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migration-test: memory_backend

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Allow each migration test to define its own memory backend, replacing
the standard "-m <size>" specification.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/1736967650-129648-18-git-send-email-steven.sistare@oracle.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>
This commit is contained in:
Steve Sistare 2025-01-15 11:00:43 -08:00 committed by Fabiano Rosas
parent 624e6e654e
commit fdbfbfc75e
2 changed files with 16 additions and 4 deletions
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15
tests/qtest/migration/framework.c
View File

@ -221,6 +221,7 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
g_autofree char *machine = NULL;
const char *bootpath;
g_autoptr(QList) capabilities = migrate_start_get_qmp_capabilities(args);
g_autofree char *memory_backend = NULL;
if (args->use_shmem) {
if (!g_file_test("/dev/shm", G_FILE_TEST_IS_DIR)) {
@ -296,6 +297,12 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
memory_size, shmem_path);
}
if (args->memory_backend) {
memory_backend = g_strdup_printf(args->memory_backend, memory_size);
} else {
memory_backend = g_strdup_printf("-m %s ", memory_size);
}
if (args->use_dirty_ring) {
kvm_opts = ",dirty-ring-size=4096";
}
@ -314,12 +321,12 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
cmd_source = g_strdup_printf("-accel kvm%s -accel tcg "
"-machine %s,%s "
"-name source,debug-threads=on "
"-m %s "
"%s "
"-serial file:%s/src_serial "
"%s %s %s %s",
kvm_opts ? kvm_opts : "",
machine, machine_opts,
memory_size, tmpfs,
memory_backend, tmpfs,
arch_opts ? arch_opts : "",
shmem_opts ? shmem_opts : "",
args->opts_source ? args->opts_source : "",
@ -335,13 +342,13 @@ int migrate_start(QTestState **from, QTestState **to, const char *uri,
cmd_target = g_strdup_printf("-accel kvm%s -accel tcg "
"-machine %s,%s "
"-name target,debug-threads=on "
"-m %s "
"%s "
"-serial file:%s/dest_serial "
"-incoming %s "
"%s %s %s %s",
kvm_opts ? kvm_opts : "",
machine, machine_opts,
memory_size, tmpfs, uri,
memory_backend, tmpfs, uri,
arch_opts ? arch_opts : "",
shmem_opts ? shmem_opts : "",
args->opts_target ? args->opts_target : "",

5
tests/qtest/migration/framework.h
View File

@ -111,6 +111,11 @@ typedef struct {
bool suspend_me;
/* enable OOB QMP capability */
bool oob;
/*
* Format string for the main memory backend, containing one %s where the
* size is plugged in. If omitted, "-m %s" is used.
*/
const char *memory_backend;
} MigrateStart;
typedef enum PostcopyRecoveryFailStage {