linux-kernel - RE: [RFC PATCH v3 0/6] Direct Map Removal for guest

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <7ad5d114-3d19-4c33-bb3c-7f8940ad114e@amazon.com>
Date: Wed, 6 Nov 2024 10:04:27 -0700
From: "Manwaring, Derek" <derekmn@...zon.com>
To: <elena.reshetova@...el.com>
CC: <ackerleytng@...gle.com>, <agordeev@...ux.ibm.com>,
	<aou@...s.berkeley.edu>, <borntraeger@...ux.ibm.com>, <bp@...en8.de>,
	<canellac@...zon.at>, <catalin.marinas@....com>, <chenhuacai@...nel.org>,
	<corbet@....net>, <dave.hansen@...el.com>, <dave.hansen@...ux.intel.com>,
	<david@...hat.com>, <derekmn@...zon.com>, <gerald.schaefer@...ux.ibm.com>,
	<gor@...ux.ibm.com>, <graf@...zon.com>, <hca@...ux.ibm.com>, <hpa@...or.com>,
	<jgowans@...zon.com>, <jthoughton@...gle.com>, <kalyazin@...zon.com>,
	<kernel@...0n.name>, <kvm@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<linux-mm@...ck.org>, <linux-riscv@...ts.infradead.org>,
	<linux-s390@...r.kernel.org>, <linux-trace-kernel@...r.kernel.org>,
	<loongarch@...ts.linux.dev>, <luto@...nel.org>,
	<mathieu.desnoyers@...icios.com>, <mhiramat@...nel.org>, <mingo@...hat.com>,
	<mlipp@...zon.at>, <palmer@...belt.com>, <paul.walmsley@...ive.com>,
	<pbonzini@...hat.com>, <peterz@...radead.org>, <quic_eberman@...cinc.com>,
	<rostedt@...dmis.org>, <roypat@...zon.co.uk>, <rppt@...nel.org>,
	<seanjc@...gle.com>, <shuah@...nel.org>, <svens@...ux.ibm.com>,
	<tabba@...gle.com>, <tglx@...utronix.de>, <vannapurve@...gle.com>,
	<will@...nel.org>, <x86@...nel.org>, <xmarcalx@...zon.com>
Subject: RE: [RFC PATCH v3 0/6] Direct Map Removal for guest_memfd

On 2024-11-04 at 08:33+0000, Elena Reshetova wrote:
> This statement *is* for integrity section. We have a separate TDX guidance
> on side-channels (including speculative) [3] and some speculative attacks
> that affect confidentiality (for example spectre v1) are listed as not covered
> by TDX but remaining SW responsibility (as they are now).

Thanks for the additional info, Elena. Given that clarification, I
definitely see direct map removal and TDX as complementary.

Derek