similar to: [PATCH 5/6] Add MSI support to XEN

This patch changes the pirq to be per-domain in xen tree. Signed-off-by: Jiang Yunhong <yunhong.jiang@intel.com> Signed-off-by: Shan Haitao <haitao.shan@intel.com> Best Regards Shan Haitao _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, Keir, These patches are rebased version of Yunhong''s original patches, which were sent out before XEN 3.2 was released. These patches enable MSI support and limited MSI-X support in XEN. Here is the original description of the patches from Yunhong''s mail. The basic idea including: 1) Keep vector global resource owned by xen, while split pirq into per-domain

I was trying to patch Xen 3.2 from the mercurial repository with the MSI patches by Yunhong Jiang given at the bottom of this page : http://lists.xensource.com/archives/html/xen-devel/2007-11/msg00157.html The tree seems to have significantly changed, especially the hvm_irq_dpci_mapping structure in irq.h header file. Are there any updated patches, or can I get a version of Xen from somewhere

flight 10626 xen-unstable real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/10626/ Regressions :-( Tests which did not succeed and are blocking, including tests which could not be run: test-amd64-i386-xl-multivcpu 16 guest-start.2 fail in 10623 REGR. vs. 10621 Tests which are failing intermittently (not blocking): test-amd64-i386-rhel6hvm-intel 4 xen-install fail

Hi, Keir, This patch will add the missing MSI-X support to HVM domain. All code is added to qemu. Can I know your comments on this? Best Regards Haitao Shan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Currently the vector is not freed for MSI interrupt, the three patches fix the issue. The first patch(pirq.patch) move the get_free_pirq/map(unmap)_domain_pirq from arch/x86/physdev.c to arch/x86/irq.c, since that should be part of irq managment, no logic changes. The second patch(msi_vector_clean.patch) free the vector when the pirq is unmapped or when domain destroy. One thing need notice for

Hi, Keir, Jan, This patch is a bugfix pointed by Jan. Fix mask_base(actually MSI-X table base, copy name from native) to be a virtual address rather than a physical address. And remove wrong printk in pci_disable_msix. Jan, the error message you saw is wrong output from kernel''s MSI code. Really sorry for my dirty code there. Could you please review the patch and give me feedback?

MSI-x may have multiple vectors, however in current interrupt remapping code, one device only has one entry in interrupt remapping table. This patch adds ''remap_index'' in msi_desc structure to track its index in interrupt remapping table. Signed-off-by: Haitao Shan <haitao.shan@intel.com> Signed-off-by: Weidong Han <weidong.han@intel.com>

Hi, Keir, This patch will move reading and writing of PCI configuration spaces from dom0 to Xen. It also changes VTD code, so that they can touch the PCI configuration spaces with proper lock. This will also benefit MSI support in Xen. Can you give some comments? Thanks! <<pci_conf_xen.patch>> Best Regards Haitao Shan _______________________________________________ Xen-devel

Hi, Keir, This patch is a bugfix for saving and restoring MSI/MSI-X across S3. Currently, Dom0''s PCI layer unmaps MSI when S3 and maps them back when resuming. However, this triggers unexpected behaviors. For example, if the drivers still holds that irq at the point of unmapping MSI, Xen will force unbind that pirq. But after resume, we have no mechanism to rebind that pirq. The device

Hi, Keir, Currently, HVM guests do not have access to performance counters. So it is not possible to use performance analyzer software such as vtune in HVM guest to analyze programme performance. Other usage of performance counters , for example, the NMI watchdog, won''t function either. This patch will enable performance counters in HVM guest. Currently, only Core 2 Duo is implemented.

<<handle_msi_irq_storm.patch>> Hi, Keir, This patch handles MSI irq storm. Unluckily, I have observed this phenomenon again. This will happen when some kind of MSI-X capable NIC is assigned to an HVM guest. The basic idea is to mask the interrupt on receiving the second interrupt and set a timer to unmask after 1ms. Can you have a look and give some comments on that? Thanks! Best

flight 8091 xen-unstable real [real] http://www.chiark.greenend.org.uk/~xensrcts/logs/8091/ Regressions :-( Tests which did not succeed and are blocking: test-amd64-i386-rhel6hvm-intel 12 guest-localmigrate/x10 fail REGR. vs. 8071 Tests which did not succeed, but are not blocking, including regressions (tests previously passed) regarded as allowable: test-amd64-amd64-xl-pcipt-intel 9

lspci shows MSI enabled for PCI device. PCI passthrough works fine. However, as soon as the MSI driver for card is insmodded, kernel panics. This is on xen-unstable. Tried the same with xen-3.3.0 which is supposed to have MSI passthrough, but the same guest shows MSI as disabled. Any else seen this bug, or know of a workaround ? Trace is as follows : ------------[ cut here ]------------

Hi all, This is our nightly testing report for c/s 17917; no new issue today, and bug #1286 got fixed. Fixed issue: ============================================== 1. guest cannot be created with two disks appended. http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1286 Old issues: ============================================== 1. dom0 hangs with io errors printed while booting hvm

Hello, More information and a patch for the bug. -- Pasi ----- Forwarded message from George Dunlap <George.Dunlap at eu.citrix.com> ----- From: George Dunlap <George.Dunlap at eu.citrix.com> To: Jan Beulich <JBeulich at novell.com> Cc: Sander Eikelenboom <linux at eikelenboom.it>, Jeremy Fitzhardinge <jeremy at goop.org>, Yunhong Jiang <yunhong.jiang at

This patch implements cpu offline feature. Best Regards Haitao Shan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Currently, Xen does not support injecting an NMI to HVM guest OS. Adding this feature is necessary for those softwares which depend on NMI to function correctly, such as KDB and oprofile. The attached patch allows NMI to be injected to guest OS in NMIP capable platforms. It also enables to queue an NMI and then inject it as soon as possible. Signed-off-by: Haitao Shan

So, Keir, can you please check in this patch? Thanks Yunhong Jiang >-----Original Message----- >From: xen-devel-bounces@lists.xensource.com >[mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of >John Clemens >Sent: Tuesday, February 28, 2006 1:35 AM >To: Jiang, Yunhong >Cc: Li, Xin B; xen-devel@lists.xensource.com >Subject: [Xen-devel] Re: [PATCH] Fix qemu-dm

There is a BUG_ON() at xen/arch/x86/physdev.c:169 which appears to be dependent upon guest behavior (should close event channel before un-mapping pirq), rather than on internal hypervisor state. In 2.6.18, this likely goes unnoticed because pci_device_shutdown() only calls all the driver shutdown routines. In newer kernels, however, it also calls pci_msi_shutdown() and pci_msix_shutdown(), which