On Sun, 13. Apr 14:57, Mikhail Lobanov wrote:
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index d5d0c5c3300b..34a002a87c28 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -2231,6 +2231,8 @@ static int shutdown_interception(struct kvm_vcpu *vcpu) */ if (!sev_es_guest(vcpu->kvm)) { clear_page(svm->vmcb);
if (is_smm(vcpu))kvm_smm_changed(vcpu, false);
This won't compile without CONFIG_KVM_SMM=y being set.
arch/x86/kvm/svm/svm.c: In function ‘shutdown_interception’: arch/x86/kvm/svm/svm.c:2235:25: error: implicit declaration of function ‘kvm_smm_changed’ [-Wimplicit-function-declaration] 2235 | kvm_smm_changed(vcpu, false); | ^~~~~~~~~~~~~~~
allmodconfig build which, on the other hand, does have
CONFIG_KVM_AMD=m CONFIG_KVM_SMM=y
also fails with the patch at the current mainline tip.
ERROR: modpost: "kvm_smm_changed" [arch/x86/kvm/kvm-amd.ko] undefined! make[2]: *** [scripts/Makefile.modpost:147: Module.symvers] Error 1 make[1]: *** [/home/kc/ISP/Kernel/linux-stable-allmod/Makefile:1959: modpost] Error 2 make: *** [Makefile:248: __sub-make] Error 2
Looks like the fix in its current form requires some ifdef'erry and EXPORT_SYMBOL***, too?