Re: Q: Linux rebooting directly into linux.

2001-01-18 Thread Eric W. Biederman
Werner Almesberger <[EMAIL PROTECTED]> writes: > > I agree writing the code to understand the table may be a significant > > issue. On the other hand I still think it is worth a look, being > > able to unify option parsing for multiple platforms is not a small > > gain, nor is getting out from

Re: Q: Linux rebooting directly into linux.

2000-11-19 Thread Eric W. Biederman
Werner Almesberger <[EMAIL PROTECTED]> writes: > Eric W. Biederman wrote: > > The code wasn't trivially reusable, and the structures had a lot > > of overhead. > > There's some overhead, but I think it's not too bad. I'll give it a > try ... > > > The rebooting is done the rest is not yet. > >

Re: Q: Linux rebooting directly into linux.

2000-11-19 Thread Werner Almesberger
Eric W. Biederman wrote: > The code wasn't trivially reusable, and the structures had a lot > of overhead. There's some overhead, but I think it's not too bad. I'll give it a try ... > The rebooting is done the rest is not yet. Ah, and I already wondered where in all the APIC code you've hidden

Re: Q: Linux rebooting directly into linux.

2000-11-19 Thread Eric W. Biederman
Werner Almesberger <[EMAIL PROTECTED]> writes: > Eric W. Biederman wrote: > > Well there is that. Somehow implementing scatter/gather from > > a user space process seemed like a potential mess, and extra work. > > Did you look at kiobufs ? I think they may just have the right > functionality.

Re: Q: Linux rebooting directly into linux.

2000-11-18 Thread Werner Almesberger
Eric W. Biederman wrote: > Well there is that. Somehow implementing scatter/gather from > a user space process seemed like a potential mess, and extra work. Did you look at kiobufs ? I think they may just have the right functionality. I always wanted bootimg to be able to memory-map things to r

Re: Q: Linux rebooting directly into linux.

2000-11-16 Thread Eric W. Biederman
Werner Almesberger <[EMAIL PROTECTED]> writes: > Eric W. Biederman wrote: > > There are a couple of differences. > > But the big one is I'm trying to do it right. > > So why do you need a file-based interface then ? ;-) When possible it is nice to set as much policy as possible, without remov

Re: Q: Linux rebooting directly into linux.

2000-11-15 Thread Eric W. Biederman
Erik Andersen <[EMAIL PROTECTED]> writes: > On Tue Nov 14, 2000 at 07:59:18AM -0700, Eric W. Biederman wrote: > > > > All mkelfImage does is the pasting of initrd's, command lines, > > and just a touch of argument conversion code. > > You can link in an initrd using linker magic, i.e. > $(O

Re: Q: Linux rebooting directly into linux.

2000-11-15 Thread Erik Andersen
On Tue Nov 14, 2000 at 07:59:18AM -0700, Eric W. Biederman wrote: > > All mkelfImage does is the pasting of initrd's, command lines, > and just a touch of argument conversion code. You can link in an initrd using linker magic, i.e. $(OBJCOPY) --add-section=image=kernel --add-section=initrd=i

Re: Q: Linux rebooting directly into linux.

2000-11-15 Thread Eric W. Biederman
Erik Andersen <[EMAIL PROTECTED]> writes: > On Thu Nov 09, 2000 at 01:18:24AM -0700, Eric W. Biederman wrote: > > > > I have recently developed a patch that allows linux to directly boot > > into another linux kernel. > > Looks very cool. I'm curious about your decision to use ELF images. T

Re: Q: Linux rebooting directly into linux.

2000-11-14 Thread Werner Almesberger
Eric W. Biederman wrote: > There are a couple of differences. > But the big one is I'm trying to do it right. So why do you need a file-based interface then ? ;-) Since this is a highly privileged operation anyway, you may as well trust user space to use the right data format ... I get the im

Re: Q: Linux rebooting directly into linux.

2000-11-13 Thread Erik Andersen
On Thu Nov 09, 2000 at 01:18:24AM -0700, Eric W. Biederman wrote: > > I have recently developed a patch that allows linux to directly boot > into another linux kernel. Looks very cool. I'm curious about your decision to use ELF images. This makes it much less conveinient to use due to the ke

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
"H. Peter Anvin" <[EMAIL PROTECTED]> writes: > "Eric W. Biederman" wrote: > > > > Hmm. You must mean similiar to milo. > > > > Have fun. With linuxBIOS I'm working exactly the other way. Killing > > off the BIOS. And letting the initial firmware be just a boot loader. > > The reduction is c

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread H. Peter Anvin
"Eric W. Biederman" wrote: > > Hmm. You must mean similiar to milo. > > Have fun. With linuxBIOS I'm working exactly the other way. Killing > off the BIOS. And letting the initial firmware be just a boot loader. > The reduction is complexity should make it more reliable. > ... except that

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
Adam Lazur <[EMAIL PROTECTED]> writes: > Eric W. Biederman ([EMAIL PROTECTED]) said: > > Michael Rothwell <[EMAIL PROTECTED]> writes: > > > This would rock. One place I can think of using it is with distro > > > installers. The installer boots a generic i386 kernel, and then installs > > > an opt

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
Adam Lazur <[EMAIL PROTECTED]> writes: > Eric W. Biederman ([EMAIL PROTECTED]) said: > > I have recently developed a patch that allows linux to directly boot > > into another linux kernel. With the code freeze it appears > > inappropriate to submit it at this time. > > Aside from what looks to

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
"H. Peter Anvin" <[EMAIL PROTECTED]> writes: > Followup to: <[EMAIL PROTECTED]> > By author:[EMAIL PROTECTED] (Eric W. Biederman) > In newsgroup: linux.dev.kernel > > > > > > > > The interface is designed to be simple and inflexible yet very > > > > powerful. To that end the code just take

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Adam Lazur
Eric W. Biederman ([EMAIL PROTECTED]) said: > Michael Rothwell <[EMAIL PROTECTED]> writes: > > This would rock. One place I can think of using it is with distro > > installers. The installer boots a generic i386 kernel, and then installs > > an optimized (i.e, PIII, etc.) kernel for run-time. > >

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Adam Lazur
Eric W. Biederman ([EMAIL PROTECTED]) said: > I have recently developed a patch that allows linux to directly boot > into another linux kernel. With the code freeze it appears > inappropriate to submit it at this time. Aside from what looks to be support for SMP, how does this differ from the t

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread H. Peter Anvin
Followup to: <[EMAIL PROTECTED]> By author:[EMAIL PROTECTED] (Eric W. Biederman) In newsgroup: linux.dev.kernel > > > > > > The interface is designed to be simple and inflexible yet very > > > powerful. To that end the code just takes an elf binary, and a > > > command line. The started im

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
Michael Rothwell <[EMAIL PROTECTED]> writes: > "Eric W. Biederman" wrote: > > > > I have recently developed a patch that allows linux to directly boot > > into another linux kernel. > > This would rock. One place I can think of using it is with distro > installers. The installer boots a gener

Re: Q: Linux rebooting directly into linux.

2000-11-11 Thread Eric W. Biederman
Wakko Warner <[EMAIL PROTECTED]> writes: > > I have recently developed a patch that allows linux to directly boot > > into another linux kernel. With the code freeze it appears > > inappropriate to submit it at this time. > > > > Linus in principal do you have any trouble with this kind of > >