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ASN(0.00)[asn:8075, ipnet:52.96.0.0/12, country:US]; ARC_ALLOW(-1.00)[microsoft.com:s=arcselector9901:i=1]; WHITELIST_SPF_DKIM(-3.00)[microsoft.com:d:+,microsoft.com:s:+] X-ThisMailContainsUnwantedMimeParts: N --_000_PSAP153MB0536E7F2B5A8DBF521E306E5CCDF9PSAP153MB0536APCP_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Hi Warner, Thanks for pointing boot_multicons, and yes it has solved the problem of Fr= eeBSD kernel boot logs not coming in Putty in both x86 and arm64. Regarding FreeBSD 13, yes loader.efi logs are not coming in Putty mostly b= ecause of EFI gfx usage which is not supported in Putty. Now we can overcome it in x86 by setting set console=3D=94comconsole=94, as= it is using the different uart implementation of comconsole of loader, which is not the same in arm64= . The implementation of comconsole in arm64 loader.efi is not supported in Hyper-V looks like. A= s Hyper-V only supports ttyAMA0 for serial console in ARM64 but supports uart in x86. Regarding ConOut, I have got it from x86 FreeBSD13, (as arm64 is in the pro= cess of bringing up and ConOut is same for arm64 and x86, confirmed by using efishell binary and Li= nux shell). efivar --device-path 8be4df61-93ca-11d2-aa0d-00e098032b8c-ConOut 8be4df61-93ca-11d2-aa0d-00e098032b8c-ConOut : AcpiEx(VMBus,,)/VenHw(9b17e5a2-0891-42dd-b653-80b5c22809ba,02780ada77e3ac= 4a8e770558eb1073f8c7e020566280ce4daeb7520c7ef76171) On Mon, May 30, 2022, 3:31 AM Souradeep Chakrabarti wrote: >>Hi, >>I am trying to access virtual serial console via Putty and in 13.0 it is = not working >>for both x86 and arm64. >> >>It is very easy to reproduce: >>1) In Windows Hyper-V set a FreeBSD 13.0 VM >>2) Use Powershell in Admin privileged mode and run following: >> Set-VMComPort -VMName -number 1 -path \\.\pipe\= Testpipe >>2) In another Powershell with Admin privilege run following: >>3) start the VM and open putty to connect the \\.\pipe\Testpipe in serial= mode. >>No output will be seen on putty. >Not even from the boot loader? That sure sounds like the automatic fallbac= k to simple text output isn't happening. > >What does: >% sudo efivar --device-path 8be4df61-93ca-11d2-aa0d-00e098032b8c-ConOut >tell you? (Or run as root if you don't like sudo). > >The boot loader grew a non-optional graphics mode that's disabled when the= boot code >detects we're talking to a 'serial port' between 12.x and 13.x. If you are= getting no output >from the loader at all, I suspect this is likely to blame. >But the same works in FreeBSD 12.3 and Putty gets the output from EFI load= er for both x86 and arm64. >But during kernel booting the console output does not come in Putty, it on= ly comes in vmconnect.exe. > >So on 12.3, kernel output doesn't come out of both? Do you have boot_multi= cons=3DYES in your loader.conf? >If not, only one of the consoles will get output from the kernel. > >Warner >>Like below : >> >>Loading kernel... >>/boot/kernel/kernel text=3D0x931f24 data=3D0x187450 data=3D0x0+0x2d095e s= yms=3D[0x8+0x138120+0x8+0x124824] >>Loading configured modules... >>can't find '/boot/entropy' >>can't find '/etc/hostid' >>No valid device tree blob found! >>WARNING! Trying to fire up the kernel, but no device tree blob found! >>EFI framebuffer information: >>addr, size 0xe0000000, 0x800000 >>dimensions 1024 x 768 >>stride 1024 >>masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 <<<< >> >>After this log is not coming in Putty in 12.3 for both x86 and arm64. Thanks & Regards, Souradeep --_000_PSAP153MB0536E7F2B5A8DBF521E306E5CCDF9PSAP153MB0536APCP_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Hi Warner,

Thanks for pointing boot_multicons, and yes it has solved the problem = of FreeBSD kernel boot logs

not coming in Putty in both x86 and arm64.

Regarding FreeBSD 13,  yes loader.efi logs are not coming in Putt= y mostly because of EFI gfx usage

which is not supported in Putty.

Now we can overcome it in x86 by setting set console=3D=94comconsole= =94, as it is using the different

uart implementation of comconsole of loader, which is not the same in = arm64. The implementation

of comconsole in arm64 loader.efi is not supported in Hyper-V looks li= ke. As Hyper-V only supports

ttyAMA0 for serial console in ARM64 but supports uart in x86.

 
Regarding ConOut, I have got it from x86 FreeBSD13, (as arm64 is in th= e process of bringing up and

ConOut is same for arm64 and x86, confirmed by using efishell binary a= nd Linux shell).


efivar --device-path 8be4df61-93ca-11d2-aa0d-00e098032b8c-ConOut

8be4df61-93ca-11d2-aa0d-00e098032b8c-ConOut

: AcpiEx(VMBus,,)/VenHw(9b17e5a2-0891-42dd-b653-80b5c22809ba,02780ada7= 7e3ac4a8e770558eb1073f8c7e020566280ce4daeb7520c7ef76171)

 
On Mon, May 30, 2022, 3:31 AM Souradeep Chakrabarti <schakrabarti@micros= oft.com> wrote:

>>Hi,

>>I am trying to access virtual serial console via Putty and in = 13.0 it is not working

>>for both x86 and arm64.

>>

>>It is very easy to reproduce:

>>1) In Windows Hyper-V set a  FreeBSD 13.0 VM

>>2) Use Powershell in Admin privileged mode and run following:<= /div>

>>                Set-VM= ComPort -VMName <vm_name> -number 1 -path \\.\pipe\Testpipe

>>2) In another Powershell with Admin privilege run following:

>>3) start the VM and open putty to connect the \\.\pipe\Testpip= e in serial mode.

>>No output will be seen on putty.

>Not even from the boot loader? That sure sounds like the automatic= fallback to simple text output isn't happening.

>

>What does:

>% sudo efivar --device-path 8be4df61-93ca-11d2-aa0d-00e098032b8c-C= onOut

>tell you? (Or run as root if you don't like sudo).

>

>The boot loader grew a non-optional graphics mode that's disabled = when the boot code

>detects we're talking to a 'serial port' between 12.x and 13.x. If= you are getting no output

>from the loader at all, I suspect this is likely to blame.

>But the same works in FreeBSD 12.3 and Putty gets the output from = EFI loader for both x86 and arm64.

>But during kernel booting the console output does not come in Putt= y, it only comes in vmconnect.exe.

>

>So on 12.3, kernel output doesn't come out of both? Do you have bo= ot_multicons=3DYES in your loader.conf?

>If not, only one of the consoles will get output from the kernel.<= /div>

>

>Warner

>>Like below :

>>

>>Loading kernel...

>>/boot/kernel/kernel text=3D0x931f24 data=3D0x187450 data=3D0x0= +0x2d095e syms=3D[0x8+0x138120+0x8+0x124824]

>>Loading configured modules...

>>can't find '/boot/entropy'

>>can't find '/etc/hostid'

>>No valid device tree blob found!

>>WARNING! Trying to fire up the kernel, but no device tree blob= found!

>>EFI framebuffer information:

>>addr, size     0xe0000000, 0x800000

>>dimensions     1024 x 768

>>stride         1024

>>masks          0x00ff0000, 0x0000ff00= , 0x000000ff, 0xff000000 <<<<

>>

>>After this log is not coming in Putty in 12.3 for both x86 and= arm64.



Thanks & Regards,
 Souradeep

--_000_PSAP153MB0536E7F2B5A8DBF521E306E5CCDF9PSAP153MB0536APCP_--