similar to: [PATCH] x86: don't allow Dom0 to map MSI-X table writably

There are BIOSes that want to map the IO-APIC MMIO region from some ACPI method(s), and there is at least one BIOS flavor that wants to use this mapping to clear an RTE''s mask bit. While we can''t allow the latter, we can permit reads and simply drop write attempts, leveraging the already existing infrastructure introduced for dealing with AMD IOMMUs'' representation as

This is the latest version of a patch that adds hugepage support to the Xen hypervisor in a PV environment. It is against the latest xen-unstable tree on xenbits.xensource.com. I believe this version addresses the comments made about the previous version of the patch. Hugepage support must be enabled via the hypervisor command line option "allowhugepage". It assumes the guest

Hi, I''ve been trying to boot stefano''s minimal dom0 kernel from git://xenbits.xen.org/people/sstabellini/linux-pvhvm.git 2.6.36-rc1-initial-domain-v2+pat On xen-unstable, I get the following WARN_ON()''s from Xen when bringing up the NIC''s, then the machine hangs forever when trying to login either over serial or NIC. (XEN) Xen WARN at msi.c:649 (XEN) ----[

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 All. Just in then case if anyone is using some old piece of hardware like the ibm x440, I could successfully run xen 4.2.3 on it. I have a working kernel .config and a set of xen boot parameters, along with some tuneups in the x440''s BIOS. The problem was quite complex (irq handling pci bus problems, ethtool magics, etc). Occasionally (once

This set of patches adds the support for acceleration plugins to the netfront/netback drivers. These plugins are intended to support virtualisable network hardware that can be directly accessed from the guest, bypassing dom0. This is in response to the RFC we posted to xen-devel with an outline of our approach at the end of September. To follow will be another set of patches to provide our

Hello, I''m getting many "Error getting mfn" on a xen4.1.3 with dom0 3.4.11 x86_32. I thought it could be related to xen/mmu: Release just the MFN list, not MFN list and part of pagetables. http://git.kernel.org/?p=linux/kernel/git/konrad/xen.git;a=commit;h=785f62314984ea3af9dd830b020289ba2509ae69 (XEN) Freed 212kB init memory. (XEN) mm.c:908:d0 Error getting mfn 2009b (pfn

Hello, there, I got this error when i tried to run " data.kr <- surf.gls(2, expcov, data, d=0.7);" "Error: cannot allocate vector of size 382890 Kb Execution halted" My data is 100x100 grid. the following is the summary of "data": > summary(data); x y z Min. : 1.00 Min. : 1.00 Min. :-1.0172 1st Qu.: 26.00

@@ -491,16 +512,15 @@ int pirq_guest_bind(struct vcpu *v, int int rc = 0; cpumask_t cpumask = CPU_MASK_NONE; + WARN_ON(!spin_is_locked(&v->domain->evtchn_lock)); I find this WARN_ON() is triggered harmlessly when I assign device to HVM guest. The call trace is XEN_DOMCTL_bind_pt_irq -> pt_irq_create_bind_vtd() -> pirq_guest_bind(). Should we

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

This fixes various problems that cropped up with the vdso patches. - Patch 1 fixes an information leak to userspace. - Patches 2 and 3 fix the kernel build on gold. - Patches 4 and 5 fix Xen (I hope). - Patch 6 (optional) adds a trace event to vsyscall emulation. It will make it easier to handle performance regression reports :) [1]

Xen 3.2.1-rc1 64 bit Dom0: 2.6.16.33 PAE DomU: 2.6.18.8 (from a pull a few weeks ago) If you need the symbols, there from the same Xen I linked to in my post from a few days ago... (XEN) mm.c:3498:d4 ptwr_emulate: could not get_page_from_l1e() (XEN) Unhandled page fault in domain 4 on VCPU 0 (ec=0003) (XEN) Pagetable walk from 00000000c08187f0: (XEN) L4[0x000] = 00000004dfa38027

What are the outstanding things to do before we think we can start on the 4.2 -rc''s? Does anyone have a timetable in mind? hypervisor: * ??? - Keir, Tim, Jan? tools: * libxl stable API -- we would like 4.2 to define a stable API which downstream''s can start to rely on not changing. Aspects of this are: * event handling (IanJ working

Signed-off-by: Kieran Mansley <kmansley@solarflare.com> Allow iomem permissions to be set up through grant table ops diff -r 749b60ccc177 xen/arch/x86/mm.c --- a/xen/arch/x86/mm.c Wed Jul 25 14:03:08 2007 +0100 +++ b/xen/arch/x86/mm.c Wed Jul 25 14:03:12 2007 +0100 @@ -594,6 +594,14 @@ get_##level##_linear_pagetable( return 1; \ } + +int iomem_page_test(unsigned long mfn,

Make sure MFN read from pte is valid before accessing the page info structure associated with it. Drop guest-to-machine-physical translation from ptwr code. Signed-off-by: Jan Beulich <jbeulich@novell.com> Index: 2007-05-14/xen/arch/x86/mm.c =================================================================== --- 2007-05-14.orig/xen/arch/x86/mm.c 2007-05-14 13:43:50.000000000 +0200 +++

Folks -- One more time with the PAE request, this time I''ve brought up the Linux kernel w/ a very recent version of Xen. (Just yesterday I pulled and updated my hg tree.) I still can''t set breakpoints within the guest domain: # gdb vmlinux GNU gdb 6.4-debian <...> (gdb) target remote roti.lab.netapp.com:9999 Remote debugging using roti.lab.netapp.com:9999 [New

Hi there, I ran a test on an Apache server, the workload is a helloworld.c compiled cgi, very simple. OS is SLES 10. The stress tool is ab (apache bench). The performance looks big degration from native to Dom0: Running in prefork mode: Native Dom0 Performance(request/s) 3700 . 650 CPU%

Hi there, I ran a test on an Apache server, the workload is a helloworld.c compiled cgi, very simple. OS is SLES 10. The stress tool is ab (apache bench). The performance looks big degration from native to Dom0: Running in prefork mode: Native Dom0 Performance(request/s) 3700 . 650 CPU%

I''ve just had my first attempt at getting VGA passthrough to work, and it crashed the machine. I''m trying to understand whether this is a problem with my hardware, configuration or a software problem. I''m running Xen 4.1.2 with Linux 3.1.2 The CPU is an Intel Core i5-650 http://ark.intel.com/products/43546/Intel-Core-i5-650-Processor-%284M-Cache-3_20-GHz%29 The Video

Hi, I just upgraded to the latest SID after reinstalling my test server. Then, after a while, during the boot process, Xen seems to hang, then my server reboots. It's difficult for me to see anything, since I'm using a KVM over IP, using a quite slow link (from China to UK, using a FreeNX box that connects through a Java KVM over IP to the server), and I don't think it'd be easy