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Groups > linux.kernel > #1742568
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [Part1 PATCH v5.1 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support |
| Date | 2017-09-30 11:00 +0200 |
| Message-ID | <uvlMS-1Pp-21@gated-at.bofh.it> (permalink) |
| References | <uuCZt-743-33@gated-at.bofh.it> <uvlMS-1Pp-23@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, Sep 29, 2017 at 04:27:47PM -0500, Brijesh Singh wrote:
> From: Tom Lendacky <thomas.lendacky@amd.com>
>
> Provide support for Secure Encrypted Virtualization (SEV). This initial
> support defines a flag that is used by the kernel to determine if it is
> running with SEV active.
>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Ingo Molnar <mingo@redhat.com>
> Cc: "H. Peter Anvin" <hpa@zytor.com>
> Cc: Borislav Petkov <bp@suse.de>
> Cc: Andy Lutomirski <luto@kernel.org>
> Cc: linux-kernel@vger.kernel.org
> Cc: x86@kernel.org
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
> ---
>
> Hi Boris,
>
> Similar to the sme_me_mask, sev_enabled must live in .data section otherwise it
> will get zero'ed in clear_bss() and we will loose the value. I have encountered
> this issue when booting SEV guest using qemu's -kernel option.
Ah, good catch.
> I have removed your R-b since was not sure if you are still okay with the change.
Sure, looks good still.
Reviewed-by: Borislav Petkov <bp@suse.de>
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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Re: [Part1 PATCH v5 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support Borislav Petkov <bp@suse.de> - 2017-09-28 11:10 +0200
Re: [Part1 PATCH v5 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support Borislav Petkov <bp@suse.de> - 2017-09-28 21:30 +0200
Re: [Part1 PATCH v5 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support Borislav Petkov <bp@suse.de> - 2017-09-29 16:50 +0200
Re: [Part1 PATCH v5 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support Borislav Petkov <bp@suse.de> - 2017-09-29 18:00 +0200
Re: [Part1 PATCH v5.1 02/17] x86/mm: Add Secure Encrypted Virtualization (SEV) support Borislav Petkov <bp@suse.de> - 2017-09-30 11:00 +0200
[PATCH] x86/CPU/AMD, mm: Extend with mem_encrypt=sme option Borislav Petkov <bp@suse.de> - 2017-09-30 14:00 +0200
Re: [PATCH] x86/CPU/AMD, mm: Extend with mem_encrypt=sme option Borislav Petkov <bp@suse.de> - 2017-09-30 23:50 +0200
Re: [PATCH] x86/CPU/AMD, mm: Extend with mem_encrypt=sme option Borislav Petkov <bp@suse.de> - 2017-10-01 19:20 +0200
Re: [PATCH] x86/CPU/AMD, mm: Extend with mem_encrypt=sme option Borislav Petkov <bp@suse.de> - 2017-10-02 00:10 +0200
Re: [PATCH] x86/CPU/AMD, mm: Extend with mem_encrypt=sme option Borislav Petkov <bp@suse.de> - 2017-10-02 14:50 +0200
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