Date: Tue, 24 May 2022 10:07:35 -0600 From: Warner Losh <imp@bsdimp.com> To: Souradeep Chakrabarti <schakrabarti@microsoft.com> Cc: "freebsd-arm@freebsd.org" <arm@freebsd.org>, Wei Hu <weh@microsoft.com> Subject: Re: [EXTERNAL] Re: unable to get virtual serial console for EFI Message-ID: <CANCZdfqp-TJmraK4-0MU%2BfScYVO-1NZYHxNPv9DhgkggS16t-Q@mail.gmail.com> In-Reply-To: <PSAP153MB05361BD405D44B0AE7CF39DACCD79@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM> References: <PSAP153MB0536FC1FA3DA80BC228AEC6ECCD49@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM> <CANCZdfotM2CPtq43aSf_GRAO%2BnWFhXn_54A3H9EoNYQr=z6gsQ@mail.gmail.com> <PSAP153MB05361BD405D44B0AE7CF39DACCD79@PSAP153MB0536.APCP153.PROD.OUTLOOK.COM>
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--000000000000627e6305dfc42800 Content-Type: text/plain; charset="UTF-8" On Tue, May 24, 2022, 9:53 AM Souradeep Chakrabarti < schakrabarti@microsoft.com> wrote: > Hi Warner, > > > > The ConOut is : > > > > global NV,BS,RS ConOut = > AcpiEx(VMBus,,)/VenHw(9B17E5A2-0891-42DD-B653-80B5C22809BA,02780ADA77E3AC4A8E770558EB1073F8C7E020566280CE4DAEB7520C7EF76171) > And what does dmesg say? Warner Regards, > > Souradeep > > > > *From:* Warner Losh <imp@bsdimp.com> > *Sent:* Tuesday, May 24, 2022 8:23 PM > *To:* Souradeep Chakrabarti <schakrabarti@microsoft.com> > *Cc:* arm@freebsd.org; Wei Hu <weh@microsoft.com> > *Subject:* [EXTERNAL] Re: unable to get virtual serial console for EFI > > > > You don't often get email from imp@bsdimp.com. Learn why this is important > <https://aka.ms/LearnAboutSenderIdentification>; > > What does the ComOut variable say? > > > > Warner > > > > > > On Mon, May 23, 2022 at 3:57 AM Souradeep Chakrabarti < > schakrabarti@microsoft.com> wrote: > > Hi, > > I am trying to get the virtual serial console to access via putty while > booting FreeBSD 13 arm64 bootonly on Hyper-V. > > > > Setting console="efi" is not helping to have the virtual serial console > access using putty for ARM64. It is before any kernel module loaded. > > I can get the loader output in vmconnect.exe but not in the putty. > > > > Though I can see VM is getting connected to Hyper-V virtual COM1 console. > But no output is coming to putty. > > > > I have following question : > > Any specific support from EFI firmware, is required for virtual serial to > work in EFI loader in this phase of loading? > > > > I can see FreeBSD EFI loader is able to read the ConInDev and ConOutDev > variables. > > > > With set console="efi" or set console="comconsole,efi" or set > console="efi" , nothing in getting redirected in putty in arm64. > > But in X86 that is not the problem. > > > > Without this debugging the bring up of FreeBSD on arm64 Hyper-V is quite > difficult. Any help or pointers are really appreciated. > > > > Regards, > > Souradeep > > > > --000000000000627e6305dfc42800 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable <div dir=3D"auto"><br><br><div class=3D"gmail_quote" dir=3D"auto"><div dir= =3D"ltr" class=3D"gmail_attr">On Tue, May 24, 2022, 9:53 AM Souradeep Chakr= abarti <<a href=3D"mailto:schakrabarti@microsoft.com">schakrabarti@micro= soft.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D= "margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <div lang=3D"EN-IN" link=3D"blue" vlink=3D"purple" style=3D"word-wrap:break= -word"> <div class=3D"m_-2192630164818505130WordSection1"> <p class=3D"MsoNormal"><span>Hi Warner,<u></u><u></u></span></p> <p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p> <p class=3D"MsoNormal"><span>The ConOut is :<u></u><u></u></span></p> <p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p> <p class=3D"MsoNormal"><span>global NV,BS,RS ConOut =3D AcpiEx(VMBus,,)/Ven= Hw(9B17E5A2-0891-42DD-B653-80B5C22809BA,02780ADA77E3AC4A8E770558EB1073F8C7E= 020566280CE4DAEB7520C7EF76171)</span></p></div></div></blockquote></div><di= v dir=3D"auto">And what does dmesg say?</div><div dir=3D"auto"><br></div><d= iv dir=3D"auto">Warner=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"a= uto"><br></div><div class=3D"gmail_quote" dir=3D"auto"><blockquote class=3D= "gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding= -left:1ex"><div lang=3D"EN-IN" link=3D"blue" vlink=3D"purple" style=3D"word= -wrap:break-word"><div class=3D"m_-2192630164818505130WordSection1"> <p class=3D"MsoNormal"><span>Regards,<u></u><u></u></span></p> <p class=3D"MsoNormal"><span>Souradeep<u></u><u></u></span></p> <p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p> <div> <div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm = 0cm 0cm"> <p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang= =3D"EN-US"> Warner Losh <<a href=3D"mailto:imp@bsdimp.com" target=3D"_bl= ank" rel=3D"noreferrer">imp@bsdimp.com</a>> <br> <b>Sent:</b> Tuesday, May 24, 2022 8:23 PM<br> <b>To:</b> Souradeep Chakrabarti <<a href=3D"mailto:schakrabarti@microso= ft.com" target=3D"_blank" rel=3D"noreferrer">schakrabarti@microsoft.com</a>= ><br> <b>Cc:</b> <a href=3D"mailto:arm@freebsd.org" target=3D"_blank" rel=3D"nore= ferrer">arm@freebsd.org</a>; Wei Hu <<a href=3D"mailto:weh@microsoft.com= " target=3D"_blank" rel=3D"noreferrer">weh@microsoft.com</a>><br> <b>Subject:</b> [EXTERNAL] Re: unable to get virtual serial console for EFI= <u></u><u></u></span></p> </div> </div> <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p> <table border=3D"0" cellspacing=3D"0" cellpadding=3D"0" align=3D"left" widt= h=3D"100%" style=3D"width:100.0%"> <tbody> <tr> <td style=3D"background:#a6a6a6;padding:5.25pt 1.5pt 5.25pt 1.5pt"></td> <td width=3D"100%" style=3D"width:100.0%;background:#eaeaea;padding:5.25pt = 3.75pt 5.25pt 11.25pt"> <div> <p class=3D"MsoNormal"> <span style=3D"font-size:9.0pt;font-family:"Segoe UI",sans-serif;= color:#212121">You don't often get email from <a href=3D"mailto:imp@bsdimp.com" target=3D"_blank" rel=3D"noreferrer">imp@= bsdimp.com</a>. <a href=3D"https://aka.ms/LearnAboutSenderIdentification" t= arget=3D"_blank" rel=3D"noreferrer"> Learn why this is important</a><u></u><u></u></span></p> </div> </td> <td width=3D"75" style=3D"width:56.25pt;background:#eaeaea;padding:5.25pt 3= .75pt 5.25pt 3.75pt"> </td> </tr> </tbody> </table> <div> <div> <p class=3D"MsoNormal">What does the ComOut variable say? <u></u><u></u></p= > <div> <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p> </div> <div> <p class=3D"MsoNormal">Warner<u></u><u></u></p> </div> <div> <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p> </div> </div> <p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p> <div> <div> <p class=3D"MsoNormal">On Mon, May 23, 2022 at 3:57 AM Souradeep Chakrabart= i <<a href=3D"mailto:schakrabarti@microsoft.com" target=3D"_blank" rel= =3D"noreferrer">schakrabarti@microsoft.com</a>> wrote:<u></u><u></u></p> </div> <blockquote style=3D"border:none;border-left:solid #cccccc 1.0pt;padding:0c= m 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm"> <div> <div> <p class=3D"MsoNormal">Hi,<u></u><u></u></p> <p class=3D"MsoNormal">I am trying to get the virtual serial console to acc= ess via putty while booting FreeBSD 13 arm64 bootonly on Hyper-V.<u></u><u>= </u></p> <p class=3D"MsoNormal">=C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Setting console=3D"efi" is not helping to have the virtual serial= console access using putty for ARM64. It is before any kernel module loade= d. <u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= I can get the loader output in vmconnect.exe but not in the putty. <u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Though I can see VM is getting connected to Hyper-V virtual COM1 console. B= ut no output is coming to putty.<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= I have following question :<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Any specific support from EFI firmware, is required for virtual serial to w= ork in EFI loader in this phase of loading?<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= I can see FreeBSD EFI loader is able to read the ConInDev and ConOutDev var= iables.<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= With set console=3D"efi" or set console=3D"comconsole,efi&qu= ot;=C2=A0 or set console=3D"efi" , nothing in getting redirected = in putty in arm64.<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= But in X86 that is not the problem.<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Without this debugging the bring up of FreeBSD on arm64 Hyper-V is quite di= fficult. Any help or pointers are really appreciated.<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= =C2=A0<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Regards,<u></u><u></u></p> <p class=3D"m_-2192630164818505130gmail-m-1602174453955658924msoplaintext">= Souradeep<u></u><u></u></p> <p class=3D"MsoNormal">=C2=A0<u></u><u></u></p> </div> </div> </blockquote> </div> </div> </div> </div> </blockquote></div></div> --000000000000627e6305dfc42800--
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