From: Ani Sinha <anisi...@redhat.com> error_report() is more appropriate for error situations. Replace fprintf with error_report() and error_printf() as appropriate. Some improvement in error reporting also happens as a part of this change. For example:
From: $ ./qemu-system-x86_64 --accel kvm Could not access KVM kernel module: No such file or directory To: $ ./qemu-system-x86_64 --accel kvm qemu-system-x86_64: --accel kvm: Could not access KVM kernel module: No such file or directory CC: qemu-triv...@nongnu.org CC: zhao1....@intel.com CC: arm...@redhat.com Reviewed-by: Zhao Liu <zhao1....@intel.com> Reviewed-by: Markus Armbruster <arm...@redhat.com> Signed-off-by: Ani Sinha <anisi...@redhat.com> Link: https://lore.kernel.org/r/20240828124539.62672-1-anisi...@redhat.com Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- accel/kvm/kvm-all.c | 40 ++++++++++++++++++---------------------- 1 file changed, 18 insertions(+), 22 deletions(-) diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c index fe4cd721d9b..4c920b7bfe7 100644 --- a/accel/kvm/kvm-all.c +++ b/accel/kvm/kvm-all.c @@ -2423,7 +2423,7 @@ static int kvm_init(MachineState *ms) QLIST_INIT(&s->kvm_parked_vcpus); s->fd = qemu_open_old(s->device ?: "/dev/kvm", O_RDWR); if (s->fd == -1) { - fprintf(stderr, "Could not access KVM kernel module: %m\n"); + error_report("Could not access KVM kernel module: %m"); ret = -errno; goto err; } @@ -2433,13 +2433,13 @@ static int kvm_init(MachineState *ms) if (ret >= 0) { ret = -EINVAL; } - fprintf(stderr, "kvm version too old\n"); + error_report("kvm version too old"); goto err; } if (ret > KVM_API_VERSION) { ret = -EINVAL; - fprintf(stderr, "kvm version not supported\n"); + error_report("kvm version not supported"); goto err; } @@ -2484,26 +2484,22 @@ static int kvm_init(MachineState *ms) } while (ret == -EINTR); if (ret < 0) { - fprintf(stderr, "ioctl(KVM_CREATE_VM) failed: %d %s\n", -ret, - strerror(-ret)); + error_report("ioctl(KVM_CREATE_VM) failed: %s", strerror(-ret)); #ifdef TARGET_S390X if (ret == -EINVAL) { - fprintf(stderr, - "Host kernel setup problem detected. Please verify:\n"); - fprintf(stderr, "- for kernels supporting the switch_amode or" - " user_mode parameters, whether\n"); - fprintf(stderr, - " user space is running in primary address space\n"); - fprintf(stderr, - "- for kernels supporting the vm.allocate_pgste sysctl, " - "whether it is enabled\n"); + error_printf("Host kernel setup problem detected." + " Please verify:\n"); + error_printf("- for kernels supporting the" + " switch_amode or user_mode parameters, whether"); + error_printf(" user space is running in primary address space\n"); + error_printf("- for kernels supporting the vm.allocate_pgste" + " sysctl, whether it is enabled\n"); } #elif defined(TARGET_PPC) if (ret == -EINVAL) { - fprintf(stderr, - "PPC KVM module is not loaded. Try modprobe kvm_%s.\n", - (type == 2) ? "pr" : "hv"); + error_printf("PPC KVM module is not loaded. Try modprobe kvm_%s.\n", + (type == 2) ? "pr" : "hv"); } #endif goto err; @@ -2522,9 +2518,9 @@ static int kvm_init(MachineState *ms) nc->name, nc->num, soft_vcpus_limit); if (nc->num > hard_vcpus_limit) { - fprintf(stderr, "Number of %s cpus requested (%d) exceeds " - "the maximum cpus supported by KVM (%d)\n", - nc->name, nc->num, hard_vcpus_limit); + error_report("Number of %s cpus requested (%d) exceeds " + "the maximum cpus supported by KVM (%d)", + nc->name, nc->num, hard_vcpus_limit); exit(1); } } @@ -2538,8 +2534,8 @@ static int kvm_init(MachineState *ms) } if (missing_cap) { ret = -EINVAL; - fprintf(stderr, "kvm does not support %s\n%s", - missing_cap->name, upgrade_note); + error_report("kvm does not support %s", missing_cap->name); + error_printf("%s", upgrade_note); goto err; } -- 2.46.1
