Hi Dionna, kernel test robot noticed the following build errors: [auto build test ERROR on kvm/queue] [also build test ERROR on kvm/next mst-vhost/linux-next linus/master v6.15-rc6 next-20250515] [cannot apply to kvm/linux-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Dionna-Glaze/kvm-sev-Add-SEV-SNP-guest-request-throttling/20250515-064452 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20250514184136.238446-2-dionnaglaze%40google.com patch subject: [PATCH v4 1/2] kvm: sev: Add SEV-SNP guest request throttling config: x86_64-rhel-9.4 (https://download.01.org/0day-ci/archive/20250516/202505160203.9PdDhrOM-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250516/202505160203.9PdDhrOM-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202505160203.9PdDhrOM-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/x86/kvm/svm/sev.c: In function 'snp_set_request_throttle_ms': arch/x86/kvm/svm/sev.c:2542:13: warning: unused variable 'ret' [-Wunused-variable] 2542 | int ret; | ^~~ arch/x86/kvm/svm/sev.c: In function 'sev_mem_enc_ioctl': >> arch/x86/kvm/svm/sev.c:2666:14: error: 'KVM_SEV_SNP_SET_REQUEST_THROTTLE_RATE_MS' undeclared (first use in this function); did you mean 'KVM_SEV_SNP_SET_REQUEST_THROTTLE_RATE'? 2666 | case KVM_SEV_SNP_SET_REQUEST_THROTTLE_RATE_MS: | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | KVM_SEV_SNP_SET_REQUEST_THROTTLE_RATE arch/x86/kvm/svm/sev.c:2666:14: note: each undeclared identifier is reported only once for each function it appears in arch/x86/kvm/svm/sev.c: In function 'snp_handle_guest_req': >> arch/x86/kvm/svm/sev.c:4039:17: error: 'rc' undeclared (first use in this function); did you mean 'rq'? 4039 | rc = SNP_GUEST_VMM_ERR_BUSY; | ^~ | rq vim +2666 arch/x86/kvm/svm/sev.c 2537 2538 static int snp_set_request_throttle_ms(struct kvm *kvm, struct kvm_sev_cmd *argp) 2539 { 2540 struct kvm_sev_info *sev = to_kvm_sev_info(kvm); 2541 struct kvm_sev_snp_set_request_throttle_rate params; > 2542 int ret; 2543 u64 jiffies; 2544 2545 if (!sev_snp_guest(kvm)) 2546 return -ENOTTY; 2547 2548 if (copy_from_user(¶ms, u64_to_user_ptr(argp->data), sizeof(params))) 2549 return -EFAULT; 2550 2551 jiffies = (params.interval_ms * HZ) / 1000; 2552 2553 if (!jiffies || !params.burst) 2554 return -EINVAL; 2555 2556 ratelimit_state_init(&sev->snp_guest_msg_rs, jiffies, params.burst); 2557 2558 return 0; 2559 } 2560 2561 int sev_mem_enc_ioctl(struct kvm *kvm, void __user *argp) 2562 { 2563 struct kvm_sev_cmd sev_cmd; 2564 int r; 2565 2566 if (!sev_enabled) 2567 return -ENOTTY; 2568 2569 if (!argp) 2570 return 0; 2571 2572 if (copy_from_user(&sev_cmd, argp, sizeof(struct kvm_sev_cmd))) 2573 return -EFAULT; 2574 2575 mutex_lock(&kvm->lock); 2576 2577 /* Only the enc_context_owner handles some memory enc operations. */ 2578 if (is_mirroring_enc_context(kvm) && 2579 !is_cmd_allowed_from_mirror(sev_cmd.id)) { 2580 r = -EINVAL; 2581 goto out; 2582 } 2583 2584 /* 2585 * Once KVM_SEV_INIT2 initializes a KVM instance as an SNP guest, only 2586 * allow the use of SNP-specific commands. 2587 */ 2588 if (sev_snp_guest(kvm) && sev_cmd.id < KVM_SEV_SNP_LAUNCH_START) { 2589 r = -EPERM; 2590 goto out; 2591 } 2592 2593 switch (sev_cmd.id) { 2594 case KVM_SEV_ES_INIT: 2595 if (!sev_es_enabled) { 2596 r = -ENOTTY; 2597 goto out; 2598 } 2599 fallthrough; 2600 case KVM_SEV_INIT: 2601 r = sev_guest_init(kvm, &sev_cmd); 2602 break; 2603 case KVM_SEV_INIT2: 2604 r = sev_guest_init2(kvm, &sev_cmd); 2605 break; 2606 case KVM_SEV_LAUNCH_START: 2607 r = sev_launch_start(kvm, &sev_cmd); 2608 break; 2609 case KVM_SEV_LAUNCH_UPDATE_DATA: 2610 r = sev_launch_update_data(kvm, &sev_cmd); 2611 break; 2612 case KVM_SEV_LAUNCH_UPDATE_VMSA: 2613 r = sev_launch_update_vmsa(kvm, &sev_cmd); 2614 break; 2615 case KVM_SEV_LAUNCH_MEASURE: 2616 r = sev_launch_measure(kvm, &sev_cmd); 2617 break; 2618 case KVM_SEV_LAUNCH_FINISH: 2619 r = sev_launch_finish(kvm, &sev_cmd); 2620 break; 2621 case KVM_SEV_GUEST_STATUS: 2622 r = sev_guest_status(kvm, &sev_cmd); 2623 break; 2624 case KVM_SEV_DBG_DECRYPT: 2625 r = sev_dbg_crypt(kvm, &sev_cmd, true); 2626 break; 2627 case KVM_SEV_DBG_ENCRYPT: 2628 r = sev_dbg_crypt(kvm, &sev_cmd, false); 2629 break; 2630 case KVM_SEV_LAUNCH_SECRET: 2631 r = sev_launch_secret(kvm, &sev_cmd); 2632 break; 2633 case KVM_SEV_GET_ATTESTATION_REPORT: 2634 r = sev_get_attestation_report(kvm, &sev_cmd); 2635 break; 2636 case KVM_SEV_SEND_START: 2637 r = sev_send_start(kvm, &sev_cmd); 2638 break; 2639 case KVM_SEV_SEND_UPDATE_DATA: 2640 r = sev_send_update_data(kvm, &sev_cmd); 2641 break; 2642 case KVM_SEV_SEND_FINISH: 2643 r = sev_send_finish(kvm, &sev_cmd); 2644 break; 2645 case KVM_SEV_SEND_CANCEL: 2646 r = sev_send_cancel(kvm, &sev_cmd); 2647 break; 2648 case KVM_SEV_RECEIVE_START: 2649 r = sev_receive_start(kvm, &sev_cmd); 2650 break; 2651 case KVM_SEV_RECEIVE_UPDATE_DATA: 2652 r = sev_receive_update_data(kvm, &sev_cmd); 2653 break; 2654 case KVM_SEV_RECEIVE_FINISH: 2655 r = sev_receive_finish(kvm, &sev_cmd); 2656 break; 2657 case KVM_SEV_SNP_LAUNCH_START: 2658 r = snp_launch_start(kvm, &sev_cmd); 2659 break; 2660 case KVM_SEV_SNP_LAUNCH_UPDATE: 2661 r = snp_launch_update(kvm, &sev_cmd); 2662 break; 2663 case KVM_SEV_SNP_LAUNCH_FINISH: 2664 r = snp_launch_finish(kvm, &sev_cmd); 2665 break; > 2666 case KVM_SEV_SNP_SET_REQUEST_THROTTLE_RATE_MS: 2667 r = snp_set_request_throttle_ms(kvm, &sev_cmd); 2668 break; 2669 default: 2670 r = -EINVAL; 2671 goto out; 2672 } 2673 2674 if (copy_to_user(argp, &sev_cmd, sizeof(struct kvm_sev_cmd))) 2675 r = -EFAULT; 2676 2677 out: 2678 mutex_unlock(&kvm->lock); 2679 return r; 2680 } 2681 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
