Hi everybody! I am new in Xen and have a problem. I use Intel-VT processor, Xen 3.3.0 (built from sources) and hvm-domain Windows Vista. I read in Intel Software Developer Manual about VMX-preemption timer. I want to cause periodic VM-exits and use this feature to do it. But I can''t find preemption timer in Xen source codes. For example, there is not preemption timer among vmx exit reasons in \include\asm-x86\hvm\vmx\vmx.h. Does anybody know about VMX-preemption timer support in Xen? Thank you, Olga _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Hi, At 15:47 +0100 on 24 Apr (1240588035), OK wrote:> Hi everybody! > I am new in Xen and have a problem. > I use Intel-VT processor, Xen 3.3.0 (built from sources) and hvm-domain Windows Vista. I read in Intel Software Developer Manual about VMX-preemption timer. I want to cause periodic VM-exits and use this feature to do it. But I can''t find preemption timer in Xen source codes. For example, there is not preemption timer among vmx exit reasons in \include\asm-x86\hvm\vmx\vmx.h. Does anybody know about VMX-preemption timer support in Xen?This feature''s not used (or needed) by Xen. Cheers, Tim. -- Tim Deegan <Tim.Deegan@citrix.com> Principal Software Engineer, Citrix Systems (R&D) Ltd. [Company #02300071, SL9 0DZ, UK.] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Fri, Apr 24, 2009 at 6:48 PM, Tim Deegan <Tim.Deegan@citrix.com> wrote:> Hi, > > At 15:47 +0100 on 24 Apr (1240588035), OK wrote: > > Hi everybody! > > I am new in Xen and have a problem. > > I use Intel-VT processor, Xen 3.3.0 (built from sources) and hvm-domain > Windows Vista. I read in Intel Software Developer Manual about > VMX-preemption timer. I want to cause periodic VM-exits and use this feature > to do it. But I can''t find preemption timer in Xen source codes. For > example, there is not preemption timer among vmx exit reasons in > \include\asm-x86\hvm\vmx\vmx.h. Does anybody know about VMX-preemption timer > support in Xen? > > This feature''s not used (or needed) by Xen. >Thanks. But does Xen have any "timer"-feature to initiate periodic exits (period about 5-10 minutes)? Olga _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
At 16:10 +0100 on 24 Apr (1240589435), OK wrote:> At 15:47 +0100 on 24 Apr (1240588035), OK wrote: > > Hi everybody! > > I am new in Xen and have a problem. > > I use Intel-VT processor, Xen 3.3.0 (built from sources) and hvm-domain Windows Vista. I read in Intel Software Developer Manual about VMX-preemption timer. I want to cause periodic VM-exits and use this feature to do it. But I can''t find preemption timer in Xen source codes. For example, there is not preemption timer among vmx exit reasons in \include\asm-x86\hvm\vmx\vmx.h. Does anybody know about VMX-preemption timer support in Xen? > > This feature''s not used (or needed) by Xen. > > Thanks. But does Xen have any "timer"-feature to initiate periodic exits (period about 5-10 minutes)?Xen has a general per-CPU timer system that you could use for that; look at the functions in xen/include/xen/timer.h Cheers, Tim. -- Tim Deegan <Tim.Deegan@citrix.com> Principal Software Engineer, Citrix Systems (R&D) Ltd. [Company #02300071, SL9 0DZ, UK.] _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel