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Subject[PATCH v2 050/144] KVM: selftests: Convert memslot_perf_test away from VCPU_ID
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Convert memslot_perf_test to use __vm_create_with_one_vcpu() and pass
around a 'struct kvm_vcpu' object instead of using a global VCPU_ID.
This is the first of many, many steps towards eliminating VCPU_ID from
all KVM selftests, and towards eventually purging the VM+vcpu_id mess.

Signed-off-by: Sean Christopherson <seanjc@google.com>
---
.../testing/selftests/kvm/memslot_perf_test.c | 28 +++++++++----------
1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c
index 1727f75e0c2c..009eb19b28af 100644
--- a/tools/testing/selftests/kvm/memslot_perf_test.c
+++ b/tools/testing/selftests/kvm/memslot_perf_test.c
@@ -25,8 +25,6 @@
#include <kvm_util.h>
#include <processor.h>

-#define VCPU_ID 0
-
#define MEM_SIZE ((512U << 20) + 4096)
#define MEM_SIZE_PAGES (MEM_SIZE / 4096)
#define MEM_GPA 0x10000000UL
@@ -90,6 +88,7 @@ static_assert(MEM_TEST_MOVE_SIZE <= MEM_TEST_SIZE,

struct vm_data {
struct kvm_vm *vm;
+ struct kvm_vcpu *vcpu;
pthread_t vcpu_thread;
uint32_t nslots;
uint64_t npages;
@@ -127,29 +126,29 @@ static bool verbose;
pr_info(__VA_ARGS__); \
} while (0)

-static void check_mmio_access(struct vm_data *vm, struct kvm_run *run)
+static void check_mmio_access(struct vm_data *data, struct kvm_run *run)
{
- TEST_ASSERT(vm->mmio_ok, "Unexpected mmio exit");
+ TEST_ASSERT(data->mmio_ok, "Unexpected mmio exit");
TEST_ASSERT(run->mmio.is_write, "Unexpected mmio read");
TEST_ASSERT(run->mmio.len == 8,
"Unexpected exit mmio size = %u", run->mmio.len);
- TEST_ASSERT(run->mmio.phys_addr >= vm->mmio_gpa_min &&
- run->mmio.phys_addr <= vm->mmio_gpa_max,
+ TEST_ASSERT(run->mmio.phys_addr >= data->mmio_gpa_min &&
+ run->mmio.phys_addr <= data->mmio_gpa_max,
"Unexpected exit mmio address = 0x%llx",
run->mmio.phys_addr);
}

-static void *vcpu_worker(void *data)
+static void *vcpu_worker(void *__data)
{
- struct vm_data *vm = data;
- struct kvm_run *run;
+ struct vm_data *data = __data;
+ struct kvm_vcpu *vcpu = data->vcpu;
+ struct kvm_run *run = vcpu->run;
struct ucall uc;

- run = vcpu_state(vm->vm, VCPU_ID);
while (1) {
- vcpu_run(vm->vm, VCPU_ID);
+ vcpu_run(data->vm, vcpu->id);

- switch (get_ucall(vm->vm, VCPU_ID, &uc)) {
+ switch (get_ucall(data->vm, vcpu->id, &uc)) {
case UCALL_SYNC:
TEST_ASSERT(uc.args[1] == 0,
"Unexpected sync ucall, got %lx",
@@ -158,7 +157,7 @@ static void *vcpu_worker(void *data)
continue;
case UCALL_NONE:
if (run->exit_reason == KVM_EXIT_MMIO)
- check_mmio_access(vm, run);
+ check_mmio_access(data, run);
else
goto done;
break;
@@ -238,6 +237,7 @@ static struct vm_data *alloc_vm(void)
TEST_ASSERT(data, "malloc(vmdata) failed");

data->vm = NULL;
+ data->vcpu = NULL;
data->hva_slots = NULL;

return data;
@@ -278,7 +278,7 @@ static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
data->hva_slots = malloc(sizeof(*data->hva_slots) * data->nslots);
TEST_ASSERT(data->hva_slots, "malloc() fail");

- data->vm = vm_create_default(VCPU_ID, mempages, guest_code);
+ data->vm = __vm_create_with_one_vcpu(&data->vcpu, mempages, guest_code);
ucall_init(data->vm, NULL);

pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n",
--
2.36.1.255.ge46751e96f-goog
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