search for: pfault

...ustness - limit size and scope of change to Xen hypervisor This design has been coded, and tested on a variety of operating systems. I''ve included this weekend''s test report. Of particular interest from the following table are the Average Time comparisions (smaller is better): pfault 10.56 vs 2.43 (XI) sync_all 39.72 vs 33.51 (XI) invl_pg 22.75 vs 4.00 (XI) The patch is too large for the mailing list, and may be obtained from http://s3.amazonaws.com/VIDownloads/xi-20060626.patch The patch applies against changeset 10352 (and possibly others) We look forward to any commen...

From: Christian Borntraeger <borntraeger at de.ibm.com> The address 0x11b8 is used by z/VM for pfault and diag 250 I/O to provide a 64 bit extint parameter. virtio uses the same address, so its time to update the lowcore structure. Acked-by: Martin Schwidefsky <schwidefsky at de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger at de.ibm.com> Signed-off-by: Carsten Otte <co...

...t; systems. I''ve included this weekend''s test report. >>>>>> >>>>>> Of particular interest from the following table are the Average Time >>>>>> comparisions (smaller is better): >>>>>> >>>>>> pfault 10.56 vs 2.43 (XI) >>>>>> sync_all 39.72 vs 33.51 (XI) >>>>>> invl_pg 22.75 vs 4.00 (XI) >>>>>> >>>>>> The patch is too large for the mailing list, and may be obtained from >>>>>> >>>>>> h...

From: Thierry Reding <treding at nvidia.com> Hi Ben, here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the

From: Thierry Reding <treding at nvidia.com> Hi Ben, here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the

hi, am starting to play with XEN - the virtualisation project (http://xen.sf.net). i''ll give some background first of all and then the question - at the bottom - will make sense [when posting to lkml i often get questions asked that are answered by the background material i also provide... *sigh*] each virtual machine requires (typically) its own physical ram (a chunk of the

From: Martin Schwidefsky <schwidefsky at de.ibm.com> The SIE instruction on s390 uses the 2nd half of the page table page to virtualize the storage keys of a guest. This patch offers the s390_enable_sie function, which reorganizes the page tables of a single-threaded process to reserve space in the page table: s390_enable_sie makes sure that the process is single threaded and then uses

...06-17 21:48:29.000000000 +0200 -+++ linux-2.6.12-xen/arch/s390/kernel/smp.c 2006-02-17 00:45:18.257517785 +0100 ++++ linux-2.6.12-xen/arch/s390/kernel/smp.c 2006-02-25 00:12:33.813987917 +0100 @@ -679,12 +679,14 @@ __cpu_disable(void) { unsigned long flags; @@ -6972,7 +6972,7 @@ /* Disable pfault pseudo page faults on this cpu. */ diff -Nurp pristine-linux-2.6.12/arch/um/kernel/process.c linux-2.6.12-xen/arch/um/kernel/process.c --- pristine-linux-2.6.12/arch/um/kernel/process.c 2005-06-17 21:48:29.000000000 +0200 -+++ linux-2.6.12-xen/arch/um/kernel/process.c 2006-02-17 00:45:18.20252616...

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git

This patch series introduces a backend for kvm to run on IBM System z machines that uses the mainframe's sie virtualization capability. This work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with a 64bit linux host. Userspace will follow once we're done brushing it over. The patch queue consists of the following patches, which can be applied in sequence on top of kvm.git