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
| ||
|
Date: Wed, 28 Jul 2010 18:42:29 -0400 From: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> To: Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com> Cc: avi@...hat.com, Marcelo Tosatti <mtosatti@...hat.com>, Gleb Natapov <gleb@...hat.com>, linux-kernel@...r.kernel.org, npiggin@...e.de, Jeremy Fitzhardinge <jeremy@...p.org>, kvm@...r.kernel.org, bharata@...ibm.com, Balbir Singh <balbir@...ibm.com>, Jan Beulich <JBeulich@...ell.com> Subject: Re: [PATCH RFC 0/4] Paravirt-spinlock implementation for KVM guests (Version 0) On Wed, Jul 28, 2010 at 06:10:59PM -0400, Konrad Rzeszutek Wilk wrote: > On Mon, Jul 26, 2010 at 11:41:50AM +0530, Srivatsa Vaddagiri wrote: > > This patch-series implements paravirt-spinlock implementation for KVM guests, > > based heavily on Xen's implementation. I tried to refactor Xen's spinlock > > implementation to make it common for both Xen and KVM - but found that > > few differences between Xen and KVM (Xen has the ability to block on a > > particular event/irq for example) _and_ the fact that the guest kernel > > can be compiled to support both Xen and KVM hypervisors (CONFIG_XEN and > > CONFIG_KVM_GUEST can both be turned on) makes the "common" code a eye-sore. > > There will have to be: > > > > if (xen) { > > ... > > } else if (kvm) { > > .. > > } > > > > or possibly: > > > > alternative(NOP, some_xen_specific_call, ....) > > Why not utilize the pvops path? Duh. You did use it. Sorry about the noise. -- 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