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KVM: selftests: Convert vmx_nested_tsc_scaling_test away from VCPU_ID

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Convert vmx_nested_tsc_scaling_test to use vm_create_with_one_vcpu() and
pass around a 'struct kvm_vcpu' object instead of using a global VCPU_ID.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-02-15 16:23:43 -08:00 committed by Paolo Bonzini
parent 1cc1a9f38d
commit 6f96628f82
1 changed files with 8 additions and 10 deletions
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18
tools/testing/selftests/kvm/x86_64/vmx_nested_tsc_scaling_test.c
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@ -15,9 +15,6 @@
#include "vmx.h"
#include "kselftest.h"
#define VCPU_ID 0
/* L2 is scaled up (from L1's perspective) by this factor */
#define L2_SCALE_FACTOR 4ULL
@ -150,6 +147,7 @@ skip_test:
int main(int argc, char *argv[])
{
struct kvm_vcpu *vcpu;
struct kvm_vm *vm;
vm_vaddr_t vmx_pages_gva;
@ -182,28 +180,28 @@ int main(int argc, char *argv[])
l0_tsc_freq = tsc_end - tsc_start;
printf("real TSC frequency is around: %"PRIu64"\n", l0_tsc_freq);
vm = vm_create_default(VCPU_ID, 0, (void *) l1_guest_code);
vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
vcpu_alloc_vmx(vm, &vmx_pages_gva);
vcpu_args_set(vm, VCPU_ID, 1, vmx_pages_gva);
vcpu_args_set(vm, vcpu->id, 1, vmx_pages_gva);
tsc_khz = __vcpu_ioctl(vm, VCPU_ID, KVM_GET_TSC_KHZ, NULL);
tsc_khz = __vcpu_ioctl(vm, vcpu->id, KVM_GET_TSC_KHZ, NULL);
TEST_ASSERT(tsc_khz != -1, "vcpu ioctl KVM_GET_TSC_KHZ failed");
/* scale down L1's TSC frequency */
vcpu_ioctl(vm, VCPU_ID, KVM_SET_TSC_KHZ,
vcpu_ioctl(vm, vcpu->id, KVM_SET_TSC_KHZ,
(void *) (tsc_khz / l1_scale_factor));
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);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Got exit_reason other than KVM_EXIT_IO: %u (%s)\n",
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]);
case UCALL_SYNC: