qemu/tests/pxe-test.c
David Gibson ba3b40de42 Suppress test warnings about missing Spectre/Meltdown mitigations with TCG
The new pseries-4.0 machine type defaults to enabling Spectre/Meltdown
mitigations.  Unfortunately those mitigations aren't implemented for TCG
because we're not yet sure if they're necessary or how to implement them.
We don't fail fatally, but we do warn in this case, because it is quite
plausible that Spectre/Meltdown can be exploited through TCG (at least for
the guest to get access to the qemu address space).

This create noise in our testcases though.  So, modify the affected tests
to explicitly disable the mitigations to suppress these warnings.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-12 16:07:14 +11:00

153 lines
3.7 KiB
C

/*
* PXE test cases.
*
* Copyright (c) 2016, 2017 Red Hat Inc.
*
* Authors:
* Michael S. Tsirkin <mst@redhat.com>,
* Victor Kaplansky <victork@redhat.com>
* Thomas Huth <thuth@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include <glib/gstdio.h>
#include "qemu-common.h"
#include "libqtest.h"
#include "boot-sector.h"
#define NETNAME "net0"
static char disk[] = "tests/pxe-test-disk-XXXXXX";
typedef struct testdef {
const char *machine; /* Machine type */
const char *model; /* NIC device model */
const char *extra; /* Any additional parameters */
} testdef_t;
static testdef_t x86_tests[] = {
{ "pc", "e1000" },
{ "pc", "virtio-net-pci" },
{ "q35", "e1000e" },
{ "q35", "virtio-net-pci", },
{ NULL },
};
static testdef_t x86_tests_slow[] = {
{ "pc", "ne2k_pci", },
{ "pc", "i82550", },
{ "pc", "rtl8139" },
{ "pc", "vmxnet3" },
{ NULL },
};
static testdef_t ppc64_tests[] = {
{ "pseries", "spapr-vlan",
"-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken" },
{ "pseries", "virtio-net-pci",
"-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken" },
{ NULL },
};
static testdef_t ppc64_tests_slow[] = {
{ "pseries", "e1000",
"-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken" },
{ NULL },
};
static testdef_t s390x_tests[] = {
{ "s390-ccw-virtio", "virtio-net-ccw" },
{ NULL },
};
static void test_pxe_one(const testdef_t *test, bool ipv6)
{
QTestState *qts;
char *args;
const char *extra = test->extra;
if (!extra) {
extra = "";
}
args = g_strdup_printf(
"-machine %s,accel=kvm:tcg -nodefaults -boot order=n "
"-netdev user,id=" NETNAME ",tftp=./,bootfile=%s,ipv4=%s,ipv6=%s "
"-device %s,bootindex=1,netdev=" NETNAME " %s",
test->machine, disk, ipv6 ? "off" : "on", ipv6 ? "on" : "off",
test->model, extra);
qts = qtest_init(args);
boot_sector_test(qts);
qtest_quit(qts);
g_free(args);
}
static void test_pxe_ipv4(gconstpointer data)
{
const testdef_t *test = data;
test_pxe_one(test, false);
}
static void test_pxe_ipv6(gconstpointer data)
{
const testdef_t *test = data;
test_pxe_one(test, true);
}
static void test_batch(const testdef_t *tests, bool ipv6)
{
int i;
for (i = 0; tests[i].machine; i++) {
const testdef_t *test = &tests[i];
char *testname;
testname = g_strdup_printf("pxe/ipv4/%s/%s",
test->machine, test->model);
qtest_add_data_func(testname, test, test_pxe_ipv4);
g_free(testname);
if (ipv6) {
testname = g_strdup_printf("pxe/ipv6/%s/%s",
test->machine, test->model);
qtest_add_data_func(testname, test, test_pxe_ipv6);
g_free(testname);
}
}
}
int main(int argc, char *argv[])
{
int ret;
const char *arch = qtest_get_arch();
ret = boot_sector_init(disk);
if(ret)
return ret;
g_test_init(&argc, &argv, NULL);
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
test_batch(x86_tests, false);
if (g_test_slow()) {
test_batch(x86_tests_slow, false);
}
} else if (strcmp(arch, "ppc64") == 0) {
test_batch(ppc64_tests, g_test_slow());
if (g_test_slow()) {
test_batch(ppc64_tests_slow, true);
}
} else if (g_str_equal(arch, "s390x")) {
test_batch(s390x_tests, g_test_slow());
}
ret = g_test_run();
boot_sector_cleanup(disk);
return ret;
}