similar to: [Xen-ia64-devel] RE: Re: [PATCH] Disable auto-balloon on ia64

This is a fourth cut of the hypervisor patch of the proposed XENMEM_claim_pages hypercall/subop, taking into account feedback from Jan and Keir and IanC, plus some fixes found via runtime debugging (using privcmd only) and some added comments/cleanup. [Logistical note: I will be out tomorrow (Friday) plus US holidays next week so my responsiveness to comments may be slower for awhile. --djm]

The aim of this patch is to define a stable way in which PVH is going to do AP bringup. Since we are running inside of a HVM container, PVH should only need to set flags, cr3 and user_regs in order to bring up a vCPU, the rest can be set once the vCPU is started using the bare metal methods. Additionally, the guest can also set cr0 and cr4, and those values will be appended to the default values

With the lake of iommu, dom0 must have a 1:1 memory mapping for all these guest physical address. When the ballon decides to give back a page to the kernel, this page must have the same address as previously. Otherwise, we will loose the 1:1 mapping and will break DMA-capable device. Signed-off-by: Julien Grall <julien.grall@linaro.org> CC: Keir Fraser <keir@xen.org> CC: Jan Beulich

The ARM platform has no concept of PVMMU and therefor no HYPERVISOR_update_va_mapping et al. Allow this code to be compiled out when not required. In some similar situations (e.g. P2M) we have defined dummy functions to avoid this, however I think we can/should draw the line at dummying out actual hypercalls. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> --- arch/x86/xen/Kconfig

I have a 12GB 64-bit Linux HVM guest (CentOS 5.5). When I look at the e820 map in the guest, I see the following: BIOS-provided physical RAM map: BIOS-e820: 0000000000010000 - 000000000009e000 (usable) BIOS-e820: 000000000009e000 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 00000000f0000000 (usable) BIOS-e820:

Not just dom0. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> --- xen/arch/arm/domain.c | 3 +++ xen/arch/arm/domain_build.c | 3 --- xen/arch/arm/p2m.c | 2 +- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c index 5702399..4b38790 100644 --- a/xen/arch/arm/domain.c +++ b/xen/arch/arm/domain.c @@

# HG changeset patch # User yamahata@valinux.co.jp # Date 1188274001 -32400 # Node ID 2c9db26f1d0e0fdd4757d76a67f4b37ba0e40351 # Parent 58d131f1fb35977ff2d8682f553391c8a866d52c Make XEN_DOMCTL_destroydomain hypercall continuable. XEN_DOMCTL_destroydomain hypercall frees domain resources, especially it frees all pages of the domain. When domain memory is very large, it takes too long resulting in

# HG changeset patch # User hongkaixing<hongkaixing@huawei.com> # Date 1325149704 -28800 # Node ID 052727b8165ce6e05002184ae894096214c8b537 # Parent 54a5e994a241a506900ee0e197bb42e5f1d8e759 xenpaging:add a new array to speed up page-in in xenpaging This patch adds a new array named page_out_index to reserve the victim''s index. When page in a page,it has to go through a for loop

The initial values of the wallclock time in the shared info page are set for PVHVM guests when the hypercall page is initialized, since the hypercall page is not reinitialized on resume, the hypervisor wallclock time is not properly set on resume. Fix it by forcing an update of the wallclock values when the shared info page is mapped. Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>

Hi, I report a benchmark result of this week on IPF using ia64/xen-unstable and ia64/linux-2.6.18-xen. Building the xen-vnif PV-on-HVM driver failed. This issue has already fixed on staging trees by the following patches: http://xenbits.xensource.com/staging/xen-unstable.hg?rev/48c8244c47c7 http://xenbits.xensource.com/staging/linux-2.6.18-xen.hg?rev/670f8d5305d2 In LTP, test cases related

The patchset will add basic NUMA support to Xen (hypervisor only). We borrowed from Linux support for NUMA SRAT table parsing, discontiguous memory tracking (mem chunks), and cpu support (node_to_cpumask etc). The hypervisor parses the SRAT tables and constructs mappings for each node such as node to cpu mappings and memory range to node mappings. Using this information, we also modified the

Hello, I''m interested in using the mem_event API (or it''s LibVMI wrapper), but I''m interested in capturing write events anywhere in a domU guest''s memory, _and_ not just once for each page write, but every time a page is being written to. To this end, I''ve looked at the xen-access.c example, where at first all the pages are being monitored:

Hi, I am sending this e-mail once again because it probably has been lost in abyss of Xen-devel/LKLM list. Here is the second version of memory hotplug support for Xen guests patch. This one cleanly applies to git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git repository, xen/memory-hotplug head. Changes: - /sys/devices/system/memory/probe interface has been removed;

The following two patches are about how to speed up in xenpaging when page in pages. On suse11-64 with 4G memory,if we page out 2G pages,it will cost about 15.5 seconds, but take 2088 seconds to finish paging in.If page-in costs too much time,it will cause unmesurable problems when vm or dom0 access the paged_out page,such as BSOD,crash. What鈥檚 more,the dom0 is always in high I/O pressure.

Hi, I report a benchmark result of this week on IPF using ia64/xen-unstable and ia64/linux-2.6.18-xen. All test cases passed. TEST ENVIRONMENT Machine : Tiger4 Kernel : 2.6.18.8-xen Changeset : 18872:3acca92b9597 (ia64/xen-unstable) 753:17adc5c344fe (ia64/linux-2.6.18-xen) 131:9210bd27a551 (efi-vfirmware) b4d410a

Hi, I report a benchmark result of this week on IPF using ia64/xen-unstable and ia64/linux-2.6.18-xen. All test cases passed. TEST ENVIRONMENT Machine : Tiger4 Kernel : 2.6.18.8-xen Changeset : 17133:daf39fc8038a (ia64/xen-unstable) 442:0c1e6a1b8e90 (ia64/linux-2.6.18-xen) 70:b6ea2d6130fb (efi-vfirmware) Dom0 OS : RHEL4

Hi, I report a benchmark result of this week on IPF using xen-ia64-unstable. I did not test a VT-i domain because compiling PV-on-HVM drivers failed. In LTP, test cases related with direct IO still failed. # dio02 dio03 dio06 dio08 dio09 dio12 dio14 dio15 dio17 dio18 dio19 # dio21 dio22 dio23 dio25 dio26 dio27 dio28 And syslog10 failed but passed manually. TEST ENVIRONMENT Machine

Hi, I report a benchmark result of this week on IPF using ia64/xen-unstable and ia64/linux-2.6.18-xen. All test cases passed. TEST ENVIRONMENT Machine : Tiger4 Kernel : 2.6.18.8-xen Changeset : 18503:325904748847 (ia64/xen-unstable) 673:3161879fdf22 (ia64/linux-2.6.18-xen) 126:d255b2cfdd5a (efi-vfirmware) 0f3d638

Hi, I report a benchmark result of this week on IPF using ia64/xen-unstable and ia64/linux-2.6.18-xen. All test cases passed. TEST ENVIRONMENT Machine : Tiger4 Kernel : 2.6.18.8-xen Changeset : 16540:8ba08f2244b2 (ia64/xen-unstable) 337:4108b5c64f86 (ia64/linux-2.6.18-xen) 35:ebf7052731ec (efi-vfirmware) Dom0 OS : RHEL4

Hi, I report a benchmark result of this week on IPF using xen-ia64-unstable. I did not test a VT-i domain because linking PV-on-HVM drivers still failed. In LTP, test cases related with direct IO still failed. # dio02 dio03 dio06 dio08 dio09 dio12 dio14 dio15 dio17 dio18 dio19 # dio21 dio22 dio23 dio25 dio26 dio27 dio28 TEST ENVIRONMENT Machine : Tiger4 Kernel :