KVM: VMX: Drop obsolete branch hint prefixes from inline asm

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Remove explicit branch hint prefixes (.byte 0x2e / 0x3e) from VMX
inline assembly sequences.

These prefixes (CS/DS segment overrides used as branch hints on
very old x86 CPUs) have been ignored by modern processors for a
long time. Keeping them provides no measurable benefit and only
enlarges the generated code.

No functional change intended.

Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Gleixner <tglx@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://patch.msgid.link/20260211102928.100944-1-ubizjak@gmail.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Uros Bizjak 2026-02-11 11:28:49 +01:00 • committed by Sean Christopherson

parent 11439c4635

commit 6dad59124e

1 changed files with 0 additions and 3 deletions

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arch/x86/kvm/vmx/vmx_ops.h

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