search for: yunhong

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, whi...

This issue was brought up about a year and a half ago. So I''ll bring it up again and see if anything happens. I''ve got an infiniband network and am attempting to pass the infiniband card through the host and give it to the guest. I''m working with standard CentOS 5.2 on both guest and host with their provided xen (3.0.3 ish). I''ve also attempted to install the

This issue was brought up about a year and a half ago. So I''ll bring it up again and see if anything happens. I''ve got an infiniband network and am attempting to pass the infiniband card through the host and give it to the guest. I''m working with standard CentOS 5.2 on both guest and host with their provided xen (3.0.3 ish). I''ve also attempted to install the

In sh_page_fault(), there are some code like following, why we think it is mmio only when paging_vcpu_mode_translate(v)? Thanks Yunhong Jiang /* What mfn is the guest trying to access? */ gfn = guest_l1e_get_gfn(gw.eff_l1e); gmfn = vcpu_gfn_to_mfn(v, gfn); mmio = (is_hvm_domain(d) && paging_vcpu_mode_translate(v) && mmio_space(gfn_to_paddr(gfn))); if ( !mmio &&...

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

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 som...

Hi all, I had posted about MCA support for Intel64 before. It had only a function to log the MCA error data received from hypervisor. http://lists.xensource.com/archives/html/xen-devel/2008-09/msg00876.html I attach patches that support not only error logging but also Page Offlining function. The page where an MCA occurs will offline and not reuse. A new flag ''PGC_reserved''

...ng x64 Windows uses CR8 to access TPR very frequently. This patch enables TPR shadow and allows mov-from/to-CR8 to access it directly; tests indicates it can boost greatly the performance of x64 Windows 2003. Thanks -- Dexuan Signed-off-by: Eddie Dong <eddie.dong@intel.com> Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Dexuan Cui <dexuan.cui@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

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:...

Ever since 3.0.2 we''ve been carrying this patch in our products. Since there was no indication that there would be anything wrong with the ''new'' IO-APIC ack method added back then, we finally decided to drop this patch recently from SLE11, to find that the subsequent release candidate failed to work on at least on system without using "ioapic_ack=old". With

...s immediately Right now, we have an exposure between the time the MSR is written and used by an instruction such as syscall. If there is a context switch and we do vmx_do_restore_msrs(), everything goes fine. But if we don''t, then we execute the syscall with the wrong MSR. Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Arun Sharma <arun.sharma@intel.com> Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, Keir: the gdtr information in oldctx is an address for guest, not for vmxassist. When access descriptor on guest gdt, we need to go through guest page table if guest enable paging. This error may happen if guest enable PE/PG in one instruction. This patch fix this issue. Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Xin Li <xin.b.li@intel.com> Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...C_VECTOR in the first round of assign_irq_vector since the current_vector is added immediately, I didn''t try to fix it, since now it can be allocated in the second round. The third patch (msi_vector_linux.patch) apply to linux hg tree, it fix one issue on msi-xen.c. Signed-off-by: Jiang, Yunhong <yunhong.jiang@intel.com> Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Currently the mmio_operands assumes writing to memory when operand 0 is register or immediate, this is false for cmp/test opcode. This patch resolve this problem, please review. Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...ing this procedure), and domain with device assigned. Also, it is complex to support following page types: a) page shared between multiple domain, like granted to dom0, b) page used for domain control, for example, the page used for hvm domain''s vlapic. Any feedback is welcome. Thanks Yunhong Jiang _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

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

Hi, milos/list, now I''m working on some code related to page sharing. Are there any document/wiki that show how to setup the page sharing environment, so that I can test my code? Checking the code, I noticed the only tapdisk/blktap will use this page sharing mechanism. I''m not sure HVM guest without PV driver can use blktap, so does page sharing support HVM guest? Sorry that

...t is set, then it will trigger a dma request again. So if the checking for the callbackfunction happens between trigger interrupt and clear callback function on dma thread, it will cause NULL function calling. After with domain 0 UP and smp platform, this situation can be reproduced easily. Thanks Yunhong Jiang This patch fix this issue by placing the interupt request in the end of dma thread. >-----Original Message----- >From: xen-devel-bounces@lists.xensource.com >[mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of >John Clemens >Sent: Thursday, February 23, 2006 6:12 AM...

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.

...++++++++++++++++++++++++++++++++++++--- include/asm-x86/msr.h | 2 include/asm-x86/vmx_vmcs.h | 9 + 4 files changed, 350 insertions(+), 21 deletions(-) Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Signed-off-by: Chengyuan Li <chengyuan.li@intel.com> Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Arun Sharma <arun.sharma@intel.com> Jun --- Intel Open Source Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel