search for: hypervisor_yield

Keir, The patch below is necessary to get ia64 building on current xen-unstable.hg. Thanks, Alex Signed-off-by: Alex Williamson <alex.williamson@hp.com> --- diff -r 3983e4f1b054 xen/arch/ia64/Rules.mk --- a/xen/arch/ia64/Rules.mk Sun Mar 12 10:03:33 2006 +0100 +++ b/xen/arch/ia64/Rules.mk Mon Mar 13 09:36:01 2006 -0700 @@ -12,7 +12,7 @@ CPPFLAGS += -I$(BASEDIR)/include -I$(BA

For an SMP Linux HVM guest with PV drivers inserted, when we do save/restore (or LiveMigration) for the guest, it might panic after it''s restored. The panic point is inside ap_suspend(): .... while (info->do_spin) { cpu_relax(); read_lock(&suspend_lock); HYPERVISOR_yield(); ----> guest might panic on the invocation of this function. read_unlock(&suspend_lock); } ... The root cause is: ap might be invoking the hypercall while bsp is asking the hypervisor to re-initialize the hypercall page when the guest has been just restored! What'...

Hi all I''m hacking on a netback trying to identify whether TLB flushes causes heavy performance penalty on Tx path. The hack is quite nasty (you would not want to know, trust me). Basically what is doesn''t is, 1) alter network protocol to pass along mfns instead of grant references, 2) when the backend sees a new mfn, map it RO and cache it in its own address space. With this

Hi all, With the new vm-tools we are trying to get top like capabilities going correctly. Currently we have a program vm-list that has some of this capability but is dependent on the cpu time given by libxc calls (xc_get_dom_info & xc_domain_get_cpu_usage). These two functions give you how much time (in nanoseconds, why is this not documented) the domain has been actively used. Approaches:

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it

Hi. This patchset implements xen/ia64 domU support. Qing He and Eddie Dong also has been woring on pv_ops so that I want to discuss before going further and avoid duplicated work. I suppose that Eddie will also post his own patch. So reviewing both patches, we can reach to better pv_ops interface. - I didn't changed the ia64 intrinsic paravirtulization abi from the last post. Presumably it