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This is a reimplementation of prior versions which adds
the ability to define cpu models for contemporary processors.
The added models are likewise selected via -cpu <name>,
and are intended to displace the existing convention
of "-cpu qemu64" augmented with a series of feature flags.
A primary motivation was determination of a least common
denominator within a given processor class to simplify guest
migration. It is still possible to modify an arbitrary model
via additional feature flags however the goal here was to
make doing so unnecessary in typical usage. The other
consideration was providing models names reflective of
current processors. Both AMD and Intel have reviewed the
models in terms of balancing generality of migration vs.
excessive feature downgrade relative to released silicon.
This version of the patch replaces the prior hard wired
definitions with a configuration file approach for new
models. Existing models are thus far left as-is but may
easily be transitioned to (or may be overridden by) the
configuration file representation.
Proposed new model definitions are provided here for current
AMD and Intel processors. Each model consists of a name
used to select it on the command line (-cpu <name>), and a
model_id which corresponds to a least common denominator
commercial instance of the processor class.
A table of names/model_ids may be queried via "-cpu ?model":
:
x86 Opteron_G3 AMD Opteron 23xx (Gen 3 Class Opteron)
x86 Opteron_G2 AMD Opteron 22xx (Gen 2 Class Opteron)
x86 Opteron_G1 AMD Opteron 240 (Gen 1 Class Opteron)
x86 Nehalem Intel Core i7 9xx (Nehalem Class Core i7)
x86 Penryn Intel Core 2 Duo P9xxx (Penryn Class Core 2)
x86 Conroe Intel Celeron_4x0 (Conroe/Merom Class Core 2)
:
Also added is "-cpu ?dump" which exhaustively outputs all config
data for all defined models, and "-cpu ?cpuid" which enumerates
all qemu recognized CPUID feature flags.
The pseudo cpuid flag 'check' when added to the feature flag list
will warn when feature flags (either implicit in a cpu model or
explicit on the command line) would have otherwise been quietly
unavailable to a guest:
# qemu-system-x86_64 ... -cpu Nehalem,check
warning: host cpuid 0000_0001 lacks requested flag 'sse4.2|sse4_2' [0x00100000]
warning: host cpuid 0000_0001 lacks requested flag 'popcnt' [0x00800000]
A similar 'enforce' pseudo flag exists which in addition
to the above causes qemu to error exit if requested flags are
unavailable.
Configuration data for a cpu model resides in the target config
file which by default will be installed as:
/usr/local/etc/qemu/target-<arch>.conf
The format of this file should be self explanatory given the
definitions for the above six models and essentially mimics
the structure of the static x86_def_t x86_defs.
Encoding of cpuid flags names now allows aliases for both the
configuration file and the command line which reconciles some
Intel/AMD/Linux/Qemu naming differences.
This patch was tested relative to qemu.git.
Signed-off-by: john cooper <john.cooper@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Makefile already supported dvi, html and info formats,
but pdf was missing.
pdf is especially convenient for printing and for
documentation reviews. I hope it will help to
improve qemu's documentation.
Make now supports the new target 'pdf' which will
create qemu-doc.pdf and qemu-tech.pdf. It is also
possible to build both files individually.
texi2pdf and texi2dvi are rather noisy, so normally
some less important warnings are suppressed.
When make is called with V=1 (verbose mode),
warnings are not suppressed.
The patch also sorts the documentation targets
alphabetically and wraps a line which was too long.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Helper function just like qdict_get_int(), just for QFloat/double.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch improves Anthony patch a6a853c86275efd89996ce59612a000c5873db5d
Once there, it improves handling of object files for qemu tools
cc: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Fixes mingw32 build out of tree.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When make is called without a valid configuration,
it should tell the user what to do.
Revision 0e8c9214ba1d4128cf92442cd343bc3733478261
was a regression which resulted in a message
which was no longer user friendly
(reported by Aurelien Jarno).
This patch restores the old behaviour.
Cc: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Andreas Färber <afaerber@opensolaris.org>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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This adds a few more vpath suffixes and points the remaining two paths
explicitly to $(SRC_PATH) in order to eliminate the VPATH assignment
from config-host.mak.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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libuser.a was removed by 0e8c9214ba1d4128cf92442cd343bc3733478261.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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This makes rebuilds after source updates easier
for most users (who don't edit config-devices.mak).
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The vpath directive has two advantages over the VPATH variable:
1) it allows to skip searching of .o files; 2) the default semantics
are to append to the vpath, so there is no confusion between "VPATH=xyz"
and "VPATH+=xyz".
Since "vpath %.c %.h PATH" is not valid, I'm introducing a wrapper
macro to append one or more directories to the vpath.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Juan has contributed a cool Makefile infrastructure that enables us to drop
static libraries completely:
Move shared obj-y definitions to Makefile.objs, prefixed {common-,hw-,user-},
and link those object files directly into the executables.
Replace HWLIB by HWDIR, specifying only the directory.
Drop --whole-archive and ARLIBS in Makefiles and configure.
Drop GENERATED_HEADERS dependency in rules.mak, since this rebuilds all
common objects after generating a target-specific header; add dependency
rules to Makefile and Makefile.target instead.
v2:
- Don't try to include /config.mak for user emulators
- Changes to user object paths ("Quickfix for libuser.a drop") were obsoleted
by "user_only: compile everything with -fpie" (Kirill A. Shutemov)
v3:
- Fix dependency modelling for tools
- Remove comment on GENERATED_HEADERS obsoleted by this patch
Signed-off-by: Andreas Färber <afaerber@opensolaris.org>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Palle Lyckegaard <palle@lyckegaard.dk>
Cc: Ben Taylor <bentaylor.solx86@gmail.com>
Cc: Juan Quintela <quintela@trasno.org>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Make libuser.a depend on $(GENERATED_HEADERS) too so make -j won't start
building it before the headers exist. (There may be more bugs like this
but at least this makes (g)make -j4 started from scratch on a quadcore
now always complete here again.)
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Each block device information is stored in a QDict and the
returned QObject is a QList of all devices.
This commit should not change user output.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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A helper function to get a QList from a QDict.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is a helper function that does type checking before retrieving
a QBool from the dictionary.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Other subsystems will need to link against them.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Make using mingw32 on windows fails when running grep "=y$$".
The command is expanded to grep "=y$ and the missing "
results in an error.
I don't expect a file config-devices.mak with =y somewhere in
the middle of a line (they are always at the end of the line),
so simplifying the regular expression to =y seems to be permitted.
This avoids problems with wrong expansion.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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QError is a high-level data type which represents an exception
in QEMU, it stores the following error information:
- class Error class name (eg. "ServiceUnavailable")
- description A detailed error description, which can contain
references to run-time error data
- filename The file name of where the error occurred
- line number The exact line number of the error
- function The function name of where the error occurred
- run-time data Any run-time error data
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Thanks to f527c57935e22b56952d1ed1af36070b682ecf70
(fix parallel build), these prerequisites
are redundant now and can be removed.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Replace defconfing -> defconfig
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Implement MAXIM SD1338 RTC+NVRAM.
Signed-off-by: Paul Brook <paul@codesourcery.com>
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Add makefile dependencies for target specific device configs.
These will copy the default config if none exists, obsoleting the old
configure time code. If a config already exists but is older than the
default then print a warning.
Also remove config-devices.h. Code does not and should not care which
devices are being built.
Signed-off-by: Paul Brook <paul@codesourcery.com>
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We should install linuxboot.bin too, so let's add it to the to-be-installed
blobs.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This provides a QObject interface for creating QObjects from a JSON expression.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is the third and final stage of the JSON parser. It parses lexical tokens
performing grammar validation and creating the final QObject representation. It
uses a recursive decent parser.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The second stage of our JSON parser is a simple state machine that identifies
individual JSON values by counting the levels of nesting of tokens. It does
not perform grammar validation. We use this to emit a full JSON value to the
parser.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Our JSON parser is a three stage parser. The first stage tokenizes the stream
into a set of lexical tokens. Since the lexical grammar is regular, we can
use a finite state machine to model it. The state machine will emit tokens
as they are identified.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch introduces block migration called during live migration. Block
are being copied to the destination in an async way. First the code will
transfer the whole disk and then transfer all dirty blocks accumulted during
the migration.
Still need to improve transition from the iterative phase of migration to the
end phase. For now transition will take place when all blocks transfered once,
all the dirty blocks will be transfered during the end phase (guest is
suspended).
Changes from v4:
- Global variabels moved to a global state structure allocated dynamically.
- Minor coding style issues.
- Poll block.c for tracking of dirty blocks instead of manage it here.
Signed-off-by: Liran Schour <lirans@il.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch fixes clean in case of missing directories and
also adds code to distclean that removes the following files:
qemu-monitor.texi roms/seabios/config.mak roms/vgabios/config.mak
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Based on a ideas of Daniel Jacobowitz + Stefan Weil
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* Remove 2nd entry for pxe-pcnet.bin.
This kind of error can be avoided by sorting
entries. So all pxe-*.bin entries are now sorted
alphabetically.
* Rename pxe-eepro100.bin -> pxe-i82559er.bin.
This change completes another patch which did
the rename on the pxe image for i82559er.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Replace
GEN config-all-devices.mak
by
GEN config-all-devices.mak
Like this, the logging output is column aligned.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is needed also for qemu-io, but not for qemu-nbd.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Since config-host.h is generated by the Makefile (1215c6e76),
building (only) qemu-img fails:
[user@f12-uri qemu]$ make distclean (or git clone qemu)
[user@f12-uri qemu]$ ./configure ...
[user@f12-uri qemu]$ make qemu-img
GEN config-all-devices.mak
GEN qemu-img-cmds.h
CC qemu-img.o
In file included from qemu-img.c:24:
qemu-common.h:32:25: error: config-host.h: No such file or directory
Signed-off-by: Uri Lublin <uril@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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etherboot is deprecated and not under active development anymore.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Okay, this makes the tap options available on AIX even though there's
no support, but if we want to do it right we should have not compile
the tap code at all on AIX using e.g. CONFIG_TAP.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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