similar to: shared memory and event channel

# HG changeset patch # User h00166998@h00166998.china.huawei.com # Date 1329462865 -28800 # Node ID 9fd12f919ddbd15927117eff42149664dba698ca # Parent b75664e5390583c5d2075c82a14245bc941b3aaf x86/mm: Make sure the event channel is released accurately In xenpaging source code,there is an interdomain communication between dom0 and domU. In mem_event_enable(),the function

Hi All, I am trying to provide services to guest VMs where I wish to run guest VMs in a loop. I wish to use a core to schedule a guest VM, service it eg. execute an ISR etc and then return to the context of Xen on that core, so that I can then schedule the next VM on that core. In doing all this, the goal is to avoid the calls to VMEntry and VMExit. Is there a workaround for this to be done or

I would like to have VMware modules running in the XEN kernel, NOT in DOM0 kernel but outside at the hypervisor level, is that possible? Architecturally, I noticed that xen subbranch does not implement any modules loading. If I were to load the VMware modules directly as an ELF image, will it break any existing architectural feature in XEN? Thanks :-).

I am not clear with the working of hypervisor xen. How does an instruction executed by kernel in Ring0 of DomU gets mapped or executed by hypervisor and then is excuted in Dom0. Is this thing some where on the wiki page? -- Tapas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

I am not clear with the working of hypervisor xen. How does an instruction executed by kernel in Ring0 of DomU gets mapped or executed by hypervisor and then is excuted in Dom0. Is this thing some where on the wiki page? -- Tapas _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

From 159251a04afcdcd8ca08e9f2bdfae279b2aa5471 Mon Sep 17 00:00:00 2001 From: Liu Jinsong <jinsong.liu@intel.com> Date: Thu, 31 Oct 2013 06:38:15 +0800 Subject: [PATCH 4/4] XSA-60 security hole: flush cache when vmentry back to UC guest This patch flush cache when vmentry back to UC guest, to prevent cache polluted by hypervisor access guest memory during UC mode. The elegant way to do this

Hello, this patch introduces HVM tracing: one tracing class for both, SVM and VMX. It adds several new trace events. So we can differentiate between them in the xentrace formats file and format each event''s data items appropriately. With this patch the xentrace_format output is much more informative. The previous simple tracing in SVM and VMX is completely replaced. Unfortunately I

Hello, all. I want to run VMWare on my dom0, for those special occasions when I need to boot unmodified OSes. I found some messages from 2005 on this list that explained that it''s not possible to run VMWare on a xen host. (Example message pasted below..) Well, it''s 2007 now.. Is it possible yet? Before you ask, no, I don''t have hardware support for virtualization.

From e2d47e2f75bac6876b7c2eaecfe946966bf27516 Mon Sep 17 00:00:00 2001 From: Liu Jinsong <jinsong.liu@intel.com> Date: Tue, 26 Nov 2013 04:53:17 +0800 Subject: [PATCH] VMX: wbinvd when vmentry under UC This patch flush cache when vmentry back to UC guest, to prevent cache polluted by hypervisor access guest memory during UC mode. However, wbinvd is a _very_ time consuming operation, so 1.

From: Yang Zhang <yang.z.zhang@Intel.com> The follwoing patches are adding the Posted Interrupt supporting to Xen: Posted Interrupt allows vAPIC interrupts to inject into guest directly without any vmexit. - When delivering a interrupt to guest, if target vcpu is running, update Posted-interrupt requests bitmap and send a notification event to the vcpu. Then the vcpu will handle this

I recently realized that the original way of dealing with the DebugCtl MSR on VMX failed to make use of the dedicated guest VMCS field. This is being fixed with this patch. What is puzzling me to a certain degree is that while there is a guest VMCS field for this MSR, there''s no equivalent host load field, but there''s also no indication that the MSR would be cleared during a

> + > +/* The exitcode is in native SVM/VMX format. The forced exitcode > + * is in generic format. > + */ Introducing a 3rd format of exitcode is over-complicated IMO. > +enum nestedhvm_vmexits > +nestedhvm_vcpu_vmexit(struct vcpu *v, struct cpu_user_regs *regs, > + uint64_t exitcode) > +{ I doubt about the necessary of this kind of wrapper. In single layer

Hi Sir, I have a question regarding the security of Xen. What are the security threats in with Intel VT-x. Thanks, Praveen Kushwaha ________________________________________________________________________ _____________________ NEC HCL System Technologies Ltd., 4th Floor, Tower B, Logix Techno Park, Noida | Tel: 120 436 6777 Extn 748

Hi can i set up a group of SIP users and forward a call to it? I am looking for a group, not for a queue. I won't listen any musinc on hold, and i won't that someone has to pay if nobody of the user's in the group accept the call. Can i do that? Thanks to all

I want to know any difference between writing, reading and shadow page table (for example performance). I am thankful for any help or resource for that. -- Best Regards Mohamad Taghi Mir Mohamad Rezaie Iran University of Science and Technology Department of Computer Science & Engineering System Software Group _______________________________________________ Xen-devel mailing list

Hello all, I know that the question: Is it possible to run quemu inside Xen domU or run Xen domain 0 on quemu have discussed earlier in this mail list. As far as I remember this is possible except such a configuration where kquemu acceleration is in use. But what about HVM-capable systems? Please tell me are there the same restrictions for the hvm-capable systems? Thank you! -- WBR,

int.patch: - Supports only level-triggered interrupts. Edge interrupts support will be added shortly (should be fairly simple) - Change polarity trick: in order to reflect the external device''s assertion state, the ioapic pin gets its polarity changed whenever an interrupt occur. So an interrupt is generated when the _external_ line is asserted (then,

The patch enables x86_32 PAE unmodified guests on 64-bit Xen when the hvm feature is present. We tested only Linux at this point, and we''ll improve the functionality as we test other guests. The SVM needs the equivalent changes to the vmc.c to get this functionality working, but this patch does not break the build. Signed-off-by: Jun Nakajima <jun.nakajima@intel.com>

I''ve been trying to virtualize SCO OpenServer 5.0.6 for various reasons, and found that the Xensource 4.x doesn''t support it, nor does the open source Xen 3.x in any of the environments I''ve tried. It works on VMware, but for various reasons I prefer to use Xen on my Dom0. (I like open source, and the base OS for the commercial reasons is much, much more recent, and

Hi All, The interface manual says - grant tables provide a generic mechanism sharing between domains. Subsequent lines suggest mechanism sharing between only unpriviliged domains. Can grant tables be used for this capability based shared memory communication between dom0 and domUs? Thanks ~psr -- pradeep singh rautela "proud to be a TUXedo, BSDemons you are a little late" - me