Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Daniel Kiper
On Fri, Mar 11, 2016 at 09:35:19AM -0500, Konrad Rzeszutek Wilk wrote: > > >> Nor would > > >> that deal with avoiding reserved regions not too far above 1Mb, > > >> since at best the main payload can be relocatable (but certainly > > >> not the binary seen by the boot loader, as at least multiboo

Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Andrew Cooper
On 11/03/16 14:13, Jan Beulich wrote: On 11.03.16 at 14:21, wrote: >> On 11/03/16 12:06, Jan Beulich wrote: >> On 11.03.16 at 10:22, wrote: Sadly, c/s cf393624 "x86: use 2M superpages for text/data/bss mappings" exposes a bug in all Syslinux variants, including ISOlinux and >>>

Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Konrad Rzeszutek Wilk
> >> Nor would > >> that deal with avoiding reserved regions not too far above 1Mb, > >> since at best the main payload can be relocatable (but certainly > >> not the binary seen by the boot loader, as at least multiboot1 > >> doesn't support anything like that). > > > > The only reason Xen sits

Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Jan Beulich
>>> On 11.03.16 at 14:21, wrote: > On 11/03/16 12:06, Jan Beulich wrote: > On 11.03.16 at 10:22, wrote: >>> Sadly, c/s cf393624 "x86: use 2M superpages for text/data/bss mappings" >>> exposes a bug in all Syslinux variants, including ISOlinux and >>> PXELinux, causing a failure to boot. >>>

Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Andrew Cooper
On 11/03/16 12:06, Jan Beulich wrote: On 11.03.16 at 10:22, wrote: >> Sadly, c/s cf393624 "x86: use 2M superpages for text/data/bss mappings" >> exposes a bug in all Syslinux variants, including ISOlinux and >> PXELinux, causing a failure to boot. >> >> Xen currently requires its bootloader

Re: [Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Jan Beulich
>>> On 11.03.16 at 10:22, wrote: > Sadly, c/s cf393624 "x86: use 2M superpages for text/data/bss mappings" > exposes a bug in all Syslinux variants, including ISOlinux and > PXELinux, causing a failure to boot. > > Xen currently requires its bootloader to decompress it, and place it at > the 1MB

[Xen-devel] Request to revert superpage adjustments

2016-03-11 Thread Andrew Cooper
Sadly, c/s cf393624 "x86: use 2M superpages for text/data/bss mappings" exposes a bug in all Syslinux variants, including ISOlinux and PXELinux, causing a failure to boot. Xen currently requires its bootloader to decompress it, and place it at the 1MB physical boundary. The alignment adjustments