Yes, but way before... not a problem. It isn't a thread in the scheduler sense. David Woodhouse <dwmw2@xxxxxxxxxxxxx> wrote: >On Fri, 2013-03-01 at 17:11 -0800, H. Peter Anvin wrote: >> On 03/01/2013 03:30 PM, David Woodhouse wrote: >> > On Sat, 2013-03-02 at 00:07 +0100, Borislav Petkov wrote: >> >> Hmm, yeah, that's nasty. This also means option #2 can go too >because >> >> of the fixed addresses. Option #1 is also kinda polluting user >address >> >> space >> > >> > User address space is there to be polluted. Create a "kernel >thread" for >> > invoking EFI, except that this kernel thread actually has userspace >page >> > tables. Set up those page tables however the hell you like, and >then >> > just make sure you always invoke EFI runtime services from that >thread. >> > >> >> Just FYI: as far as I know we already have such a "thread". > >In that case it seems like this option is fairly much a no-brainer. > >Do we make any calls to runtime services during early boot (before we'd >have such a thread set up for use)? -- Sent from my mobile phone. Please excuse brevity and lack of formatting. -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
