search for: pml4

I''m to porting a lightweight kernel to Xen 3.0.4-x86_64 and have run into a problem while setting the PML4. Xen complains that it has a bad type of ''PGT_writable_page'' (e8000001), while it expects 80000000. However, I''m almost certain that this is not the case. I added a routine to do a depth first search of the four page table levels looking for this machine frame and find...

Hi, When I read the code of do_update_va_mapping, I find that it update the pte entry in the line page table by looking up the line page table via guest_map_l1e() : 2998 <http://lxr.xensource.com/lxr/source/xen/arch/x86/mm.c?a=x86_64#L2998> int do_update_va_mapping <http://lxr.xensource.com/lxr/ident?a=x86_64;i=do_update_va_mapping>(unsigned long va, u64

Fixes made in version 2: 1) Use PML4[257] for ioremap of PCI mmcfg. As full 16-bit segment support would require 44-bits. Since each slot only has 39-bits, we support 2048 PCI segments for now. This can be easily expanded if deemed necessary in the future. 2) Integrated PCI mmcfg access with existing PCI config interface for x86_6...

Hey guys, I have the x86-64 domU building code for libxc just about ready. It totally gets through the library and creates the domain. But once it does it reboots the machine (and no output to show what happened via the serial console). What techniques would you guys use find out (excluding excessive printks ....I''m doing that right now) what is going on in xen and tracing back to the

I''m porting a light weight kernel to run under the Xen hypervisor and have run into a problem while trying to switch to my page tables on x86-64. After a minor problem with switching to the new PML4 table that was cleared up when Mark Williamson suggested mapping everything read-only in the current map before switching, as well as switching the memory management code to use the hypervisor calls to manipulate the pages and I now fault on the first write after the new mapping. The console error...

...;5> Not prepped yet! (repeated approx 550 times) <5> Stopped TE4XXP, Turned off DMA <5> Not prepped yet! (repeated approx 11000 times) <5> Unable to handle kernel paging request at ffffff0000034010 RIP: <5> <ffffffffa0163207>{:wct4xxp:t4_interrupt_gen2+63} <5> PML4 4ea063 PGD 1388067 PMD 1389067 PTE 0 <5> Oops: 0000 [1] SMP <5> CPU 1 <5> Modules linked in: zttranscode(U) wct4xxp(U) zaptel(U) crc_ccitt netconsole md5 ipv6 dm_mirror dm_mod button battery ac joydev ehci_hcd uhci_hcd hw_random bnx2 ext3 jbd cciss sd_mod scsi_mod <5> Pid: 1...

...; disk problem or perhaps a bug? And said you guys might know more about it. Dec 18 03:18:09 data3 kernel: Unable to handle kernel NULL pointer dereference at 0000000000000020 RIP: Dec 18 03:18:09 data3 kernel: <ffffffffa003cfc8>{:jbd:journal_dirty_metadata+71} Dec 18 03:18:09 data3 kernel: PML4 f4cb067 PGD 2d383067 PMD 0 Dec 18 03:18:09 data3 kernel: Oops: 0000 [1] SMP Dec 18 03:18:09 data3 kernel: CPU 2 Dec 18 03:18:09 data3 kernel: Modules linked in: md5 ipv6 i2c_dev i2c_core sunrpc dm_mod button battery ac uhci_hcd ehci_hcd e1000 ext3 jbd ata_piix libata sd_mod scsi_mod Dec 18 03:18:09...

...hance that the fix will make it into the centosplus kernel-module-xfs? Thanks, Steve The output of the crash is below: Nov 7 12:50:31 houla0 Unable to handle kernel paging request at 0000001116a20188 RIP: Nov 7 12:50:31 houla0 <ffffffff80309ec6>{schedule+2164} Nov 7 12:50:31 houla0 PML4 38432b067 PGD 0 Nov 7 12:50:31 houla0 Oops: 0000 [1] SMP Nov 7 12:50:31 houla0 CPU 2 Nov 7 12:50:31 houla0 Modules linked in: nfsd exportfs nfs lockd nfs_acl md5 ipv6 netconsole netdump autofs4 i2c_dev i2c_core sunrpc ipt_REJECT ipt_state iptable_filter ipt_MASQUERADE iptable_nat ip_con...