[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] EFI + tboot + Xen
On Fri, Apr 14, 2017 at 04:17:54PM +0100, Andrew Cooper wrote: > On 14/04/2017 15:54, Daniel Kiper wrote: > > Hey, > > > > Has anybody tried to run EFI + tboot + Xen? > > I have a feeling that it does not work because > > tboot shuts down EFI boot services. However, > > even if it works then efibootmgr is unusable > > due to lack of EFI runtime services. Do we care? > > Is it possible to make it work with full blown > > EFI infrastructure available for Xen? > > Judging by > http://hg.code.sf.net/p/tboot/code/file/9352e6391332/tboot/common/boot.S#l83 > it will be grub exiting boot services. tboot needs rather more > multiboot2 knowledge before it could participate in a hand-off to Xen > while keeping boot services active. Sure, it is not a problem. However, I was told that it was (not) done deliberately because we cannot trust EFI due to lack of its measurement. I am not sure it is true or not. I though that somebody played with tboot and Xen and has some knowledge in that area. Anyway, I will investigate this further. However, any knowledge sharing is greatly appreciated. Daniel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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