Re: [PATCH v8 14/40] x86/kernel: Validate rom memory before accessing when SEV-SNP is active

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Subject: Re: [PATCH v8 14/40] x86/kernel: Validate rom memory before accessing when SEV-SNP is active
From: Borislav Petkov <bp@xxxxxxxxx>
Date: Tue, 28 Dec 2021 16:40:07 +0100
Cc: x86@xxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, platform-driver-x86@xxxxxxxxxxxxxxx, linux-coco@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Joerg Roedel <jroedel@xxxxxxx>, Tom Lendacky <thomas.lendacky@xxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Paolo Bonzini <pbonzini@xxxxxxxxxx>, Sean Christopherson <seanjc@xxxxxxxxxx>, Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>, Jim Mattson <jmattson@xxxxxxxxxx>, Andy Lutomirski <luto@xxxxxxxxxx>, Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>, Sergio Lopez <slp@xxxxxxxxxx>, Peter Gonda <pgonda@xxxxxxxxxx>, Peter Zijlstra <peterz@xxxxxxxxxxxxx>, Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>, David Rientjes <rientjes@xxxxxxxxxx>, Dov Murik <dovmurik@xxxxxxxxxxxxx>, Tobin Feldman-Fitzthum <tobin@xxxxxxx>, Michael Roth <michael.roth@xxxxxxx>, Vlastimil Babka <vbabka@xxxxxxx>, "Kirill A . Shutemov" <kirill@xxxxxxxxxxxxx>, Andi Kleen <ak@xxxxxxxxxxxxxxx>, "Dr . David Alan Gilbert" <dgilbert@xxxxxxxxxx>, tony.luck@xxxxxxxxx, marcorr@xxxxxxxxxx, sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx
In-reply-to: <20211210154332.11526-15-brijesh.singh@amd.com>
References: <20211210154332.11526-1-brijesh.singh@amd.com> <20211210154332.11526-15-brijesh.singh@amd.com>

On Fri, Dec 10, 2021 at 09:43:06AM -0600, Brijesh Singh wrote:

> Subject: Re: [PATCH v8 14/40] x86/kernel: Validate rom memory before accessing when SEV-SNP is active

s/rom/ROM/

> The probe_roms() access the memory range (0xc0000 - 0x10000) to probe

"probe_roms() accesses... "

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette

References:
- [PATCH v8 00/40] Add AMD Secure Nested Paging (SEV-SNP) Guest Support
  - From: Brijesh Singh
- [PATCH v8 14/40] x86/kernel: Validate rom memory before accessing when SEV-SNP is active
  - From: Brijesh Singh

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