Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6F76C6FD19 for ; Fri, 10 Mar 2023 10:06:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230186AbjCJKGx (ORCPT ); Fri, 10 Mar 2023 05:06:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50500 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229758AbjCJKGs (ORCPT ); Fri, 10 Mar 2023 05:06:48 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6409910C10B; Fri, 10 Mar 2023 02:06:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Type:References: In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=84q5pyr/dcD+Y0Z73xp/RW/CA5Rhr5WvvDWxUci6lAw=; b=DFb6YzICTscPFx+mY5VQviZBx+ N2HQ9SzHoXDbuZ3uAIEXOKI39mTSzIj/ET7yVN3c+zg/v/UdMhcE5bg35PMmpadnESRfnteTH8Wsn 4RiwDUX8TaDbX0qyXafBvsAdgV66TZAgtZXhwubsuSnDNEyhKAhGdLyMnsdDTGnnihaLHH3Zg4WXJ uc4mtCpxM+OhNq6ZZqc9ooVNKoSu0QRewm7CbmQh4DvN2MhbjaLZjd9e2xLzdayK8RMlmNd2vjZzu S5S8F46YeIRj+P0oc/8axHEVqoaMSUlF9t366A+870QKUHhNzmKXe9wtv6NevsTSFb8KXpy4paoJC bawPoxtA==; Received: from [2001:8b0:10b:5:fea5:d438:64bd:2b44] (helo=u3832b3a9db3152.ant.amazon.com) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1paZcx-009IEi-E0; Fri, 10 Mar 2023 10:05:32 +0000 Message-ID: <91efa6ddafc290f05f847b69fef345db6123f8a6.camel@infradead.org> Subject: Re: [PATCH v5 06/14] x86/ioremap: Support hypervisor specified range to map as encrypted From: David Woodhouse To: Borislav Petkov , =?ISO-8859-1?Q?J=F6rg_R=F6del?= , Tom Lendacky Cc: Usama Arif , Dave Hansen , "Michael Kelley (LINUX)" , Sean Christopherson , "hpa@zytor.com" , KY Srinivasan , Haiyang Zhang , "wei.liu@kernel.org" , Dexuan Cui , "luto@kernel.org" , "peterz@infradead.org" , "davem@davemloft.net" , "edumazet@google.com" , "kuba@kernel.org" , "pabeni@redhat.com" , "lpieralisi@kernel.org" , "robh@kernel.org" , "kw@linux.com" , "bhelgaas@google.com" , "arnd@arndb.de" , "hch@lst.de" , "m.szyprowski@samsung.com" , "robin.murphy@arm.com" , "brijesh.singh@amd.com" , "tglx@linutronix.de" , "mingo@redhat.com" , "dave.hansen@linux.intel.com" , Tianyu Lan , "kirill.shutemov@linux.intel.com" , "sathyanarayanan.kuppuswamy@linux.intel.com" , "ak@linux.intel.com" , "isaku.yamahata@intel.com" , "dan.j.williams@intel.com" , "jane.chu@oracle.com" , "tony.luck@intel.com" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-hyperv@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-arch@vger.kernel.org" , "iommu@lists.linux.dev" Date: Fri, 10 Mar 2023 10:05:29 +0000 In-Reply-To: <20230309163431.GFZAoKl2zgRdi8UXIQ@fat_crate.local> References: <20230309163431.GFZAoKl2zgRdi8UXIQ@fat_crate.local> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/pkcs7-signature"; boundary="=-gRY/54NjbtmNn5F48bY3" User-Agent: Evolution 3.44.4-0ubuntu1 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --=-gRY/54NjbtmNn5F48bY3 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2023-03-09 at 17:34 +0100, Borislav Petkov wrote: > On Thu, Mar 09, 2023 at 03:45:35PM +0000, David Woodhouse wrote: > > cc_vendor isn't yet exposed. As we discussed this in IRC, I've been >=20 > Right, and we might just as well expose it because having > a setter/getter is kinda silly for a __ro_after_init variable, see > below. >=20 > So here's what I was able to scratch up quickly to remove the static > key. >=20 > The asm looks like this: Seems reasonable. I might just let you iterate on that, drop the SNP-ES part from the parallel boot series, then let Tom or someone send it in later once the dust settles.=20 --=-gRY/54NjbtmNn5F48bY3 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Disposition: attachment; filename="smime.p7s" Content-Transfer-Encoding: base64 MIAGCSqGSIb3DQEHAqCAMIACAQExDzANBglghkgBZQMEAgEFADCABgkqhkiG9w0BBwEAAKCCEkQw ggYQMIID+KADAgECAhBNlCwQ1DvglAnFgS06KwZPMA0GCSqGSIb3DQEBDAUAMIGIMQswCQYDVQQG EwJVUzETMBEGA1UECBMKTmV3IEplcnNleTEUMBIGA1UEBxMLSmVyc2V5IENpdHkxHjAcBgNVBAoT FVRoZSBVU0VSVFJVU1QgTmV0d29yazEuMCwGA1UEAxMlVVNFUlRydXN0IFJTQSBDZXJ0aWZpY2F0 aW9uIEF1dGhvcml0eTAeFw0xODExMDIwMDAwMDBaFw0zMDEyMzEyMzU5NTlaMIGWMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxmb3JkMRgwFgYD VQQKEw9TZWN0aWdvIExpbWl0ZWQxPjA8BgNVBAMTNVNlY3RpZ28gUlNBIENsaWVudCBBdXRoZW50 aWNhdGlvbiBhbmQgU2VjdXJlIEVtYWlsIENBMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKC 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