[PATCH 0/3] tests/qtest/migration-test: Improve and enable on ppc64

[PATCH 0/3] tests/qtest/migration-test: Improve and enable on ppc64

[Nicholas Piggin]

ppc64 seems to be stable now, only problem is the speed, so I
rewrote the test to avoid SLOF and use special bios blob like
the other archs.

Thanks,
Nick

Nicholas Piggin (3):
  tests/qtest/migration-test: Quieten ppc64 QEMU warnigns
  tests/qtest/migration-test: Enable on ppc64
  tests/qtest/migration-test: Use custom asm bios for ppc64

 tests/migration/migration-test.h   |  1 +
 tests/migration/ppc64/a-b-kernel.h | 42 +++++++++++++++++++
 tests/qtest/migration-test.c       | 53 +++++-------------------
 tests/migration/Makefile           |  2 +-
 tests/migration/ppc64/Makefile     | 15 +++++++
 tests/migration/ppc64/a-b-kernel.S | 66 ++++++++++++++++++++++++++++++
 6 files changed, 135 insertions(+), 44 deletions(-)
 create mode 100644 tests/migration/ppc64/a-b-kernel.h
 create mode 100644 tests/migration/ppc64/Makefile
 create mode 100644 tests/migration/ppc64/a-b-kernel.S

-- 
2.43.0

[PATCH 1/3] tests/qtest/migration-test: Quieten ppc64 QEMU warnigns

[Nicholas Piggin]

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 tests/qtest/migration-test.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index b7e3406471..c13535c37d 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -21,6 +21,7 @@
 #include "chardev/char.h"
 #include "crypto/tlscredspsk.h"
 #include "qapi/qmp/qlist.h"
+#include "libqos/libqos-spapr.h"
 
 #include "migration-helpers.h"
 #include "tests/migration/migration-test.h"
@@ -742,7 +743,8 @@ static int test_migrate_start(QTestState **from, QTestState **to,
                                       "until'", end_address, start_address);
         machine_alias = "pseries";
         machine_opts = "vsmt=8";
-        arch_opts = g_strdup("-nodefaults");
+        arch_opts = g_strdup_printf("-nodefaults "
+                        "-machine " PSERIES_DEFAULT_CAPABILITIES);
     } else if (strcmp(arch, "aarch64") == 0) {
         memory_size = "150M";
         machine_alias = "virt";
-- 
2.43.0

Re: [PATCH 1/3] tests/qtest/migration-test: Quieten ppc64 QEMU warnigns

[Thomas Huth]

On 25/05/2024 05.13, Nicholas Piggin wrote:
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
>   tests/qtest/migration-test.c | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index b7e3406471..c13535c37d 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -21,6 +21,7 @@
>   #include "chardev/char.h"
>   #include "crypto/tlscredspsk.h"
>   #include "qapi/qmp/qlist.h"
> +#include "libqos/libqos-spapr.h"

It's a little bit unfortunate to include a libqos header in a non-qos test 
... so in case you respin, maybe add a comment at the end of the line like:

   /* just for PSERIES_DEFAULT_CAPABILITIES */

?

>   #include "migration-helpers.h"
>   #include "tests/migration/migration-test.h"
> @@ -742,7 +743,8 @@ static int test_migrate_start(QTestState **from, QTestState **to,
>                                         "until'", end_address, start_address);
>           machine_alias = "pseries";
>           machine_opts = "vsmt=8";
> -        arch_opts = g_strdup("-nodefaults");
> +        arch_opts = g_strdup_printf("-nodefaults "
> +                        "-machine " PSERIES_DEFAULT_CAPABILITIES);
>       } else if (strcmp(arch, "aarch64") == 0) {
>           memory_size = "150M";
>           machine_alias = "virt";

  Reviewed-by: Thomas Huth <thuth@redhat.com>

Re: [PATCH 1/3] tests/qtest/migration-test: Quieten ppc64 QEMU warnigns

[Nicholas Piggin]

On Mon May 27, 2024 at 5:32 PM AEST, Thomas Huth wrote:
> On 25/05/2024 05.13, Nicholas Piggin wrote:
> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> > ---
> >   tests/qtest/migration-test.c | 4 +++-
> >   1 file changed, 3 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> > index b7e3406471..c13535c37d 100644
> > --- a/tests/qtest/migration-test.c
> > +++ b/tests/qtest/migration-test.c
> > @@ -21,6 +21,7 @@
> >   #include "chardev/char.h"
> >   #include "crypto/tlscredspsk.h"
> >   #include "qapi/qmp/qlist.h"
> > +#include "libqos/libqos-spapr.h"
>
> It's a little bit unfortunate to include a libqos header in a non-qos test 
> ... so in case you respin, maybe add a comment at the end of the line like:
>
>    /* just for PSERIES_DEFAULT_CAPABILITIES */
>
> ?

Same as other uses of it by the looks. Could just put it in a new
header in tests/qtest/ppc-util.h or something?

Thanks,
Nick

>
> >   #include "migration-helpers.h"
> >   #include "tests/migration/migration-test.h"
> > @@ -742,7 +743,8 @@ static int test_migrate_start(QTestState **from, QTestState **to,
> >                                         "until'", end_address, start_address);
> >           machine_alias = "pseries";
> >           machine_opts = "vsmt=8";
> > -        arch_opts = g_strdup("-nodefaults");
> > +        arch_opts = g_strdup_printf("-nodefaults "
> > +                        "-machine " PSERIES_DEFAULT_CAPABILITIES);
> >       } else if (strcmp(arch, "aarch64") == 0) {
> >           memory_size = "150M";
> >           machine_alias = "virt";
>
>   Reviewed-by: Thomas Huth <thuth@redhat.com>

Re: [PATCH 1/3] tests/qtest/migration-test: Quieten ppc64 QEMU warnigns

[Thomas Huth]

On 27/05/2024 13.26, Nicholas Piggin wrote:
> On Mon May 27, 2024 at 5:32 PM AEST, Thomas Huth wrote:
>> On 25/05/2024 05.13, Nicholas Piggin wrote:
>>> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
>>> ---
>>>    tests/qtest/migration-test.c | 4 +++-
>>>    1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
>>> index b7e3406471..c13535c37d 100644
>>> --- a/tests/qtest/migration-test.c
>>> +++ b/tests/qtest/migration-test.c
>>> @@ -21,6 +21,7 @@
>>>    #include "chardev/char.h"
>>>    #include "crypto/tlscredspsk.h"
>>>    #include "qapi/qmp/qlist.h"
>>> +#include "libqos/libqos-spapr.h"
>>
>> It's a little bit unfortunate to include a libqos header in a non-qos test
>> ... so in case you respin, maybe add a comment at the end of the line like:
>>
>>     /* just for PSERIES_DEFAULT_CAPABILITIES */
>>
>> ?
> 
> Same as other uses of it by the looks. Could just put it in a new
> header in tests/qtest/ppc-util.h or something?

Yes, that would be cleaner, indeed.

  Thanks,
   Thomas

[PATCH 2/3] tests/qtest/migration-test: Enable on ppc64

[Nicholas Piggin]

ppc64 with TCG seems to no longer be failing this test. Let's try to
enable it. s390x is still hanging about 1 in 10 runs.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 tests/qtest/migration-test.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index c13535c37d..b8617cc843 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -3454,19 +3454,9 @@ int main(int argc, char **argv)
 #endif
 
     /*
-     * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
-     * is touchy due to race conditions on dirty bits (especially on PPC for
-     * some reason)
-     */
-    if (g_str_equal(arch, "ppc64") &&
-        (!has_kvm || access("/sys/module/kvm_hv", F_OK))) {
-        g_test_message("Skipping tests: kvm_hv not available");
-        goto test_add_done;
-    }
-
-    /*
-     * Similar to ppc64, s390x seems to be touchy with TCG, so disable it
-     * there until the problems are resolved
+     * On s390x, the test seems to be touchy with TCG, perhaps due to race
+     * conditions on dirty bits, so disable it there until the problems are
+     * resolved.
      */
     if (g_str_equal(arch, "s390x") && !has_kvm) {
         g_test_message("Skipping tests: s390x host with KVM is required");
-- 
2.43.0

Re: [PATCH 2/3] tests/qtest/migration-test: Enable on ppc64

[Thomas Huth]

On 25/05/2024 05.13, Nicholas Piggin wrote:
> ppc64 with TCG seems to no longer be failing this test. Let's try to
> enable it. s390x is still hanging about 1 in 10 runs.
> 
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> ---
>   tests/qtest/migration-test.c | 16 +++-------------
>   1 file changed, 3 insertions(+), 13 deletions(-)
> 
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index c13535c37d..b8617cc843 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -3454,19 +3454,9 @@ int main(int argc, char **argv)
>   #endif
>   
>       /*
> -     * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
> -     * is touchy due to race conditions on dirty bits (especially on PPC for
> -     * some reason)
> -     */
> -    if (g_str_equal(arch, "ppc64") &&
> -        (!has_kvm || access("/sys/module/kvm_hv", F_OK))) {
> -        g_test_message("Skipping tests: kvm_hv not available");
> -        goto test_add_done;
> -    }
> -
> -    /*
> -     * Similar to ppc64, s390x seems to be touchy with TCG, so disable it
> -     * there until the problems are resolved
> +     * On s390x, the test seems to be touchy with TCG, perhaps due to race
> +     * conditions on dirty bits, so disable it there until the problems are
> +     * resolved.
>        */
>       if (g_str_equal(arch, "s390x") && !has_kvm) {
>           g_test_message("Skipping tests: s390x host with KVM is required");

Since you've identified the problem on s390x, you could maybe adjust the 
comment in case you respin ... OTOH, it will get removed anyway once we 
merge the s390x fix, so no need to respin just because of this.

Reviewed-by: Thomas Huth <thuth@redhat.com>

Re: [PATCH 2/3] tests/qtest/migration-test: Enable on ppc64

[Nicholas Piggin]

On Mon May 27, 2024 at 5:35 PM AEST, Thomas Huth wrote:
> On 25/05/2024 05.13, Nicholas Piggin wrote:
> > ppc64 with TCG seems to no longer be failing this test. Let's try to
> > enable it. s390x is still hanging about 1 in 10 runs.
> > 
> > Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
> > ---
> >   tests/qtest/migration-test.c | 16 +++-------------
> >   1 file changed, 3 insertions(+), 13 deletions(-)
> > 
> > diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> > index c13535c37d..b8617cc843 100644
> > --- a/tests/qtest/migration-test.c
> > +++ b/tests/qtest/migration-test.c
> > @@ -3454,19 +3454,9 @@ int main(int argc, char **argv)
> >   #endif
> >   
> >       /*
> > -     * On ppc64, the test only works with kvm-hv, but not with kvm-pr and TCG
> > -     * is touchy due to race conditions on dirty bits (especially on PPC for
> > -     * some reason)
> > -     */
> > -    if (g_str_equal(arch, "ppc64") &&
> > -        (!has_kvm || access("/sys/module/kvm_hv", F_OK))) {
> > -        g_test_message("Skipping tests: kvm_hv not available");
> > -        goto test_add_done;
> > -    }
> > -
> > -    /*
> > -     * Similar to ppc64, s390x seems to be touchy with TCG, so disable it
> > -     * there until the problems are resolved
> > +     * On s390x, the test seems to be touchy with TCG, perhaps due to race
> > +     * conditions on dirty bits, so disable it there until the problems are
> > +     * resolved.
> >        */
> >       if (g_str_equal(arch, "s390x") && !has_kvm) {
> >           g_test_message("Skipping tests: s390x host with KVM is required");
>
> Since you've identified the problem on s390x, you could maybe adjust the 
> comment in case you respin ... OTOH, it will get removed anyway once we 
> merge the s390x fix, so no need to respin just because of this.
>
> Reviewed-by: Thomas Huth <thuth@redhat.com>

Thanks. I will respin to at least fix the subjet "Enable on ppc64 TCG"
so I can do the other minor things too.

Thanks,
Nick

[PATCH 3/3] tests/qtest/migration-test: Use custom asm bios for ppc64

[Nicholas Piggin]

Similar to other archs, build a custom bios memory updater. Running the
test with OF code is a cool trick, but SLOF takes a long time to boot.
This reduces test time by around 3x (150s to 50s).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 tests/migration/migration-test.h   |  1 +
 tests/migration/ppc64/a-b-kernel.h | 42 +++++++++++++++++++
 tests/qtest/migration-test.c       | 35 +++-------------
 tests/migration/Makefile           |  2 +-
 tests/migration/ppc64/Makefile     | 15 +++++++
 tests/migration/ppc64/a-b-kernel.S | 66 ++++++++++++++++++++++++++++++
 6 files changed, 130 insertions(+), 31 deletions(-)
 create mode 100644 tests/migration/ppc64/a-b-kernel.h
 create mode 100644 tests/migration/ppc64/Makefile
 create mode 100644 tests/migration/ppc64/a-b-kernel.S

diff --git a/tests/migration/migration-test.h b/tests/migration/migration-test.h
index 68512c0b1b..194df7df6f 100644
--- a/tests/migration/migration-test.h
+++ b/tests/migration/migration-test.h
@@ -22,6 +22,7 @@
 /* PPC */
 #define PPC_TEST_MEM_START (1 * 1024 * 1024)
 #define PPC_TEST_MEM_END   (100 * 1024 * 1024)
+#define PPC_H_PUT_TERM_CHAR 0x58
 
 /* ARM */
 #define ARM_TEST_MEM_START (0x40000000 + 1 * 1024 * 1024)
diff --git a/tests/migration/ppc64/a-b-kernel.h b/tests/migration/ppc64/a-b-kernel.h
new file mode 100644
index 0000000000..673317efdb
--- /dev/null
+++ b/tests/migration/ppc64/a-b-kernel.h
@@ -0,0 +1,42 @@
+/* This file is automatically generated from the assembly file in
+ * tests/migration/ppc64. 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 ppc64_kernel[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x00, 0x00, 0x00, 0x7d, 0x20, 0x00, 0xa6, 0x39, 0x40, 0xff, 0xff,
+  0x79, 0x49, 0xf8, 0x0e, 0x7d, 0x20, 0x01, 0x64, 0x3e, 0x80, 0x00, 0x10,
+  0x62, 0x94, 0x00, 0x00, 0x3d, 0x20, 0x06, 0x40, 0x61, 0x29, 0x00, 0x00,
+  0x7e, 0xb4, 0x48, 0x50, 0x39, 0x40, 0x10, 0x00, 0x7e, 0xb5, 0x53, 0xd2,
+  0x38, 0x60, 0x00, 0x58, 0x38, 0x80, 0x00, 0x00, 0x38, 0xa0, 0x00, 0x01,
+  0x38, 0xc0, 0x00, 0x41, 0x78, 0xc6, 0xc1, 0xc6, 0x44, 0x00, 0x00, 0x22,
+  0x38, 0x60, 0x00, 0x00, 0x7e, 0x89, 0xa3, 0x78, 0x7e, 0xa9, 0x03, 0xa6,
+  0x98, 0x69, 0x00, 0x00, 0x39, 0x29, 0x10, 0x00, 0x42, 0x00, 0xff, 0xf8,
+  0x7e, 0x89, 0xa3, 0x78, 0x7e, 0xa9, 0x03, 0xa6, 0x88, 0x69, 0x00, 0x00,
+  0x38, 0x63, 0x00, 0x01, 0x98, 0x69, 0x00, 0x00, 0x39, 0x29, 0x10, 0x00,
+  0x42, 0x00, 0xff, 0xf0, 0x38, 0x60, 0x00, 0x58, 0x38, 0x80, 0x00, 0x00,
+  0x38, 0xa0, 0x00, 0x01, 0x38, 0xc0, 0x00, 0x42, 0x78, 0xc6, 0xc1, 0xc6,
+  0x44, 0x00, 0x00, 0x22, 0x4b, 0xff, 0xff, 0xcc
+};
+
diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
index b8617cc843..94d5057857 100644
--- a/tests/qtest/migration-test.c
+++ b/tests/qtest/migration-test.c
@@ -128,6 +128,7 @@ static char *bootpath;
  */
 #include "tests/migration/i386/a-b-bootblock.h"
 #include "tests/migration/aarch64/a-b-kernel.h"
+#include "tests/migration/ppc64/a-b-kernel.h"
 #include "tests/migration/s390x/a-b-bios.h"
 
 static void bootfile_create(char *dir, bool suspend_me)
@@ -147,10 +148,8 @@ static void bootfile_create(char *dir, bool suspend_me)
         content = s390x_elf;
         len = sizeof(s390x_elf);
     } else if (strcmp(arch, "ppc64") == 0) {
-        /*
-         * sane architectures can be programmed at the boot prompt
-         */
-        return;
+        content = ppc64_kernel;
+        len = sizeof(ppc64_kernel);
     } else if (strcmp(arch, "aarch64") == 0) {
         content = aarch64_kernel;
         len = sizeof(aarch64_kernel);
@@ -181,29 +180,10 @@ static void wait_for_serial(const char *side)
 {
     g_autofree char *serialpath = g_strdup_printf("%s/%s", tmpfs, side);
     FILE *serialfile = fopen(serialpath, "r");
-    const char *arch = qtest_get_arch();
-    int started = (strcmp(side, "src_serial") == 0 &&
-                   strcmp(arch, "ppc64") == 0) ? 0 : 1;
 
     do {
         int readvalue = fgetc(serialfile);
 
-        if (!started) {
-            /* SLOF prints its banner before starting test,
-             * to ignore it, mark the start of the test with '_',
-             * ignore all characters until this marker
-             */
-            switch (readvalue) {
-            case '_':
-                started = 1;
-                break;
-            case EOF:
-                fseek(serialfile, 0, SEEK_SET);
-                usleep(1000);
-                break;
-            }
-            continue;
-        }
         switch (readvalue) {
         case 'A':
             /* Fine */
@@ -215,8 +195,6 @@ static void wait_for_serial(const char *side)
             return;
 
         case EOF:
-            started = (strcmp(side, "src_serial") == 0 &&
-                       strcmp(arch, "ppc64") == 0) ? 0 : 1;
             fseek(serialfile, 0, SEEK_SET);
             usleep(1000);
             break;
@@ -737,14 +715,11 @@ static int test_migrate_start(QTestState **from, QTestState **to,
         memory_size = "256M";
         start_address = PPC_TEST_MEM_START;
         end_address = PPC_TEST_MEM_END;
-        arch_source = g_strdup_printf("-prom-env 'use-nvramrc?=true' -prom-env "
-                                      "'nvramrc=hex .\" _\" begin %x %x "
-                                      "do i c@ 1 + i c! 1000 +loop .\" B\" 0 "
-                                      "until'", end_address, start_address);
         machine_alias = "pseries";
         machine_opts = "vsmt=8";
         arch_opts = g_strdup_printf("-nodefaults "
-                        "-machine " PSERIES_DEFAULT_CAPABILITIES);
+                        "-machine " PSERIES_DEFAULT_CAPABILITIES " "
+                        "-bios %s", bootpath);
     } else if (strcmp(arch, "aarch64") == 0) {
         memory_size = "150M";
         machine_alias = "virt";
diff --git a/tests/migration/Makefile b/tests/migration/Makefile
index 13e99b1692..2c5ee287ec 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 s390x
+TARGET_LIST = i386 aarch64 s390x ppc64
 
 SRC_PATH = ../..
 
diff --git a/tests/migration/ppc64/Makefile b/tests/migration/ppc64/Makefile
new file mode 100644
index 0000000000..a3a2d98ac8
--- /dev/null
+++ b/tests/migration/ppc64/Makefile
@@ -0,0 +1,15 @@
+.PHONY: all clean
+all: a-b-kernel.h
+
+a-b-kernel.h: ppc64.kernel
+	echo "$$__note" > $@
+	xxd -i $< | sed -e 's/.*int.*//' >> $@
+
+ppc64.kernel: ppc64.elf
+	$(CROSS_PREFIX)objcopy -O binary -S $< $@
+
+ppc64.elf: a-b-kernel.S
+	$(CROSS_PREFIX)gcc -static -o $@ -nostdlib -Wl,--build-id=none $<
+
+clean:
+	$(RM) *.kernel *.elf
diff --git a/tests/migration/ppc64/a-b-kernel.S b/tests/migration/ppc64/a-b-kernel.S
new file mode 100644
index 0000000000..0613a8d18e
--- /dev/null
+++ b/tests/migration/ppc64/a-b-kernel.S
@@ -0,0 +1,66 @@
+#
+# Copyright (c) 2024 IBM, Inc
+#
+# 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 "../migration-test.h"
+
+.section .text
+
+.macro print ch
+	li	%r3,PPC_H_PUT_TERM_CHAR
+	li	%r4,0
+	li	%r5,1
+	li	%r6,\ch
+	sldi	%r6,%r6,56
+	sc	1
+.endm
+
+        .globl  _start
+_start:
+. = 0x100
+	/*
+	 * Enter 64-bit mode. Not necessary because the test uses 32-bit
+	 * addresses, but those constants could easily be changed and break
+	 * in 32-bit mode.
+	 */
+	mfmsr	%r9
+	li	%r10,-1
+	rldimi	%r9,%r10,63,0
+	mtmsrd	%r9
+
+        /*
+	 * Set up test memory region. Non-volatiles are used because the
+	 * hcall can clobber regs.
+	 * r20 - start address
+	 * r21 - number of pages
+	 */
+	lis	%r20,PPC_TEST_MEM_START@h
+	ori	%r20,%r20,PPC_TEST_MEM_START@l
+	lis	%r9,PPC_TEST_MEM_END@h
+	ori	%r9,%r9,PPC_TEST_MEM_END@l
+	subf	%r21,%r20,%r9
+	li	%r10,TEST_MEM_PAGE_SIZE
+	divd	%r21,%r21,%r10
+
+	print	'A'
+
+	li	%r3,0
+	mr	%r9,%r20
+	mtctr	%r21
+1:	stb	%r3,0(%r9)
+	addi	%r9,%r9,TEST_MEM_PAGE_SIZE
+	bdnz	1b
+
+loop:
+	mr	%r9,%r20
+	mtctr	%r21
+1:	lbz	%r3,0(%r9)
+	addi	%r3,%r3,1
+	stb	%r3,0(%r9)
+	addi	%r9,%r9,TEST_MEM_PAGE_SIZE
+	bdnz	1b
+
+	print	'B'
+	b	loop
-- 
2.43.0

Re: [PATCH 3/3] tests/qtest/migration-test: Use custom asm bios for ppc64

[Fabiano Rosas]

Nicholas Piggin <npiggin@gmail.com> writes:

> Similar to other archs, build a custom bios memory updater. Running the
> test with OF code is a cool trick, but SLOF takes a long time to boot.
> This reduces test time by around 3x (150s to 50s).
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>

Reviewed-by: Fabiano Rosas <farosas@suse.de>