Re: [PATCH] KVM: VMX: Fix SPEC_CTRL handling

[Sean Christopherson]

On Wed, 20 Aug 2025 11:59:54 +0200, Uros Bizjak wrote:
> SPEC_CTRL is an MSR, i.e. a 64-bit value, but the assembly code
> assumes bits 63:32 are always zero. The bug is _currently_ benign
> because neither KVM nor the kernel support setting any of bits 63:32,
> but it's still a bug that needs to be fixed

Applied to kvm-x86 vmx, with a slightly tweaked shortlog+changelog to call out
that only the guest's value is affected (whereas on SVM both guest and host
values are affected).  Thanks!

[1/1] KVM: VMX: Ensure guest's SPEC_CTRL[63:32] is loaded on VM-Enter
      https://github.com/kvm-x86/linux/commit/32ed0bc2f0f8

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