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authorPaolo Bonzini <pbonzini@redhat.com>2019-05-20 12:02:16 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2019-05-24 21:27:05 +0200
commit3b339e2527a6db257fa8f2a4cab3c510432a98d5 (patch)
tree4c4be2152f9e4a925ccea293f2c4715428d79132
parentbe7fcf1d1701a5266dd36eab4978476f63d1bd57 (diff)
downloadlinux-stericsson-3b339e2527a6db257fa8f2a4cab3c510432a98d5.tar.gz
kvm: selftests: avoid type punning
Avoid warnings from -Wstrict-aliasing by using memcpy. Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--tools/testing/selftests/kvm/lib/ucall.c2
-rw-r--r--tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/tools/testing/selftests/kvm/lib/ucall.c b/tools/testing/selftests/kvm/lib/ucall.c
index a2ab38be2f47..b701a01cfcb6 100644
--- a/tools/testing/selftests/kvm/lib/ucall.c
+++ b/tools/testing/selftests/kvm/lib/ucall.c
@@ -142,7 +142,7 @@ uint64_t get_ucall(struct kvm_vm *vm, uint32_t vcpu_id, struct ucall *uc)
vm_vaddr_t gva;
TEST_ASSERT(run->mmio.is_write && run->mmio.len == 8,
"Unexpected ucall exit mmio address access");
- gva = *(vm_vaddr_t *)run->mmio.data;
+ memcpy(&gva, run->mmio.data, sizeof(gva));
memcpy(uc, addr_gva2hva(vm, gva), sizeof(*uc));
}
diff --git a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
index 61a2163cf9f1..9d62e2c7e024 100644
--- a/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
+++ b/tools/testing/selftests/kvm/x86_64/vmx_set_nested_state_test.c
@@ -75,7 +75,7 @@ void set_revision_id_for_vmcs12(struct kvm_nested_state *state,
u32 vmcs12_revision)
{
/* Set revision_id in vmcs12 to vmcs12_revision. */
- *(u32 *)(state->data) = vmcs12_revision;
+ memcpy(state->data, &vmcs12_revision, sizeof(u32));
}
void set_default_state(struct kvm_nested_state *state)