similar to: RE: Re: Will map_domain_page return NULL when fails onx86_32?

Hi, Can anybody shed light on the Xen function map_domain_page (in xen/arch/x86/x86_32/domain_page.c)? What is it doing? Jinpeng Wei _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com> CC: Keir Fraser <keir@xen.org> CC: Jan Beulich <JBeulich@suse.com> CC: Tim Deegan <tim@xen.org> CC: Ian Campbell <Ian.Campbell@citrix.com> CC: Ian Jackson <Ian.Jackson@eu.citrix.com> --- misc/coverity_model.c | 70 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+)

While looking at the origin of very frequently executed hypercalls (as usual, kernel builds are what''s being measured), I realized that the high page accessor functions in Linux would be good candidates to handle in the hypervisor - clearing or copying to/from a high page is a pretty frequent operation (provided there''s enough memory). However, the measured results

Keir, Ian, With PCI mmconfig option on, and with the PCI express enabled BIOS, the dom0 kernel reads the PCI config from fix-mapped PCI mmconfig space. The PCI mmconfig space is of 256MB size, and it''s access is implemented differently on i386 & x86_64. On x86_64 the whole 256MB is mapped in the Kernel virtual address space. On i386 it will consume too much of the kernels

While looking at the origin of very frequently executed hypercalls I realized that the high page accessor functions in Linux would be good candidates to handle in the hypervisor - clearing or copying to/from a high page is a pretty frequent operation (provided there''s enough memory in the domain). While prior to the first submission I only measured kernel builds (where the results are not

Is this PAE or non-PAE? Please can you try forceing emulation mode by toggling the "#if 0" in arch/x86/mm.c ptwr_do_page_fault The other thing to try is modifying set_pte_pfn_ma to call xen_l1_update rather than set_pte. You could try set_pte_at too. This will help narrow down the issue. Thanks, Ian > Keir, Ian, > With PCI mmconfig option on, and with the PCI express >

This patch clean up VMX builder. Since now we have vmxloader, old code loading linux kernel directly is not needed. 1. remove linux parameters. 2. remove init ramdisk. 3. remove e820 memmap config file parse. Also e820 map handling code is changed in vmx_setup_platform. 4. remove provisional GDT, and construct_init_guest_vmcs is updated greatly. 5. remove some ugly tailing space. Thanks Keir for

Hi Keir: IA64 has used foreign mapping interface like IA32, so this patch is not need. Pls don’t check in it. Sorry for the inconvenience. Good good study,day day up ! ^_^ -Wing(zhang xin) OTC,Intel Corporation ________________________________ From: Zhang, Xing Z Sent: 2006年12月5日 11:15 To: xen-devel@lists.xensource.com; Keir Fraser Subject: [xen-devel][Patch] add auto

So, Keir, can you please check in this patch? Thanks Yunhong Jiang >-----Original Message----- >From: xen-devel-bounces@lists.xensource.com >[mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of >John Clemens >Sent: Tuesday, February 28, 2006 1:35 AM >To: Jiang, Yunhong >Cc: Li, Xin B; xen-devel@lists.xensource.com >Subject: [Xen-devel] Re: [PATCH] Fix qemu-dm

x86:x2apic: Disable x2apic on x86-32 permanently x2apic initialization on x86_32 uses vcpu pointer before it is initialized. As x2apic is unlikely to be used on x86_32, this patch disables x2apic permanently on x86_32. It also asserts the sanity of vcpu pointer before dereference to prevent further misuse. Signed-off-by: Fengzhe Zhang <fengzhe.zhang@intel.com> diff -r 02c0af2bf280

Hi, Keir: the gdtr information in oldctx is an address for guest, not for vmxassist. When access descriptor on guest gdt, we need to go through guest page table if guest enable paging. This error may happen if guest enable PE/PG in one instruction. This patch fix this issue. Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com> Signed-off-by: Xin Li <xin.b.li@intel.com> Thanks

Ian, Keir, This patch is to boot 32-bit VMX guest on the 64-bit host. Double-compile is used to make both 64-bit guest and 32-bit guest can work, the shadow page-table uses current 64-bit shadow code''s structure to simulate 32-bit guest''s 2-level page-table. Signed-off-by: Chengyuan Li <chengyuan.li@intel.com> Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com>

Make sure MFN read from pte is valid before accessing the page info structure associated with it. Drop guest-to-machine-physical translation from ptwr code. Signed-off-by: Jan Beulich <jbeulich@novell.com> Index: 2007-05-14/xen/arch/x86/mm.c =================================================================== --- 2007-05-14.orig/xen/arch/x86/mm.c 2007-05-14 13:43:50.000000000 +0200 +++

Just noticed nobody has commented on this, so I took a look, and I can't see the problem (2.1.0 looks the same as 2.1.1 to me). What is supposed to be wrong? Duncan Murdoch On 5/23/2005 2:35 PM, pelzc at ohsu.edu wrote: > Full_Name: Carl Pelz > Version: 2.1.0 & 2.0.1 > OS: Windows 2000 > Submission from: (NULL) (137.53.64.158) > > > # Paste this all into an R

This patch changes DRM clients to not map the buffer by default. The buffer, like any buffer object, should be mapped and unmapped when needed. An unmapped buffer object can be evicted to system memory and does not consume video ram until displayed. This allows to use generic fbdev emulation with drivers for low-memory devices, such as ast and mgag200. This change affects the generic framebuffer

Hi, I have also posted this on GitHub but it isn?t clear that was the right place: https://github.com/WayneD/rsync/issues/522 iCloud Drive will evict files that are unused or when additional space is needed on the local drive. The evicted files are replace by "bookmark" files that allow MacOS to continue to report the files in the file system as though they were actually present. The

Hi, I am trying to release domU pages from page_list and xenpage_list after domU shutdown while retaining the rest of the domain information. To achieve this in __domain_finalise_shutdown i call domain_relinquish_resources. This is failing to release pages from page_list for type PGT_l2_page_tables and crashing dom0. To be specific, while testing on mini-os i saw that when

On Tue, Jul 07, 2015 at 11:29:38AM -0400, Ilia Mirkin wrote: > On Mon, Jul 6, 2015 at 8:42 PM, Andrew Chew <achew at nvidia.com> wrote: > > Hello, > > > > I am currently looking into ways to support fixed virtual address allocations > > and sparse mappings in nouveau, as a step towards supporting CUDA. > > > > CUDA requires that the GPU virtual address

Hi, i just want to know whether there are any alternative file systems for HP SFS. I heard that there is Cluster Gateway from Polyserve. Can anybody plz help me in finding more abt this Cluster Gateway. Thanks and Regards, Ashok Bharat -----Original Message----- From: lustre-discuss-bounces at lists.lustre.org on behalf of lustre-discuss-request at lists.lustre.org Sent: Tue 2/12/2008 3:18 AM

The summary stats for the xin and yin variables below are correct. However, if I use plot(xin,yin), an exception is thrown saying that "object xin is not found." Also, it is apparent that I can't successfully replace the x and y vectors with values from xin and yin. The four plots on one panel are showing but the range of x and y is only [0,1], and therefore, it seems like an