Re: [PATCH 56/61] KVM: SVM: Refactor logging of NPT enabled/disabled

From: Vitaly Kuznetsov
Date: Tue Feb 25 2020 - 09:21:54 EST


Sean Christopherson <sean.j.christopherson@xxxxxxxxx> writes:

> Tweak SVM's logging of NPT enabled/disabled to handle the logging in a
> single pr_info() in preparation for merging kvm_enable_tdp() and
> kvm_disable_tdp() into a single function.
>
> No functional change intended.
>
> Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
> ---
> arch/x86/kvm/svm.c | 10 ++++------
> 1 file changed, 4 insertions(+), 6 deletions(-)
>
> diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
> index a27f83f7521c..80962c1eea8f 100644
> --- a/arch/x86/kvm/svm.c
> +++ b/arch/x86/kvm/svm.c
> @@ -1440,16 +1440,14 @@ static __init int svm_hardware_setup(void)
> if (!boot_cpu_has(X86_FEATURE_NPT))
> npt_enabled = false;
>
> - if (npt_enabled && !npt) {
> - printk(KERN_INFO "kvm: Nested Paging disabled\n");
> + if (npt_enabled && !npt)
> npt_enabled = false;
> - }
>
> - if (npt_enabled) {
> - printk(KERN_INFO "kvm: Nested Paging enabled\n");
> + if (npt_enabled)
> kvm_enable_tdp();
> - } else
> + else
> kvm_disable_tdp();
> + pr_info("kvm: Nested Paging %sabled\n", npt_enabled ? "en" : "dis");
>
> if (nrips) {
> if (!boot_cpu_has(X86_FEATURE_NRIPS))

Reviewed-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>

--
Vitaly