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From: Vipin Sharma <vipinsh@google.com>
To: thomas.lendacky@amd.com, pbonzini@redhat.com,
	sean.j.christopherson@intel.com, tj@kernel.org,
	lizefan@huawei.com
Cc: joro@8bytes.org, corbet@lwn.net, brijesh.singh@amd.com,
	jon.grimm@amd.com, eric.vantassell@amd.com, gingell@google.com,
	rientjes@google.com, kvm@vger.kernel.org, x86@kernel.org,
	cgroups@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, Vipin Sharma <vipinsh@google.com>
Subject: [RFC Patch 0/2] KVM: SVM: Cgroup support for SVM SEV ASIDs
Date: Mon, 21 Sep 2020 17:40:22 -0700	[thread overview]
Message-ID: <20200922004024.3699923-1-vipinsh@google.com> (raw)

Hello,

This patch series adds a new SEV controller for tracking and limiting
the usage of SEV ASIDs on the AMD SVM platform.

SEV ASIDs are used in creating encrypted VM and lightweight sandboxes
but this resource is in very limited quantity on a host.

This limited quantity creates issues like SEV ASID starvation and
unoptimized scheduling in the cloud infrastructure.

SEV controller provides SEV ASID tracking and resource control
mechanisms.

Patch 1 - Overview, motivation, and implementation details of the SEV
          controller.
Patch 2 - Kernel documentation of the SEV controller for both
	  cgroup v1 and v2.

Thanks

Vipin Sharma (2):
  KVM: SVM: Create SEV cgroup controller.
  KVM: SVM: SEV cgroup controller documentation

 Documentation/admin-guide/cgroup-v1/sev.rst |  94 +++++
 Documentation/admin-guide/cgroup-v2.rst     |  56 ++-
 arch/x86/kvm/Makefile                       |   1 +
 arch/x86/kvm/svm/sev.c                      |  16 +-
 arch/x86/kvm/svm/sev_cgroup.c               | 414 ++++++++++++++++++++
 arch/x86/kvm/svm/sev_cgroup.h               |  40 ++
 include/linux/cgroup_subsys.h               |   3 +
 init/Kconfig                                |  14 +
 8 files changed, 634 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/admin-guide/cgroup-v1/sev.rst
 create mode 100644 arch/x86/kvm/svm/sev_cgroup.c
 create mode 100644 arch/x86/kvm/svm/sev_cgroup.h

-- 
2.28.0.681.g6f77f65b4e-goog


             reply	other threads:[~2020-09-22  0:40 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22  0:40 Vipin Sharma [this message]
2020-09-22  0:40 ` [RFC Patch 1/2] KVM: SVM: Create SEV cgroup controller Vipin Sharma
2020-09-22  1:04   ` Randy Dunlap
2020-09-22  1:22     ` Sean Christopherson
2020-09-22 16:05       ` Vipin Sharma
2020-11-03 16:39       ` James Bottomley
2020-11-03 18:10         ` Sean Christopherson
2020-11-03 22:43           ` James Bottomley
2020-09-22  0:40 ` [RFC Patch 2/2] KVM: SVM: SEV cgroup controller documentation Vipin Sharma
2020-09-22  1:48 ` [RFC Patch 0/2] KVM: SVM: Cgroup support for SVM SEV ASIDs Sean Christopherson
2020-09-22 21:14   ` Vipin Sharma
     [not found]     ` <20200924192116.GC9649@linux.intel.com>
2020-09-24 19:55       ` Tom Lendacky
2020-09-25 22:22         ` Vipin Sharma
2020-10-02 20:48           ` Vipin Sharma
2020-11-03  2:06             ` Sean Christopherson
2020-11-14  0:26               ` David Rientjes
2020-11-24 19:16                 ` Sean Christopherson
2020-11-24 19:49                   ` Vipin Sharma
2020-11-24 20:18                     ` David Rientjes
2020-11-24 21:08                       ` Vipin Sharma
2020-11-24 21:27                         ` Sean Christopherson
2020-11-24 22:21                           ` Vipin Sharma
2020-11-24 23:18                             ` Sean Christopherson
2020-11-27 18:01                   ` Christian Borntraeger
2020-10-01 18:08         ` Peter Gonda
2020-10-01 22:44           ` Tom Lendacky
2020-09-23 12:47   ` Paolo Bonzini
2020-09-28  9:12     ` Janosch Frank
2020-09-28  9:21       ` Christian Borntraeger

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