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| author | Paolo Bonzini <pbonzini@redhat.com> | 2022-09-29 19:20:14 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-11-09 18:31:19 +0100 |
| commit | 31e83e21cf00fe5b669eb352ff3ed70e74b40fad (patch) | |
| tree | 32e3b3a6364ed65869853abd8315e723d538bbf5 /arch/x86/kvm/vmx/vmx.c | |
| parent | KVM: allow compiling out SMM support (diff) | |
| download | linux-31e83e21cf00fe5b669eb352ff3ed70e74b40fad.tar.xz linux-31e83e21cf00fe5b669eb352ff3ed70e74b40fad.zip | |
KVM: x86: compile out vendor-specific code if SMM is disabled
Vendor-specific code that deals with SMI injection and saving/restoring
SMM state is not needed if CONFIG_KVM_SMM is disabled, so remove the
four callbacks smi_allowed, enter_smm, leave_smm and enable_smi_window.
The users in svm/nested.c and x86.c also have to be compiled out; the
amount of #ifdef'ed code is small and it's not worth moving it to
smm.c.
enter_smm is now used only within #ifdef CONFIG_KVM_SMM, and the stub
can therefore be removed.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20220929172016.319443-7-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/vmx/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 6a0b65815206..6be991b29bb7 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -7932,6 +7932,7 @@ static void vmx_setup_mce(struct kvm_vcpu *vcpu) ~FEAT_CTL_LMCE_ENABLED; } +#ifdef CONFIG_KVM_SMM static int vmx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection) { /* we need a nested vmexit to enter SMM, postpone if run is pending */ @@ -7986,6 +7987,7 @@ static void vmx_enable_smi_window(struct kvm_vcpu *vcpu) { /* RSM will cause a vmexit anyway. */ } +#endif static bool vmx_apic_init_signal_blocked(struct kvm_vcpu *vcpu) { @@ -8153,10 +8155,12 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = { .setup_mce = vmx_setup_mce, +#ifdef CONFIG_KVM_SMM .smi_allowed = vmx_smi_allowed, .enter_smm = vmx_enter_smm, .leave_smm = vmx_leave_smm, .enable_smi_window = vmx_enable_smi_window, +#endif .can_emulate_instruction = vmx_can_emulate_instruction, .apic_init_signal_blocked = vmx_apic_init_signal_blocked, |