tree: https://kernel.googlesource.com/pub/scm/virt/kvm/kvm.git queue head: f0b5105af6e0ca781fcc9aaf9277635ea7df2d36 commit: 6f6a657c99980485c265363447b269083dd1dc3a [4/47] KVM/Hyper-V/VMX: Add direct tlb flush support config: i386-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-13) 7.4.0 reproduce: git checkout 6f6a657c99980485c265363447b269083dd1dc3a # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:332:0, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/highmem.h:5, from arch/x86/kvm/vmx/vmx.c:17: arch/x86/kvm/vmx/vmx.c: In function 'hv_enable_direct_tlbflush': >> arch/x86/kvm/vmx/vmx.c:503:10: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (u64)&vcpu->kvm); ^ include/linux/dynamic_debug.h:125:15: note: in definition of macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ include/linux/dynamic_debug.h:153:2: note: in expansion of macro '_dynamic_func_call' _dynamic_func_call(fmt, __dynamic_pr_debug, \ ^~~~~~~~~~~~~~~~~~ include/linux/printk.h:336:2: note: in expansion of macro 'dynamic_pr_debug' dynamic_pr_debug(fmt, ##__VA_ARGS__) ^~~~~~~~~~~~~~~~ >> arch/x86/kvm/vmx/vmx.c:502:3: note: in expansion of macro 'pr_debug' pr_debug("KVM: Hyper-V: allocated PA_PG for %llx\n", ^~~~~~~~ arch/x86/kvm/vmx/vmx.c:510:20: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] evmcs->hv_vm_id = (u64)vcpu->kvm; ^ In file included from include/linux/printk.h:332:0, from include/linux/kernel.h:15, from include/linux/list.h:9, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from include/linux/highmem.h:5, from arch/x86/kvm/vmx/vmx.c:17: arch/x86/kvm/vmx/vmx.c:514:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (u64)vcpu->kvm); ^ include/linux/dynamic_debug.h:125:15: note: in definition of macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ include/linux/dynamic_debug.h:153:2: note: in expansion of macro '_dynamic_func_call' _dynamic_func_call(fmt, __dynamic_pr_debug, \ ^~~~~~~~~~~~~~~~~~ include/linux/printk.h:336:2: note: in expansion of macro 'dynamic_pr_debug' dynamic_pr_debug(fmt, ##__VA_ARGS__) ^~~~~~~~~~~~~~~~ arch/x86/kvm/vmx/vmx.c:513:2: note: in expansion of macro 'pr_debug' pr_debug("KVM: Hyper-V: enabled DIRECT flush for %llx\n", ^~~~~~~~ vim +503 arch/x86/kvm/vmx/vmx.c 488 489 static int hv_enable_direct_tlbflush(struct kvm_vcpu *vcpu) 490 { 491 struct hv_enlightened_vmcs *evmcs; 492 struct hv_partition_assist_pg **p_hv_pa_pg = 493 &vcpu->kvm->arch.hyperv.hv_pa_pg; 494 /* 495 * Synthetic VM-Exit is not enabled in current code and so All 496 * evmcs in singe VM shares same assist page. 497 */ 498 if (!*p_hv_pa_pg) { 499 *p_hv_pa_pg = kzalloc(PAGE_SIZE, GFP_KERNEL); 500 if (!*p_hv_pa_pg) 501 return -ENOMEM; > 502 pr_debug("KVM: Hyper-V: allocated PA_PG for %llx\n", > 503 (u64)&vcpu->kvm); 504 } 505 506 evmcs = (struct hv_enlightened_vmcs *)to_vmx(vcpu)->loaded_vmcs->vmcs; 507 508 evmcs->partition_assist_page = 509 __pa(*p_hv_pa_pg); 510 evmcs->hv_vm_id = (u64)vcpu->kvm; 511 evmcs->hv_enlightenments_control.nested_flush_hypercall = 1; 512 513 pr_debug("KVM: Hyper-V: enabled DIRECT flush for %llx\n", 514 (u64)vcpu->kvm); 515 return 0; 516 } 517 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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