From: Brijesh Singh <brijesh.singh@amd.com>
To: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Sean Christopherson <seanjc@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
Joerg Roedel <jroedel@suse.de>, Ard Biesheuvel <ardb@kernel.org>
Cc: brijesh.singh@amd.com, Andi Kleen <ak@linux.intel.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
David Rientjes <rientjes@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Tom Lendacky <thomas.lendacky@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Varad Gautam <varad.gautam@suse.com>,
Dario Faggioli <dfaggioli@suse.com>,
x86@kernel.org, linux-mm@kvack.org, linux-coco@lists.linux.dev,
linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv2 0/7] Implement support for unaccepted memory
Date: Tue, 18 Jan 2022 15:05:34 -0600 [thread overview]
Message-ID: <05067267-494d-beb6-a935-9f39f5c120ae@amd.com> (raw)
In-Reply-To: <20220111113314.27173-1-kirill.shutemov@linux.intel.com>
Hi Kirill,
...
>
> The approach lowers boot time substantially. Boot to shell is ~2.5x
> faster for 4G TDX VM and ~4x faster for 64G.
>
> Patches 1-6/7 are generic and don't have any dependencies on TDX. They
> should serve AMD SEV needs as well. TDX-specific code isolated in the
> last patch. This patch requires the core TDX patchset which is currently
> under review.
>
I can confirm that this series works for the SEV-SNP guest. I was able
to hook the SEV-SNP page validation vmgexit (similar to the TDX patch#7)
and have verified that the guest kernel successfully accepted all the
memory regions marked unaccepted by the EFI boot loader.
Not a big deal, but can I ask you to include me in Cc on the future
series; I should be able to do more testing on SNP hardware and provide
my Test-by tag.
~ Brijesh
prev parent reply other threads:[~2022-01-18 21:05 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-11 11:33 [PATCHv2 0/7] Implement support for unaccepted memory Kirill A. Shutemov
2022-01-11 11:33 ` [PATCHv2 1/7] mm: Add " Kirill A. Shutemov
2022-01-11 19:46 ` Dave Hansen
2022-01-12 11:31 ` David Hildenbrand
2022-01-12 19:15 ` Kirill A. Shutemov
2022-01-14 13:22 ` David Hildenbrand
2022-01-12 18:30 ` Kirill A. Shutemov
2022-01-12 18:40 ` Dave Hansen
2022-01-13 7:42 ` Mike Rapoport
2022-01-11 11:33 ` [PATCHv2 2/7] efi/x86: Get full memory map in allocate_e820() Kirill A. Shutemov
2022-01-11 11:33 ` [PATCHv2 3/7] efi/x86: Implement support for unaccepted memory Kirill A. Shutemov
2022-01-11 17:17 ` Dave Hansen
2022-01-12 19:29 ` Kirill A. Shutemov
2022-01-12 19:35 ` Dave Hansen
2022-01-11 11:33 ` [PATCHv2 4/7] x86/boot/compressed: Handle " Kirill A. Shutemov
2022-01-11 11:33 ` [PATCHv2 5/7] x86/mm: Reserve unaccepted memory bitmap Kirill A. Shutemov
2022-01-11 19:10 ` Dave Hansen
2022-01-12 19:43 ` Kirill A. Shutemov
2022-01-12 19:53 ` Dave Hansen
2022-01-15 18:46 ` Mike Rapoport
2022-01-11 11:33 ` [PATCHv2 6/7] x86/mm: Provide helpers for unaccepted memory Kirill A. Shutemov
2022-01-11 20:01 ` Dave Hansen
2022-01-12 19:43 ` Kirill A. Shutemov
2022-01-11 11:33 ` [PATCHv2 7/7] x86/tdx: Unaccepted memory support Kirill A. Shutemov
2022-01-18 21:05 ` Brijesh Singh [this message]
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