On Wed, Mar 08, 2017 at 03:51:07PM -0500, Brijesh Singh wrote: > This RFC series provides support for AMD's new Secure Encrypted > Virtualization (SEV) feature. This RFC is based KVM RFC [1]. > > SEV is an extension to the AMD-V architecture which supports running > multiple VMs under the control of a hypervisor. The SEV feature allows > the memory contents of a virtual machine (VM) to be transparently encrypted > with a key unique to the guest VM. The memory controller contains a > high performance encryption engine which can be programmed with multiple > keys for use by a different VMs in the system. The programming and > management of these keys is handled by the AMD Secure Processor firmware > which exposes a commands for these tasks. > > The KVM RFC introduced a new ioctl (KVM_MEMORY_ENCRYPTION_OP) which can be > used by qemu to issue the SEV commands to assist performing common hypervisor > activities such as a launching, running, snapshooting, migration and debugging > guests. > > The following links provide additional details: > > AMD Memory Encryption whitepaper: > > http://amd-dev.wpengine.netdna-cdn.com/wordpress/media/2013/12/AMD_Memory_Encryption_Whitepaper_v7-Public.pdf > > AMD64 Architecture Programmer's Manual: > http://support.amd.com/TechDocs/24593.pdf > SME is section 7.10 > SEV is section 15.34
I am looking for detailed CPUID documentation, and latest version of Volume 3 I can find (http://support.amd.com/TechDocs/24594.pdf) is from June 2015 and doesn't include CPUID Fn8000_001F. Is there a public updated version of AMD64 Architecture Programmer's Manual Volume 3 including SEV CPUID info? > > Secure Encrypted Virutualization Key Management: > http://support.amd.com/TechDocs/55766_SEV-KM API_Specification.pdf > > KVM Forum slides: > http://www.linux-kvm.org/images/7/74/02x08A-Thomas_Lendacky-AMDs_Virtualizatoin_Memory_Encryption_Technology.pdf > > KVM RFC link: > > [1] http://marc.info/?l=linux-mm&m=148846752931115&w=2 > > Video of the KVM Forum Talk: > https://www.youtube.com/watch?v=RcvQ1xN55Ew > [...] -- Eduardo
