search for: xenpaging

# 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 from 0 to num_pages to find the right page to read,and it costs much time in this loop.After adding the page...

# HG changeset patch # User Olaf Hering <olaf@aepfle.de> # Date 1333120147 -7200 # Node ID 34d9828185501f6e7ea2c3c2a397176a8e54ef0a # Parent 80653c8ea1d19dfe6130396bbc77f766eb9f9fab xenpaging: add error code to indicate iommem passthrough Similar to the existing ENODEV and EXDEV error codes, add EMDEV to indicate that iommu passthrough is not compatible with paging. All error codes are just made-up return codes to give proper error messages in the pager. Also update the HAP related er...

# HG changeset patch # User h00166998@h00166998.china.huawei.com # Date 1328777881 -28800 # Node ID 68eae0b487aef8349f168518f56264ce61afb0a1 # Parent 9f4640e40d4f31563885427a5a8d9eae2e110514 xenpaging:add the dealing of MEM_EVENT_FLAG_EVICT_FAIL request in tools/xenpaging If a page is nominated but not evicted,then dom0 accesses the page,it will change the page''s p2mt to be p2m_ram_paging_in,and the req.flags is MEM_EVENT_FLAG_EVICT_FAIL;so it will fail in p2m_mem_paging_evict() becaus...

# HG changeset patch # User Roger Pau Monne <roger.pau@entel.upc.edu> # Date 1323768129 -3600 # Node ID 7697ee23b08b8eaca9aee4f6b79cf550a490bef7 # Parent 8a84f53376862427f254a017cb52c928dbdd3d32 xenpaging: remove XOPEN_SOURCE The XOPEN_SOURCE define was breaking the compilation under NetBSD. I''ve removed it becasue it is not necessary (at least under NetBSD). If it is necessary for Linux, we can add a ifdef conditional to remove this only under NetBSD. Signed-off-by: Roger Pau Monne <r...

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...

Hi,Olaf, I have some questions about event channel in Xenpaging to ask you. 1) In xenpaging it uses Inter-Domainain Commnication (IDC) between dom0 and domU to build bidirectional connection,but I found there is only an event channel notification from xen to dom0 when page faults happens.It seems that xenpaging_resume_page()->xc_evtchn_notify() doesn'...

I''m attempting to compile Xen 4 on RHEL4. Yes, I know RHEL4 is old and I should upgrade, but certain application vendors who cannot seem to stay current within 5 years are forcing me to stick with some older versions. Anyway, I''m getting the following error: make -C xenpaging install make[3]: Entering directory `/usr/src/redhat/BUILD/xen-4.0.0/tools/xenpaging'' gcc -O2 -fomit-frame-pointer -m64 -fno-strict-aliasing -std=gnu99 -Wall -Wstrict-prototypes -Wno-unused-value -Wdeclaration-after-statement -D__XEN_TOOLS__ -MMD -MF .xenpaging.o.d -D_LARGEFILE_SOURCE -...

Hi, Olaf we have tested the xenpaging feature and found some problems. (1) the test case like this : when we start a VM with POD enable, the xenpaging is started at the same time. this case will cause many problems ,finally, we fixed the BUG, the patch is attached below. (2) there is a very serious problem. we have observed many V...

Hi all, I''m trying to update my RPMs of 4.1.3 to work with 4.2.0, but I''m having some interesting problems with the packaging side of things. in 4.1.3, xenpaging was being built as /usr/sbin/xenpaging, however in 4.2.0 it is being built as /usr/lib/xen/bin/xenpaging. I''m currently using the following configure options in my .spec: ./configure --libdir=/%{_libdir} --prefix=/usr --bindir=/%{_bindir} --sbindir=/%{_sbindir} This is expanding to: ./...

# 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 alloc_unbound_xen_event_channel() allocates a free port for domU, and then it will be bound with dom0. When xenpaging tears down,it just frees dom0''s event channel port by xc_evtchn_...

The following two patches allow the parallel use of memsharing, xenpaging and xen-access by using an independent ring buffer for each feature. Please review. v2: - update mem_event_check_ring arguments, check domain rather than domain_id - check ring_full first because its value was just evaluated - check if ring buffer is initialized before calling mem_access_do...

Hi, I have some problems to configure the xen I''ve installed (3.3.1). The computer is a Intel Core 2 Duo, I''m using Ubuntu 8.10 and have linux in my dom0 and winxp pro in my domU. I have two cores and I''d like to set the affinity of dom0 to cpu0 and domU to cpu1 but I haven''t find the way of making this permanent. I''ve set cpus=1 in the domU config

Hi How do we get the number of page faults done by a guest in a scheduling epoch? Assuming only one VCPU per guest, can I get it from vcpu_info[]? I hope this is not a vey trivial question :) thanks Chintu -- View this message in context: http://xen.1045712.n5.nabble.com/Getting-the-page-fault-count-for-domU-tp4847541p4847541.html Sent from the Xen - Dev mailing list

The patch ''mem_event: use wait queue when ring is full'' I just sent out makes use of the waitqueue feature. There are two issues I get with the change applied: I think I got the logic right, and in my testing vcpu->pause_count drops to zero in p2m_mem_paging_resume(). But for some reason the vcpu does not make progress after the first wakeup. In my debugging there is one

Hello!. How can i use @releaseDomain from dom0 to subscribe for domain destruction? I''m try to add watch for @releaseDomain path with token equal of needed domain id. But when another domain dies, i get domain that i provide via token to xs_watch. Is that possible to get id of domain what released from xenstore? -- Vasiliy Tolstov, Clodo.ru e-mail: v.tolstov@selfip.ru jabber:

Patrick, there following patches fix xenpaging for me. Granttable handling is incomplete. If a page is gone, a GNTST_eagain should be returned to the caller to inidcate the hypercall has to be retried after a while, until the page is available again. Please review. Olaf _______________________________________________ Xen-devel mailing list...

Added two new sets of compile flags, and pass them to the check scripts, so libraries and includes are searched there also. Resend this patches because they suffered some modifications and where scattered along the mailing list. Please review, thanks Roger. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...ld errors caused by Werror in tdqcow_get_parent_id tools/blktap2: remove unneeded pointer dereferencing from img2qcow.c tools/blktap2: remove unneeded pointer dereferencing from qcow2raw.c tools/libvchan: fix function prototypes in node-select.c tools/memshr: fix build errors caused by Werror tools/xenpaging: fix build errors caused by -Werror tools/libvchan: fix build errors caused by Werror in io.c tools/blktap2: remove static string table from header file tools/blktap2: fix build errors caused by Werror, remove blkif_op_name tools/blktap2: remove unused labels tools/blktap+blktap2: fix build errors...

...ifeq ($(OCAML_TOOLS),y) OCAML_TOOLS := $(shell ocamlopt -v > /dev/null 2>&1 && echo "y" || echo "n") diff -r 2c6ff08e8b5b -r 7d62108a8936 tools/Makefile --- a/tools/Makefile +++ b/tools/Makefile @@ -45,6 +45,7 @@ SUBDIRS-y += remus SUBDIRS-$(CONFIG_X86) += xenpaging SUBDIRS-$(CONFIG_X86) += debugger/gdbsx SUBDIRS-$(CONFIG_X86) += debugger/kdd +SUBDIRS-$(CONFIG_TESTS) += tests # These don''t cross-compile ifeq ($(XEN_COMPILE_ARCH),$(XEN_TARGET_ARCH)) diff -r 2c6ff08e8b5b -r 7d62108a8936 tools/tests/Makefile --- /dev/null +++ b/tools/tests/Makefile...

...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. Please review. Olaf, I do not see errors when mapping pages prior to eviction. Let me know how it goes for you. If I unleash xenpaging on a domain for a non-ambitious target (64 MiBs paged out for one minute), we sail by just fine. But if I kick things up a notch, still dying on an VMEXIT_SHUTDOWN (a.k.a. triple fault). Not sure at all what to do next. Signed-off-by: Andres Lagar-Cavilla <andres@lagarcavilla.org> Signed-of...