Merge tag 'qtest-20250102-pull-request' of https://gitlab.com/farosas/qemu into staging

Qtest pull request

- migration-test: fix UADK build, reinstate postcopy tests and other cleanups
- a couple of memory leak fixes for bios-tables-test and virtio-iommu-test
- drop dead code from fw_cfg-test

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* tag 'qtest-20250102-pull-request' of https://gitlab.com/farosas/qemu:
  qtest/fw-cfg: remove compiled out code
  tests/qtest/migration: Re-enable postcopy tests
  tests/migration: Drop arch_[source|target]
  tests/qtest/virtio-iommu-test: Don't pass uninitialized data into qtest_memwrite
  tests/qtest/bios-tables-test: Free tables at dump_aml_files
  tests/qtest/migration: Initialize buffer in probe_o_direct_support
  tests/qtest/migration: Do proper cleanup in the dirty_limit test
  tests/qtest/migration: Fix compile errors when CONFIG_UADK is set

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

tests/qtest/bios-tables-test.c

@@ -292,6 +292,7 @@ static void dump_aml_files(test_data *data, bool rebuild)
 
         g_free(aml_file);
     }
+    free_test_data(&exp_data);
 }
 
 static bool create_tmp_asl(AcpiSdtTable *sdt)

tests/qtest/fw_cfg-test.c

@@ -243,12 +243,6 @@ int main(int argc, char **argv)
     qtest_add_func("fw_cfg/ram_size", test_fw_cfg_ram_size);
     qtest_add_func("fw_cfg/nographic", test_fw_cfg_nographic);
     qtest_add_func("fw_cfg/nb_cpus", test_fw_cfg_nb_cpus);
-#if 0
-    qtest_add_func("fw_cfg/machine_id", test_fw_cfg_machine_id);
-    qtest_add_func("fw_cfg/kernel", test_fw_cfg_kernel);
-    qtest_add_func("fw_cfg/initrd", test_fw_cfg_initrd);
-    qtest_add_func("fw_cfg/boot_device", test_fw_cfg_boot_device);
-#endif
     qtest_add_func("fw_cfg/max_cpus", test_fw_cfg_max_cpus);
     qtest_add_func("fw_cfg/numa", test_fw_cfg_numa);
     qtest_add_func("fw_cfg/boot_menu", test_fw_cfg_boot_menu);

tests/qtest/migration/compression-tests.c

@@ -88,59 +88,6 @@ migrate_hook_start_precopy_tcp_multifd_uadk(QTestState *from,
     return migrate_hook_start_precopy_tcp_multifd_common(from, to, "uadk");
 }
 
-static void *
-migrate_hook_start_xbzrle(QTestState *from,
-                          QTestState *to)
-{
-    migrate_set_parameter_int(from, "xbzrle-cache-size", 33554432);
-
-    migrate_set_capability(from, "xbzrle", true);
-    migrate_set_capability(to, "xbzrle", true);
-
-    return NULL;
-}
-
-static void test_precopy_unix_xbzrle(void)
-{
-    g_autofree char *uri = g_strdup_printf("unix:%s/migsocket", tmpfs);
-    MigrateCommon args = {
-        .connect_uri = uri,
-        .listen_uri = uri,
-        .start_hook = migrate_hook_start_xbzrle,
-        .iterations = 2,
-        /*
-         * XBZRLE needs pages to be modified when doing the 2nd+ round
-         * iteration to have real data pushed to the stream.
-         */
-        .live = true,
-    };
-
-    test_precopy_common(&args);
-}
-
-static void *
-migrate_hook_start_precopy_tcp_multifd_zlib(QTestState *from,
-                                            QTestState *to)
-{
-    /*
-     * Overloading this test to also check that set_parameter does not error.
-     * This is also done in the tests for the other compression methods.
-     */
-    migrate_set_parameter_int(from, "multifd-zlib-level", 2);
-    migrate_set_parameter_int(to, "multifd-zlib-level", 2);
-
-    return migrate_hook_start_precopy_tcp_multifd_common(from, to, "zlib");
-}
-
-static void test_multifd_tcp_zlib(void)
-{
-    MigrateCommon args = {
-        .listen_uri = "defer",
-        .start_hook = migrate_hook_start_precopy_tcp_multifd_zlib,
-    };
-    test_precopy_common(&args);
-}
-
 static void test_multifd_tcp_uadk(void)
 {
     MigrateCommon args = {
@@ -151,7 +98,6 @@ static void test_multifd_tcp_uadk(void)
 }
 #endif /* CONFIG_UADK */
 
-
 static void *
 migrate_hook_start_xbzrle(QTestState *from,
                           QTestState *to)

tests/qtest/migration/framework.c

@@ -197,8 +197,6 @@ static void cleanup(const char *filename)
 int migrate_start(QTestState **from, QTestState **to, const char *uri,
                   MigrateStart *args)
 {
-    g_autofree gchar *arch_source = NULL;
-    g_autofree gchar *arch_target = NULL;
     /* options for source and target */
     g_autofree gchar *arch_opts = NULL;
     g_autofree gchar *cmd_source = NULL;
@@ -307,12 +305,11 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
                                  "-name source,debug-threads=on "
                                  "-m %s "
                                  "-serial file:%s/src_serial "
-                                 "%s %s %s %s %s",
+                                 "%s %s %s %s",
                                  kvm_opts ? kvm_opts : "",
                                  machine, machine_opts,
                                  memory_size, tmpfs,
                                  arch_opts ? arch_opts : "",
-                                 arch_source ? arch_source : "",
                                  shmem_opts ? shmem_opts : "",
                                  args->opts_source ? args->opts_source : "",
                                  ignore_stderr);
@@ -329,12 +326,11 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
                                  "-m %s "
                                  "-serial file:%s/dest_serial "
                                  "-incoming %s "
-                                 "%s %s %s %s %s",
+                                 "%s %s %s %s",
                                  kvm_opts ? kvm_opts : "",
                                  machine, machine_opts,
                                  memory_size, tmpfs, uri,
                                  arch_opts ? arch_opts : "",
-                                 arch_target ? arch_target : "",
                                  shmem_opts ? shmem_opts : "",
                                  args->opts_target ? args->opts_target : "",
                                  ignore_stderr);

tests/qtest/migration/migration-util.c

@@ -22,6 +22,11 @@
 #include "migration/bootfile.h"
 #include "migration/migration-util.h"
 
+#if defined(__linux__)
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#endif
+
 /* for uffd_version_check() */
 #if defined(__linux__) && defined(__NR_userfaultfd) && defined(CONFIG_EVENTFD)
 #include <sys/eventfd.h>
@@ -31,7 +36,6 @@
 /* For dirty ring test; so far only x86_64 is supported */
 #if defined(__linux__) && defined(HOST_X86_64)
 #include "linux/kvm.h"
-#include <sys/ioctl.h>
 #endif
 
 
@@ -284,6 +288,7 @@ bool probe_o_direct_support(const char *tmpfs)
 
     buf = qemu_try_memalign(len, len);
     g_assert(buf);
+    memset(buf, 0, len);
 
     ret = pwrite(fd, buf, len, offset);
     unlink(filename);

tests/qtest/migration/precopy-tests.c

@@ -877,6 +877,11 @@ static void test_dirty_limit(void)
     migrate_cancel(from);
     wait_for_migration_status(from, "cancelled", NULL);
 
+    /* destination always fails after cancel */
+    migration_event_wait(to, "failed");
+    qtest_set_expected_status(to, EXIT_FAILURE);
+    qtest_quit(to);
+
     /* Check if dirty limit throttle switched off, set timeout 1ms */
     do {
         throttle_us_per_full =

tests/qtest/virtio-iommu-test.c

@@ -105,7 +105,7 @@ static int send_map(QTestState *qts, QVirtioIOMMU *v_iommu,
     QVirtQueue *vq = v_iommu->vq;
     uint64_t ro_addr, wr_addr;
     uint32_t free_head;
-    struct virtio_iommu_req_map req;
+    struct virtio_iommu_req_map req = {};
     size_t ro_size = sizeof(req) - sizeof(struct virtio_iommu_req_tail);
     size_t wr_size = sizeof(struct virtio_iommu_req_tail);
     struct virtio_iommu_req_tail buffer;
@@ -147,7 +147,7 @@ static int send_unmap(QTestState *qts, QVirtioIOMMU *v_iommu,
     QVirtQueue *vq = v_iommu->vq;
     uint64_t ro_addr, wr_addr;
     uint32_t free_head;
-    struct virtio_iommu_req_unmap req;
+    struct virtio_iommu_req_unmap req = {};
     size_t ro_size = sizeof(req) - sizeof(struct virtio_iommu_req_tail);
     size_t wr_size = sizeof(struct virtio_iommu_req_tail);
     struct virtio_iommu_req_tail buffer;