[PATCH v2 0/2] tests/avocado: Truncate M2S-FG484 SOM SPI flash to 16MiB

[PATCH v2 0/2] tests/avocado: Truncate M2S-FG484 SOM SPI flash to 16MiB

[Philippe Mathieu-Daudé]

The M2S-FG484 SOM SPI flash is 16MiB. Truncate the file
provided with the Avocado test to avoid:

 qemu-system-arm: device requires 16777216 bytes, block backend provides 67108864 bytes

before merging the "m25p80: Improve error when the backend
file size does not match the device" patch:
https://lore.kernel.org/qemu-devel/20230119123449.531826-2-clg@kaod.org/

Since v1:
- add missing 'size' argument in file_truncate (Cédric)

Philippe Mathieu-Daudé (2):
  tests/avocado: Factor file_truncate() helper out
  tests/avocado: Truncate M2S-FG484 SOM SPI flash to 16MiB

 hw/arm/msf2-som.c                   |  5 ++++-
 tests/avocado/boot_linux_console.py | 15 +++++++++------
 2 files changed, 13 insertions(+), 7 deletions(-)

-- 
2.38.1

[PATCH v2 1/2] tests/avocado: Factor file_truncate() helper out

[Philippe Mathieu-Daudé]

Factor file_truncate() helper out of image_pow2ceil_expand()
for reuse.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 tests/avocado/boot_linux_console.py | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/tests/avocado/boot_linux_console.py b/tests/avocado/boot_linux_console.py
index 8c1d981586..8a598be966 100644
--- a/tests/avocado/boot_linux_console.py
+++ b/tests/avocado/boot_linux_console.py
@@ -30,15 +30,16 @@
 def pow2ceil(x):
     return 1 if x == 0 else 2**(x - 1).bit_length()
 
+def file_truncate(path, size):
+    if size != os.path.getsize(path):
+        with open(path, 'ab+') as fd:
+            fd.truncate(size)
+
 """
 Expand file size to next power of 2
 """
-def image_pow2ceil_expand(path):
-        size = os.path.getsize(path)
-        size_aligned = pow2ceil(size)
-        if size != size_aligned:
-            with open(path, 'ab+') as fd:
-                fd.truncate(size_aligned)
+def image_pow2ceil_expand(path, size):
+    file_truncate(path, pow2ceil(size))
 
 class LinuxKernelTest(QemuSystemTest):
     KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
-- 
2.38.1

[PATCH v2 2/2] tests/avocado: Truncate M2S-FG484 SOM SPI flash to 16MiB

[Philippe Mathieu-Daudé]

The M2S-FG484 SOM uses a 16 MiB SPI flash (Spansion
S25FL128SDPBHICO).  Since the test asset is bigger,
truncate it to the correct size to avoid when running
the test_arm_emcraft_sf2 test:

  qemu-system-arm: device requires 16777216 bytes, block backend provides 67108864 bytes

Add comment regarding the M2S-FG484 SOM hardware in
hw/arm/msf2-som.c.

Reported-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Cédric Le Goater <clg@kaod.org>
---
 hw/arm/msf2-som.c                   | 5 ++++-
 tests/avocado/boot_linux_console.py | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/hw/arm/msf2-som.c b/hw/arm/msf2-som.c
index a6df473ec9..7b3106c790 100644
--- a/hw/arm/msf2-som.c
+++ b/hw/arm/msf2-som.c
@@ -1,6 +1,9 @@
 /*
  * SmartFusion2 SOM starter kit(from Emcraft) emulation.
  *
+ * M2S-FG484 SOM hardware architecture specification:
+ *   https://www.emcraft.com/jdownloads/som/m2s/m2s-som-ha.pdf
+ *
  * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
@@ -87,7 +90,7 @@ static void emcraft_sf2_s2s010_init(MachineState *machine)
 
     /* Attach SPI flash to SPI0 controller */
     spi_bus = qdev_get_child_bus(dev, "spi0");
-    spi_flash = qdev_new("s25sl12801");
+    spi_flash = qdev_new("s25sl12801"); /* Spansion S25FL128SDPBHICO */
     qdev_prop_set_uint8(spi_flash, "spansion-cr2nv", 1);
     if (dinfo) {
         qdev_prop_set_drive_err(spi_flash, "drive",
diff --git a/tests/avocado/boot_linux_console.py b/tests/avocado/boot_linux_console.py
index 8a598be966..9f5077c791 100644
--- a/tests/avocado/boot_linux_console.py
+++ b/tests/avocado/boot_linux_console.py
@@ -396,6 +396,8 @@ def test_arm_emcraft_sf2(self):
         spi_hash = '65523a1835949b6f4553be96dec1b6a38fb05501'
         spi_path = self.fetch_asset(spi_url, asset_hash=spi_hash)
 
+        file_truncate(spi_path, 16 << 20) # Spansion S25FL128SDPBHICO is 16 MiB
+
         self.vm.set_console()
         kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE
         self.vm.add_args('-kernel', uboot_path,
-- 
2.38.1

Re: [PATCH v2 1/2] tests/avocado: Factor file_truncate() helper out

[Cédric Le Goater]

On 1/20/23 14:43, Philippe Mathieu-Daudé wrote:
> Factor file_truncate() helper out of image_pow2ceil_expand()
> for reuse.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   tests/avocado/boot_linux_console.py | 13 +++++++------
>   1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/tests/avocado/boot_linux_console.py b/tests/avocado/boot_linux_console.py
> index 8c1d981586..8a598be966 100644
> --- a/tests/avocado/boot_linux_console.py
> +++ b/tests/avocado/boot_linux_console.py
> @@ -30,15 +30,16 @@
>   def pow2ceil(x):
>       return 1 if x == 0 else 2**(x - 1).bit_length()
>   
> +def file_truncate(path, size):
> +    if size != os.path.getsize(path):
> +        with open(path, 'ab+') as fd:
> +            fd.truncate(size)
> +
>   """
>   Expand file size to next power of 2
>   """
> -def image_pow2ceil_expand(path):
> -        size = os.path.getsize(path)
> -        size_aligned = pow2ceil(size)
> -        if size != size_aligned:
> -            with open(path, 'ab+') as fd:
> -                fd.truncate(size_aligned)
> +def image_pow2ceil_expand(path, size):

The image_pow2ceil_expand() callers should be changed to add 'size' argument.

C.


> +    file_truncate(path, pow2ceil(size))
>   
>   class LinuxKernelTest(QemuSystemTest):
>       KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '