lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Message-ID: <20110208145551.GA4606@dumpdata.com> Date: Tue, 8 Feb 2011 09:55:51 -0500 From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.Com> To: Yinghai Lu <yinghai@...nel.org> Cc: Jeremy Fitzhardinge <jeremy@...p.org>, Stefano Stabellini <stefano.stabellini@...citrix.com>, "H. Peter Anvin" <hpa@...or.com>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "tglx@...utronix.de" <tglx@...utronix.de>, "x86@...nel.org" <x86@...nel.org>, Jan Beulich <JBeulich@...ell.com> Subject: Re: [PATCH] x86/mm/init: respect memblock reserved regions when destroying mappings > >> could be used to skip clear highmap for xen path? > > > > Seems pretty ad-hoc. > > > > then what is size for mfn-list after _end... 8 bytes * nr_pages. For 4GB, 2048 pages. For 32GB, 8192 pages. For 128GB, 32768 pages, and so on. > > could be copied or move to BRK. The _brk size is determined during build-time. We don't know what the memory size will be during bootup time and would have to select the highest values (128MB) which is quite a large amount to be reserved in _brk area. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists