Re: [edk2-devel] separate OVMF binary for TDX? [was: OvmfPkg: Reserve the Secrets and Cpuid page for the SEV-SNP guest]

2021-04-12 Thread Dr. David Alan Gilbert
think also there's a security argument here; some people like to measure security in kloc's; so having your secure boot image as small as possible for the environment you're actually running does make some sense, which favours the 2 image idea. Dave > Thanks > Laszlo -- Dr. David

Re: [edk2-devel] A problem with live migration of UEFI virtual machines

2020-03-02 Thread Dr. David Alan Gilbert
ind people having to maintain old versions of OVMF just to keep variable store compatiiblity. Dave > Thanks > Laszlo -- Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#5

Re: [edk2-devel] A problem with live migration of UEFI virtual machines

2020-02-20 Thread Dr. David Alan Gilbert
ion of the ROM between VMs you want to migrate b) Pad your ROM images to some larger size (e.g. 8MB) so that even if they grow a little bigger then you don't hit the problem. Dave P.S. Please use plain text email Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK -=-=-=-=-=-=-

Re: [edk2-devel] privileged entropy sources in QEMU/KVM guests

2019-11-07 Thread Dr. David Alan Gilbert
* Laszlo Ersek (ler...@redhat.com) wrote: > On 11/07/19 11:18, Dr. David Alan Gilbert wrote: > > * Laszlo Ersek (ler...@redhat.com) wrote: > >> Hi, > >> > >> related TianoCore BZ: > >> > >> https://bugzilla.tianocore.org/show_bug.cgi?id=1871

Re: [edk2-devel] privileged entropy sources in QEMU/KVM guests

2019-11-07 Thread Dr. David Alan Gilbert
e wanted -- > for example an exception could be injected unless RDRAND had been > executed from within SMM. Unfortunately, such an arbitrary restriction > (of RDRAND to SMM) would diverge from the Intel SDM, and would likely > break other (non-SMM) guest code. > > Does a platform device