On 5/17/22 11:03, Janosch Frank wrote:
On 5/17/22 10:29, Steffen Eiden wrote:
Hey Janosch,
On 5/13/22 11:50, Janosch Frank wrote:
Let's check if we get a specification PGM exception if we set a
non-zero i3 when doing a UV call.
Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
---
s390x/uv-host.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/s390x/uv-host.c b/s390x/uv-host.c
index f846fc42..fcb82d24 100644
--- a/s390x/uv-host.c
+++ b/s390x/uv-host.c
@@ -64,6 +64,28 @@ static struct cmd_list cmds[] = {
{ NULL, 0, 0 },
};
+static void test_i3(void)
+{
+ struct uv_cb_header uvcb = {
+ .cmd = UVC_CMD_INIT_UV,
+ .len = sizeof(struct uv_cb_init),
+ };
+ unsigned long r1 = 0;
Did you forgot 'r2' or is it missing for a reason?
The uvcb is the r2, have a look at the clobbers below
Oh right, my bad; Sorry.
+ int cc;
+
+ report_prefix_push("i3");
+ expect_pgm_int();
+ asm volatile(
+ "0: .insn rrf,0xB9A40000,%[r1],%[r2],4,2\n"
+ " ipm %[cc]\n"
+ " srl %[cc],28\n"
+ : [cc] "=d" (cc)
+ : [r1] "a" (r1), [r2] "a" (&uvcb)
+ : "memory", "cc");
+ check_pgm_int_code(PGM_INT_CODE_SPECIFICATION);
+ report_prefix_pop();
+}
+
static void test_priv(void)
{
struct uv_cb_header uvcb = {};
@@ -585,6 +607,7 @@ int main(void)
goto done;
}
+ test_i3();
test_priv();
test_invalid();
test_uv_uninitialized();
--
Reviewed-by: Steffen Eiden <seiden@xxxxxxxxxxxxx>
