Date: Mon, 30 May 2022 09:30:43 +0000 From: Souradeep Chakrabarti <schakrabarti@microsoft.com> To: "freebsd-arm@FreeBSD.org" <freebsd-arm@FreeBSD.org>, "tsoome@FreeBSD.org" <tsoome@FreeBSD.org> Cc: Wei Hu <weh@microsoft.com> Subject: serial console and comconsole in FreeBSD arm64 Message-ID: <PSAP153MB05367C6802D76EC6BA352431CCDD9@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>
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Hi,
I am trying to access virtual serial console via Putty and in 13.0 it is no=
t 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 <vm_name> -number 1 -path \\.\pipe\Te=
stpipe<file://./pipe/Testpipe>
2) In another Powershell with Admin privilege run following:
Set-VMFirmware -VMName <VM name> --ConsoleMode COM1
3) start the VM and open putty to connect the \\.\pipe\Testpipe<file://./pi=
pe/Testpipe> in serial mode.
No output will be seen on putty.
But the same works in FreeBSD 12.3 and Putty gets the output from EFI loade=
r for both x86 and arm64.
But during kernel booting the console output does not come in Putty, it onl=
y comes in vmconnect.exe.
Like below :
Loading kernel...
/boot/kernel/kernel text=3D0x931f24 data=3D0x187450 data=3D0x0+0x2d095e sym=
s=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.
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<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
<p class=3D"MsoNormal">I am trying to access virtual serial console via Put=
ty and in 13.0 it is not working
<o:p></o:p></p>
<p class=3D"MsoNormal">for both x86 and arm64.<o:p></o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText">It is very easy to reproduce:<o:p></o:p></p>
<p class=3D"MsoPlainText">1) In Windows Hyper-V set a FreeBSD 13.0 VM=
<o:p></o:p></p>
<p class=3D"MsoPlainText">2) Use Powershell in Admin privileged mode and ru=
n following:<o:p></o:p></p>
<p class=3D"MsoPlainText"> &=
nbsp; Set-VMComPort -VMName <vm_name=
> -number 1 -path
<a href=3D"file://./pipe/Testpipe">\\.\pipe\Testpipe</a><o:p></o:p></p>
<p class=3D"MsoPlainText">2) In another Powershell with Admin privilege run=
following:<o:p></o:p></p>
<p class=3D"MsoPlainText"> &=
nbsp; Set-VMFirmware -VMName <VM nam=
e> --ConsoleMode COM1<o:p></o:p></p>
<p class=3D"MsoPlainText">3) start the VM and open putty to connect the <a =
href=3D"file://./pipe/Testpipe">
\\.\pipe\Testpipe</a> in serial mode.<o:p></o:p></p>
<p class=3D"MsoPlainText">No output will be seen on putty.<o:p></o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText">But the same works in FreeBSD 12.3 and Putty gets=
the output from EFI loader for both x86 and arm64.<o:p></o:p></p>
<p class=3D"MsoPlainText">But during kernel booting the console output does=
not come in Putty, it only comes in vmconnect.exe.
<o:p></o:p></p>
<p class=3D"MsoPlainText">Like below :<o:p></o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText">Loading kernel...<o:p></o:p></p>
<p class=3D"MsoPlainText">/boot/kernel/kernel text=3D0x931f24 data=3D0x1874=
50 data=3D0x0+0x2d095e syms=3D[0x8+0x138120+0x8+0x124824]<o:p></o:p></p>
<p class=3D"MsoPlainText">Loading configured modules...<o:p></o:p></p>
<p class=3D"MsoPlainText">can't find '/boot/entropy'<o:p></o:p></p>
<p class=3D"MsoPlainText">can't find '/etc/hostid'<o:p></o:p></p>
<p class=3D"MsoPlainText">No valid device tree blob found!<o:p></o:p></p>
<p class=3D"MsoPlainText">WARNING! Trying to fire up the kernel, but no dev=
ice tree blob found!<o:p></o:p></p>
<p class=3D"MsoPlainText">EFI framebuffer information:<o:p></o:p></p>
<p class=3D"MsoPlainText">addr, size 0xe0000000, 0x=
800000<o:p></o:p></p>
<p class=3D"MsoPlainText">dimensions 1024 x 768<o:p=
></o:p></p>
<p class=3D"MsoPlainText">stride &=
nbsp; 1024<o:p></o:p></p>
<p class=3D"MsoPlainText">masks &n=
bsp; 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 <<<<<=
o:p></o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText">After this log is not coming in Putty in 12.3 for=
both x86 and arm64.<o:p></o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText"><o:p> </o:p></p>
<p class=3D"MsoPlainText"><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p> </o:p></p>
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