KVM: SVM: Remove nsvm_printk debugging code

With all important informations now delivered through
tracepoints we can savely remove the nsvm_printk debugging
code for nested svm.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8b9f6fbba48c2fd7e226d388b4cf5b828de56d2d..69610c5d6dea3f0940296d4eaaa736434d1e3d32 100644 (file)
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -53,15 +53,6 @@ MODULE_LICENSE("GPL");
 
 #define DEBUGCTL_RESERVED_BITS (~(0x3fULL))
 
-/* Turn on to get debugging output*/
-/* #define NESTED_DEBUG */
-
-#ifdef NESTED_DEBUG
-#define nsvm_printk(fmt, args...) printk(KERN_INFO fmt, ## args)
-#else
-#define nsvm_printk(fmt, args...) do {} while(0)
-#endif
-
 static const u32 host_save_user_msrs[] = {
 #ifdef CONFIG_X86_64
        MSR_STAR, MSR_LSTAR, MSR_CSTAR, MSR_SYSCALL_MASK, MSR_KERNEL_GS_BASE,
@@ -1540,14 +1531,12 @@ static int nested_svm_exit_handled(struct vcpu_svm *svm)
        }
        default: {
                u64 exit_bits = 1ULL << (exit_code - SVM_EXIT_INTR);
-               nsvm_printk("exit code: 0x%x\n", exit_code);
                if (svm->nested.intercept & exit_bits)
                        vmexit = NESTED_EXIT_DONE;
        }
        }
 
        if (vmexit == NESTED_EXIT_DONE) {
-               nsvm_printk("#VMEXIT reason=%04x\n", exit_code);
                nested_svm_vmexit(svm);
        }
 
@@ -1658,10 +1647,6 @@ static int nested_svm_vmexit(struct vcpu_svm *svm)
        /* Restore the original control entries */
        copy_vmcb_control_area(vmcb, hsave);
 
-       /* Kill any pending exceptions */
-       if (svm->vcpu.arch.exception.pending == true)
-               nsvm_printk("WARNING: Pending Exception\n");
-
        kvm_clear_exception_queue(&svm->vcpu);
        kvm_clear_interrupt_queue(&svm->vcpu);
 
@@ -1826,25 +1811,14 @@ static bool nested_svm_vmrun(struct vcpu_svm *svm)
 
        force_new_asid(&svm->vcpu);
        svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK;
-       if (nested_vmcb->control.int_ctl & V_IRQ_MASK) {
-               nsvm_printk("nSVM Injecting Interrupt: 0x%x\n",
-                               nested_vmcb->control.int_ctl);
-       }
        if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK)
                svm->vcpu.arch.hflags |= HF_VINTR_MASK;
        else
                svm->vcpu.arch.hflags &= ~HF_VINTR_MASK;
 
-       nsvm_printk("nSVM exit_int_info: 0x%x | int_state: 0x%x\n",
-                       nested_vmcb->control.exit_int_info,
-                       nested_vmcb->control.int_state);
-
        svm->vmcb->control.int_vector = nested_vmcb->control.int_vector;
        svm->vmcb->control.int_state = nested_vmcb->control.int_state;
        svm->vmcb->control.tsc_offset += nested_vmcb->control.tsc_offset;
-       if (nested_vmcb->control.event_inj & SVM_EVTINJ_VALID)
-               nsvm_printk("Injecting Event: 0x%x\n",
-                               nested_vmcb->control.event_inj);
        svm->vmcb->control.event_inj = nested_vmcb->control.event_inj;
        svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err;
 
@@ -1913,8 +1887,6 @@ static int vmsave_interception(struct vcpu_svm *svm)
 
 static int vmrun_interception(struct vcpu_svm *svm)
 {
-       nsvm_printk("VMrun\n");
-
        if (nested_svm_check_permissions(svm))
                return 1;
 
@@ -1974,7 +1946,6 @@ static int clgi_interception(struct vcpu_svm *svm)
 static int invlpga_interception(struct vcpu_svm *svm)
 {
        struct kvm_vcpu *vcpu = &svm->vcpu;
-       nsvm_printk("INVLPGA\n");
 
        trace_kvm_invlpga(svm->vmcb->save.rip, vcpu->arch.regs[VCPU_REGS_RCX],
                          vcpu->arch.regs[VCPU_REGS_RAX]);
@@ -2389,10 +2360,6 @@ static int handle_exit(struct kvm_vcpu *vcpu)
                                        svm->vmcb->control.exit_int_info,
                                        svm->vmcb->control.exit_int_info_err);
 
-               nsvm_printk("nested handle_exit: 0x%x | 0x%lx | 0x%lx | 0x%lx\n",
-                           exit_code, svm->vmcb->control.exit_info_1,
-                           svm->vmcb->control.exit_info_2, svm->vmcb->save.rip);
-
                vmexit = nested_svm_exit_special(svm);
 
                if (vmexit == NESTED_EXIT_CONTINUE)
@@ -2539,7 +2506,6 @@ static int svm_interrupt_allowed(struct kvm_vcpu *vcpu)
 static void enable_irq_window(struct kvm_vcpu *vcpu)
 {
        struct vcpu_svm *svm = to_svm(vcpu);
-       nsvm_printk("Trying to open IRQ window\n");
 
        nested_svm_intr(svm);