From: Borislav Petkov <bp@alien8.de>
To: Arvind Sankar <nivedita@alum.mit.edu>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
x86@kernel.org, Joerg Roedel <jroedel@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86/boot/64: Initialize 5-level paging variables earlier
Date: Tue, 13 Oct 2020 10:11:17 +0200 [thread overview]
Message-ID: <20201013081117.GA28215@zn.tnic> (raw)
In-Reply-To: <20201012153501.GA559681@rani.riverdale.lan>
On Mon, Oct 12, 2020 at 11:35:01AM -0400, Arvind Sankar wrote:
> > qemu supports it. -cpu "qemu64,+la57"
>
> Thanks! On QEMU, it does crash without this patch.
Works fine here. I gave this to qemu:
-cpu qemu64,+la57,vendor=GenuineIntel
it said:
qemu-system-x86_64: warning: host doesn't support requested feature: CPUID.07H:ECX.la57 [bit 16]
because host is AMD, probably, and I have
CONFIG_X86_5LEVEL=y
enabled for the guest kernel and tip:x86/seves booted fine.
What am I missing?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2020-10-13 8:11 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-08 19:16 [PATCH v2 0/5] Couple of bugfixes to sev-es series Arvind Sankar
2020-10-08 19:16 ` [PATCH v2 1/5] x86/boot: Initialize boot_params in startup code Arvind Sankar
2020-10-08 19:16 ` [PATCH v2 2/5] x86/boot: Split out command-line related declarations Arvind Sankar
2020-10-08 19:16 ` [PATCH v2 3/5] x86/boot/64: Show original faulting address in case of error Arvind Sankar
2020-10-09 14:42 ` Joerg Roedel
2020-10-08 19:16 ` [PATCH v2 4/5] x86/boot/64: Explicitly map boot_params and command line Arvind Sankar
2020-10-09 14:49 ` Joerg Roedel
2020-10-16 16:27 ` Borislav Petkov
2020-10-16 16:47 ` Arvind Sankar
2020-10-16 17:07 ` Borislav Petkov
2020-10-16 17:20 ` Arvind Sankar
2020-10-16 17:32 ` Borislav Petkov
2020-10-16 20:04 ` [PATCH v3 1/4] " Arvind Sankar
2020-10-16 20:04 ` [PATCH v3 2/4] x86/boot: Initialize boot_params in startup code Arvind Sankar
2020-10-16 20:04 ` [PATCH v3 3/4] x86/boot: Split out command-line related declarations Arvind Sankar
2020-10-16 20:04 ` [PATCH v3 4/4] x86/boot/64: Show original faulting address in case of error Arvind Sankar
2020-10-19 14:51 ` [PATCH v3 1/4] x86/boot/64: Explicitly map boot_params and command line Borislav Petkov
2020-10-19 17:12 ` Arvind Sankar
2020-10-19 17:31 ` Borislav Petkov
2020-10-19 19:44 ` [tip: x86/seves] " tip-bot2 for Arvind Sankar
2020-10-16 21:18 ` [PATCH v2 4/5] " Arvind Sankar
2020-10-16 21:23 ` Borislav Petkov
2020-10-08 19:16 ` [PATCH v2 5/5] x86/head/64: Disable stack protection for head$(BITS).o Arvind Sankar
2020-10-09 14:49 ` Joerg Roedel
2020-10-16 11:17 ` Borislav Petkov
2020-10-16 12:43 ` Arvind Sankar
2020-10-16 13:15 ` Borislav Petkov
2020-10-16 14:16 ` Arvind Sankar
2020-10-19 19:44 ` [tip: x86/seves] " tip-bot2 for Arvind Sankar
2020-10-10 19:11 ` [PATCH] x86/boot/64: Initialize 5-level paging variables earlier Arvind Sankar
2020-10-10 19:26 ` Arvind Sankar
2020-10-12 14:08 ` Kirill A. Shutemov
2020-10-12 15:35 ` Arvind Sankar
2020-10-13 8:11 ` Borislav Petkov [this message]
2020-10-13 8:20 ` Kirill A. Shutemov
2020-10-13 8:33 ` Borislav Petkov
2020-10-13 9:12 ` Kirill A. Shutemov
2020-10-13 9:46 ` Borislav Petkov
2020-10-15 13:52 ` Kirill A. Shutemov
2020-10-16 10:21 ` Borislav Petkov
2020-10-13 8:59 ` Joerg Roedel
2020-10-19 19:44 ` [tip: x86/seves] " tip-bot2 for Arvind Sankar
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