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xen-ppc-devel
Re: [XenPPC] [linux-ppc-2.6] [XEN] The VIO rewrite
On Fri, Nov 03, 2006 at 10:02:41PM +0000, Xen patchbot-linux-ppc-2.6 wrote:
> # HG changeset patch
> # User Jimi Xenidis <jimix@xxxxxxxxxxxxxx>
> # Node ID 2a9c6a23cd1292e9ed361e33d640ce84a6fbdb53
> # Parent f4d382795e57b926cd82256bcb3a74c539731796
> [XEN] The VIO rewrite
>
> Once you figure it all out, its time to do a rewrite, lots of code I
> thougth I needed is now removed and less PPC specific code now exists.
>
> This patch uses the MEMORY_HOTPLUG system to add a region to the
> Kernel Linear Mapping that will be used exclusively to map in
> Granted/Foreign pages. This creates "struct page" objects in Linux
> which are necessary to perform VIO operations. When one of these
> pages are grant_mapped the pfn2mfn() translation in Xen is updated to
> reflect the association and the subsequent H_ENTER() from the domain
> will contain the correct mapping.
I gave the newtwork tests a spin with this patch. After 4 hours I
stopped the tests.
I see a bunch of these warnings on the xen console.
---
(XEN) allocated RMA for Dom[13]: 0x18000000[0x4000000]
(XEN) Domain[13].0: initializing
(XEN) WARN at /home/tony/Xen/xenppc-unstable.hg.working/xen/include/asm/mm.h:262
(XEN) [000000000000F8A0] 000000000040D8B4 .gmfn_to_mfn+0x70/0xa4
(XEN) [000000000000F930] 000000000040FE6C .__gnttab_copy+0x2c8/0x5a4
(XEN) [000000000000FA00] 00000000004101D4 .gnttab_copy+0x8c/0x130
(XEN) [000000000000FAE0] 00000000004104AC .do_grant_table_op+0x234/0x2d4
(XEN) [000000000000FC00] 000000000043D698 .hcall_xen+0xcc/0xfc
(XEN) [000000000000FC90] 000000000043D7BC .do_hcall+0x54/0x84
(XEN) [000000000000FD20] 00000000004524C8 ex_hcall_continued+0xe4/0xf4
(XEN) [000000000043C0FC] 800100017C0802A6
(XEN) SP (600000004bffffd8) is not in xen space
(XEN) (file=grant_table.c, line=890) could not get source frame
ffffffffffffffff.
(XEN) WARN at /home/tony/Xen/xenppc-unstable.hg.working/xen/include/asm/mm.h:262
(XEN) [000000000000F8A0] 000000000040D8B4 .gmfn_to_mfn+0x70/0xa4
(XEN) [000000000000F930] 000000000040FE6C .__gnttab_copy+0x2c8/0x5a4
(XEN) [000000000000FA00] 00000000004101D4 .gnttab_copy+0x8c/0x130
(XEN) [000000000000FAE0] 00000000004104AC .do_grant_table_op+0x234/0x2d4
(XEN) [000000000000FC00] 000000000043D698 .hcall_xen+0xcc/0xfc
(XEN) [000000000000FC90] 000000000043D7BC .do_hcall+0x54/0x84
(XEN) [000000000000FD20] 00000000004524C8 ex_hcall_continued+0xe4/0xf4
(XEN) [000000000043C0FC] 800100017C0802A6
(XEN) SP (600000004bffffd8) is not in xen space
(XEN) (file=grant_table.c, line=890) could not get source frame
ffffffffffffffff.
---
On the bright side, asside from the fact the tests are taking a long time, at
least some of them are succeeding.
---
Blade4:~/xm-test # egrep '(PASS|FAIL|SKIP)' network_vio.output
XFAIL: 02_network_local_ping_pos.test
PASS: 03_network_local_tcp_pos.test
PASS: 04_network_local_udp_pos.test
XPASS: 05_network_dom0_ping_pos.test
PASS: 06_network_dom0_tcp_pos.test
PASS: 07_network_dom0_udp_pos.test
XFAIL: 11_network_domU_ping_pos.test
FAIL: 12_network_domU_tcp_pos.test
FAIL: 13_network_domU_udp_pos.test
---
Yours Tony
linux.conf.au http://linux.conf.au/ || http://lca2007.linux.org.au/
Jan 15-20 2007 The Australian Linux Technical Conference!
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