similar to: [RFC PATCH 2/3] AMD IOMMU: Implement p2m sharing

Signed-off-by: Wei Wang <wei.wang2@amd.com> -- AMD Saxony, Dresden, Germany Operating System Research Center Legal Information: AMD Saxony Limited Liability Company & Co. KG Sitz (Geschäftsanschrift): Wilschdorfer Landstr. 101, 01109 Dresden, Deutschland Registergericht Dresden: HRA 4896 vertretungsberechtigter Komplementär: AMD Saxony LLC (Sitz Wilmington, Delaware, USA)

There has been some progress, but still no joy. Definitely not intended for inclusion at this point. Tim, Wei, I added a Xen command line toggle to disable IOMMU and P2M table sharing. Tim, I verified that changes to p2m-pt.c don''t break shadow mode (64bit hypervisor and Win 7 guest). Hongkaixing, I incorporated your suggestion in patch 2, so I should add your Signed-off-by eventually.

This patch series restores the use of superpages when restoring or migrating a VM, while retaining efficient batching of 4k pages when superpages are not appropriate or available. Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Interesting read...apologies if it has been posted already. http://www.oracle.com/technology/pub/articles/saternos-rails.html -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060706/619e650a/attachment.html

Hi Tim, Could you please have a look at this bug? Thanks a lot. http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1774 Best Regards, Yongjie Ren (Jay) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

From: Zhang Xiantao <xiantao.zhang@intel.com> With virtual EPT support, L1 hyerpvisor can use EPT hardware for L2 guest''s memory virtualization. In this way, L2 guest''s performance can be improved sharply. According to our testing, some benchmarks can show > 5x performance gain. Signed-off-by: Zhang Xiantao <xiantao.zhang@intel.com> Zhang Xiantao (11):

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

The original: http://pastie.textmate.org/private/lqvrlyyvkv2kbugoxtiz6w Send your submissions to me by email or on #merb. I''ll blog it, and pick a winner. The winner does not mean it makes it into Merb, just means I personally like it best. But it might make it into Merb. # Scenario: # You have a simple application that lists all the monkeys at the zoo. # Every monkey has a

This patch series includes a series of bugs related to p2m, ept, and PoD code which were found as part of our XenServer product testing. Each of these fixes actual bugs, and the 3.4-based version of the patch has been tested thoroughly. (There may be bugs in porting the patches, but most of them are simple enough as to make it unlikely.) Each patch is conceptually independent, so they can each

Populate-on-demand: Check pages being returned by the balloon driver This patch series is the second result of my work last summer on decreasing fragmentation of superpages in a guests'' p2m when using populate-on-demand. This patch series is against 4.1; I''m posting it to get feedback on the viability of getting a ported version of this patch into 4.2. As with the previous

Hi all, this patch series enables xen-swiotlb on arm and arm64. It has been heavily reworked compared to the previous versions in order to achieve better performances and to address review comments. We are not using dma_mark_clean to ensure coherency anymore. We call the platform implementation of map_page and unmap_page. We assume that dom0 has been mapped 1:1 (physical address == machine

Signed-off-by: Jan Beulich <jbeulich@novell.com> --- 2009-01-27.orig/xen/drivers/passthrough/amd/iommu_map.c 2009-01-30 08:43:35.000000000 +0100 +++ 2009-01-27/xen/drivers/passthrough/amd/iommu_map.c 2009-01-30 08:46:29.000000000 +0100 @@ -461,8 +461,8 @@ int amd_iommu_map_page(struct domain *d, iommu_l2e = iommu_l2e_from_pfn(hd->root_table, hd->paging_mode, gfn); if (

On Wed 12-07-17 20:40:19, Wei Wang wrote: > This patch adds support for reporting blocks of pages on the free list > specified by the caller. > > As pages can leave the free list during this call or immediately > afterwards, they are not guaranteed to be free after the function > returns. The only guarantee this makes is that the page was on the free > list at some point in

On Wed 12-07-17 20:40:19, Wei Wang wrote: > This patch adds support for reporting blocks of pages on the free list > specified by the caller. > > As pages can leave the free list during this call or immediately > afterwards, they are not guaranteed to be free after the function > returns. The only guarantee this makes is that the page was on the free > list at some point in

Xen: 3.1.2 (or thereabouts), 64bit dom0: 2.6.18.8, pae pv-ops, 2.6.26 BUG: unable to handle kernel paging request at 69746174 IP: [<c015e221>] move_freepages+0x61/0xc0 *pdpt = 0000000204ed6007 Oops: 0002 [#1] SMP Modules linked in: Pid: 6859, comm: sh Not tainted (2.6.26-linode13 #1) EIP: 0061:[<c015e221>] EFLAGS: 00010002 CPU: 2 EIP is at move_freepages+0x61/0xc0 EAX: 69746174 EBX:

Xen: 3.1.2 (or thereabouts), 64bit dom0: 2.6.18.8, pae pv-ops, 2.6.26 BUG: unable to handle kernel paging request at 69746174 IP: [<c015e221>] move_freepages+0x61/0xc0 *pdpt = 0000000204ed6007 Oops: 0002 [#1] SMP Modules linked in: Pid: 6859, comm: sh Not tainted (2.6.26-linode13 #1) EIP: 0061:[<c015e221>] EFLAGS: 00010002 CPU: 2 EIP is at move_freepages+0x61/0xc0 EAX: 69746174 EBX:

On Thu 19-09-19 16:22:25, David Hildenbrand wrote: > virtio-mem wants to allow to offline memory blocks of which some parts > were unplugged, especially, to later offline and remove completely > unplugged memory blocks. The important part is that PageOffline() has > to remain set until the section is offline, so these pages will never > get accessed (e.g., when dumping). The pages

On Thu 19-09-19 16:22:25, David Hildenbrand wrote: > virtio-mem wants to allow to offline memory blocks of which some parts > were unplugged, especially, to later offline and remove completely > unplugged memory blocks. The important part is that PageOffline() has > to remain set until the section is offline, so these pages will never > get accessed (e.g., when dumping). The pages

The memory relating guest domain should be allocated from NUMA node on which the guest runs. Because the latency of the same NUMA node is faster than that of a different one. This patch fixes memory allocation for Address Translation Structure of VT-d. VT-d uses two types of Structures for DMA address translation. The one is Device Assignment Structure. The other is Address Translation

Attached are the patches to support super page with EPT. We only support 2M size. And shadow may still work fine with 4K pages. The patches can be split into 3 parts. Apply order is as attached. tool.diff To allocate 2M physical contiguous memory in guest except the first 2M and the last 2M. The first 2M covers special memory, and Xen use the last few pages in guest memory to do special