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authorMarkus Armbruster <armbru@redhat.com>2016-03-15 19:34:22 +0100
committerMarkus Armbruster <armbru@redhat.com>2016-03-21 21:28:59 +0100
commit4958fe5d3c77a40a5250bc820b582a29d73605ab (patch)
treee6a61f7b67c79edb9f9d3cfb01c551dc48f78d2e /tests/ivshmem-test.c
parent998261726a6aff3c8a88ae6965e51a6717b467ff (diff)
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ivshmem-test: Improve test case /ivshmem/single
Test state of registers after reset. Test reading Interrupt Status clears it. Test (invalid) read of Doorbell. Add more comments. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <1458066895-20632-8-git-send-email-armbru@redhat.com>
Diffstat (limited to 'tests/ivshmem-test.c')
-rw-r--r--tests/ivshmem-test.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/tests/ivshmem-test.c b/tests/ivshmem-test.c
index da6ca0d..a48dc49 100644
--- a/tests/ivshmem-test.c
+++ b/tests/ivshmem-test.c
@@ -143,32 +143,41 @@ static void test_ivshmem_single(void)
setup_vm(&state);
s = &state;
- /* valid io */
- out_reg(s, INTRMASK, 0);
- in_reg(s, INTRSTATUS);
- in_reg(s, IVPOSITION);
+ /* initial state of readable registers */
+ g_assert_cmpuint(in_reg(s, INTRMASK), ==, 0);
+ g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 0);
+ g_assert_cmpuint(in_reg(s, IVPOSITION), ==, 0);
+ /* trigger interrupt via registers */
out_reg(s, INTRMASK, 0xffffffff);
g_assert_cmpuint(in_reg(s, INTRMASK), ==, 0xffffffff);
out_reg(s, INTRSTATUS, 1);
- /* XXX: intercept IRQ, not seen in resp */
+ /* check interrupt status */
g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 1);
+ /* reading clears */
+ g_assert_cmpuint(in_reg(s, INTRSTATUS), ==, 0);
+ /* TODO intercept actual interrupt (needs qtest work) */
- /* invalid io */
+ /* invalid register access */
out_reg(s, IVPOSITION, 1);
+ in_reg(s, DOORBELL);
+
+ /* ring the (non-functional) doorbell */
out_reg(s, DOORBELL, 8 << 16);
+ /* write shared memory */
for (i = 0; i < G_N_ELEMENTS(data); i++) {
data[i] = i;
}
qtest_memwrite(s->qtest, (uintptr_t)s->mem_base, data, sizeof(data));
+ /* verify write */
for (i = 0; i < G_N_ELEMENTS(data); i++) {
g_assert_cmpuint(((uint32_t *)tmpshmem)[i], ==, i);
}
+ /* read it back and verify read */
memset(data, 0, sizeof(data));
-
qtest_memread(s->qtest, (uintptr_t)s->mem_base, data, sizeof(data));
for (i = 0; i < G_N_ELEMENTS(data); i++) {
g_assert_cmpuint(data[i], ==, i);