> I'm trying to set it up here as well but I'm away from the office and
> getting the VGA console as far as my screen is proving tricky.
>
> Can you try:
> - xl pause <domid>
> - xen-hvmctx <domid> >before
> - xl save <domid> save-file
> - xl restore -p save-file
> - xl list
> - xen-hvmctx <new-domid> >after
> - diff -u before after
>
> There should be a few differences to do with timers and TSCs but there
> might be some other smoking gun. Of course it's possible that some
> piece of state got added that didn't get into the save/restore code at
> all. It's also possible that some vital piece of memory isn't getting
> saved properly but that's less likely to be AMD-specific.
>
I was able to remove the 'is domain running?' check from xend and
complete your request using xm.
# diff -u before after
--- before 2011-01-25 22:27:51.064451527 +1100
+++ after 2011-01-25 22:33:25.724619490 +1100
@@ -1,4 +1,4 @@
-HVM save record for domain 53
+HVM save record for domain 54
Entry 0: type 1 instance 0, length 24
Header: magic 0x54381286, version 1
Xen changeset 0
@@ -22,11 +22,11 @@
cs 0x0000001b (0x0000000000000000 + 0xffffffff / 0x00cfb)
ds 0x00000023 (0x0000000000000000 + 0xffffffff / 0x00cf3)
es 0x00000023 (0x0000000000000000 + 0xffffffff / 0x00cf3)
- fs 0x0000003b (0x000000007ffdc000 + 0x00000fff / 0x004f3)
- gs 0x00000000 (0x0000000000000000 + 0xffffffff / 0x00000)
+ fs 0x00000000 (0x00007f18bcbc6700 + 0xffffffff / 0x00000)
+ gs 0x00000000 (0xffff880028038000 + 0xffffffff / 0x00000)
ss 0x00000023 (0x0000000000000000 + 0xffffffff / 0x00cf3)
- tr 0x00000028 (0x0000000080157000 + 0x000020ab / 0x0008b)
- ldtr 0x00000000 (0x0000000000000000 + 0x00000000 / 0x00000)
+ tr 0x0000e040 (0xffff82c480263a80 + 0x00000067 / 0x0008b)
+ ldtr 0x00000000 (0x0000000000000000 + 0x0000ffff / 0x00000)
itdr (0x0000000081fff400 + 0x000007ff)
gdtr (0x0000000081fff000 + 0x000003ff)
sysenter cs 0x00000000 eip 0x0000000000000000 esp
0x0000000000000000
@@ -34,7 +34,7 @@
MSR flags 0xffffffffffffffff lstar 0x0000000000000000
star 0x0000000000000000 cstar 0x0000000000000000
sfmask 0x0000000000000000 efer 0x0000000000000800
- tsc 0x00000018cad69045
+ tsc 0x0000008fe39fad26
event 0x00000000 error 0x00000000
FPU: fcw 0x037f fsw 0x0000
ftw 0x00 (0x00) fop 0x0000
@@ -71,7 +71,7 @@
(0x00000000000000000000000000000000)
(0x00000000000000000000000000000000)
Entry 2: type 3 instance 0, length 8
- PIC: IRQ base 0x30, irr 0, imr 0xff, isr 0
+ PIC: IRQ base 0x30, irr 0x2, imr 0xff, isr 0
init_state 0, priority_add 0, readsel_isr 0, poll 0
auto_eoi 0, rotate_on_auto_eoi 0
special_fully_nested_mode 0, special_mask_mode 0
@@ -153,8 +153,8 @@
0x01c0: 0x0000000000000004 0x01d0: 0x0000000000000000
0x01e0: 0x0000000000000000 0x01f0: 0x0000000000000000
0x0200: 0x0000000000000000 0x0210: 0x0000000000000000
- 0x0220: 0x0000000000000000 0x0230: 0x0000000000040000
- 0x0240: 0x0000000000000004 0x0250: 0x0000000000000000
+ 0x0220: 0x0000000000000000 0x0230: 0x0000000000060000
+ 0x0240: 0x0000000000000006 0x0250: 0x0000000000000000
0x0260: 0x0000000000000000 0x0270: 0x0000000000000000
0x0280: 0x0000000000000000 0x0290: 0x0000000000000000
0x02a0: 0x0000000000000000 0x02b0: 0x0000000000000000
@@ -171,7 +171,7 @@
Entry 7: type 7 instance 0, length 16
PCI IRQs: 0x00000000000100800000000000000000
Entry 8: type 8 instance 0, length 8
- ISA IRQs: 0x0001
+ ISA IRQs: 0x0003
Entry 9: type 9 instance 0, length 8
PCI LINK: 0 0 0 0
Entry 10: type 10 instance 0, length 56
@@ -185,11 +185,11 @@
rd_state 0, wr_state 0, wr_latch 0, rw_mode 0
mode 0xff, bcd 0, gate 0x1
Entry 11: type 11 instance 0, length 16
- RTC: regs 0x48 0x00 0x27 0x00 0x22 0x00 0x02 0x25
+ RTC: regs 0x23 0x00 0x33 0x00 0x22 0x00 0x02 0x25
0x01 0x11 0x2a 0x42 0x00 0x80, index 0x0c
Entry 12: type 12 instance 0, length 1048
HPET: capability 0xf424008086a201 config 0
- isr 0 counter 0x1308081db
+ isr 0 counter 0x55323282f
timer0 config 0xf0000000000030 cmp 0
timer0 period 0 fsb 0
timer1 config 0xf0000000000030 cmp 0
@@ -200,8 +200,8 @@
ACPI PM: TMR_VAL 0xd9f446d, PM1a_STS 0x0, PM1a_EN 0x321
Entry 14: type 14 instance 0, length 240
MTRR: PAT 0x7010600070106, cap 0x508, default 0xc06
- var 0 0x00000000f0000000 0x000000fff8000800
- var 1 0x00000000f8000000 0x000000fffc000800
+ var 0 0x00000000f0000000 0x0000000000000000
+ var 1 0x00000000f8000000 0x0000000000000000
var 2 0x0000000000000000 0x0000000000000000
var 3 0x0000000000000000 0x0000000000000000
var 4 0x0000000000000000 0x0000000000000000
I don't really know a lot of what I'm looking at, but those cpu
registers shouldn't be different should they??? It almost looks like the
cpu was allowed to run for a few cycles at some point even though it was
paused.
I'll try the same on the intel box and see what happens.
Thanks
James
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