KVM: x86: Move LLDT assembly wrappers into VMX

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Move kvm_{load,read}_ldt() into vmx.c, as vmx_{load,store}_ldt(), as they
are exclusively used by VMX to save/restore host state, and have no
business being globally visible.

Ideally, KVM-specific helpers wouldn't exist at all, as they are nothing
more than assembly wrappers for SLDT and LLDT, i.e. should be provided by
the kernel, not by KVM.  Punt that cleanup to the future, as
arch/x86/include/asm/desc.h _does_ provide helpers, but load_ldt() is only
available for CONFIG_PARAVIRT_XXL=n builds, and both {load,store}_ldt()
unnecessarily constrain the operands to memory.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Message-ID: <20260613000329.732085-22-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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This commit is contained in:

Sean Christopherson 2026-06-12 17:03:20 -07:00 • committed by Paolo Bonzini

parent 77036f577b

commit 781ee15bd9

2 changed files with 15 additions and 15 deletions

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12

arch/x86/include/asm/kvm_host.h

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18

arch/x86/kvm/vmx/vmx.c

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