QEMU

isapc and pc-0.10 to pc-0.13 memory layout changed in 2.0.0

Bug #1334307 reported by Don Slutz
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
QEMU
Fix Released
Undecided
Don Slutz

Bug Description

Using bash script:

for j in isapc pc-0.10 pc-0.11 pc-0.12 pc-0.13 pc-0.14;do for i in 17 20 21 21x;do echo machine=$j on $i;~/qemu/out$i/i386-softmmu/qemu-system-i386 -M $j -m 3.5G -monitor stdio -vnc 0.0.0.0:11 <<EOF
info mtree
q
EOF
done; done >~/zall

Where out17 is a build of v1.7.0, out20 is v2.0.0, out21 is master and out21x is with the provided patch you get:

build2:~/qemu>grep machine\\\|monitor\\\|pc.ram ~/zall
machine=isapc on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=isapc on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=isapc on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=isapc on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.10 on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.10 on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.10 on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.10 on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.11 on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.11 on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.11 on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.11 on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.12 on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.12 on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.12 on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.12 on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.13 on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.13 on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.13 on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000bfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000bfffffff
  0000000100000000-000000011fffffff (prio 0, RW): alias ram-above-4g @pc.ram 00000000c0000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.13 on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.14 on 17
QEMU 1.7.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.14 on 20
QEMU 2.0.0 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.14 on 21
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram
machine=pc-0.14 on 21x
QEMU 2.0.50 monitor - type 'help' for more information
  0000000000000000-00000000dfffffff (prio 0, RW): alias ram-below-4g @pc.ram 0000000000000000-00000000dfffffff
pc.ram
0000000000000000-00000000dfffffff (prio 0, RW): pc.ram

Revision history for this message
Don Slutz (dslutz) wrote :
Revision history for this message
Don Slutz (dslutz) wrote :
Revision history for this message
Don Slutz (dslutz) wrote :

patch with:

Message-Id: <email address hidden>

posted.

Revision history for this message
Don Slutz (dslutz) wrote :

commit 5f8632d3c3d7bc5ef24166ba7cf90fcfb2adbf7d
Author: Don Slutz <email address hidden>
Date: Wed Jun 25 16:19:07 2014 -0400

    pc: make isapc and pc-0.10 to pc-0.13 have 1.7.0 memory layout

Changed in qemu:
assignee: nobody → Don Slutz (dslutz)
status: New → Fix Committed
Revision history for this message
Don Slutz (dslutz) wrote :

Fixed in QEMU 2.1.0

Changed in qemu:
status: Fix Committed → Fix Released
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