From 92897016697754a2709e42d56117824b0401c7dd Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Tue, 15 Feb 2022 17:33:28 -0800 Subject: [PATCH] KVM: selftests: Convert xen_vmcall_test away from VCPU_ID Convert xen_vmcall_test to use vm_create_with_one_vcpu() and pass around a 'struct kvm_vcpu' object instead of using a global VCPU_ID. Note, this is a "functional" change in the sense that the test now creates a vCPU with vcpu_id==0 instead of vcpu_id==5. The non-zero VCPU_ID was 100% arbitrary and added little to no validation coverage. If testing non-zero vCPU IDs is desirable for generic tests, that can be done in the future by tweaking the VM creation helpers. Opportunistically make the "vm" variable local, it is unused outside of main(). Signed-off-by: Sean Christopherson Signed-off-by: Paolo Bonzini --- tools/testing/selftests/kvm/x86_64/xen_vmcall_test.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/tools/testing/selftests/kvm/x86_64/xen_vmcall_test.c b/tools/testing/selftests/kvm/x86_64/xen_vmcall_test.c index b30fe9d..1411ead 100644 --- a/tools/testing/selftests/kvm/x86_64/xen_vmcall_test.c +++ b/tools/testing/selftests/kvm/x86_64/xen_vmcall_test.c @@ -11,13 +11,9 @@ #include "kvm_util.h" #include "processor.h" -#define VCPU_ID 5 - #define HCALL_REGION_GPA 0xc0000000ULL #define HCALL_REGION_SLOT 10 -static struct kvm_vm *vm; - #define INPUTVALUE 17 #define ARGVALUE(x) (0xdeadbeef5a5a0000UL + x) #define RETVALUE 0xcafef00dfbfbffffUL @@ -84,14 +80,17 @@ static void guest_code(void) int main(int argc, char *argv[]) { + struct kvm_vcpu *vcpu; + struct kvm_vm *vm; + if (!(kvm_check_cap(KVM_CAP_XEN_HVM) & KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL) ) { print_skip("KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL not available"); exit(KSFT_SKIP); } - vm = vm_create_default(VCPU_ID, 0, (void *) guest_code); - vcpu_set_hv_cpuid(vm, VCPU_ID); + vm = vm_create_with_one_vcpu(&vcpu, guest_code); + vcpu_set_hv_cpuid(vm, vcpu->id); struct kvm_xen_hvm_config hvmc = { .flags = KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL, @@ -105,10 +104,10 @@ int main(int argc, char *argv[]) virt_map(vm, HCALL_REGION_GPA, HCALL_REGION_GPA, 2); for (;;) { - volatile struct kvm_run *run = vcpu_state(vm, VCPU_ID); + volatile struct kvm_run *run = vcpu->run; struct ucall uc; - vcpu_run(vm, VCPU_ID); + vcpu_run(vm, vcpu->id); if (run->exit_reason == KVM_EXIT_XEN) { ASSERT_EQ(run->xen.type, KVM_EXIT_XEN_HCALL); @@ -130,7 +129,7 @@ int main(int argc, char *argv[]) run->exit_reason, exit_reason_str(run->exit_reason)); - switch (get_ucall(vm, VCPU_ID, &uc)) { + switch (get_ucall(vm, vcpu->id, &uc)) { case UCALL_ABORT: TEST_FAIL("%s", (const char *)uc.args[0]); /* NOT REACHED */ -- 2.7.4