[LTP] [PATCH 2/2] kvm: Allow running multiple iterations of a test

[Martin Doucha]

Signed-off-by: Martin Doucha <mdoucha@suse.cz>
---

This fixes running the test with "-i N" for N>1. It's a lazy fix but
the alternative would be saving the initial CPU state in up to 3 separate
buffers and then restoring it after each test run. And the number of buffers
differs on different archs. And ARM64 has an extra ioctl() instead...

I also wonder whether I should implement LTP library function to free
individual guarded buffers because I don't like calling tst_free_all()
directly.

 testcases/kernel/kvm/lib_host.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/testcases/kernel/kvm/lib_host.c b/testcases/kernel/kvm/lib_host.c
index b8994f34e..2782e68b0 100644
--- a/testcases/kernel/kvm/lib_host.c
+++ b/testcases/kernel/kvm/lib_host.c
@@ -269,16 +269,20 @@ void tst_kvm_destroy_instance(struct tst_kvm_instance *inst)
 		SAFE_CLOSE(inst->vcpu_fd);
 
 	SAFE_CLOSE(inst->vm_fd);
+	memset(inst->ram, 0, sizeof(inst->ram));
 }
 
 void tst_kvm_setup(void)
 {
-	tst_kvm_create_instance(&test_vm, DEFAULT_RAM_SIZE);
+
 }
 
 void tst_kvm_run(void)
 {
+	tst_kvm_create_instance(&test_vm, DEFAULT_RAM_SIZE);
 	tst_kvm_run_instance(&test_vm);
+	tst_kvm_destroy_instance(&test_vm);
+	tst_free_all();
 }
 
 void tst_kvm_cleanup(void)
-- 
2.36.0