Commit 4958fe5d authored by Markus Armbruster's avatar Markus Armbruster
Browse files

ivshmem-test: Improve test case /ivshmem/single 



Test state of registers after reset.

Test reading Interrupt Status clears it.

Test (invalid) read of Doorbell.

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Signed-off-by: default avatarMarkus Armbruster <armbru@redhat.com>
Reviewed-by: default avatarMarc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <1458066895-20632-8-git-send-email-armbru@redhat.com>
parent 99826172

tests/ivshmem-test.c

+16 −7
Original line number Diff line number Diff line
@@ -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);