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, 14 Mar 2007 21:38:26 -0500 From: Hollis Blanchard <hollis@...guinppc.org> To: Avi Kivity <avi@...ranet.com> Cc: kvm-devel@...ts.sourceforge.net, Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org Subject: Re: [kvm-devel] [PATCH 01/15] KVM: Use a shared page for kernel/user communication when runing a vcpu On Sun, 2007-03-11 at 15:53 +0200, Avi Kivity wrote: > Instead of passing a 'struct kvm_run' back and forth between the > kernel and userspace, allocate a page and allow the user to mmap() it. > This reduces needless copying and makes the interface expandable by > providing lots of free space. Do you provide for another means of accessing guest memory from host userspace? For example, how do you attach a host debugger to the guest? Xen uses an ioctl followed by mmap for this purpose, which is why I wonder about using mmap(/dev/kvm) for another purpose. -Hollis - 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