On 02/14/13 21:54, H. Peter Anvin wrote: > On 02/14/2013 12:41 PM, Laszlo Ersek wrote: >> >> ). cpu_reset() [target-i386/helper.c] sets CS:IP to f000:fff0, which is >> the exact address of... reset_vector() in SeaBIOS. >> > > This would be a bug, but it isn't quite true. > > If you look at x86_cpu_reset() you will note that it sets the code > segment base to 0xffff0000, not 0xf0000 as one could expect from the > above. This is also true of a physical x86. > > As such, the *real* reset vector is at 0xfffffff0 as opposed to the > SeaBIOS vector at 0xffff0 -- this is a backwards compatibility vector > which typically just issues a real reset. > > Now, if Qemu doesn't handle the distinction here correctly, that is a bug.
I think I was simply wrong :) Thanks Laszlo ------------------------------------------------------------------------------ Free Next-Gen Firewall Hardware Offer Buy your Sophos next-gen firewall before the end March 2013 and get the hardware for free! Learn more. http://p.sf.net/sfu/sophos-d2d-feb _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
