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KVM: selftests: Drop @num_percpu_pages from __vm_create_with_vcpus()

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Drop @num_percpu_pages from __vm_create_with_vcpus(), all callers pass
'0' and there's unlikely to be a test that allocates just enough memory
that it needs a per-CPU allocation, but not so much that it won't just do
its own memory management.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2022-05-02 17:39:47 -07:00 committed by Paolo Bonzini
parent 3222d0264f
commit acaf50ad6d
4 changed files with 7 additions and 8 deletions
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4
tools/testing/selftests/kvm/include/kvm_util_base.h
View File

@ -562,14 +562,14 @@ static inline struct kvm_vm *vm_create(uint64_t nr_pages)
}
struct kvm_vm *__vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus,
uint64_t extra_mem_pages, uint32_t num_percpu_pages,
uint64_t extra_mem_pages,
void *guest_code, struct kvm_vcpu *vcpus[]);
static inline struct kvm_vm *vm_create_with_vcpus(uint32_t nr_vcpus,
void *guest_code,
struct kvm_vcpu *vcpus[])
{
return __vm_create_with_vcpus(VM_MODE_DEFAULT, nr_vcpus, 0, 0,
return __vm_create_with_vcpus(VM_MODE_DEFAULT, nr_vcpus, 0,
guest_code, vcpus);
}

2
tools/testing/selftests/kvm/kvm_page_table_test.c
View File

@ -254,7 +254,7 @@ static struct kvm_vm *pre_init_before_test(enum vm_guest_mode mode, void *arg)
/* Create a VM with enough guest pages */
guest_num_pages = test_mem_size / guest_page_size;
vm = __vm_create_with_vcpus(mode, nr_vcpus, guest_num_pages, 0,
vm = __vm_create_with_vcpus(mode, nr_vcpus, guest_num_pages,
guest_code, test_args.vcpus);
/* Align down GPA of the testing memslot */

7
tools/testing/selftests/kvm/lib/kvm_util.c
View File

@ -281,7 +281,6 @@ struct kvm_vm *__vm_create(enum vm_guest_mode mode, uint64_t nr_pages)
* mode - VM Mode (e.g. VM_MODE_P52V48_4K)
* nr_vcpus - VCPU count
* extra_mem_pages - Non-slot0 physical memory total size
* num_percpu_pages - Per-cpu physical memory pages
* guest_code - Guest entry point
* vcpuids - VCPU IDs
*
@ -295,7 +294,7 @@ struct kvm_vm *__vm_create(enum vm_guest_mode mode, uint64_t nr_pages)
* no real memory allocation for non-slot0 memory in this function.
*/
struct kvm_vm *__vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus,
uint64_t extra_mem_pages, uint32_t num_percpu_pages,
uint64_t extra_mem_pages,
void *guest_code, struct kvm_vcpu *vcpus[])
{
uint64_t vcpu_pages, extra_pg_pages, pages;
@ -310,7 +309,7 @@ struct kvm_vm *__vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus
* N pages) will be: N/x+N/x^2+N/x^3+... which is definitely smaller
* than N/x*2.
*/
vcpu_pages = (DEFAULT_STACK_PGS + num_percpu_pages) * nr_vcpus;
vcpu_pages = nr_vcpus * DEFAULT_STACK_PGS;
extra_pg_pages = (DEFAULT_GUEST_PHY_PAGES + extra_mem_pages + vcpu_pages) / PTES_PER_MIN_PAGE * 2;
pages = DEFAULT_GUEST_PHY_PAGES + vcpu_pages + extra_pg_pages;
@ -333,7 +332,7 @@ struct kvm_vm *__vm_create_with_one_vcpu(struct kvm_vcpu **vcpu,
struct kvm_vcpu *vcpus[1];
struct kvm_vm *vm;
vm = __vm_create_with_vcpus(VM_MODE_DEFAULT, 1, extra_mem_pages, 0,
vm = __vm_create_with_vcpus(VM_MODE_DEFAULT, 1, extra_mem_pages,
guest_code, vcpus);
*vcpu = vcpus[0];

2
tools/testing/selftests/kvm/lib/perf_test_util.c
View File

@ -152,7 +152,7 @@ struct kvm_vm *perf_test_create_vm(enum vm_guest_mode mode, int nr_vcpus,
* The memory is also added to memslot 0, but that's a benign side
* effect as KVM allows aliasing HVAs in meslots.
*/
vm = __vm_create_with_vcpus(mode, nr_vcpus, slot0_pages + guest_num_pages, 0,
vm = __vm_create_with_vcpus(mode, nr_vcpus, slot0_pages + guest_num_pages,
perf_test_guest_code, vcpus);
pta->vm = vm;