RE: kexec crash on OVMF i386 + x86_64 kernel (Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel)

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To: Dave Young <dyoung@xxxxxxxxxx>, Junichi Nomura <j-nomura@xxxxxxxxxxxxx>
Subject: RE: kexec crash on OVMF i386 + x86_64 kernel (Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel)
From: "Prakhya, Sai Praneeth" <sai.praneeth.prakhya@xxxxxxxxx>
Date: Wed, 17 Apr 2019 17:57:20 +0000
Accept-language: en-US
Cc: Borislav Petkov <bp@xxxxxxxxx>, Chao Fan <fanc.fnst@xxxxxxxxxxxxxx>, Baoquan He <bhe@xxxxxxxxxx>, Kairui Song <kasong@xxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, "kexec@xxxxxxxxxxxxxxxxxxx" <kexec@xxxxxxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-efi@xxxxxxxxxxxxxxx" <linux-efi@xxxxxxxxxxxxxxx>, Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
In-reply-to: <20190417051418.GC8411@dhcp-128-65.nay.redhat.com>
References: <20190412025416.GA11070@jeru.linux.bs1.fc.nec.co.jp> <20190412084956.GC19808@zn.tnic> <20190412133528.GD19808@zn.tnic> <cc2c1dbe-4fb3-fb7d-0540-c04734fc15cb@ce.jp.nec.com> <20190415090717.GA29317@zn.tnic> <20190415102525.GB29317@zn.tnic> <23309b73-d135-a207-564b-6003cee39184@ce.jp.nec.com> <4dbbbb4b-7af9-bd98-b567-890407a15cd1@ce.jp.nec.com> <20190416094554.GF27892@zn.tnic> <befd6560-f41a-b142-a839-aaab861dee5a@ce.jp.nec.com> <20190417051418.GC8411@dhcp-128-65.nay.redhat.com>
Thread-index: AQHU9NyJk5MjJ378I0KIPA24f/91u6ZAo6ng
Thread-topic: kexec crash on OVMF i386 + x86_64 kernel (Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel)

> Added efi people.
> 
> I remember previously Sai did some efi32 tests for kexec, but I'm not sure if he
> tested EFI32 + 64bit kernel.
> 
> Kexec status is not certain because I'm not sure anyone tesed and reported
> issues for that.

No.. I didn't test kexec on EFI32 + 64bit kernel and I also haven't tested kexec'ing from 
kexec'd kernel.

Regards,
Sai

References:
- Re: kexec crash on OVMF i386 + x86_64 kernel (Re: [PATCH v4] x86/boot: Use efi_setup_data for searching RSDP on kexec-ed kernel)
  - From: Dave Young

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