From 376851f8953a28be237b0a99adef91f422fa8f19 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Wed, 20 Apr 2022 12:15:50 -0700 Subject: KVM: selftests: Stop hardcoding vCPU IDs in vcpu_width_config In preparation for taking a vCPU pointer in vCPU-scoped functions, grab the vCPU(s) created by __vm_vcpu_add() and use the ID from the vCPU object instead of hardcoding the ID in ioctl() invocations. Rename init1/init2 => init0/init1 to avoid having odd/confusing code where vcpu0 consumes init1 and vcpu1 consumes init2. Note, this change could easily be done when the functions are converted in the future, and/or the vcpu{0,1} vs. init{1,2} discrepancy could be ignored, but then there would be no opportunity to poke fun at the 1-based counting scheme. Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- .../selftests/kvm/aarch64/vcpu_width_config.c | 60 +++++++++++----------- 1 file changed, 31 insertions(+), 29 deletions(-) (limited to 'tools/testing/selftests') diff --git a/tools/testing/selftests/kvm/aarch64/vcpu_width_config.c b/tools/testing/selftests/kvm/aarch64/vcpu_width_config.c index 1dd856a58f5d..e4e66632f05c 100644 --- a/tools/testing/selftests/kvm/aarch64/vcpu_width_config.c +++ b/tools/testing/selftests/kvm/aarch64/vcpu_width_config.c @@ -15,24 +15,25 @@ /* - * Add a vCPU, run KVM_ARM_VCPU_INIT with @init1, and then - * add another vCPU, and run KVM_ARM_VCPU_INIT with @init2. + * Add a vCPU, run KVM_ARM_VCPU_INIT with @init0, and then + * add another vCPU, and run KVM_ARM_VCPU_INIT with @init1. */ -static int add_init_2vcpus(struct kvm_vcpu_init *init1, - struct kvm_vcpu_init *init2) +static int add_init_2vcpus(struct kvm_vcpu_init *init0, + struct kvm_vcpu_init *init1) { + struct kvm_vcpu *vcpu0, *vcpu1; struct kvm_vm *vm; int ret; vm = vm_create_barebones(); - __vm_vcpu_add(vm, 0); - ret = __vcpu_ioctl(vm, 0, KVM_ARM_VCPU_INIT, init1); + vcpu0 = __vm_vcpu_add(vm, 0); + ret = __vcpu_ioctl(vm, vcpu0->id, KVM_ARM_VCPU_INIT, init0); if (ret) goto free_exit; - __vm_vcpu_add(vm, 1); - ret = __vcpu_ioctl(vm, 1, KVM_ARM_VCPU_INIT, init2); + vcpu1 = __vm_vcpu_add(vm, 1); + ret = __vcpu_ioctl(vm, vcpu1->id, KVM_ARM_VCPU_INIT, init1); free_exit: kvm_vm_free(vm); @@ -40,25 +41,26 @@ free_exit: } /* - * Add two vCPUs, then run KVM_ARM_VCPU_INIT for one vCPU with @init1, - * and run KVM_ARM_VCPU_INIT for another vCPU with @init2. + * Add two vCPUs, then run KVM_ARM_VCPU_INIT for one vCPU with @init0, + * and run KVM_ARM_VCPU_INIT for another vCPU with @init1. */ -static int add_2vcpus_init_2vcpus(struct kvm_vcpu_init *init1, - struct kvm_vcpu_init *init2) +static int add_2vcpus_init_2vcpus(struct kvm_vcpu_init *init0, + struct kvm_vcpu_init *init1) { + struct kvm_vcpu *vcpu0, *vcpu1; struct kvm_vm *vm; int ret; vm = vm_create_barebones(); - __vm_vcpu_add(vm, 0); - __vm_vcpu_add(vm, 1); + vcpu0 = __vm_vcpu_add(vm, 0); + vcpu1 = __vm_vcpu_add(vm, 1); - ret = __vcpu_ioctl(vm, 0, KVM_ARM_VCPU_INIT, init1); + ret = __vcpu_ioctl(vm, vcpu0->id, KVM_ARM_VCPU_INIT, init0); if (ret) goto free_exit; - ret = __vcpu_ioctl(vm, 1, KVM_ARM_VCPU_INIT, init2); + ret = __vcpu_ioctl(vm, vcpu1->id, KVM_ARM_VCPU_INIT, init1); free_exit: kvm_vm_free(vm); @@ -76,7 +78,7 @@ free_exit: */ int main(void) { - struct kvm_vcpu_init init1, init2; + struct kvm_vcpu_init init0, init1; struct kvm_vm *vm; int ret; @@ -85,36 +87,36 @@ int main(void) exit(KSFT_SKIP); } - /* Get the preferred target type and copy that to init2 for later use */ + /* Get the preferred target type and copy that to init1 for later use */ vm = vm_create_barebones(); - vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init1); + vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init0); kvm_vm_free(vm); - init2 = init1; + init1 = init0; /* Test with 64bit vCPUs */ - ret = add_init_2vcpus(&init1, &init1); + ret = add_init_2vcpus(&init0, &init0); TEST_ASSERT(ret == 0, "Configuring 64bit EL1 vCPUs failed unexpectedly"); - ret = add_2vcpus_init_2vcpus(&init1, &init1); + ret = add_2vcpus_init_2vcpus(&init0, &init0); TEST_ASSERT(ret == 0, "Configuring 64bit EL1 vCPUs failed unexpectedly"); /* Test with 32bit vCPUs */ - init1.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT); - ret = add_init_2vcpus(&init1, &init1); + init0.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT); + ret = add_init_2vcpus(&init0, &init0); TEST_ASSERT(ret == 0, "Configuring 32bit EL1 vCPUs failed unexpectedly"); - ret = add_2vcpus_init_2vcpus(&init1, &init1); + ret = add_2vcpus_init_2vcpus(&init0, &init0); TEST_ASSERT(ret == 0, "Configuring 32bit EL1 vCPUs failed unexpectedly"); /* Test with mixed-width vCPUs */ - init1.features[0] = 0; - init2.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT); - ret = add_init_2vcpus(&init1, &init2); + init0.features[0] = 0; + init1.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT); + ret = add_init_2vcpus(&init0, &init1); TEST_ASSERT(ret != 0, "Configuring mixed-width vCPUs worked unexpectedly"); - ret = add_2vcpus_init_2vcpus(&init1, &init2); + ret = add_2vcpus_init_2vcpus(&init0, &init1); TEST_ASSERT(ret != 0, "Configuring mixed-width vCPUs worked unexpectedly"); -- cgit v1.2.3-59-g8ed1b