Kernel KVM virtualization development
 help / color / mirror / Atom feed
From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: chang.seok.bae@intel.com
Subject: [PATCH 0/3] KVM: Macrofy GPR swapping in assembly code
Date: Wed, 13 May 2026 13:49:45 -0400	[thread overview]
Message-ID: <20260513174948.726812-1-pbonzini@redhat.com> (raw)

A small change to Chang's patches from the APX series.
The only change is keeping __VCPU_REGS_* constants to avoid
relying on the ordering of constants in kvm_host.h.

While the kvm_vcpu_regs.h changes make the line count boom a bit,
the actual assembly code loses almost a hundred lines and
APX makes that even more extreme.

Paolo

Chang S. Bae (3):
  KVM: VMX: Macrofy GPR swapping in __vmx_vcpu_run()
  KVM: SVM: Macrofy GPR swapping in __svm_vcpu_run()
  KVM: SEV: Macrofy GPR swapping in __svm_sev_es_vcpu_run()

 arch/x86/include/asm/kvm_host.h      |  16 ++--
 arch/x86/include/asm/kvm_vcpu_regs.h | 127 +++++++++++++++++++++++++--
 arch/x86/kvm/svm/vmenter.S           | 107 +++++-----------------
 arch/x86/kvm/vmenter.h               |  43 +++++++++
 arch/x86/kvm/vmx/vmenter.S           |  89 +++++--------------
 5 files changed, 211 insertions(+), 171 deletions(-)

-- 
2.52.0


             reply	other threads:[~2026-05-13 17:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-13 17:49 Paolo Bonzini [this message]
2026-05-13 17:49 ` [PATCH 1/3] KVM: VMX: Macrofy GPR swapping in __vmx_vcpu_run() Paolo Bonzini
2026-05-14 19:30   ` Sean Christopherson
2026-05-13 17:49 ` [PATCH 2/3] KVM: SVM: Macrofy GPR swapping in __svm_vcpu_run() Paolo Bonzini
2026-05-13 17:49 ` [PATCH 3/3] KVM: SEV: Macrofy GPR swapping in __svm_sev_es_vcpu_run() Paolo Bonzini

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=20260513174948.726812-1-pbonzini@redhat.com \
    --to=pbonzini@redhat.com \
    --cc=chang.seok.bae@intel.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.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