From: Borislav Petkov <bp@suse.de>
To: Brijesh Singh <brijesh.ksingh@gmail.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>,
Eduardo Habkost <ehabkost@redhat.com>,
"Edgar E. Iglesias" <edgar.iglesias@xilinx.com>,
Peter Maydell <peter.maydell@linaro.org>,
kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
Marcel Apfelbaum <marcel@redhat.com>,
Markus Armbruster <armbru@redhat.com>,
Peter Crosthwaite <crosthwaite.peter@gmail.com>,
Richard Henderson <richard.henderson@linaro.org>,
qemu-devel@nongnu.org,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Alexander Graf <agraf@suse.de>,
Stefan Hajnoczi <stefanha@gmail.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Thomas Lendacky <Thomas.Lendacky@amd.com>,
Alistair Francis <alistair.francis@xilinx.com>,
Bruce Rogers <brogers@suse.com>,
Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] [PATCH v8 05/28] target/i386: add memory encryption feature cpuid support
Date: Tue, 13 Feb 2018 16:41:51 +0100 [thread overview]
Message-ID: <20180213154151.GC12578@pd.tnic> (raw)
In-Reply-To: <CA+HCGMYvh081neh=aF45qG0WF2vpJwkZ4unnLPLwhEkDNPWZsQ@mail.gmail.com>
On Tue, Feb 13, 2018 at 09:39:01AM -0600, Brijesh Singh wrote:
> Yes, I think we should be able to avoid creating new CPU model to
> handle this case. I am leaning towards dropping this patch and
> implement logic to populate the CPUID 0x8000_001F only when SEV is
> enabled. This should not require any changes in existing CPU model
> feature flag and live migration of existing guest should work fine.
That sounds even nicer.
Thx.
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
next prev parent reply other threads:[~2018-02-13 15:42 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-12 15:36 [Qemu-devel] [PATCH v8 00/28] x86: Secure Encrypted Virtualization (AMD) Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 01/28] memattrs: add debug attribute Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 02/28] exec: add ram_debug_ops support Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 03/28] exec: add debug version of physical memory read and write API Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 04/28] monitor/i386: use debug APIs when accessing guest memory Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 05/28] target/i386: add memory encryption feature cpuid support Brijesh Singh
2018-02-12 18:38 ` Eduardo Habkost
2018-02-12 21:07 ` Brijesh Singh
2018-02-12 21:19 ` Borislav Petkov
2018-02-13 15:39 ` Brijesh Singh
2018-02-13 15:41 ` Borislav Petkov [this message]
2018-02-13 15:45 ` Dr. David Alan Gilbert
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 06/28] machine: add -memory-encryption property Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 07/28] kvm: update kvm.h to include memory encryption ioctls Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 08/28] docs: add AMD Secure Encrypted Virtualization (SEV) Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 09/28] target/i386: add Secure Encrypted Virtulization (SEV) object Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 10/28] sev/i386: add command to initialize the memory encryption context Brijesh Singh
2018-02-12 18:57 ` Eduardo Habkost
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 11/28] sev/i386: register the guest memory range which may contain encrypted data Brijesh Singh
2018-02-12 15:36 ` [Qemu-devel] [PATCH v8 12/28] kvm: introduce memory encryption APIs Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 13/28] qmp: add query-sev command Brijesh Singh
2018-02-12 17:27 ` Eric Blake
2018-02-12 18:47 ` Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 14/28] hmp: add 'info sev' command Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 15/28] sev/i386: add command to create launch memory encryption context Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 16/28] sev/i386: add command to encrypt guest memory region Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 17/28] target/i386: encrypt bios rom Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 18/28] sev/i386: add support to LAUNCH_MEASURE command Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 19/28] sev/i386: finalize the SEV guest launch flow Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 20/28] hw/i386: set ram_debug_ops when memory encryption is enabled Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 21/28] sev/i386: add debug encrypt and decrypt commands Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 22/28] target/i386: clear C-bit when walking SEV guest page table Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 23/28] include: add psp-sev.h header file Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 25/28] sev/i386: add support to KVM_SEV_GUEST_STATUS Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 26/28] qmp: add query-sev-launch-measure command Brijesh Singh
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 27/28] tests/qmp-test: blacklist " Brijesh Singh
2018-02-13 16:44 ` Dr. David Alan Gilbert
2018-02-12 15:37 ` [Qemu-devel] [PATCH v8 28/28] sev/i386: add migration blocker Brijesh Singh
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