Date: Thu, 7 Nov 2019 21:19:09 +0000 From: Colin Percival <cperciva@tarsnap.com> To: Andriy Gapon <avg@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r354482 - head/sys/x86/x86 Message-ID: <0100016e47bc3d83-8486b1e5-d734-49da-9995-ad5cfc8540d2-000000@email.amazonses.com> In-Reply-To: <201911072114.xA7LExVP090362@repo.freebsd.org> References: <201911072114.xA7LExVP090362@repo.freebsd.org>
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On 2019-11-07 13:14, Andriy Gapon wrote: > x86 stack_save_td_running() can work safely only if IPI_TRACE is a > non-maskable interrupt. But at the moment FreeBSD/Xen does not provide > support for the NMI delivery mode. So, mark the functionality as > unsupported similarly to other platforms without NMI. > [...] > +#ifdef XENHVM I'm not sure this does what you intended. XENHVM simply adds *support* for running under Xen/HVM, and it's part of the GENERIC kernel. -- Colin Percival Security Officer Emeritus, FreeBSD | The power to serve Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid
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