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Eduardo Habkost 6a4784ce6b target-i386: Disable kvm_mmu by default 
KVM_CAP_PV_MMU capability reporting was removed from the kernel since
v2.6.33 (see commit a68a6a7282373), and was completely removed from the
kernel since v3.3 (see commit fb92045843). It doesn't make sense to keep
it enabled by default, as it would cause unnecessary hassle when using
the "enforce" flag.

This disables kvm_mmu on all machine-types. With this fix, the possible
scenarios when migrating from QEMU <= 1.3 to QEMU 1.4 are:

------------+----------+----------------------------------------------------
 src kernel | dst kern.| Result
------------+----------+----------------------------------------------------
 >= 2.6.33  | any      | kvm_mmu was already disabled and will stay disabled
 <= 2.6.32  | >= 3.3   | correct live migration is impossible
 <= 2.6.32  | <= 3.2   | kvm_mmu will be disabled on next guest reboot *
------------+----------+----------------------------------------------------

 * If they are running kernel <= 2.6.32 and want kvm_mmu to be kept
   enabled on guest reboot, they can explicitly add +kvm_mmu to the QEMU
   command-line. Using 2.6.33 and higher, it is not possible to enable
   kvm_mmu explicitly anymore.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-01-15 04:09:14 +01:00
audio softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
backends Make all static TypeInfos const 2013-01-10 15:11:53 -06:00
block Merge remote-tracking branch 'kwolf/for-anthony' into staging 2013-01-14 10:26:26 -06:00
bsd-user misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
default-configs Add TEWS TPCI200 IndustryPack emulation 2013-01-14 13:26:12 -06:00
disas target-s390: Fix disassembly of cpsdr 2013-01-05 12:00:00 -08:00
docs pci,virtio 2013-01-14 10:23:50 -06:00
fpu softfloat: Implement uint64_to_float128 2013-01-05 10:12:50 +00:00
fsdev qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
gdb-xml
hw exec: Return CPUState from qemu_get_cpu() 2013-01-15 04:09:14 +01:00
include kvm: Add fake KVM constants to avoid #ifdefs on KVM-specific code 2013-01-15 04:09:14 +01:00
ldscripts build: create ldscripts/ 2012-12-19 08:29:06 +01:00
libcacard build: fold trace-obj-y into libqemuutil.a 2013-01-12 18:42:51 +01:00
linux-headers kvm: Update kernel headers 2013-01-07 17:37:11 +01:00
linux-user Merge branch 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf 2013-01-12 12:47:02 +00:00
net qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
pc-bios Update seabios to a810e4e72a0d42c7bc04eda57382f8e019add901 2012-12-20 08:19:40 +01:00
pixman@97336fad32 qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
qapi build: move base QAPI files to libqemuutil.a 2013-01-12 18:42:51 +01:00
qga Merge remote-tracking branch 'stefanha/trivial-patches' into staging 2013-01-11 08:43:18 -06:00
QMP qmp: add pull_event function 2012-10-24 10:26:22 +02:00
qobject build: move qobject files to qobject/ and libqemuutil.a 2013-01-12 18:42:50 +01:00
qom build: consolidate multiple variables into universal-obj-y 2013-01-12 18:42:50 +01:00
roms Update seabios to a810e4e72a0d42c7bc04eda57382f8e019add901 2012-12-20 08:19:40 +01:00
scripts Merge branch 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf 2013-01-12 12:47:02 +00:00
slirp slirp: remove unused field tt 2013-01-12 12:26:16 +00:00
stubs stubs: fully replace qemu-tool.c and qemu-user.c 2013-01-12 17:19:08 +01:00
sysconfigs/target Eliminate cpus-x86_64.conf file 2012-09-21 15:12:58 +02:00
target-alpha cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-arm cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-cris cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-i386 target-i386: Disable kvm_mmu by default 2013-01-15 04:09:14 +01:00
target-lm32 cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-m68k cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-microblaze cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-mips exec: Return CPUState from qemu_get_cpu() 2013-01-15 04:09:14 +01:00
target-openrisc cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-ppc cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-s390x cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-sh4 cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-sparc cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
target-unicore32 configure: allow disabling pixman if not needed 2012-12-23 14:38:52 -06:00
target-xtensa target-xtensa: fix search_pc for the last TB opcode 2012-12-22 12:09:24 +00:00
tcg tcg-i386: use LEA for 3-operand 64-bit addition 2013-01-12 12:45:56 +00:00
tests build: fold trace-obj-y into libqemuutil.a 2013-01-12 18:42:51 +01:00
trace build: fold trace-obj-y into libqemuutil.a 2013-01-12 18:42:51 +01:00
ui qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
util build: move libqemuutil.a components to util/ 2013-01-12 18:42:50 +01:00
.exrc qemu: add .exrc 2012-09-07 09:02:44 +03:00
.gitignore qemu-ga: sample fsfreeze hooks 2013-01-08 16:38:12 -06:00
.gitmodules pixman: add submodule 2012-11-01 13:10:06 +01:00
.mailmap Add a .mailmap to map pre-git-conversion authors to friendly names 2011-12-12 17:06:21 -06:00
aio-posix.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
aio-win32.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
arch_init.c ram: refactor ram_save_block() return value 2012-12-20 23:09:40 +01:00
async.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
balloon.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
block-migration.c savevm: New save live migration method: pending 2012-12-20 23:09:25 +01:00
block.c block: make qiov_is_aligned() public 2013-01-14 10:06:56 +01:00
blockdev-nbd.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
blockdev.c qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
blockjob.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
bt-host.c softmmu: move remaining include files to include/ subdirectories 2012-12-19 08:32:46 +01:00
bt-vhci.c softmmu: move remaining include files to include/ subdirectories 2012-12-19 08:32:46 +01:00
Changelog fix some common typos 2012-05-14 07:27:24 +02:00
cmd.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
cmd.h Delete useless 'extern' qualifiers for functions 2011-01-23 16:21:20 +00:00
CODING_STYLE Replace Qemu by QEMU in internal documentation 2012-04-07 13:58:25 +00:00
configure Merge remote-tracking branch 'kraxel/pixman.v6' into staging 2013-01-14 10:27:41 -06:00
COPYING
COPYING.LIB
coroutine-gthread.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
coroutine-sigaltstack.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
coroutine-ucontext.c gcc: rename CONFIG_PRAGMA_DISABLE_UNUSED_BUT_SET to CONFIG_PRAGMA_DIAGNOSTIC_AVAILABLE 2013-01-12 12:42:53 +00:00
coroutine-win32.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
cpu-exec.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
cpus.c kvm: Pass CPUState to kvm_init_vcpu() 2013-01-15 04:09:13 +01:00
cputlb.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
device_tree.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
disas.c monitor: move include files to include/monitor/ 2012-12-19 08:31:32 +01:00
dma-helpers.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
dump-stub.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
dump.c exec: change RAM list to a TAILQ 2012-12-20 23:08:47 +01:00
exec.c exec: Return CPUState from qemu_get_cpu() 2013-01-15 04:09:14 +01:00
gdbstub.c cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
HACKING HACKING: List areas where we may rely on impdef C behaviour 2012-12-08 14:27:40 +00:00
hmp-commands.hx trace: Remove "info trace" from documents 2012-11-16 13:35:48 +01:00
hmp.c softmmu: move remaining include files to include/ subdirectories 2012-12-19 08:32:46 +01:00
hmp.h qapi: move include files to include/qobject/ 2012-12-19 08:31:31 +01:00
iohandler.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
ioport.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
kvm-all.c kvm: Pass CPUState to kvm_init_vcpu() 2013-01-15 04:09:13 +01:00
kvm-stub.c kvm: Pass CPUState to kvm_init_vcpu() 2013-01-15 04:09:13 +01:00
LICENSE LICENSE: There is no libqemu.a anymore 2011-12-09 11:25:22 +00:00
main-loop.c Check return values from g_poll and select 2013-01-09 11:03:05 -06:00
MAINTAINERS Merge branch 's390-reorg' of git://repo.or.cz/qemu/rth 2013-01-12 12:46:57 +00:00
Makefile Merge remote-tracking branch 'kraxel/pixman.v6' into staging 2013-01-14 10:27:41 -06:00
Makefile.objs build: fold trace-obj-y into libqemuutil.a 2013-01-12 18:42:51 +01:00
Makefile.target build: improve quiet output for .stp rules 2013-01-12 18:42:51 +01:00
memory.c memory: introduce memory_region_test_and_clear_dirty 2012-12-20 23:09:39 +01:00
memory_mapping-stub.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
memory_mapping.c exec: change RAM list to a TAILQ 2012-12-20 23:08:47 +01:00
migration-exec.c migration: make writes blocking 2012-12-20 23:09:25 +01:00
migration-fd.c migration: make writes blocking 2012-12-20 23:09:25 +01:00
migration-tcp.c migration: make writes blocking 2012-12-20 23:09:25 +01:00
migration-unix.c migration: make writes blocking 2012-12-20 23:09:25 +01:00
migration.c migration: merge QEMUFileBuffered into MigrationState 2012-12-20 23:09:40 +01:00
monitor.c cpu: Move cpu_index field to CPUState 2013-01-15 04:09:13 +01:00
nbd.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
os-posix.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
os-win32.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
page_cache.c migration: move include files to include/migration/ 2012-12-19 08:31:32 +01:00
qapi-schema-test.json qapi: add struct-errors test case to test-qmp-output-visitor 2012-03-27 09:11:00 -03:00
qapi-schema.json slirp: Add domain-search option to slirp's DHCP server 2012-11-15 10:27:14 +01:00
qdict-test-data.txt
qemu-bridge-helper.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-char.c qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
qemu-coroutine-io.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-coroutine-lock.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-coroutine-sleep.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-coroutine.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qemu-doc.texi Documentation: Update image format information 2012-11-30 11:33:24 +01:00
qemu-img-cmds.hx qemu-img: document 'info --backing-chain' 2012-10-24 10:26:19 +02:00
qemu-img.c qemu-img: report size overflow error message 2013-01-02 16:08:56 +01:00
qemu-img.texi Documentation: Update image format information 2012-11-30 11:33:24 +01:00
qemu-io.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-log.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
qemu-nbd.c block: move include files to include/block/ 2012-12-19 08:31:31 +01:00
qemu-nbd.texi Replace Qemu by QEMU in user visible documentation 2012-04-07 13:58:06 +00:00
qemu-options-wrapper.h vl.c: In qemu -h output, only print options for the arch we are running as 2011-12-19 10:27:33 -06:00
qemu-options.h vl.c: Move option generation logic into a wrapper file 2011-12-19 10:27:33 -06:00
qemu-options.hx spice-qemu-char: add spiceport chardev 2012-12-17 14:01:41 +01:00
qemu-seccomp.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
qemu-tech.texi qemu-tech.texi: update implemented xtensa features list 2012-11-29 13:00:52 -06:00
qemu-timer.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
qemu.sasl
qmp-commands.hx Merge remote-tracking branch 'kwolf/for-anthony' into staging 2012-10-29 10:34:05 -05:00
qmp.c softmmu: move remaining include files to include/ subdirectories 2012-12-19 08:32:46 +01:00
qtest.c softmmu: move remaining include files to include/ subdirectories 2012-12-19 08:32:46 +01:00
readline.c readline: avoid memcpy() of overlapping regions 2013-01-08 10:00:26 +01:00
README Update README 2011-12-11 17:50:43 -06:00
rules.mak build: move version-obj-y to the generic LINK rule 2013-01-12 18:42:51 +01:00
savevm.c savevm: Remove MinGW specific code which is no longer needed 2013-01-11 09:35:11 +01:00
spice-qemu-char.c Merge remote-tracking branch 'bonzini/header-dirs' into staging 2012-12-19 17:15:39 -06:00
tcg-runtime.c
tci.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
thread-pool.c misc: move include files to include/qemu/ 2012-12-19 08:32:39 +01:00
thunk.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00
TODO
trace-events Merge branch 'master' of git://git.qemu.org/qemu into prep-up 2013-01-10 21:52:28 +01:00
translate-all.c translate-all.c: Use tb1->phys_hash_next directly in tb_remove 2012-12-22 12:06:24 +00:00
translate-all.h exec: move TB handling to translate-all.c 2012-12-16 08:28:41 +00:00
user-exec.c Merge remote-tracking branch 'bonzini/header-dirs' into staging 2012-12-19 17:15:39 -06:00
VERSION Open up 1.4 development branch 2012-12-03 14:08:40 -06:00
version.rc
vl.c qemu-option: move standard option definitions out of qemu-config.c 2013-01-12 17:17:53 +01:00
xen-all.c xen: Simplify halting of first CPU 2013-01-15 04:09:14 +01:00
xen-mapcache.c softmmu: move include files to include/sysemu/ 2012-12-19 08:32:45 +01:00
xen-stub.c exec: move include files to include/exec/ 2012-12-19 08:31:31 +01:00

README 

Read the documentation in qemu-doc.html or on http://wiki.qemu.org

- QEMU team