KVM: x86: Move nested_ops out of kvm_x86_ops, to global kvm_nested_ops

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Rework KVM's handling of per-vendor nested ops to copy the vendor's ops
into a global structure owned by common x86, i.e. treat nested ops just
like x86 and PMU ops.  In addition to providing consistency across all ops
implementations, making a copy of the ops prevents changes to the vendor's
ops after KVM is initialized, i.e. guards against goofs where KVM *thinks*
it is updating nested ops, but which won't take effect now that KVM uses
static calls to invoke vendor hooks.

Ignoring the side effects of tagging {svm,vmx}_nested_ops as __initdata,
no functional change intended.

Link: https://patch.msgid.link/20260630202828.440724-4-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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This commit is contained in:

Sean Christopherson 2026-06-30 13:28:28 -07:00

parent 4b9819a506

commit 2c56780d8e

7 changed files with 20 additions and 21 deletions

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4

arch/x86/include/asm/kvm_host.h

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2

arch/x86/kvm/hyperv.c

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2

arch/x86/kvm/svm/nested.c

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arch/x86/kvm/svm/svm.c

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arch/x86/kvm/vmx/main.c

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arch/x86/kvm/vmx/nested.c

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arch/x86/kvm/x86.c

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