So far the KVM selftests are compiled without any compiler warnings
enabled. That's quite bad, since we miss a lot of possible bugs this
way. Let's enable at least "-Wall" and some other useful warning flags
now.
Signed-off-by: Thomas Huth
---
This patch fixes most of the warnings in the x86 code already - but
for some warnings, I was not quite sure (e.g. about the need for the
kvm_get_supported_cpuid_entry(1) in some tests), so I did not touch
that code yet. I also did not check aarch64 yet. I'd be glad if
someone who knows these parts of the code could have a look at the
warnings there.
tools/testing/selftests/kvm/Makefile| 4 +++-
tools/testing/selftests/kvm/dirty_log_test.c| 6 +-
tools/testing/selftests/kvm/lib/kvm_util.c | 3 ---
tools/testing/selftests/kvm/lib/x86_64/processor.c | 4 +---
tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c| 1 +
tools/testing/selftests/kvm/x86_64/platform_info_test.c | 1 -
tools/testing/selftests/kvm/x86_64/smm_test.c | 3 +--
.../selftests/kvm/x86_64/vmx_close_while_nested_test.c | 5 +
tools/testing/selftests/kvm/x86_64/vmx_tsc_adjust_test.c| 5 ++---
9 files changed, 14 insertions(+), 18 deletions(-)
diff --git a/tools/testing/selftests/kvm/Makefile
b/tools/testing/selftests/kvm/Makefile
index f8588cca2bef..93f344bb96af 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -32,7 +32,9 @@ LIBKVM += $(LIBKVM_$(UNAME_M))
INSTALL_HDR_PATH = $(top_srcdir)/usr
LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
-CFLAGS += -O2 -g -std=gnu99 -fno-stack-protector -fno-PIE
-I$(LINUX_TOOL_INCLUDE) -I$(LINUX_HDR_PATH) -Iinclude -I$(page_size;
@@ -1302,7 +1300,6 @@ void vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
struct kvm_sregs *sregs)
int _vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_sregs
*sregs)
{
struct vcpu *vcpu = vcpu_find(vm, vcpuid);
- int ret;
TEST_ASSERT(vcpu != NULL, "vcpu not found, vcpuid: %u", vcpuid);
diff --git a/tools/testing/selftests/kvm/lib/x86_64/processor.c
b/tools/testing/selftests/kvm/lib/x86_64/processor.c
index dc7fae9fa424..21f3040d90cb 100644
--- a/tools/testing/selftests/kvm/lib/x86_64/processor.c
+++ b/tools/testing/selftests/kvm/lib/x86_64/processor.c
@@ -229,8 +229,6 @@ void sregs_dump(FILE *stream, struct kvm_sregs *sregs,
void virt_pgd_alloc(struct kvm_vm *vm, uint32_t pgd_memslot)
{
- int rc;
-
TEST_ASSERT(vm->mode == VM_MODE_P52V48_4K, "Attempt to use "
"unknown or unsupported guest mode, mode: 0x%x", vm->mode);
@@ -549,7 +547,6 @@ vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
struct pageDirectoryPointerEntry *pdpe;
struct pageDirectoryEntry *pde;
struct pageTableEntry *pte;
- void *hva;
TEST_ASSERT(vm->mode == VM_MODE_P52V48_4K, "Attempt to use "
"unknown or unsupported guest mode, mode: 0x%x", vm->mode);
@@ -582,6 +579,7 @@ vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
unmapped_gva:
TEST_ASSERT(false, "No mapping for vm virtual address, "
"gva: 0x%lx", gva);
+ exit(EXIT_FAILURE);
}
static void kvm_setup_gdt(struct kvm_vm *vm, struct kvm_dtable *dt, int
gdt_memslot,
diff --git a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c
b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c
index 7c2c4d4055a8..63cc9c3f5ab6 100644
--- a/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c
+++ b/tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c
@@ -87,6 +87,7 @@ int main(int argc, char *argv[])
while (1) {
rc = _vcpu_run(vm, VCPU_ID);
+ TEST_ASSERT(rc == 0, "vcpu_run failed: %d\n", rc);
TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
"Unexpected exit reason: %u (%s),\n",
run->exit_reason,
diff --git a/tools/testing/selftests/kvm/x86_64/platform_info_test.c
b/tools/testing/selftests/kvm/x86_64/platform_info_test.c
index eb3e7a838cb4..40050e44ec0a 100644
--- a/tools/testing/selftests/kvm/x86_64/platform_info_test.c
+++ b/tools/testing/selftests/kvm/x86_64/platform_info_test.c
@@ -81,7 +81,6 @@ static void test_msr_platform_info_disabled(struct kvm_vm *vm)
int main(int argc, char *argv[])
{
struct kvm_vm *vm;
- struct kvm_run *state;
int rv;
uint64_t msr_platform_info;
diff --git a/tools/testing/selftests/kvm/x86_64/smm_test.c
b/tools/testing/selftests/kvm/x86_64/smm_test.c
index fb8086964d83..4daf520bada1 100644
--- a/tools/testing/selftests/kvm/x86_64/smm_test.c
+++ b/tools/testing/selftests/kvm/x86_64/smm_test.c
@@ -87,7 +87,6 @@ void guest_code(struct vmx_pages *vmx_pages)
int main(int argc, char *argv[])
{
- struct vmx_pages *vmx_pages = NULL;
