On Wed, 2022-11-02 at 23:18 +0000, Sean Christopherson wrote: > Define pr_fmt using KBUILD_MODNAME for all KVM x86 code so that > printks > use consistent formatting across common x86, Intel, and AMD code. In > addition to providing consistent print formatting, using > KBUILD_MODNAME, > e.g. kvm_amd and kvm_intel, allows referencing SVM and VMX (and SEV > and > SGX and ...) as technologies without generating weird messages, and > without causing naming conflicts with other kernel code, e.g. "SEV: > ", > "tdx: ", "sgx: " etc.. are all used by the kernel for non-KVM > subsystems. > > Opportunistically move away from printk() for prints that need to be > modified anyways, e.g. to drop a manual "kvm: " prefix. > > Opportunistically convert a few SGX WARNs that are similarly modified > to > WARN_ONCE; in the very unlikely event that the WARNs fire, odds are > good > that they would fire repeatedly and spam the kernel log without > providing > unique information in each print. > > Note, defining pr_fmt yields undesirable results for code that uses > KVM's > printk wrappers, e.g. vcpu_unimpl(). But, that's a pre-existing > problem > as SVM/kvm_amd already defines a pr_fmt, and thankfully use of KVM's > wrappers is relatively limited in KVM x86 code. > > Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> > --- > arch/x86/kvm/cpuid.c | 1 + > arch/x86/kvm/debugfs.c | 2 ++ > arch/x86/kvm/emulate.c | 1 + > arch/x86/kvm/hyperv.c | 1 + > arch/x86/kvm/i8254.c | 4 ++-- > arch/x86/kvm/i8259.c | 4 +++- > arch/x86/kvm/ioapic.c | 1 + > arch/x86/kvm/irq.c | 1 + > arch/x86/kvm/irq_comm.c | 7 +++--- > arch/x86/kvm/kvm_onhyperv.c | 1 + > arch/x86/kvm/lapic.c | 8 +++---- > arch/x86/kvm/mmu/mmu.c | 6 ++--- > arch/x86/kvm/mmu/page_track.c | 1 + > arch/x86/kvm/mmu/spte.c | 4 ++-- > arch/x86/kvm/mmu/spte.h | 4 ++-- > arch/x86/kvm/mmu/tdp_iter.c | 1 + > arch/x86/kvm/mmu/tdp_mmu.c | 1 + > arch/x86/kvm/mtrr.c | 1 + > arch/x86/kvm/pmu.c | 1 + > arch/x86/kvm/smm.c | 1 + > arch/x86/kvm/svm/avic.c | 2 +- > arch/x86/kvm/svm/nested.c | 2 +- > arch/x86/kvm/svm/pmu.c | 2 ++ > arch/x86/kvm/svm/sev.c | 1 + > arch/x86/kvm/svm/svm.c | 10 ++++----- > arch/x86/kvm/svm/svm_onhyperv.c | 1 + > arch/x86/kvm/svm/svm_onhyperv.h | 4 ++-- > arch/x86/kvm/vmx/evmcs.c | 1 + > arch/x86/kvm/vmx/evmcs.h | 4 +--- > arch/x86/kvm/vmx/nested.c | 3 ++- > arch/x86/kvm/vmx/pmu_intel.c | 5 +++-- > arch/x86/kvm/vmx/posted_intr.c | 2 ++ > arch/x86/kvm/vmx/sgx.c | 5 +++-- > arch/x86/kvm/vmx/vmcs12.c | 1 + > arch/x86/kvm/vmx/vmx.c | 40 ++++++++++++++++--------------- > -- > arch/x86/kvm/vmx/vmx_ops.h | 4 ++-- > arch/x86/kvm/x86.c | 28 ++++++++++++----------- > arch/x86/kvm/xen.c | 1 + > 38 files changed, 97 insertions(+), 70 deletions(-) > After this patch set, still find some printk()s left in arch/x86/kvm/*, consider clean all of them up? arch/x86/kvm/lapic.c:1215: printk(KERN_ERR "TODO: unsupported delivery mode %x\n", arch/x86/kvm/lapic.c:1506: printk(KERN_ERR "Local APIC read with len = %x, " arch/x86/kvm/lapic.c:2586: printk(KERN_ERR "malloc apic regs error for vcpu %x\n", arch/x86/kvm/ioapic.h:95: printk(KERN_EMERG "assertion failed %s: %d: %s\n", \ arch/x86/kvm/ioapic.c:614: printk(KERN_WARNING "ioapic: wrong length %d\n", len); arch/x86/kvm/ioapic.c:641: printk(KERN_WARNING "ioapic: Unsupported size %d\n", len); arch/x86/kvm/mmu/mmu.c:1652: printk(KERN_ERR "%s: %p %llx\n", __func__, arch/x86/kvm/svm/svm.c:3450: printk(KERN_ERR "%s: unexpected exit_int_info 0x%x " arch/x86/kvm/vmx/posted_intr.c:322: printk( KERN_INFO arch/x86/kvm/vmx/posted_intr.c:343: printk(KERN_INF O "%s: failed to update PI IRTE\n", arch/x86/kvm/vmx/vmx.c:6507: printk(KERN_WARNING "%s: Breaking out of NMI-blocked " arch/x86/kvm/x86.c:13027: printk(KERN_INFO "irq bypass consumer (token %p) unregistration"
