Hey Ryan,
thanks for the testing, i hope you didnt have too much problems to get it
working.
anyway as far as i can tell it wont have problem to drive up to 256 + 3.75 giga
ram for guest.
if we want it to drive systems with even more ram we have two options ( both
very easily applied ):
we can add another cmos byte to a "future reserved" byte, or we can use the 3
cmos bytes that i already added and say that
we store memory in the above bios memory at multiplier of 1 MB.
it is important we decide now how we want to store the memory, that in the
future when 256 + 3.75 giga of ram wont be enough
we wouldn't have to change bochs bios again.
i am working for fixes to the patch from comments that Anthony and Luca gave
me, so i hope to send a better patch to the list soon.
thanks again,
have a nice day :)
-----Original Message-----
From: Ryan Harper [mailto:[EMAIL PROTECTED]
Sent: Mon 8/13/2007 7:22 PM
To: Izik Eidus; kvm-devel@lists.sourceforge.net
Subject: Re: [kvm-devel] adding support for above 2giga to kvm (include patchs)
* Ryan Harper <[EMAIL PROTECTED]> [2007-08-13 15:29]:
> * Izik Eidus <[EMAIL PROTECTED]> [2007-08-12 14:27]:
> > this is a request for comment for patchs that allow kvm to run with more
> > than 2 giga.
> > there are 4 patchs.
> > the first patch(biospatch): is for the bios:now the bios know how to map
> > memory about the 0xf0000000-0xffffffff hole.
> >
> > the second patch(qemu_change_types_patch):is for qemu ram_size types:it
> > change the variables that hold the ram_size to unsigned long,
> > and it is based on patch from the qemu-devel list that targeted sparc.
> >
> > the third patch(kvm_userspace_memmap):is for kvm and add to it another
> > memory slot that hold the new memory region.
> >
> > the last patch(kvm_new_slot_patch):is for kvmctl, and make it use the new
> > memory region and map memory above 4giga to it.
> >
> > i added compiled bios for to make it easy to run it.
> >
> > (kvm was tested with 14giga of ram and had no problem to drive win3k and
> > fedora 6 + x ,please note that i tryed in the patch to add support to the
> > qemu emulator to run with above 4 giga as well,
> > it work without svga, need some work to do there)
>
> I can confirm the patches working against kvm-33 with up to 14G guests,
> tested 32-bit Feisty guest, and 64-bit feisty guest. Both working
> fine. I'm trying to get on a box with more ram so I can test larger
> guests.
-----Original Message-----
From: Izik Eidus
Sent: Mon 8/13/2007 11:28 PM
To: Ryan Harper
Subject: RE: [kvm-devel] adding support for above 2giga to kvm (include patchs)
I can confirm 32G x86_64 feisty guest boots and reports 32G of ram.
Good work.
--
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
(512) 838-9253 T/L: 678-9253
[EMAIL PROTECTED]
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