzini@redhat.com>
To: Sean Christopherson <seanjc@google.com>,
Kiryl Shutsemau <kas@kernel.org>
Cc: kvm@vger.kernel.org, x86@kernel.org, linux-coco@lists.linux.dev,
linux-kernel@vger.kernel.org,
"Chang S . Bae" <chang.seok.bae@intel.com>
Subject: Re: [PATCH 2/7] KVM: x86: Drop the "EX" part of "EXREG" to avoid collision with APX
Date: Wed, 11 Mar 2026 19:46:46 +0100 [thread overview]
Message-ID: <b9d6d345-32ac-498d-8da9-bb8cca386413@redhat.com> (raw)
In-Reply-To: <20260311003346.2626238-3-seanjc@google.com>
On 3/11/26 01:33, Sean Christopherson wrote:
> Now that NR_VCPU_REGS is no longer a thing, drop the "EX" is for
> extended (or maybe extra?") prefix from non-GRP registers to avoid a
> collision with APX (Advanced Performance Extensions), which adds:
>
> 16 additional general-purpose registers (GPRs) R16–R31, also referred
> to as Extended GPRs (EGPRs) in this document;
And also, now that RIP is effectively an EXREG.
Paolo
next prev parent reply other threads:[~2026-03-11 18:46 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-11 0:33 [PATCH 0/7] KVM: x86: APX reg prep work Sean Christopherson
2026-03-11 0:33 ` [PATCH 1/7] KVM: x86: Add dedicated storage for guest RIP Sean Christopherson
2026-03-11 0:33 ` [PATCH 2/7] KVM: x86: Drop the "EX" part of "EXREG" to avoid collision with APX Sean Christopherson
2026-03-11 18:46 ` Paolo Bonzini [this message]
2026-03-11 0:33 ` [PATCH 3/7] KVM: nVMX: Do a bitwise-AND of regs_avail when switching active VMCS Sean Christopherson
2026-03-11 0:33 ` [PATCH 4/7] KVM: x86: Add wrapper APIs to reset dirty/available register masks Sean Christopherson
2026-03-11 2:03 ` Yosry Ahmed
2026-03-11 13:31 ` Sean Christopherson
2026-03-11 18:28 ` Yosry Ahmed
2026-03-11 18:50 ` Paolo Bonzini
2026-03-13 0:38 ` Sean Christopherson
2026-03-11 0:33 ` [PATCH 5/7] KVM: x86: Track available/dirty register masks as "unsigned long" values Sean Christopherson
2026-03-11 0:33 ` [PATCH 6/7] KVM: x86: Use a proper bitmap for tracking available/dirty registers Sean Christopherson
2026-03-11 0:33 ` [PATCH 7/7] *** DO NOT MERGE *** KVM: x86: Pretend that APX is supported on 64-bit kernels Sean Christopherson
2026-03-11 19:01 ` [PATCH 0/7] KVM: x86: APX reg prep work Paolo Bonzini
2026-03-12 16:34 ` Chang S. Bae
2026-03-12 17:47 ` Sean Christopherson
2026-03-12 18:11 ` Andrew Cooper
2026-03-12 18:29 ` Sean Christopherson
2026-03-12 18:33 ` Andrew Cooper
2026-03-25 18:28 ` Chang S. Bae
2026-04-02 23:07 ` Sean Christopherson
2026-04-03 0:05 ` Chang S. Bae
2026-04-02 23:19 ` Sean Christopherson
2026-04-03 16:03 ` Paolo Bonzini
2026-04-03 22:05 ` Chang S. Bae
2026-04-04 5:16 ` Paolo Bonzini
2026-04-06 15:28 ` Sean Christopherson
2026-04-06 21:41 ` Paolo Bonzini
2026-04-06 22:00 ` Sean Christopherson
2026-04-07 7:18 ` Paolo Bonzini
2026-04-07 13:20 ` Sean Christopherson
2026-04-03 16:07 ` Dave Hansen
2026-04-06 15:40 ` Sean Christopherson
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=b9d6d345-32ac-498d-8da9-bb8cca386413@redhat.com \
--to=pbonzini@redhat.com \
--cc=chang.seok.bae@intel.com \
--cc=kas@kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=seanjc@google.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
all inboxes | Powered by JetHome®