similar to: question about memory auto-translate and paravirtual and no pseudophysical overlay

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

In order to be meaningful and usable together with other measuring methods, their use in my opinion should impose as little overhead as possible. With that, I wonder why per-cpu counters use atomic operations. Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Hi, Maybe it''s a dumb question, but I''m actually trying to understand how the memory allocation works within Xen. I try to give 128MB to a domU and see if it increases for example when I "nano" a 500mb file, but the process just get killed when it reachs the 128MB memory limit. How do I configure the guests so they can ask for more memory until a limit is reached

I can boot a 64-bit HVM image on my SVM-system, and it goes quite a long way before it crashes (due to not finding the hard-disk image and thus no root FS - which I think may well be the configuration file). But if I set debug=y in the Rules.mk, I don''t get very far at all - it crashes well before it gets to any user-mode (Ring3) - in fact, I think it''s crashing pretty much as

We use XENMEM_add_to_physmap_range which is the preferred interface for foreign mappings. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> --- arch/arm/include/asm/xen/interface.h | 1 + arch/arm/xen/enlighten.c | 100 +++++++++++++++++++++++++++++++++- arch/x86/include/asm/xen/interface.h | 1 + include/xen/interface/memory.h | 18 ++++++ 4 files changed,

Hello, I''m new to Xen and especially to the hypervisor code. I''m working off a 3.0.4.1 base and have the following questions regarding the memory management code for an x86, 32-bit platform (capable of supporting PAE). I''m doing some research into providing grant table hypercall support from a Windows 2003 HVM. I have made all the necessary changes to allow the

Hi, In many places xen uses "unsigned long" instead of the l*_pgentry_t types to pass around page table entries. Here is a patch which fixes this in a number of places (mostly in shadow mode code). Thats what I''ve trapped in so far, maybe more of these patches follow. Fixing this is needed for adding PAE support to xen. In PAE paging mode the page table entries are 64 bit

The following dump-core patches changes its format into ELF, adds PFN-GMFN table, HVM support, and adds experimental IA64 support. - ELF format Program header and note section are adopted. - HVM domain support To know the memory area to dump, XENMEM_set_memory_map is added. XENMEM_memory_map hypercall is for current domain, so new one is created. and hvm domain builder tell xen its

Hi Jeremy. Here are the 3 patches for ia64/xen support. The first one is just to move manage.c under drivers/xen. This is trivial. The second and third ones are for compilation fix on ia64. You may want to postpone those 2 patches to make your merge task easy as you said before. thanks, Diffstat arch/x86/xen/Makefile | 2 +- drivers/xen/Makefile | 2 +-

Hi Jeremy. Here are the 3 patches for ia64/xen support. The first one is just to move manage.c under drivers/xen. This is trivial. The second and third ones are for compilation fix on ia64. You may want to postpone those 2 patches to make your merge task easy as you said before. thanks, Diffstat arch/x86/xen/Makefile | 2 +- drivers/xen/Makefile | 2 +-

This series implements ballooning for Xen on ARM and builds and Mukesh''s PVH privcmd stuff to implement foreign page mapping on ARM, replacing the old "HACK: initial (very hacky) XENMAPSPACE_gmfn_foreign" patch. The baseline is a bit complex, it is basically Stefano''s xenarm-forlinus branch (commit bbd6eb29214e) merged with Konrad''s linux-next-pvh branch

hi, How can I get corresponding shadowed page number of a virtual address in vm? -- Best Regards, Mohamad Rezaei

I am using Xen 3.0.4 vmx (on Intel VT). I need to map in a foreign page, given its mfn (not gpfn), into dom0. I used to do this quite well with Xen 3.0.2. However, when I ported my code to Xen 3.0.4, things seem to have changed. Does xc_map_foreign_range accept an mfn or a gpfn as its argument? It seems to be accepting gpfn in 3.0.4. Is that true? If so, can anyone please suggest a way for

Hi Keir: These two patches remove the need for netloop by performing the copying in netback and only if it is necessary. The rationale is that most packets will be processed without delay allowing them to be freed without copying at all. So instead of copying every packet destined to dom0 we''ll only copy those that linger longer than a specified amount of time (currently 0.5s). As it

Like others on this list I am trying to employ the VTD-NEO patches in Xen 3.2 unstable to assign the internal graphics device to Dom1/Vista. I have removed the Cirrus Logic emulated device from qemu and replaced the Cirrus Logic vgabios with the the actual vgabios from my GPU. However I am hitting an xen assert and was hoping someone might be able to point me in the right direction. Below

A number of build problems crept in once again. Fix them. Signed-off-by: Jan Beulich <jbeulich@suse.com> --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -683,7 +683,7 @@ long do_memory_op(unsigned long cmd, XEN mfn = get_gfn_untyped(d, xrfp.gpfn); if ( mfn_valid(mfn) ) - guest_physmap_remove_page(d, xrfp.gpfn, mfn, PAGE_ORDER_4K); +

2013/10/29, mail fetch <fetchmail.0104@gmail.com>: > Hi all, > > I just saw a know bug from wiki that network doesn''t work in guest in > arndale board : > > Network doesn''t work in the guest > > Contact: julien.grall@citrix.com > Status: In progress > Description: Network doesn''t work in the guest when an ehternet cable is > plugged

Hello, The fast emulation path patch introduced a bug when we have an event injection during a write to a pagetable: after removing shadows we still jump to the done label, releasing the lock even if we aren''t grabbing it. Inline patch fixes this. Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com> diff -r 8848d9e07584 xen/arch/x86/mm/shadow/multi.c ---

Hi. When I compiled xen-3.3-testing with DEBUG_TRACE_DUMP in xen/include/xen/lib.h turned on, I got some errors at SHADOW_PRINTK. The following patch will fix the arguments passed to SHADOW_PRINTK in xen/arch/x86/mm/shadow/common.c and xen/arch/x86/mm/shadow/multi.c. Although I haven''t tested, it is the same for xen-unstable.hg Thanks, Yoshi Signed-off-by: Yoshi Tamura

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) &&