Date: Fri, 20 Dec 2013 10:27:21 -0800 From: Benjamin Kaduk <bjkfbsd@gmail.com> To: Neel Natu <neel@freebsd.org> Cc: "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org> Subject: Re: svn commit: r259641 - in head/sys/amd64: amd64 include vmm/intel Message-ID: <CAJ5_RoA4G_Vx%2BXJM8kSTeSn=D%2BEFQMY7YWwVYLYO=u6gFq07Ow@mail.gmail.com> In-Reply-To: <201312200550.rBK5oNmw098487@svn.freebsd.org> References: <201312200550.rBK5oNmw098487@svn.freebsd.org>
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On Thu, Dec 19, 2013 at 9:50 PM, Neel Natu <neel@freebsd.org> wrote: > Author: neel > Date: Fri Dec 20 05:50:22 2013 > New Revision: 259641 > URL: http://svnweb.freebsd.org/changeset/base/259641 > > Log: > Re-arrange bits in the amd64/pmap 'pm_flags' field. > > The least significant 8 bits of 'pm_flags' are now used for the IPI > vector > to use for nested page table TLB shootdown. > > Previously we used IPI_AST to interrupt the host cpu which is > functionally > correct but could lead to misleading interrupt counts for AST handler. > The > AST handler was also doing a lot more than what is required for the > nested > page table TLB shootdown (EOI and IRET). > This represents a KBI change, does it not? Should __FreeBSD_version be bumped? -Ben
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