Date: Thu, 30 Apr 2015 11:50:25 -0400 From: John Baldwin <jhb@freebsd.org> To: src-committers@freebsd.org Cc: svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r282274 - in head: share/man/man4 sys/amd64/include/xen sys/conf sys/dev/xen/balloon sys/dev/xen/blkback sys/dev/xen/control sys/dev/xen/grant_table sys/dev/xen/netback sys/dev/xen/netf... Message-ID: <2157167.0KNEAOyALl@ralph.baldwin.cx> In-Reply-To: <201504301548.t3UFmnKt093935@svn.freebsd.org> References: <201504301548.t3UFmnKt093935@svn.freebsd.org>
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On Thursday, April 30, 2015 03:48:49 PM John Baldwin wrote: > Author: jhb > Date: Thu Apr 30 15:48:48 2015 > New Revision: 282274 > URL: https://svnweb.freebsd.org/changeset/base/282274 > > Log: > Remove support for Xen PV domU kernels. Support for HVM domU kernels > remains. Xen is planning to phase out support for PV upstream since it > is harder to maintain and has more overhead. Modern x86 CPUs include > virtualization extensions that support HVM guests instead of PV guests. > In addition, the PV code was i386 only and not as well maintained recently > as the HVM code. > - Remove the i386-only NATIVE option that was used to disable certain > components for PV kernels. These components are now standard as they > are on amd64. > - Remove !XENHVM bits from PV drivers. > - Remove various shims required for XEN (e.g. PT_UPDATES_FLUSH, LOAD_CR3, > etc.) > - Remove duplicate copy of <xen/features.h>. > - Remove unused, i386-only xenstored.h. > > Differential Revision: https://reviews.freebsd.org/D2362 > Reviewed by: royger > Tested by: royger (i386/amd64 HVM domU and amd64 PVH dom0) > Relnotes: yes Forgot to add: Discussed with: cperciva Colin assured me that everyone using FreeBSD in EC2 is using HVM, not PV domU. -- John Baldwin
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