Is it possible to use HYPERVISOR_mmu_update to unmap an area of the
virtual address range and achieve the TLB update at the same time. I.e.,
a bulk version of:
return HYPERVISOR_update_va_mapping(addr), val,
(unsigned long)UVMF_ALL | UVMF_INVLPG);
Mick.
P.S. What happened to the developer manual for 3.3? The xen.org site
only shows a user manual.
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I''ve only ever known this done by batching multiple hypercalls using a multicall - saves multiple Guest<->Xen transitions, which I assume is what you are aiming for? Would that do for your purposes? Cheers, Mark On Monday 09 March 2009 16:29:18 Mick Jordan wrote:> Is it possible to use HYPERVISOR_mmu_update to unmap an area of the > virtual address range and achieve the TLB update at the same time. I.e., > a bulk version of: > > return HYPERVISOR_update_va_mapping(addr), val, > (unsigned long)UVMF_ALL | UVMF_INVLPG); > > Mick. > > P.S. What happened to the developer manual for 3.3? The xen.org site > only shows a user manual. > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel_______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On 09/03/2009 16:29, "Mick Jordan" <Mick.Jordan@sun.com> wrote:> Is it possible to use HYPERVISOR_mmu_update to unmap an area of the > virtual address range and achieve the TLB update at the same time. I.e., > a bulk version of: > > return HYPERVISOR_update_va_mapping(addr), val, > (unsigned long)UVMF_ALL | UVMF_INVLPG);You''ll have to do a multicall of HYPERVISOR_mmu_update followed by HYPERVISOR_mmuext_op.> Mick. > > P.S. What happened to the developer manual for 3.3? The xen.org site > only shows a user manual.There''s no actively maintained developer manual. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel