[PATCH RESEND v7 9/9] tests/qtest: Fix tests when no KVM or TCG are present

[Fabiano Rosas <farosas@suse.de>]

It is possible to have a build with both TCG and KVM disabled due to
Xen requiring the i386 and x86_64 binaries to be present in an aarch64
host.

If we build with --disable-tcg on the aarch64 host, we will end-up
with a QEMU binary (x86) that does not support TCG nor KVM.

Fix tests that crash or hang in the above scenario. Do not include any
test cases if TCG and KVM are missing.

Signed-off-by: Fabiano Rosas <farosas@suse.de>
---
This currently affects Arm, but will also affect x86 after the xenpvh
series gets merged. This patch fixes both scenarios.
---
 tests/qtest/bios-tables-test.c |  4 ++++
 tests/qtest/boot-serial-test.c | 10 ++++++++++
 tests/qtest/migration-test.c   |  5 +++++
 tests/qtest/pxe-test.c         |  6 ++++++
 tests/qtest/vmgenid-test.c     |  6 ++++++
 5 files changed, 31 insertions(+)

diff --git a/tests/qtest/bios-tables-test.c b/tests/qtest/bios-tables-test.c
index d29a4e47af..f6c2a010d2 100644
--- a/tests/qtest/bios-tables-test.c
+++ b/tests/qtest/bios-tables-test.c
@@ -2114,6 +2114,10 @@ int main(int argc, char *argv[])
     char *v_env = getenv("V");
     int ret;
 
+    if (!has_tcg && !has_kvm) {
+        return 0;
+    }
+
     if (v_env) {
         verbosity_level = atoi(v_env);
     }
diff --git a/tests/qtest/boot-serial-test.c b/tests/qtest/boot-serial-test.c
index 3aef3a97a9..45490f5931 100644
--- a/tests/qtest/boot-serial-test.c
+++ b/tests/qtest/boot-serial-test.c
@@ -17,6 +17,9 @@
 #include "libqtest.h"
 #include "libqos/libqos-spapr.h"
 
+static bool has_tcg;
+static bool has_kvm;
+
 static const uint8_t bios_avr[] = {
     0x88, 0xe0,             /* ldi r24, 0x08   */
     0x80, 0x93, 0xc1, 0x00, /* sts 0x00C1, r24 ; Enable tx */
@@ -285,6 +288,13 @@ int main(int argc, char *argv[])
     const char *arch = qtest_get_arch();
     int i;
 
+    has_tcg = qtest_has_accel("tcg");
+    has_kvm = qtest_has_accel("kvm");
+
+    if (!has_tcg && !has_kvm) {
+        return 0;
+    }
+
     g_test_init(&argc, &argv, NULL);
 
     for (i = 0; tests[i].arch != NULL; i++) {
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index 109bc8e7b1..a6e3ca9f7d 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -2460,11 +2460,16 @@ static bool kvm_dirty_ring_supported(void)
 int main(int argc, char **argv)
 {
     const bool has_kvm = qtest_has_accel("kvm");
+    const bool has_tcg = qtest_has_accel("tcg");
     const bool has_uffd = ufd_version_check();
     const char *arch = qtest_get_arch();
     g_autoptr(GError) err = NULL;
     int ret;
 
+    if (!has_tcg && !has_kvm) {
+        return 0;
+    }
+
     g_test_init(&argc, &argv, NULL);
 
     /*
diff --git a/tests/qtest/pxe-test.c b/tests/qtest/pxe-test.c
index 62b6eef464..05575f7687 100644
--- a/tests/qtest/pxe-test.c
+++ b/tests/qtest/pxe-test.c
@@ -130,6 +130,12 @@ int main(int argc, char *argv[])
 {
     int ret;
     const char *arch = qtest_get_arch();
+    bool has_tcg = qtest_has_accel("tcg");
+    bool has_kvm = qtest_has_accel("kvm");
+
+    if (!has_tcg && !has_kvm) {
+        return 0;
+    }
 
     ret = boot_sector_init(disk);
     if(ret)
diff --git a/tests/qtest/vmgenid-test.c b/tests/qtest/vmgenid-test.c
index efba76e716..8045d3d706 100644
--- a/tests/qtest/vmgenid-test.c
+++ b/tests/qtest/vmgenid-test.c
@@ -164,6 +164,12 @@ static void vmgenid_query_monitor_test(void)
 int main(int argc, char **argv)
 {
     int ret;
+    bool has_tcg = qtest_has_accel("tcg");
+    bool has_kvm = qtest_has_accel("kvm");
+
+    if (!has_tcg && !has_kvm) {
+        return 0;
+    }
 
     ret = boot_sector_init(disk);
     if (ret) {
-- 
2.35.3