Hi Bin,
-----Original Message----- From: Bin Meng [mailto:bmeng.cn@gmail.com] Sent: Sunday, August 25, 2019 9:47 PM To: Park, Aiden aiden.park@intel.com Cc: Andy Shevchenko andy.shevchenko@gmail.com; u-boot@lists.denx.de Subject: Re: [PATCH 1/1] doc: slimbootloader: Update Linux booting steps on QEMU
Hi Aiden,
On Mon, Aug 26, 2019 at 11:20 AM Park, Aiden aiden.park@intel.com wrote:
Hi Bin,
-----Original Message----- From: Bin Meng [mailto:bmeng.cn@gmail.com] Sent: Sunday, August 25, 2019 7:36 PM To: Park, Aiden aiden.park@intel.com Cc: Andy Shevchenko andy.shevchenko@gmail.com; u-boot@lists.denx.de Subject: Re: [PATCH 1/1] doc: slimbootloader: Update Linux booting steps on QEMU
Hi Aiden,
On Fri, Aug 23, 2019 at 5:31 AM Park, Aiden aiden.park@intel.com wrote:
Add steps to test Linux booting on QEMU with Yocto image.
Signed-off-by: Aiden Park aiden.park@intel.com
doc/board/intel/slimbootloader.rst | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/doc/board/intel/slimbootloader.rst b/doc/board/intel/slimbootloader.rst index 07c9b126f7..375e676804 100644 --- a/doc/board/intel/slimbootloader.rst +++ b/doc/board/intel/slimbootloader.rst @@ -86,6 +86,28 @@ The PayloadId can be any 4 Bytes value.
$ qemu-system-x86_64 -machine q35 -nographic -serial mon:stdio-pflash Outputs/qemu/SlimBootloader.bin
+Test Linux booting on QEMU target +---------------------------------
+Let's use LeafHill (APL) Yocto image for testing. +Download it from +http://downloads.yoctoproject.org/releases/yocto/yocto-
2.0/machines/leafhill/.
+1. Prepare Yocto hard disk image::
2.0/machines/leafhill/leafhill-4.0-jethro-2.0.tar.bz2
- $ tar -xvf leafhill-4.0-jethro-2.0.tar.bz2
- $ ls -l
- leafhill-4.0-jethro-2.0/binary/core-image-sato-intel-corei7-64.h
- ddim
- g
nits: this line is not necessary
This is just to show unzipped file path and make sure the file exists properly.
+2. Launch Slim Bootloader on QEMU with disk image::
- $ qemu-system-x86_64 -machine q35 -nographic -serial mon:stdio
- -pflash Outputs/qemu/SlimBootloader.bin -drive
- id=mydrive,if=none,file=/path/to/core-image-sato-intel-corei7-64
- .hdd img,format=raw -device ide-hd,drive=mydrive
+3. Update boot environment values on shell::
- => setenv bootfile vmlinuz
- => setenv bootdev scsi
- => boot
I followed all the instructions here, and I see the same problem as I reported before: Invalid Boot Flag.
=> setenv bootfile vmlinuz => setenv bootdev scsi => boot scanning bus for devices... SATA link 0 timeout. SATA link 1 timeout. SATA link 2 timeout. SATA link 3 timeout. SATA link 4 timeout. Target spinup took 0 ms. AHCI 0001.0000 32 slots 6 ports 1.5 Gbps 0x3f impl SATA mode flags: ncq only Error: Invalid Boot Flag (found 0x0000, expected 0xaa55)
This has a dependency on a patch - https://patchwork.ozlabs.org/patch/1150306/ which is still waiting to be applied.
Thanks, now I am able to boot the Yocto Linux kernel image.
Reviewed-by: Bin Meng bmeng.cn@gmail.com Tested-by: Bin Meng bmeng.cn@gmail.com
Thanks Bin for your testing.
However when testing, I noticed that SlimBootloader does not support multicore? If I passed "-smp 2" or "-smp 4" to QEMU, it failed to boot. Logs below:
MP Init (Wakeup) MP Init (Run) Detected 2 CPU threads CPU 0 APIC ID: 0 CPU 1 APIC ID: 1 PCI Enum Call FspNotifyPhase(20) ... Success ACPI Init Less MADT entries than Number of cores.. ACPI Ret: Out of Resources Error: Out of Resources
ACPI error ! STAGE_2: System halted!
We simply verified a single core system only with QEMU. Let me fix this MADT issue on Slim Bootloader side. Thanks a lot for bringing up this issue!
Regards, Bin
Best Regards, Aiden