* [Qemu-devel] [PULL 00/12] Migration queue
@ 2018-09-13 12:53 Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 01/12] migration/rdma: Fix uninitialised rdma_return_path Juan Quintela
` (11 more replies)
0 siblings, 12 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx
The following changes since commit 19b599f7664b2ebfd0f405fb79c14dd241557452:
Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-08-27-v2' into staging (2018-08-27 16:44:20 +0100)
are available in the Git repository at:
git://github.com/juanquintela/qemu.git tags/migration/20180913
for you to fetch changes up to 418fe4f69648b4f3f0afd2588926deafac81cfe8:
tests/migration: Enable the migration test on s390x, too (2018-09-13 14:06:26 +0200)
----------------------------------------------------------------
migration/next for 20180913
Hi this patchset has all pending migration queue that I have (It
superceedes the previous one).
- fix rdma_return_path (david)
- s390 migration-test (thomas)
I ported it to the nema Makefile architecuter
Please thomas, confirm that you agree with my changes
- aarch64 migration-test (wei)
- lots of compression fixes (xiao)
Please, apply.
----------------------------------------------------------------
Dr. David Alan Gilbert (1):
migration/rdma: Fix uninitialised rdma_return_path
Jose Ricardo Ziviani (1):
Add a hint message to loadvm and exits on failure
Thomas Huth (1):
tests/migration: Enable the migration test on s390x, too
Wei Huang (4):
tests/migration: Convert x86 boot block compilation script into Makefile
tests/migration: Support cross compilation in generating boot header file
tests/migration: Add migration-test header file
tests: Add migration test for aarch64
Xiao Guangrong (5):
migration: fix calculating xbzrle_counters.cache_miss_rate
migration: handle the error condition properly
migration: do not flush_compressed_data at the end of iteration
migration: show the statistics of compression
migration: use save_page_use_compression in flush_compressed_data
hmp.c | 13 +
migration/migration.c | 12 +
migration/ram.c | 103 +++--
migration/ram.h | 1 +
migration/rdma.c | 2 +-
migration/savevm.c | 4 +-
qapi/migration.json | 26 +-
tests/Makefile.include | 2 +
tests/migration-test.c | 83 +++-
tests/migration/Makefile | 35 ++
tests/migration/aarch64/Makefile | 20 +
tests/migration/aarch64/a-b-kernel.S | 75 ++++
tests/migration/aarch64/a-b-kernel.h | 19 +
tests/migration/i386/Makefile | 22 ++
.../{x86-a-b-bootblock.s => i386/a-b-bootblock.S} | 4 -
.../{x86-a-b-bootblock.h => i386/a-b-bootblock.h} | 8 +-
tests/migration/migration-test.h | 34 ++
tests/migration/rebuild-x86-bootblock.sh | 33 --
tests/migration/s390x/Makefile | 22 ++
tests/migration/s390x/a-b-bios.c | 35 ++
tests/migration/s390x/a-b-bios.h | 427 +++++++++++++++++++++
vl.c | 1 +
22 files changed, 899 insertions(+), 82 deletions(-)
create mode 100644 tests/migration/Makefile
create mode 100644 tests/migration/aarch64/Makefile
create mode 100644 tests/migration/aarch64/a-b-kernel.S
create mode 100644 tests/migration/aarch64/a-b-kernel.h
create mode 100644 tests/migration/i386/Makefile
rename tests/migration/{x86-a-b-bootblock.s => i386/a-b-bootblock.S} (93%)
rename tests/migration/{x86-a-b-bootblock.h => i386/a-b-bootblock.h} (92%)
create mode 100644 tests/migration/migration-test.h
delete mode 100755 tests/migration/rebuild-x86-bootblock.sh
create mode 100644 tests/migration/s390x/Makefile
create mode 100644 tests/migration/s390x/a-b-bios.c
create mode 100644 tests/migration/s390x/a-b-bios.h
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 01/12] migration/rdma: Fix uninitialised rdma_return_path
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 02/12] migration: fix calculating xbzrle_counters.cache_miss_rate Juan Quintela
` (10 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Clang correctly errors out moaning that rdma_return_path
is used uninitialised in the earlier error paths.
Make it NULL so that the error path ignores it.
Fixes: 55cc1b5937a8e709e4c102e74b206281073aab82
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reported-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20180830173657.22939-1-dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/migration/rdma.c b/migration/rdma.c
index ae07515e83..9b2e7e10aa 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -4012,7 +4012,7 @@ static void rdma_accept_incoming_migration(void *opaque)
void rdma_start_incoming_migration(const char *host_port, Error **errp)
{
int ret;
- RDMAContext *rdma, *rdma_return_path;
+ RDMAContext *rdma, *rdma_return_path = NULL;
Error *local_err = NULL;
trace_rdma_start_incoming_migration();
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 02/12] migration: fix calculating xbzrle_counters.cache_miss_rate
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 01/12] migration/rdma: Fix uninitialised rdma_return_path Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 03/12] migration: handle the error condition properly Juan Quintela
` (9 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
As Peter pointed out:
| - xbzrle_counters.cache_miss is done in save_xbzrle_page(), so it's
| per-guest-page granularity
|
| - RAMState.iterations is done for each ram_find_and_save_block(), so
| it's per-host-page granularity
|
| An example is that when we migrate a 2M huge page in the guest, we
| will only increase the RAMState.iterations by 1 (since
| ram_find_and_save_block() will be called once), but we might increase
| xbzrle_counters.cache_miss for 2M/4K=512 times (we'll call
| save_xbzrle_page() that many times) if all the pages got cache miss.
| Then IMHO the cache miss rate will be 512/1=51200% (while it should
| actually be just 100% cache miss).
And he also suggested as xbzrle_counters.cache_miss_rate is the only
user of rs->iterations we can adapt it to count target guest page
numbers
After that, rename 'iterations' to 'target_page_count' to better reflect
its meaning
Suggested-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20180903092644.25812-3-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/ram.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 79c89425a3..5a54836c28 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -301,10 +301,10 @@ struct RAMState {
uint64_t num_dirty_pages_period;
/* xbzrle misses since the beginning of the period */
uint64_t xbzrle_cache_miss_prev;
- /* number of iterations at the beginning of period */
- uint64_t iterations_prev;
- /* Iterations since start */
- uint64_t iterations;
+ /* total handled target pages at the beginning of period */
+ uint64_t target_page_count_prev;
+ /* total handled target pages since start */
+ uint64_t target_page_count;
/* number of dirty bits in the bitmap */
uint64_t migration_dirty_pages;
/* protects modification of the bitmap */
@@ -1592,19 +1592,19 @@ uint64_t ram_pagesize_summary(void)
static void migration_update_rates(RAMState *rs, int64_t end_time)
{
- uint64_t iter_count = rs->iterations - rs->iterations_prev;
+ uint64_t page_count = rs->target_page_count - rs->target_page_count_prev;
/* calculate period counters */
ram_counters.dirty_pages_rate = rs->num_dirty_pages_period * 1000
/ (end_time - rs->time_last_bitmap_sync);
- if (!iter_count) {
+ if (!page_count) {
return;
}
if (migrate_use_xbzrle()) {
xbzrle_counters.cache_miss_rate = (double)(xbzrle_counters.cache_miss -
- rs->xbzrle_cache_miss_prev) / iter_count;
+ rs->xbzrle_cache_miss_prev) / page_count;
rs->xbzrle_cache_miss_prev = xbzrle_counters.cache_miss;
}
}
@@ -1662,7 +1662,7 @@ static void migration_bitmap_sync(RAMState *rs)
migration_update_rates(rs, end_time);
- rs->iterations_prev = rs->iterations;
+ rs->target_page_count_prev = rs->target_page_count;
/* reset period counters */
rs->time_last_bitmap_sync = end_time;
@@ -3196,7 +3196,7 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
done = 1;
break;
}
- rs->iterations++;
+ rs->target_page_count += pages;
/* we want to check in the 1st loop, just in case it was the 1st time
and we had to sync the dirty bitmap.
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 03/12] migration: handle the error condition properly
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 01/12] migration/rdma: Fix uninitialised rdma_return_path Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 02/12] migration: fix calculating xbzrle_counters.cache_miss_rate Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 04/12] Add a hint message to loadvm and exits on failure Juan Quintela
` (8 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
ram_find_and_save_block() can return negative if any error hanppens,
however, it is completely ignored in current code
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20180903092644.25812-5-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/ram.c | 18 +++++++++++++++---
1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 5a54836c28..2add09174d 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -2372,7 +2372,8 @@ static int ram_save_host_page(RAMState *rs, PageSearchStatus *pss,
*
* Called within an RCU critical section.
*
- * Returns the number of pages written where zero means no dirty pages
+ * Returns the number of pages written where zero means no dirty pages,
+ * or negative on error
*
* @rs: current RAM state
* @last_stage: if we are at the completion stage
@@ -3196,6 +3197,12 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
done = 1;
break;
}
+
+ if (pages < 0) {
+ qemu_file_set_error(f, pages);
+ break;
+ }
+
rs->target_page_count += pages;
/* we want to check in the 1st loop, just in case it was the 1st time
@@ -3238,7 +3245,7 @@ out:
/**
* ram_save_complete: function called to send the remaining amount of ram
*
- * Returns zero to indicate success
+ * Returns zero to indicate success or negative on error
*
* Called with iothread lock
*
@@ -3249,6 +3256,7 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
{
RAMState **temp = opaque;
RAMState *rs = *temp;
+ int ret = 0;
rcu_read_lock();
@@ -3269,6 +3277,10 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
if (pages == 0) {
break;
}
+ if (pages < 0) {
+ ret = pages;
+ break;
+ }
}
flush_compressed_data(rs);
@@ -3280,7 +3292,7 @@ static int ram_save_complete(QEMUFile *f, void *opaque)
qemu_put_be64(f, RAM_SAVE_FLAG_EOS);
qemu_fflush(f);
- return 0;
+ return ret;
}
static void ram_save_pending(QEMUFile *f, void *opaque, uint64_t max_size,
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 04/12] Add a hint message to loadvm and exits on failure
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (2 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 03/12] migration: handle the error condition properly Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 05/12] migration: do not flush_compressed_data at the end of iteration Juan Quintela
` (7 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Jose Ricardo Ziviani
From: Jose Ricardo Ziviani <joserz@linux.ibm.com>
This patch adds a small hint for the failure case of the load snapshot
process. It may be useful for users to remember that the VM
configuration has changed between the save and load processes.
(qemu) loadvm vm-20180903083641
Unknown savevm section or instance 'cpu_common' 4.
Make sure that your current VM setup matches your saved VM setup, including any hotplugged devices
Error -22 while loading VM state
(qemu) device_add host-spapr-cpu-core,core-id=4
(qemu) loadvm vm-20180903083641
(qemu) c
(qemu) info status
VM status: running
It also exits Qemu if the snapshot cannot be loaded before reaching the
main loop (-loadvm in the command line).
$ qemu-system-ppc64 ... -loadvm vm-20180903083641
qemu-system-ppc64: Unknown savevm section or instance 'cpu_common' 4.
Make sure that your current VM setup matches your saved VM setup, including any hotplugged devices
qemu-system-ppc64: Error -22 while loading VM state
$
Signed-off-by: Jose Ricardo Ziviani <joserz@linux.ibm.com>
Message-Id: <20180903162613.15877-1-joserz@linux.ibm.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/savevm.c | 4 +++-
vl.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/migration/savevm.c b/migration/savevm.c
index 13e51f0e34..9692577318 100644
--- a/migration/savevm.c
+++ b/migration/savevm.c
@@ -2078,7 +2078,9 @@ qemu_loadvm_section_start_full(QEMUFile *f, MigrationIncomingState *mis)
/* Find savevm section */
se = find_se(idstr, instance_id);
if (se == NULL) {
- error_report("Unknown savevm section or instance '%s' %d",
+ error_report("Unknown savevm section or instance '%s' %d. "
+ "Make sure that your current VM setup matches your "
+ "saved VM setup, including any hotplugged devices",
idstr, instance_id);
return -EINVAL;
}
diff --git a/vl.c b/vl.c
index 5ba06adf78..c63270a76a 100644
--- a/vl.c
+++ b/vl.c
@@ -4620,6 +4620,7 @@ int main(int argc, char **argv, char **envp)
if (load_snapshot(loadvm, &local_err) < 0) {
error_report_err(local_err);
autostart = 0;
+ exit(1);
}
}
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 05/12] migration: do not flush_compressed_data at the end of iteration
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (3 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 04/12] Add a hint message to loadvm and exits on failure Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 06/12] migration: show the statistics of compression Juan Quintela
` (6 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
flush_compressed_data() needs to wait all compression threads to
finish their work, after that all threads are free until the
migration feeds new request to them, reducing its call can improve
the throughput and use CPU resource more effectively
We do not need to flush all threads at the end of iteration, the
data can be kept locally until the memory block is changed or
memory migration starts over in that case we will meet a dirtied
page which may still exists in compression threads's ring
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20180906070101.27280-2-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/ram.c | 18 +++++++++++-------
1 file changed, 11 insertions(+), 7 deletions(-)
diff --git a/migration/ram.c b/migration/ram.c
index 2add09174d..e152831254 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -1996,17 +1996,22 @@ static bool find_dirty_block(RAMState *rs, PageSearchStatus *pss, bool *again)
pss->page = 0;
pss->block = QLIST_NEXT_RCU(pss->block, next);
if (!pss->block) {
+ /*
+ * If memory migration starts over, we will meet a dirtied page
+ * which may still exists in compression threads's ring, so we
+ * should flush the compressed data to make sure the new page
+ * is not overwritten by the old one in the destination.
+ *
+ * Also If xbzrle is on, stop using the data compression at this
+ * point. In theory, xbzrle can do better than compression.
+ */
+ flush_compressed_data(rs);
+
/* Hit the end of the list */
pss->block = QLIST_FIRST_RCU(&ram_list.blocks);
/* Flag that we've looped */
pss->complete_round = true;
rs->ram_bulk_stage = false;
- if (migrate_use_xbzrle()) {
- /* If xbzrle is on, stop using the data compression at this
- * point. In theory, xbzrle can do better than compression.
- */
- flush_compressed_data(rs);
- }
}
/* Didn't find anything this time, but try again on the new block */
*again = true;
@@ -3219,7 +3224,6 @@ static int ram_save_iterate(QEMUFile *f, void *opaque)
}
i++;
}
- flush_compressed_data(rs);
rcu_read_unlock();
/*
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 06/12] migration: show the statistics of compression
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (4 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 05/12] migration: do not flush_compressed_data at the end of iteration Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 07/12] migration: use save_page_use_compression in flush_compressed_data Juan Quintela
` (5 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
Currently, it includes:
pages: amount of pages compressed and transferred to the target VM
busy: amount of count that no free thread to compress data
busy-rate: rate of thread busy
compressed-size: amount of bytes after compression
compression-rate: rate of compressed size
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Message-Id: <20180906070101.27280-3-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
hmp.c | 13 +++++++++++++
migration/migration.c | 12 ++++++++++++
migration/ram.c | 45 ++++++++++++++++++++++++++++++++++++++++---
migration/ram.h | 1 +
qapi/migration.json | 26 ++++++++++++++++++++++++-
5 files changed, 93 insertions(+), 4 deletions(-)
diff --git a/hmp.c b/hmp.c
index 4975fa56b0..f57b23d889 100644
--- a/hmp.c
+++ b/hmp.c
@@ -271,6 +271,19 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
info->xbzrle_cache->overflow);
}
+ if (info->has_compression) {
+ monitor_printf(mon, "compression pages: %" PRIu64 " pages\n",
+ info->compression->pages);
+ monitor_printf(mon, "compression busy: %" PRIu64 "\n",
+ info->compression->busy);
+ monitor_printf(mon, "compression busy rate: %0.2f\n",
+ info->compression->busy_rate);
+ monitor_printf(mon, "compressed size: %" PRIu64 "\n",
+ info->compression->compressed_size);
+ monitor_printf(mon, "compression rate: %0.2f\n",
+ info->compression->compression_rate);
+ }
+
if (info->has_cpu_throttle_percentage) {
monitor_printf(mon, "cpu throttle percentage: %" PRIu64 "\n",
info->cpu_throttle_percentage);
diff --git a/migration/migration.c b/migration/migration.c
index 4b316ec343..f1d662f928 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -758,6 +758,18 @@ static void populate_ram_info(MigrationInfo *info, MigrationState *s)
info->xbzrle_cache->overflow = xbzrle_counters.overflow;
}
+ if (migrate_use_compression()) {
+ info->has_compression = true;
+ info->compression = g_malloc0(sizeof(*info->compression));
+ info->compression->pages = compression_counters.pages;
+ info->compression->busy = compression_counters.busy;
+ info->compression->busy_rate = compression_counters.busy_rate;
+ info->compression->compressed_size =
+ compression_counters.compressed_size;
+ info->compression->compression_rate =
+ compression_counters.compression_rate;
+ }
+
if (cpu_throttle_active()) {
info->has_cpu_throttle_percentage = true;
info->cpu_throttle_percentage = cpu_throttle_get_percentage();
diff --git a/migration/ram.c b/migration/ram.c
index e152831254..65a563993d 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -301,6 +301,15 @@ struct RAMState {
uint64_t num_dirty_pages_period;
/* xbzrle misses since the beginning of the period */
uint64_t xbzrle_cache_miss_prev;
+
+ /* compression statistics since the beginning of the period */
+ /* amount of count that no free thread to compress data */
+ uint64_t compress_thread_busy_prev;
+ /* amount bytes after compression */
+ uint64_t compressed_size_prev;
+ /* amount of compressed pages */
+ uint64_t compress_pages_prev;
+
/* total handled target pages at the beginning of period */
uint64_t target_page_count_prev;
/* total handled target pages since start */
@@ -338,6 +347,8 @@ struct PageSearchStatus {
};
typedef struct PageSearchStatus PageSearchStatus;
+CompressionStats compression_counters;
+
struct CompressParam {
bool done;
bool quit;
@@ -1593,6 +1604,7 @@ uint64_t ram_pagesize_summary(void)
static void migration_update_rates(RAMState *rs, int64_t end_time)
{
uint64_t page_count = rs->target_page_count - rs->target_page_count_prev;
+ double compressed_size;
/* calculate period counters */
ram_counters.dirty_pages_rate = rs->num_dirty_pages_period * 1000
@@ -1607,6 +1619,26 @@ static void migration_update_rates(RAMState *rs, int64_t end_time)
rs->xbzrle_cache_miss_prev) / page_count;
rs->xbzrle_cache_miss_prev = xbzrle_counters.cache_miss;
}
+
+ if (migrate_use_compression()) {
+ compression_counters.busy_rate = (double)(compression_counters.busy -
+ rs->compress_thread_busy_prev) / page_count;
+ rs->compress_thread_busy_prev = compression_counters.busy;
+
+ compressed_size = compression_counters.compressed_size -
+ rs->compressed_size_prev;
+ if (compressed_size) {
+ double uncompressed_size = (compression_counters.pages -
+ rs->compress_pages_prev) * TARGET_PAGE_SIZE;
+
+ /* Compression-Ratio = Uncompressed-size / Compressed-size */
+ compression_counters.compression_rate =
+ uncompressed_size / compressed_size;
+
+ rs->compress_pages_prev = compression_counters.pages;
+ rs->compressed_size_prev = compression_counters.compressed_size;
+ }
+ }
}
static void migration_bitmap_sync(RAMState *rs)
@@ -1888,10 +1920,16 @@ exit:
static void
update_compress_thread_counts(const CompressParam *param, int bytes_xmit)
{
- if (param->zero_page) {
- ram_counters.duplicate++;
- }
ram_counters.transferred += bytes_xmit;
+
+ if (param->zero_page) {
+ ram_counters.duplicate++;
+ return;
+ }
+
+ /* 8 means a header with RAM_SAVE_FLAG_CONTINUE. */
+ compression_counters.compressed_size += bytes_xmit - 8;
+ compression_counters.pages++;
}
static void flush_compressed_data(RAMState *rs)
@@ -2264,6 +2302,7 @@ static bool save_compress_page(RAMState *rs, RAMBlock *block, ram_addr_t offset)
return true;
}
+ compression_counters.busy++;
return false;
}
diff --git a/migration/ram.h b/migration/ram.h
index 457bf54b8c..a139066846 100644
--- a/migration/ram.h
+++ b/migration/ram.h
@@ -36,6 +36,7 @@
extern MigrationStats ram_counters;
extern XBZRLECacheStats xbzrle_counters;
+extern CompressionStats compression_counters;
int xbzrle_cache_resize(int64_t new_size, Error **errp);
uint64_t ram_bytes_remaining(void);
diff --git a/qapi/migration.json b/qapi/migration.json
index f62d3f9a4b..6e8c21258a 100644
--- a/qapi/migration.json
+++ b/qapi/migration.json
@@ -75,6 +75,27 @@
'cache-miss': 'int', 'cache-miss-rate': 'number',
'overflow': 'int' } }
+##
+# @CompressionStats:
+#
+# Detailed migration compression statistics
+#
+# @pages: amount of pages compressed and transferred to the target VM
+#
+# @busy: count of times that no free thread was available to compress data
+#
+# @busy-rate: rate of thread busy
+#
+# @compressed-size: amount of bytes after compression
+#
+# @compression-rate: rate of compressed size
+#
+# Since: 3.1
+##
+{ 'struct': 'CompressionStats',
+ 'data': {'pages': 'int', 'busy': 'int', 'busy-rate': 'number',
+ 'compressed-size': 'int', 'compression-rate': 'number' } }
+
##
# @MigrationStatus:
#
@@ -172,6 +193,8 @@
# only present when the postcopy-blocktime migration capability
# is enabled. (Since 3.0)
#
+# @compression: migration compression statistics, only returned if compression
+# feature is on and status is 'active' or 'completed' (Since 3.1)
#
# Since: 0.14.0
##
@@ -186,7 +209,8 @@
'*cpu-throttle-percentage': 'int',
'*error-desc': 'str',
'*postcopy-blocktime' : 'uint32',
- '*postcopy-vcpu-blocktime': ['uint32']} }
+ '*postcopy-vcpu-blocktime': ['uint32'],
+ '*compression': 'CompressionStats'} }
##
# @query-migrate:
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 07/12] migration: use save_page_use_compression in flush_compressed_data
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (5 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 06/12] migration: show the statistics of compression Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 08/12] tests/migration: Convert x86 boot block compilation script into Makefile Juan Quintela
` (4 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Xiao Guangrong
From: Xiao Guangrong <xiaoguangrong@tencent.com>
It avoids to touch compression locks if xbzrle and compression
are both enabled
Signed-off-by: Xiao Guangrong <xiaoguangrong@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20180906070101.27280-4-xiaoguangrong@tencent.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
migration/ram.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/migration/ram.c b/migration/ram.c
index 65a563993d..747dd9208b 100644
--- a/migration/ram.c
+++ b/migration/ram.c
@@ -1932,11 +1932,13 @@ update_compress_thread_counts(const CompressParam *param, int bytes_xmit)
compression_counters.pages++;
}
+static bool save_page_use_compression(RAMState *rs);
+
static void flush_compressed_data(RAMState *rs)
{
int idx, len, thread_count;
- if (!migrate_use_compression()) {
+ if (!save_page_use_compression(rs)) {
return;
}
thread_count = migrate_compress_threads();
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 08/12] tests/migration: Convert x86 boot block compilation script into Makefile
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (6 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 07/12] migration: use save_page_use_compression in flush_compressed_data Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 09/12] tests/migration: Support cross compilation in generating boot header file Juan Quintela
` (3 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Wei Huang
From: Wei Huang <wei@redhat.com>
The x86 boot block header currently is generated with a shell script.
To better support other CPUs (e.g. aarch64), we convert the script
into Makefile. This allows us to 1) support cross-compilation easily,
and 2) avoid creating a script file for every architecture.
Note that, in the new design, the cross compiler prefix can be specified by
setting the CROSS_PREFIX in "make" command. Also to allow gcc pre-processor
to include the C-style file correctly, it also renames the
x86-a-b-bootblock.s file extension from .s to .S.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1536174934-26022-2-git-send-email-wei@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
tests/migration/Makefile | 31 +++++++++++++++++
tests/migration/rebuild-x86-bootblock.sh | 33 -------------------
...86-a-b-bootblock.s => x86-a-b-bootblock.S} | 0
3 files changed, 31 insertions(+), 33 deletions(-)
create mode 100644 tests/migration/Makefile
delete mode 100755 tests/migration/rebuild-x86-bootblock.sh
rename tests/migration/{x86-a-b-bootblock.s => x86-a-b-bootblock.S} (100%)
diff --git a/tests/migration/Makefile b/tests/migration/Makefile
new file mode 100644
index 0000000000..c0824b4fbe
--- /dev/null
+++ b/tests/migration/Makefile
@@ -0,0 +1,31 @@
+# To specify cross compiler prefix, use CROSS_PREFIX=
+# $ make CROSS_PREFIX=x86_64-linux-gnu-
+
+override define __note
+/* This file is automatically generated from
+ * tests/migration/x86-a-b-bootblock.S, edit that and then run
+ * tests/migration/rebuild-x86-bootblock.sh to update,
+ * and then remember to send both in your patch submission.
+ */
+endef
+export __note
+
+.PHONY: all clean
+all: x86-a-b-bootblock.h
+
+x86-a-b-bootblock.h: x86.bootsect
+ echo "$$__note" > header.tmp
+ xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
+ mv header.tmp $@
+
+x86.bootsect: x86.boot
+ dd if=$< of=$@ bs=256 count=2 skip=124
+
+x86.boot: x86.o
+ $(CROSS_PREFIX)objcopy -O binary $< $@
+
+x86.o: x86-a-b-bootblock.S
+ $(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
+
+clean:
+ @rm -rf *.boot *.o *.bootsect
diff --git a/tests/migration/rebuild-x86-bootblock.sh b/tests/migration/rebuild-x86-bootblock.sh
deleted file mode 100755
index 86cec5d284..0000000000
--- a/tests/migration/rebuild-x86-bootblock.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-#!/bin/sh
-# Copyright (c) 2016-2018 Red Hat, Inc. and/or its affiliates
-# This work is licensed under the terms of the GNU GPL, version 2 or later.
-# See the COPYING file in the top-level directory.
-#
-# Author: dgilbert@redhat.com
-
-ASMFILE=$PWD/tests/migration/x86-a-b-bootblock.s
-HEADER=$PWD/tests/migration/x86-a-b-bootblock.h
-
-if [ ! -e "$ASMFILE" ]
-then
- echo "Couldn't find $ASMFILE" >&2
- exit 1
-fi
-
-ASM_WORK_DIR=$(mktemp -d --tmpdir X86BB.XXXXXX)
-cd "$ASM_WORK_DIR" &&
-as --32 -march=i486 "$ASMFILE" -o x86.o &&
-objcopy -O binary x86.o x86.boot &&
-dd if=x86.boot of=x86.bootsect bs=256 count=2 skip=124 &&
-xxd -i x86.bootsect |
-sed -e 's/.*int.*//' > x86.hex &&
-cat - x86.hex <<HERE > "$HEADER"
-/* This file is automatically generated from
- * tests/migration/x86-a-b-bootblock.s, edit that and then run
- * tests/migration/rebuild-x86-bootblock.sh to update,
- * and then remember to send both in your patch submission.
- */
-HERE
-
-rm x86.hex x86.bootsect x86.boot x86.o
-cd .. && rmdir "$ASM_WORK_DIR"
diff --git a/tests/migration/x86-a-b-bootblock.s b/tests/migration/x86-a-b-bootblock.S
similarity index 100%
rename from tests/migration/x86-a-b-bootblock.s
rename to tests/migration/x86-a-b-bootblock.S
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 09/12] tests/migration: Support cross compilation in generating boot header file
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (7 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 08/12] tests/migration: Convert x86 boot block compilation script into Makefile Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 10/12] tests/migration: Add migration-test " Juan Quintela
` (2 subsequent siblings)
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Wei Huang
From: Wei Huang <wei@redhat.com>
Recently a new configure option, CROSS_CC_GUEST, was added to
$(TARGET)-softmmu/config-target.mak to support TCG-related tests. This
patch tries to leverage this option to support cross compilation when the
migration boot block file is being re-generated:
* The x86 related files are moved to a new sub-dir (named ./i386).
* A new top-layer Makefile is created in tests/migration/ directory.
This Makefile searches and parses CROSS_CC_GUEST to generate CROSS_PREFIX.
The CROSS_PREFIX, if available, is then passed to migration/$ARCH/Makefile.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1536174934-26022-3-git-send-email-wei@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
tests/migration-test.c | 2 +-
tests/migration/Makefile | 44 ++++++++++---------
tests/migration/i386/Makefile | 22 ++++++++++
.../a-b-bootblock.S} | 4 --
.../a-b-bootblock.h} | 8 ++--
5 files changed, 51 insertions(+), 29 deletions(-)
create mode 100644 tests/migration/i386/Makefile
rename tests/migration/{x86-a-b-bootblock.S => i386/a-b-bootblock.S} (93%)
rename tests/migration/{x86-a-b-bootblock.h => i386/a-b-bootblock.h} (92%)
diff --git a/tests/migration-test.c b/tests/migration-test.c
index 0e687b7512..fe6b41a38d 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -83,7 +83,7 @@ static const char *tmpfs;
/* A simple PC boot sector that modifies memory (1-100MB) quickly
* outputting a 'B' every so often if it's still running.
*/
-#include "tests/migration/x86-a-b-bootblock.h"
+#include "tests/migration/i386/a-b-bootblock.h"
static void init_bootfile_x86(const char *bootpath)
{
diff --git a/tests/migration/Makefile b/tests/migration/Makefile
index c0824b4fbe..dc3b551976 100644
--- a/tests/migration/Makefile
+++ b/tests/migration/Makefile
@@ -1,31 +1,35 @@
-# To specify cross compiler prefix, use CROSS_PREFIX=
-# $ make CROSS_PREFIX=x86_64-linux-gnu-
+#
+# Copyright (c) 2018 Red Hat, Inc. and/or its affiliates
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or later.
+# See the COPYING file in the top-level directory.
+#
+
+TARGET_LIST = i386
+
+SRC_PATH = ../..
override define __note
-/* This file is automatically generated from
- * tests/migration/x86-a-b-bootblock.S, edit that and then run
- * tests/migration/rebuild-x86-bootblock.sh to update,
- * and then remember to send both in your patch submission.
+/* This file is automatically generated from the assembly file in
+ * tests/migration/$@. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences in your patch submission.
*/
endef
export __note
-.PHONY: all clean
-all: x86-a-b-bootblock.h
+find-arch-cross-cc = $(lastword $(shell grep -h "CROSS_CC_GUEST=" $(wildcard $(SRC_PATH)/$(patsubst i386,*86*,$(1))-softmmu/config-target.mak) /dev/null))
+parse-cross-prefix = $(subst gcc,,$(patsubst cc,gcc,$(patsubst CROSS_CC_GUEST="%",%,$(call find-arch-cross-cc,$(1)))))
+gen-cross-prefix = $(patsubst %-,CROSS_PREFIX=%-,$(call parse-cross-prefix,$(1)))
-x86-a-b-bootblock.h: x86.bootsect
- echo "$$__note" > header.tmp
- xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
- mv header.tmp $@
+.PHONY: all $(TARGET_LIST)
-x86.bootsect: x86.boot
- dd if=$< of=$@ bs=256 count=2 skip=124
+all: $(TARGET_LIST)
-x86.boot: x86.o
- $(CROSS_PREFIX)objcopy -O binary $< $@
-
-x86.o: x86-a-b-bootblock.S
- $(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
+$(TARGET_LIST):
+ $(MAKE) -C $@ $(call gen-cross-prefix,$@)
clean:
- @rm -rf *.boot *.o *.bootsect
+ for target in $(TARGET_LIST); do \
+ $(MAKE) -C $$target clean; \
+ done
diff --git a/tests/migration/i386/Makefile b/tests/migration/i386/Makefile
new file mode 100644
index 0000000000..5c0324134a
--- /dev/null
+++ b/tests/migration/i386/Makefile
@@ -0,0 +1,22 @@
+# To specify cross compiler prefix, use CROSS_PREFIX=
+# $ make CROSS_PREFIX=x86_64-linux-gnu-
+
+.PHONY: all clean
+all: a-b-bootblock.h
+
+a-b-bootblock.h: x86.bootsect
+ echo "$$__note" > header.tmp
+ xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
+ mv header.tmp $@
+
+x86.bootsect: x86.boot
+ dd if=$< of=$@ bs=256 count=2 skip=124
+
+x86.boot: x86.o
+ $(CROSS_PREFIX)objcopy -O binary $< $@
+
+x86.o: a-b-bootblock.S
+ $(CROSS_PREFIX)gcc -m32 -march=i486 -c $< -o $@
+
+clean:
+ @rm -rf *.boot *.o *.bootsect
diff --git a/tests/migration/x86-a-b-bootblock.S b/tests/migration/i386/a-b-bootblock.S
similarity index 93%
rename from tests/migration/x86-a-b-bootblock.S
rename to tests/migration/i386/a-b-bootblock.S
index b1642641a7..3f97f28023 100644
--- a/tests/migration/x86-a-b-bootblock.S
+++ b/tests/migration/i386/a-b-bootblock.S
@@ -3,10 +3,6 @@
# range.
# Outputs an initial 'A' on serial followed by repeated 'B's
#
-# run tests/migration/rebuild-x86-bootblock.sh
-# to regenerate the hex, and remember to include both the .h and .s
-# in any patches.
-#
# Copyright (c) 2016 Red Hat, Inc. and/or its affiliates
# This work is licensed under the terms of the GNU GPL, version 2 or later.
# See the COPYING file in the top-level directory.
diff --git a/tests/migration/x86-a-b-bootblock.h b/tests/migration/i386/a-b-bootblock.h
similarity index 92%
rename from tests/migration/x86-a-b-bootblock.h
rename to tests/migration/i386/a-b-bootblock.h
index 78a151fe2a..7d459d4fde 100644
--- a/tests/migration/x86-a-b-bootblock.h
+++ b/tests/migration/i386/a-b-bootblock.h
@@ -1,7 +1,7 @@
-/* This file is automatically generated from
- * tests/migration/x86-a-b-bootblock.s, edit that and then run
- * tests/migration/rebuild-x86-bootblock.sh to update,
- * and then remember to send both in your patch submission.
+/* This file is automatically generated from the assembly file in
+ * tests/migration/i386. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences in your patch submission.
*/
unsigned char x86_bootsect[] = {
0xfa, 0x0f, 0x01, 0x16, 0x74, 0x7c, 0x66, 0xb8, 0x01, 0x00, 0x00, 0x00,
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 10/12] tests/migration: Add migration-test header file
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (8 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 09/12] tests/migration: Support cross compilation in generating boot header file Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 11/12] tests: Add migration test for aarch64 Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too Juan Quintela
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Wei Huang
From: Wei Huang <wei@redhat.com>
This patch moves the settings related migration-test from the
migration-test.c file to a new header file.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1536174934-26022-4-git-send-email-wei@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
tests/migration-test.c | 28 ++++++++++++++++++----------
tests/migration/migration-test.h | 21 +++++++++++++++++++++
2 files changed, 39 insertions(+), 10 deletions(-)
create mode 100644 tests/migration/migration-test.h
diff --git a/tests/migration-test.c b/tests/migration-test.c
index fe6b41a38d..17c689601f 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -21,11 +21,13 @@
#include "chardev/char.h"
#include "sysemu/sysemu.h"
+#include "migration/migration-test.h"
+
/* TODO actually test the results and get rid of this */
#define qtest_qmp_discard_response(...) qobject_unref(qtest_qmp(__VA_ARGS__))
-const unsigned start_address = 1024 * 1024;
-const unsigned end_address = 100 * 1024 * 1024;
+unsigned start_address;
+unsigned end_address;
bool got_stop;
static bool uffd_feature_thread_id;
@@ -80,8 +82,8 @@ static bool ufd_version_check(void)
static const char *tmpfs;
-/* A simple PC boot sector that modifies memory (1-100MB) quickly
- * outputting a 'B' every so often if it's still running.
+/* The boot file modifies memory area in [start_address, end_address)
+ * repeatedly. It outputs a 'B' at a fixed rate while it's still running.
*/
#include "tests/migration/i386/a-b-bootblock.h"
@@ -270,11 +272,11 @@ static void wait_for_migration_pass(QTestState *who)
static void check_guests_ram(QTestState *who)
{
/* Our ASM test will have been incrementing one byte from each page from
- * 1MB to <100MB in order.
- * This gives us a constraint that any page's byte should be equal or less
- * than the previous pages byte (mod 256); and they should all be equal
- * except for one transition at the point where we meet the incrementer.
- * (We're running this with the guest stopped).
+ * start_address to < end_address in order. This gives us a constraint
+ * that any page's byte should be equal or less than the previous pages
+ * byte (mod 256); and they should all be equal except for one transition
+ * at the point where we meet the incrementer. (We're running this with
+ * the guest stopped).
*/
unsigned address;
uint8_t first_byte;
@@ -285,7 +287,8 @@ static void check_guests_ram(QTestState *who)
qtest_memread(who, start_address, &first_byte, 1);
last_byte = first_byte;
- for (address = start_address + 4096; address < end_address; address += 4096)
+ for (address = start_address + TEST_MEM_PAGE_SIZE; address < end_address;
+ address += TEST_MEM_PAGE_SIZE)
{
uint8_t b;
qtest_memread(who, address, &b, 1);
@@ -437,6 +440,8 @@ static int test_migrate_start(QTestState **from, QTestState **to,
" -drive file=%s,format=raw"
" -incoming %s",
accel, tmpfs, bootpath, uri);
+ start_address = X86_TEST_MEM_START;
+ end_address = X86_TEST_MEM_END;
} else if (strcmp(arch, "ppc64") == 0) {
cmd_src = g_strdup_printf("-machine accel=%s -m 256M"
" -name source,debug-threads=on"
@@ -451,6 +456,9 @@ static int test_migrate_start(QTestState **from, QTestState **to,
" -serial file:%s/dest_serial"
" -incoming %s",
accel, tmpfs, uri);
+
+ start_address = PPC_TEST_MEM_START;
+ end_address = PPC_TEST_MEM_END;
} else {
g_assert_not_reached();
}
diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h
new file mode 100644
index 0000000000..c4c0c526b6
--- /dev/null
+++ b/tests/migration/migration-test.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2018 Red Hat, Inc. and/or its affiliates
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef _TEST_MIGRATION_H_
+#define _TEST_MIGRATION_H_
+
+/* Common */
+#define TEST_MEM_PAGE_SIZE 4096
+
+/* x86 */
+#define X86_TEST_MEM_START (1 * 1024 * 1024)
+#define X86_TEST_MEM_END (100 * 1024 * 1024)
+
+/* PPC */
+#define PPC_TEST_MEM_START (1 * 1024 * 1024)
+#define PPC_TEST_MEM_END (100 * 1024 * 1024)
+
+#endif /* _TEST_MIGRATION_H_ */
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 11/12] tests: Add migration test for aarch64
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (9 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 10/12] tests/migration: Add migration-test " Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too Juan Quintela
11 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Wei Huang
From: Wei Huang <wei@redhat.com>
This patch adds migration test support for aarch64. The test code, which
implements the same functionality as x86, is booted as a kernel in qemu.
Here are the design choices we make for aarch64:
* We choose this -kernel approach because aarch64 QEMU doesn't provide a
built-in fw like x86 does. So instead of relying on a boot loader, we
use -kernel approach for aarch64.
* The serial output is sent to PL011 directly.
* The physical memory base for mach-virt machine is 0x40000000. We change
the start_address and end_address for aarch64.
In addition to providing the binary, this patch also includes the source
code and the build script in tests/migration/aarch64. So users can change
the source and/or re-compile the binary as they wish.
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Wei Huang <wei@redhat.com>
Message-Id: <1536174934-26022-5-git-send-email-wei@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
tests/Makefile.include | 1 +
tests/migration-test.c | 27 ++++++++--
tests/migration/Makefile | 2 +-
tests/migration/aarch64/Makefile | 20 ++++++++
tests/migration/aarch64/a-b-kernel.S | 75 ++++++++++++++++++++++++++++
tests/migration/aarch64/a-b-kernel.h | 19 +++++++
tests/migration/migration-test.h | 9 ++++
7 files changed, 148 insertions(+), 5 deletions(-)
create mode 100644 tests/migration/aarch64/Makefile
create mode 100644 tests/migration/aarch64/a-b-kernel.S
create mode 100644 tests/migration/aarch64/a-b-kernel.h
diff --git a/tests/Makefile.include b/tests/Makefile.include
index 87c81d1dcc..fab8fb9c27 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -390,6 +390,7 @@ check-qtest-arm-y += tests/hexloader-test$(EXESUF)
check-qtest-aarch64-y = tests/numa-test$(EXESUF)
check-qtest-aarch64-$(CONFIG_SDHCI) += tests/sdhci-test$(EXESUF)
check-qtest-aarch64-y += tests/boot-serial-test$(EXESUF)
+check-qtest-aarch64-y += tests/migration-test$(EXESUF)
check-qtest-microblazeel-y = $(check-qtest-microblaze-y)
diff --git a/tests/migration-test.c b/tests/migration-test.c
index 17c689601f..ecfae0be82 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -86,12 +86,13 @@ static const char *tmpfs;
* repeatedly. It outputs a 'B' at a fixed rate while it's still running.
*/
#include "tests/migration/i386/a-b-bootblock.h"
+#include "tests/migration/aarch64/a-b-kernel.h"
-static void init_bootfile_x86(const char *bootpath)
+static void init_bootfile(const char *bootpath, void *content)
{
FILE *bootfile = fopen(bootpath, "wb");
- g_assert_cmpint(fwrite(x86_bootsect, 512, 1, bootfile), ==, 1);
+ g_assert_cmpint(fwrite(content, 512, 1, bootfile), ==, 1);
fclose(bootfile);
}
@@ -428,7 +429,7 @@ static int test_migrate_start(QTestState **from, QTestState **to,
got_stop = false;
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
- init_bootfile_x86(bootpath);
+ init_bootfile(bootpath, x86_bootsect);
cmd_src = g_strdup_printf("-machine accel=%s -m 150M"
" -name source,debug-threads=on"
" -serial file:%s/src_serial"
@@ -459,6 +460,24 @@ static int test_migrate_start(QTestState **from, QTestState **to,
start_address = PPC_TEST_MEM_START;
end_address = PPC_TEST_MEM_END;
+ } else if (strcmp(arch, "aarch64") == 0) {
+ init_bootfile(bootpath, aarch64_kernel);
+ cmd_src = g_strdup_printf("-machine virt,accel=%s,gic-version=max "
+ "-name vmsource,debug-threads=on -cpu max "
+ "-m 150M -serial file:%s/src_serial "
+ "-kernel %s ",
+ accel, tmpfs, bootpath);
+ cmd_dst = g_strdup_printf("-machine virt,accel=%s,gic-version=max "
+ "-name vmdest,debug-threads=on -cpu max "
+ "-m 150M -serial file:%s/dest_serial "
+ "-kernel %s "
+ "-incoming %s ",
+ accel, tmpfs, bootpath, uri);
+
+ start_address = ARM_TEST_MEM_START;
+ end_address = ARM_TEST_MEM_END;
+
+ g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
} else {
g_assert_not_reached();
}
@@ -545,7 +564,7 @@ static void test_deprecated(void)
{
QTestState *from;
- from = qtest_start("");
+ from = qtest_start("-machine none");
deprecated_set_downtime(from, 0.12345);
deprecated_set_speed(from, 12345);
diff --git a/tests/migration/Makefile b/tests/migration/Makefile
index dc3b551976..91237a84d9 100644
--- a/tests/migration/Makefile
+++ b/tests/migration/Makefile
@@ -5,7 +5,7 @@
# See the COPYING file in the top-level directory.
#
-TARGET_LIST = i386
+TARGET_LIST = i386 aarch64
SRC_PATH = ../..
diff --git a/tests/migration/aarch64/Makefile b/tests/migration/aarch64/Makefile
new file mode 100644
index 0000000000..d440fa8429
--- /dev/null
+++ b/tests/migration/aarch64/Makefile
@@ -0,0 +1,20 @@
+# To specify cross compiler prefix, use CROSS_PREFIX=
+# $ make CROSS_PREFIX=aarch64-linux-gnu-
+
+.PHONY: all clean
+all: a-b-kernel.h
+
+a-b-kernel.h: aarch64.kernel
+ echo "$$__note" > header.tmp
+ xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
+ mv header.tmp $@
+
+aarch64.kernel: aarch64.elf
+ $(CROSS_PREFIX)objcopy -O binary $< $@
+
+aarch64.elf: a-b-kernel.S
+ $(CROSS_PREFIX)gcc -o $@ -nostdlib -Wl,--build-id=none $<
+
+clean:
+ @rm -rf *.kernel *.elf
+
diff --git a/tests/migration/aarch64/a-b-kernel.S b/tests/migration/aarch64/a-b-kernel.S
new file mode 100644
index 0000000000..507af30a4e
--- /dev/null
+++ b/tests/migration/aarch64/a-b-kernel.S
@@ -0,0 +1,75 @@
+#
+# Copyright (c) 2018 Red Hat, Inc. and/or its affiliates
+#
+# Author:
+# Wei Huang <wei@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.
+#
+# Note: Please make sure the compiler compiles the assembly code below with
+# pc-relative address. Also the branch instructions should use relative
+# addresses only.
+
+#include "../migration-test.h"
+
+.section .text
+
+ .globl _start
+
+_start:
+ /* disable MMU to use phys mem address */
+ mrs x0, sctlr_el1
+ bic x0, x0, #(1<<0)
+ msr sctlr_el1, x0
+ isb
+
+ /* traverse test memory region */
+ mov x0, #ARM_TEST_MEM_START
+ mov x1, #ARM_TEST_MEM_END
+
+ /* output char 'A' to PL011 */
+ mov w3, 'A'
+ mov x2, #ARM_MACH_VIRT_UART
+ strb w3, [x2]
+
+ /* clean up memory */
+ mov w3, #0
+ mov x4, x0
+clean:
+ strb w3, [x4]
+ add x4, x4, #TEST_MEM_PAGE_SIZE
+ cmp x4, x1
+ ble clean
+
+ /* w5 keeps a counter so we can limit the output speed */
+ mov w5, #0
+
+ /* main body */
+mainloop:
+ mov x4, x0
+
+innerloop:
+ /* clean cache because el2 might still cache guest data under KVM */
+ dc civac, x4
+
+ /* increment the first byte of each page by 1 */
+ ldrb w3, [x4]
+ add w3, w3, #1
+ and w3, w3, #0xff
+ strb w3, [x4]
+
+ add x4, x4, #TEST_MEM_PAGE_SIZE
+ cmp x4, x1
+ blt innerloop
+
+ add w5, w5, #1
+ and w5, w5, #0xff
+ cmp w5, #0
+ bne mainloop
+
+ /* output char 'B' to PL011 */
+ mov w3, 'B'
+ strb w3, [x2]
+
+ b mainloop
diff --git a/tests/migration/aarch64/a-b-kernel.h b/tests/migration/aarch64/a-b-kernel.h
new file mode 100644
index 0000000000..521125edd2
--- /dev/null
+++ b/tests/migration/aarch64/a-b-kernel.h
@@ -0,0 +1,19 @@
+/* This file is automatically generated from the assembly file in
+ * tests/migration/aarch64. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences in your patch submission.
+ */
+unsigned char aarch64_kernel[] = {
+ 0x00, 0x10, 0x38, 0xd5, 0x00, 0xf8, 0x7f, 0x92, 0x00, 0x10, 0x18, 0xd5,
+ 0xdf, 0x3f, 0x03, 0xd5, 0x00, 0x02, 0xa8, 0xd2, 0x01, 0xc8, 0xa8, 0xd2,
+ 0x23, 0x08, 0x80, 0x52, 0x02, 0x20, 0xa1, 0xd2, 0x43, 0x00, 0x00, 0x39,
+ 0x03, 0x00, 0x80, 0x52, 0xe4, 0x03, 0x00, 0xaa, 0x83, 0x00, 0x00, 0x39,
+ 0x84, 0x04, 0x40, 0x91, 0x9f, 0x00, 0x01, 0xeb, 0xad, 0xff, 0xff, 0x54,
+ 0x05, 0x00, 0x80, 0x52, 0xe4, 0x03, 0x00, 0xaa, 0x24, 0x7e, 0x0b, 0xd5,
+ 0x83, 0x00, 0x40, 0x39, 0x63, 0x04, 0x00, 0x11, 0x63, 0x1c, 0x00, 0x12,
+ 0x83, 0x00, 0x00, 0x39, 0x84, 0x04, 0x40, 0x91, 0x9f, 0x00, 0x01, 0xeb,
+ 0x2b, 0xff, 0xff, 0x54, 0xa5, 0x04, 0x00, 0x11, 0xa5, 0x1c, 0x00, 0x12,
+ 0xbf, 0x00, 0x00, 0x71, 0x81, 0xfe, 0xff, 0x54, 0x43, 0x08, 0x80, 0x52,
+ 0x43, 0x00, 0x00, 0x39, 0xf1, 0xff, 0xff, 0x17
+};
+
diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h
index c4c0c526b6..6939a134c2 100644
--- a/tests/migration/migration-test.h
+++ b/tests/migration/migration-test.h
@@ -18,4 +18,13 @@
#define PPC_TEST_MEM_START (1 * 1024 * 1024)
#define PPC_TEST_MEM_END (100 * 1024 * 1024)
+/* ARM */
+#define ARM_TEST_MEM_START (0x40000000 + 1 * 1024 * 1024)
+#define ARM_TEST_MEM_END (0x40000000 + 100 * 1024 * 1024)
+#define ARM_MACH_VIRT_UART 0x09000000
+/* AArch64 kernel load address is 0x40080000, and the test memory starts at
+ * 0x40100000. So the maximum allowable kernel size is 512KB.
+ */
+#define ARM_TEST_MAX_KERNEL_SIZE (512 * 1024)
+
#endif /* _TEST_MIGRATION_H_ */
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
` (10 preceding siblings ...)
2018-09-13 12:53 ` [Qemu-devel] [PULL 11/12] tests: Add migration test for aarch64 Juan Quintela
@ 2018-09-13 12:53 ` Juan Quintela
2018-09-13 15:03 ` Thomas Huth
11 siblings, 1 reply; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 12:53 UTC (permalink / raw)
To: qemu-devel; +Cc: dgilbert, lvivier, peterx, Thomas Huth
From: Thomas Huth <thuth@redhat.com>
We can re-use the s390-ccw bios code to implement a small firmware
for a s390x guest which prints out the "A" and "B" characters and
modifies the memory, as required for the migration test.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1535027120-26187-1-git-send-email-thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
- Updated to new cross compiler Makefile
- Rename s390x-a-b-elf to s390x-elf. This way it is consistent with
than aarch64
- Change generated comment
---
tests/Makefile.include | 1 +
tests/migration-test.c | 26 ++
tests/migration/Makefile | 2 +-
tests/migration/migration-test.h | 4 +
tests/migration/s390x/Makefile | 22 ++
tests/migration/s390x/a-b-bios.c | 35 +++
tests/migration/s390x/a-b-bios.h | 427 +++++++++++++++++++++++++++++++
7 files changed, 516 insertions(+), 1 deletion(-)
create mode 100644 tests/migration/s390x/Makefile
create mode 100644 tests/migration/s390x/a-b-bios.c
create mode 100644 tests/migration/s390x/a-b-bios.h
diff --git a/tests/Makefile.include b/tests/Makefile.include
index fab8fb9c27..bd38d14692 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -404,6 +404,7 @@ check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
check-qtest-s390x-y += tests/drive_del-test$(EXESUF)
check-qtest-s390x-y += tests/virtio-ccw-test$(EXESUF)
check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
+check-qtest-s390x-y += tests/migration-test$(EXESUF)
check-qtest-generic-y += tests/machine-none-test$(EXESUF)
check-qtest-generic-y += tests/qom-test$(EXESUF)
diff --git a/tests/migration-test.c b/tests/migration-test.c
index ecfae0be82..ab5b6af3f0 100644
--- a/tests/migration-test.c
+++ b/tests/migration-test.c
@@ -96,6 +96,18 @@ static void init_bootfile(const char *bootpath, void *content)
fclose(bootfile);
}
+#include "tests/migration/s390x/a-b-bios.h"
+
+static void init_bootfile_s390x(const char *bootpath)
+{
+ FILE *bootfile = fopen(bootpath, "wb");
+ size_t len = sizeof(s390x_elf);
+
+ g_assert_cmpint(fwrite(s390x_elf, len, 1, bootfile), ==, 1);
+ fclose(bootfile);
+}
+
+
/*
* Wait for some output in the serial output file,
* we get an 'A' followed by an endless string of 'B's
@@ -478,6 +490,20 @@ static int test_migrate_start(QTestState **from, QTestState **to,
end_address = ARM_TEST_MEM_END;
g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
+ } else if (g_str_equal(arch, "s390x")) {
+ init_bootfile_s390x(bootpath);
+ cmd_src = g_strdup_printf("-machine accel=%s -m 128M"
+ " -name source,debug-threads=on"
+ " -serial file:%s/src_serial -bios %s",
+ accel, tmpfs, bootpath);
+ cmd_dst = g_strdup_printf("-machine accel=%s -m 128M"
+ " -name target,debug-threads=on"
+ " -serial file:%s/dest_serial -bios %s"
+ " -incoming %s",
+ accel, tmpfs, bootpath, uri);
+
+ start_address = S390_TEST_MEM_START;
+ end_address = S390_TEST_MEM_END;
} else {
g_assert_not_reached();
}
diff --git a/tests/migration/Makefile b/tests/migration/Makefile
index 91237a84d9..ff726ed7dd 100644
--- a/tests/migration/Makefile
+++ b/tests/migration/Makefile
@@ -5,7 +5,7 @@
# See the COPYING file in the top-level directory.
#
-TARGET_LIST = i386 aarch64
+TARGET_LIST = i386 aarch64 s390x
SRC_PATH = ../..
diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h
index 6939a134c2..e6f7636567 100644
--- a/tests/migration/migration-test.h
+++ b/tests/migration/migration-test.h
@@ -27,4 +27,8 @@
*/
#define ARM_TEST_MAX_KERNEL_SIZE (512 * 1024)
+/* S390 */
+#define S390_TEST_MEM_START (1 * 1024 * 1024)
+#define S390_TEST_MEM_END (100 * 1024 * 1024)
+
#endif /* _TEST_MIGRATION_H_ */
diff --git a/tests/migration/s390x/Makefile b/tests/migration/s390x/Makefile
new file mode 100644
index 0000000000..f83ece21ff
--- /dev/null
+++ b/tests/migration/s390x/Makefile
@@ -0,0 +1,22 @@
+# To specify cross compiler prefix, use CROSS_PREFIX=
+# $ make CROSS_PREFIX=s390x-linux-gnu-
+
+.PHONY: all clean
+all: a-b-bios.h
+fwdir=../../../pc-bios/s390-ccw
+
+CFLAGS+=-ffreestanding -fno-delete-null-pointer-checks -fPIE -Os \
+ -msoft-float -march=z900 -fno-asynchronous-unwind-tables -Wl,-pie \
+ -Wl,--build-id=none -nostdlib
+
+a-b-bios.h: s390x.elf
+ echo "$$__note" > header.tmp
+ xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
+ mv header.tmp $@
+
+s390x.elf: a-b-bios.c
+ $(CROSS_PREFIX)gcc $(CFLAGS) -I$(fwdir) $(fwdir)/start.S \
+ $(fwdir)/sclp.c -o $@ $<
+
+clean:
+ @rm -rf *.elf *.o
diff --git a/tests/migration/s390x/a-b-bios.c b/tests/migration/s390x/a-b-bios.c
new file mode 100644
index 0000000000..1ae720bb69
--- /dev/null
+++ b/tests/migration/s390x/a-b-bios.c
@@ -0,0 +1,35 @@
+/*
+ * S390 guest code used in migration tests
+ *
+ * Copyright 2018 Thomas Huth, Red Hat Inc.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#define LOADPARM_LEN 8 /* Needed for sclp.h */
+
+#include <libc.h>
+#include <sclp.h>
+
+char stack[0x8000] __attribute__((aligned(4096)));
+
+#define START_ADDRESS (1024 * 1024)
+#define END_ADDRESS (100 * 1024 * 1024)
+
+void main(void)
+{
+ unsigned long addr;
+
+ sclp_setup();
+ sclp_print("A");
+
+ while (1) {
+ for (addr = START_ADDRESS; addr < END_ADDRESS; addr += 4096) {
+ *(volatile char *)addr += 1; /* Change pages */
+ }
+ sclp_print("B");
+ }
+}
diff --git a/tests/migration/s390x/a-b-bios.h b/tests/migration/s390x/a-b-bios.h
new file mode 100644
index 0000000000..57c603c320
--- /dev/null
+++ b/tests/migration/s390x/a-b-bios.h
@@ -0,0 +1,427 @@
+/* This file is automatically generated from the assembly file in
+ * tests/migration/s390x. Edit that file and then run "make all"
+ * inside tests/migration to update, and then remember to send both
+ * the header and the assembler differences in your patch submission.
+ */
+unsigned char s390x_elf[] = {
+ 0x7f, 0x45, 0x4c, 0x46, 0x02, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x16, 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x90, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0xa0,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x38, 0x00, 0x07, 0x00, 0x40,
+ 0x00, 0x0c, 0x00, 0x0b, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x05,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x88, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x01, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,
+ 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x01, 0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc8,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xc8, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01,
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+ 0x00, 0x00, 0x00, 0x4e, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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+ 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x03,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x45,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x57, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
--
2.17.1
^ permalink raw reply related [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too
2018-09-13 12:53 ` [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too Juan Quintela
@ 2018-09-13 15:03 ` Thomas Huth
2018-09-13 16:19 ` Juan Quintela
0 siblings, 1 reply; 15+ messages in thread
From: Thomas Huth @ 2018-09-13 15:03 UTC (permalink / raw)
To: Juan Quintela, qemu-devel; +Cc: lvivier, dgilbert, peterx
On 2018-09-13 14:53, Juan Quintela wrote:
> From: Thomas Huth <thuth@redhat.com>
>
> We can re-use the s390-ccw bios code to implement a small firmware
> for a s390x guest which prints out the "A" and "B" characters and
> modifies the memory, as required for the migration test.
>
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> Message-Id: <1535027120-26187-1-git-send-email-thuth@redhat.com>
> Reviewed-by: Juan Quintela <quintela@redhat.com>
> Acked-by: Cornelia Huck <cohuck@redhat.com>
> Signed-off-by: Juan Quintela <quintela@redhat.com>
>
> ---
>
> - Updated to new cross compiler Makefile
> - Rename s390x-a-b-elf to s390x-elf. This way it is consistent with
> than aarch64
> - Change generated comment
> ---
> tests/Makefile.include | 1 +
> tests/migration-test.c | 26 ++
> tests/migration/Makefile | 2 +-
> tests/migration/migration-test.h | 4 +
> tests/migration/s390x/Makefile | 22 ++
> tests/migration/s390x/a-b-bios.c | 35 +++
> tests/migration/s390x/a-b-bios.h | 427 +++++++++++++++++++++++++++++++
> 7 files changed, 516 insertions(+), 1 deletion(-)
> create mode 100644 tests/migration/s390x/Makefile
> create mode 100644 tests/migration/s390x/a-b-bios.c
> create mode 100644 tests/migration/s390x/a-b-bios.h
>
> diff --git a/tests/Makefile.include b/tests/Makefile.include
> index fab8fb9c27..bd38d14692 100644
> --- a/tests/Makefile.include
> +++ b/tests/Makefile.include
> @@ -404,6 +404,7 @@ check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
> check-qtest-s390x-y += tests/drive_del-test$(EXESUF)
> check-qtest-s390x-y += tests/virtio-ccw-test$(EXESUF)
> check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
> +check-qtest-s390x-y += tests/migration-test$(EXESUF)
>
> check-qtest-generic-y += tests/machine-none-test$(EXESUF)
> check-qtest-generic-y += tests/qom-test$(EXESUF)
> diff --git a/tests/migration-test.c b/tests/migration-test.c
> index ecfae0be82..ab5b6af3f0 100644
> --- a/tests/migration-test.c
> +++ b/tests/migration-test.c
> @@ -96,6 +96,18 @@ static void init_bootfile(const char *bootpath, void *content)
> fclose(bootfile);
> }
>
> +#include "tests/migration/s390x/a-b-bios.h"
> +
> +static void init_bootfile_s390x(const char *bootpath)
> +{
> + FILE *bootfile = fopen(bootpath, "wb");
> + size_t len = sizeof(s390x_elf);
> +
> + g_assert_cmpint(fwrite(s390x_elf, len, 1, bootfile), ==, 1);
> + fclose(bootfile);
> +}
> +
> +
> /*
> * Wait for some output in the serial output file,
> * we get an 'A' followed by an endless string of 'B's
> @@ -478,6 +490,20 @@ static int test_migrate_start(QTestState **from, QTestState **to,
> end_address = ARM_TEST_MEM_END;
>
> g_assert(sizeof(aarch64_kernel) <= ARM_TEST_MAX_KERNEL_SIZE);
> + } else if (g_str_equal(arch, "s390x")) {
> + init_bootfile_s390x(bootpath);
> + cmd_src = g_strdup_printf("-machine accel=%s -m 128M"
> + " -name source,debug-threads=on"
> + " -serial file:%s/src_serial -bios %s",
> + accel, tmpfs, bootpath);
> + cmd_dst = g_strdup_printf("-machine accel=%s -m 128M"
> + " -name target,debug-threads=on"
> + " -serial file:%s/dest_serial -bios %s"
> + " -incoming %s",
> + accel, tmpfs, bootpath, uri);
> +
> + start_address = S390_TEST_MEM_START;
> + end_address = S390_TEST_MEM_END;
> } else {
> g_assert_not_reached();
> }
> diff --git a/tests/migration/Makefile b/tests/migration/Makefile
> index 91237a84d9..ff726ed7dd 100644
> --- a/tests/migration/Makefile
> +++ b/tests/migration/Makefile
> @@ -5,7 +5,7 @@
> # See the COPYING file in the top-level directory.
> #
>
> -TARGET_LIST = i386 aarch64
> +TARGET_LIST = i386 aarch64 s390x
>
> SRC_PATH = ../..
>
> diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h
> index 6939a134c2..e6f7636567 100644
> --- a/tests/migration/migration-test.h
> +++ b/tests/migration/migration-test.h
> @@ -27,4 +27,8 @@
> */
> #define ARM_TEST_MAX_KERNEL_SIZE (512 * 1024)
>
> +/* S390 */
> +#define S390_TEST_MEM_START (1 * 1024 * 1024)
> +#define S390_TEST_MEM_END (100 * 1024 * 1024)
> +
> #endif /* _TEST_MIGRATION_H_ */
> diff --git a/tests/migration/s390x/Makefile b/tests/migration/s390x/Makefile
> new file mode 100644
> index 0000000000..f83ece21ff
> --- /dev/null
> +++ b/tests/migration/s390x/Makefile
> @@ -0,0 +1,22 @@
> +# To specify cross compiler prefix, use CROSS_PREFIX=
> +# $ make CROSS_PREFIX=s390x-linux-gnu-
> +
> +.PHONY: all clean
> +all: a-b-bios.h
> +fwdir=../../../pc-bios/s390-ccw
> +
> +CFLAGS+=-ffreestanding -fno-delete-null-pointer-checks -fPIE -Os \
> + -msoft-float -march=z900 -fno-asynchronous-unwind-tables -Wl,-pie \
> + -Wl,--build-id=none -nostdlib
> +
> +a-b-bios.h: s390x.elf
> + echo "$$__note" > header.tmp
> + xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
> + mv header.tmp $@
> +
> +s390x.elf: a-b-bios.c
> + $(CROSS_PREFIX)gcc $(CFLAGS) -I$(fwdir) $(fwdir)/start.S \
> + $(fwdir)/sclp.c -o $@ $<
Your modifications look basically fine to me, but please also strip the
binary after compiling it, so that the header will be quite a bit smaller.
Thanks,
Thomas
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too
2018-09-13 15:03 ` Thomas Huth
@ 2018-09-13 16:19 ` Juan Quintela
0 siblings, 0 replies; 15+ messages in thread
From: Juan Quintela @ 2018-09-13 16:19 UTC (permalink / raw)
To: Thomas Huth; +Cc: qemu-devel, lvivier, dgilbert, peterx
Thomas Huth <thuth@redhat.com> wrote:
> On 2018-09-13 14:53, Juan Quintela wrote:
>> From: Thomas Huth <thuth@redhat.com>
>>
>> We can re-use the s390-ccw bios code to implement a small firmware
>> for a s390x guest which prints out the "A" and "B" characters and
>> modifies the memory, as required for the migration test.
>>
>> Signed-off-by: Thomas Huth <thuth@redhat.com>
>> Message-Id: <1535027120-26187-1-git-send-email-thuth@redhat.com>
>> Reviewed-by: Juan Quintela <quintela@redhat.com>
>> Acked-by: Cornelia Huck <cohuck@redhat.com>
>> Signed-off-by: Juan Quintela <quintela@redhat.com>
>>
>> +a-b-bios.h: s390x.elf
>> + echo "$$__note" > header.tmp
>> + xxd -i $< | sed -e 's/.*int.*//' >> header.tmp
>> + mv header.tmp $@
>> +
>> +s390x.elf: a-b-bios.c
>> + $(CROSS_PREFIX)gcc $(CFLAGS) -I$(fwdir) $(fwdir)/start.S \
>> + $(fwdir)/sclp.c -o $@ $<
>
> Your modifications look basically fine to me, but please also strip the
> binary after compiling it, so that the header will be quite a bit smaller.
Oops, had it on the s390 and forgot to include it:
$(CROSS_PREFIX)strip --strip-unneded $@
Now sizes are similar.
Thanks, Juan.
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2018-09-13 16:19 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-09-13 12:53 [Qemu-devel] [PULL 00/12] Migration queue Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 01/12] migration/rdma: Fix uninitialised rdma_return_path Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 02/12] migration: fix calculating xbzrle_counters.cache_miss_rate Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 03/12] migration: handle the error condition properly Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 04/12] Add a hint message to loadvm and exits on failure Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 05/12] migration: do not flush_compressed_data at the end of iteration Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 06/12] migration: show the statistics of compression Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 07/12] migration: use save_page_use_compression in flush_compressed_data Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 08/12] tests/migration: Convert x86 boot block compilation script into Makefile Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 09/12] tests/migration: Support cross compilation in generating boot header file Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 10/12] tests/migration: Add migration-test " Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 11/12] tests: Add migration test for aarch64 Juan Quintela
2018-09-13 12:53 ` [Qemu-devel] [PULL 12/12] tests/migration: Enable the migration test on s390x, too Juan Quintela
2018-09-13 15:03 ` Thomas Huth
2018-09-13 16:19 ` Juan Quintela
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