Add VSX, DFP and ISA 2.06 to the bits identified in the AT_HWCAP
entry of the AUXV.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Decimal Floating Point is emulated, so add it the mask. This will
fix the erroneous message:
Warning: Disabling some instructions which are not emulated by TCG (0x0, 0x4)
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Set the AT_ICACHEBSIZE and AT_DCACHEBSIZE entries of the AUXV to match the
CPU model's cache line sizes. This fixes memory clobbering problems on more
recent Book 3s implementations; memset(p, 0, N) will use the dcbz instruction
when N is sufficiently large and many of the newer server CPUs have cache lines
sizes of 128 bytes.
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
A gcc codegen bug in x86_64-w64-mingw32-gcc (GCC) 4.6.3 means that
non-debug builds of QEMU for Windows tend to assert when using
coroutines. Work around this by marking qemu_coroutine_switch
as noinline.
If we allow gcc to inline qemu_coroutine_switch into
coroutine_trampoline, then it hoists the code to get the
address of the TLS variable "current" out of the while() loop.
This is an invalid transformation because the SwitchToFiber()
call may be called when running thread A but return in thread B,
and so we might be in a different thread context each time
round the loop. This can happen quite often. Typically.
a coroutine is started when a VCPU thread does bdrv_aio_readv:
VCPU thread
main VCPU thread coroutine I/O coroutine
bdrv_aio_readv ----->
start I/O operation
thread_pool_submit_co
<------------ yields
back to emulation
Then I/O finishes and the thread-pool.c event notifier triggers in
the I/O thread. event_notifier_ready calls thread_pool_co_cb, and
the I/O coroutine now restarts *in another thread*:
iothread
main iothread coroutine I/O coroutine (formerly in VCPU thread)
event_notifier_ready
thread_pool_co_cb -----> current = I/O coroutine;
call AIO callback
But on Win32, because of the bug, the "current" being set here the
current coroutine of the VCPU thread, not the iothread.
noinline is a good-enough workaround, and quite unlikely to break in
the future.
(Thanks to Paolo Bonzini for assistance in diagnosing the problem
and providing the detailed example/ascii art quoted above.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1403535303-14939-1-git-send-email-peter.maydell@linaro.org
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
* Filter out MONITOR for KVM
* Fix filtering for TCG
* -cpu foo,check and -cpu foo,enforce support for TCG
* -cpu host migration support (-cpu host,migratable=no to disable)
* Add invtsc feature support
* New model: Broadwell
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Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-2.1' into staging
X86CPU
* Filter out MONITOR for KVM
* Fix filtering for TCG
* -cpu foo,check and -cpu foo,enforce support for TCG
* -cpu host migration support (-cpu host,migratable=no to disable)
* Add invtsc feature support
* New model: Broadwell
# gpg: Signature made Wed 25 Jun 2014 22:55:04 BST using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-cpu-for-2.1:
target-i386: Broadwell CPU model
target-i386: Fix indentation of CPU model definitions
target-i386: Support "invariant tsc" flag
target-i386: block migration and savevm if invariant tsc is exposed
savevm: check vmsd for migratability status
target-i386: Set migratable=yes by default on "host" CPU mooel
target-i386: Add "migratable" property to "host" CPU model
target-i386: Support check/enforce flags in TCG mode, too
target-i386: Loop-based feature word filtering in TCG mode
target-i386: Loop-based copying and setting/unsetting of feature words
target-i386: Define TCG_*_FEATURES earlier in cpu.c
target-i386: Filter KVM and 0xC0000001 features on TCG
target-i386: Filter FEAT_7_0_EBX TCG features too
target-i386: Make TCG feature filtering more readable
target-i386: Isolate KVM-specific code on CPU feature filtering logic
target-i386: Pass FeatureWord argument to report_unavailable_features()
target-i386: Merge feature filtering/checking functions
target-i386: Simplify reporting of unavailable features
target-i386: kvm: Don't enable MONITOR by default on any CPU model
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Otherwise, Windows fails with a deadlock.
Reported-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1403679897-11480-1-git-send-email-pbonzini@redhat.com
Tested-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-id: 1403683241-20678-1-git-send-email-imammedo@redhat.com
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This adds a new CPU model named "Broadwell". It has all the features
from Haswell, plus PREFETCHW, RDSEED, ADX, SMAP.
PREFETCHW was already supported as "3dnowprefetch".
RDSEED, ADX was added on Linux v3.15-rc1.
SMAP was added on Linux v3.15-rc2.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Wang, Yong Y <yong.y.wang@intel.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Dugger, Donald D <donald.d.dugger@intel.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Expose "Invariant TSC" flag, if KVM is enabled. From Intel documentation:
17.13.1 Invariant TSC The time stamp counter in newer processors may
support an enhancement, referred to as invariant TSC. Processor’s
support for invariant TSC is indicated by CPUID.80000007H:EDX[8].
The invariant TSC will run at a constant rate in all ACPI P-, C-.
and T-states. This is the architectural behavior moving forward. On
processors with invariant TSC support, the OS may use the TSC for wall
clock timer services (instead of ACPI or HPET timers). TSC reads are
much more efficient and do not incur the overhead associated with a ring
transition or access to a platform resource.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
[ehabkost: redo feature filtering to use .tcg_features]
[ehabkost: add CPUID_APM_INVTSC macro, add it to .unmigratable_flags]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Invariant TSC documentation mentions that "invariant TSC will run at a
constant rate in all ACPI P-, C-. and T-states".
This is not the case if migration to a host with different TSC frequency
is allowed, or if savevm is performed. So block migration/savevm.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
[AF+mtosatti: Updated error message]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Check vmsd for unmigratable field, allowing migratibility status
to be modified after vmstate_register.
Cc: Juan Quintela <quintela@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Having only migratable flags reported by default on the "host" CPU model
is safer for the following reasons:
* Existing users may expect "-cpu host" to be migration-safe, if they
take care of always using compatible host CPUs, host kernels, and
QEMU versions.
* Users who don't care aboug migration and want to enable all features
supported by the host kernel can simply change their setup to use
migratable=no.
Without this change, people using "-cpu host" will stop being able to
migrate, because now "invtsc" is getting enabled by default.
We are not setting migratable=yes by default on all X86CPU subclasses,
because users should be able to get non-migratable features enabled if
they ask for them explicitly.
Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This flag will allow the user to choose between two modes:
* All flags that can be enabled on the host, even if unmigratable
(migratable=no);
* All flags that can be enabled on the host, are known to QEMU
and migratable (migratable=yes).
The default is still migratable=false, to keep current behavior, but
this will be changed to migratable=true by another patch.
My plan was to support the "migratable" flag on all CPU classes, but
have the default to "false" on all CPU models except "host". However,
DeviceClass has no mechanism to allow a child class to have a different
property default from the parent class yet, so by now only the "host"
CPU model will support the "migratable" flag.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
If enforce/check is specified in TCG mode, QEMU will ensure all CPU
features are supported by TCG, so no CPU feature is silently disabled.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Be explicit about TCG vs. !KVM]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Instead of manually filtering each feature word, add a tcg_features
field to FeatureWordInfo, and use that field to filter all feature words
in TCG mode.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Now that we have the feature word arrays, we don't need to manually copy
each array item, we can simply iterate through each feature word.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Those macros will be used in the feature_word_info array data, so need
to be defined earlier.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
TCG doesn't support any of the feature flags on FEAT_KVM and
FEAT_C000_0001_EDX feature words, so clear all bits on those feature
words.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The TCG_7_0_EBX_FEATURES macro was defined but never used (it even had a
typo that was never noticed). Make the existing TCG feature filtering
code use it.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Andreas Färber <afaerber@suse.de>
Instead of an #ifdef in the middle of the code, just set
TCG_EXT2_FEATURES to a different value depending on TARGET_X86_64.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This will allow us to re-use the feature filtering logic (and the
check/enforce flag logic) for TCG.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This will help us simplify the code that calls
report_unavailable_features() later.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Merge filter_features_for_kvm() and kvm_check_features_against_host().
Both functions made exactly the same calculations, the only difference
was that filter_features_for_kvm() changed the bits on cpu->features[],
and kvm_check_features_against_host() did error reporting.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Instead of checking and calling unavailable_host_feature() once for each
bit, simply call the function (now renamed to
report_unavailable_features()) once for each feature word.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Drop unused return value]
Signed-off-by: Andreas Färber <afaerber@suse.de>
KVM never supported the MONITOR flag so it doesn't make sense to have it
enabled by default when KVM is enabled.
The rationale here is similar to the cases where it makes sense to have
a feature enabled by default on all CPU models when on KVM mode (e.g.
x2apic). In this case we are having a feature disabled by default for
the same reasons.
In this case we don't need machine-type compat code because it is
currently impossible to run a KVM VM with the MONITOR flag set.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
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Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-2014-06-24' into staging
trivial patches for 2014-06-24
# gpg: Signature made Tue 24 Jun 2014 17:07:31 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg: aka "Michael Tokarev <mjt@corpit.ru>"
# gpg: aka "Michael Tokarev <mjt@debian.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D 4324 457C E0A0 8044 65C5
# Subkey fingerprint: 6F67 E18E 7C91 C5B1 5514 66A7 BEE5 9D74 A4C3 D7DB
* remotes/mjt/tags/trivial-patches-2014-06-24:
Add support for the arm breakpoint syscall
Increase maximum number of session of the internal TFTP server.
target-s390x: Remove unused ld_code6() function
hw/moxie/moxiesim.c: Remove unused moxie_intc_create()
target-unicore: Remove unused functions
build-sys: introduce install-prog macro to install&strip binaries and use it
tcg: mark tcg_out* and tcg_patch* with attribute 'unused'
rng-random: NULL check not needed before g_free()
block.c: Remove useless 'buf' variable
vscclient: Add required headers to fix build on FreeBSD
target-ppc: Fix compiler warning
configure: Enable TPM by default, add --disable-tpm
Fix new typos (found by codespell)
virtio-serial: remove useless set_config function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
OABI arm used a software interrupt(0xef9f0001) for breakpoints.
Since 2005 gdb has used the break instruction(0xe7f001f0) for EABI.
Apparently Steel Bank Common Lisp still uses the swi instruction.
This is the kernel implementation:
http://lxr.free-electrons.com/source/arch/arm/kernel/traps.c#L598
Signed-off-by: Hunter Laux <hunterlaux@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Grub fails to boot from internal TFTP server when loading more than
3 initrd files.
Grub first opens a session to the TFTP server for every initrd file and
retrieves only the file size for all.
Then it wants to download the content using the old sessions which are
already expired.
Increasing the maximum number of session of the internal TFTP
server avoids this issue.
The error message reads as following:
error: timeout reading
`/boot/ISO.ROOT/BOOTMGR'.
Press any key to continue...
Signed-off-by: Bernhard Übelacker <bernhardu@vr-web.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The ld_code6() function is unused; remove it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The function moxie_intc_create() is unused; remove it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The functions gen_st64, gen_ld64, gen_mulxy, ucf64_itod and
ucf64_dtoi are all unused; remove them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Use common rule (macro) to install and strip binaries, and use
it in all places where we install binaries, instead of fixing
bugs like 1319493 in every place.
(This fixes https://bugs.launchpad.net/bugs/1319493)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The tcg_out* and tcg_patch* functions are utility routines that may or
may not be used by a particular backend; mark them with the 'unused'
attribute to suppress spurious warnings if they aren't used.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
g_free() is NULL-safe.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
'buf' is not used actually, so remove it and related snprintf() statement.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
gcc reports a warning which is usually wrong:
target-ppc/dfp_helper.c: In function ‘dfp_get_digit’:
target-ppc/dfp_helper.c:417:1: warning:
control reaches end of non-void function [-Wreturn-type]
The compiler shows the warning if assert is not marked with the noreturn
attribute or if the code is compiled with -DNDEBUG.
Using g_assert_not_reached better documents the intention and does not
have these problems.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
I don't see why tpm is disabled by default: it doesn't have any
external dependencies, or change default behavior. Leaving it disabled
is just going to cause it to bit rot.
Enable it by default, and add a --disable-tpm option.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Its only contents are a dead memcpy. Since it is optional,
drop the function altogether.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Don's patches to limit below-4g ram for pc
Marcel's pcie hotplug rewrite
Gabriel's changes to e1000 auto-negotiation
qemu char bugfixes by Stefan
misc bugfixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,vhost,net fixes, enhancements
Don's patches to limit below-4g ram for pc
Marcel's pcie hotplug rewrite
Gabriel's changes to e1000 auto-negotiation
qemu char bugfixes by Stefan
misc bugfixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 23 Jun 2014 16:25:19 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (23 commits)
xen-hvm: Handle machine opt max-ram-below-4g
pc & q35: Add new machine opt max-ram-below-4g
xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
pcie: coding style tweak
hw/pcie: better hotplug/hotunplug support
hw/pcie: implement power controller functionality
hw/pcie: correct debug message
q35: Use PC_Q35_COMPAT_1_4 on pc-q35-1.4 compat_props
virtio-pci: Report an error when msix vectors init fails
qemu-char: avoid leaking unused fds in tcp_get_msgfds()
qemu-char: fix qemu_chr_fe_get_msgfd()
qapi/string-output-visitor: fix human output
e1000: factor out checking for auto-negotiation availability
e1000: move e1000_autoneg_timer() to after set_ics()
e1000: signal guest on successful link auto-negotiation
e1000: improve auto-negotiation reporting via mii-tool
e1000: emulate auto-negotiation during external link status change
qtest: fix vhost-user-test unbalanced mutex locks
qtest: fix qtest for vhost-user
libqemustub: add more stubs for qemu-char
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/rth/tcg-ppc-merge-1: (25 commits)
tcg-ppc: Use the return address as a base pointer
tcg-ppc: Merge cache-utils into the backend
qemu/osdep: Remove the need for qemu_init_auxval
tcg-ppc: Rename the tcg/ppc64 backend
tcg-ppc: Remove the backend
tcg-ppc64: Merge ppc32 shifts
tcg-ppc64: Support mulsh_i32
tcg-ppc64: Merge ppc32 register usage
tcg-ppc64: Merge ppc32 qemu_ld/st
tcg-ppc64: Merge ppc32 brcond2, setcond2, muluh
tcg-ppc64: Begin merging ppc32 with ppc64
tcg-ppc64: Fix sub2 implementation
tcg-ppc64: Merge 32-bit ABIs into the prologue / frame code
tcg-ppc64: Adjust tcg_out_call for ELFv2
tcg-ppc64: Support the ppc64 elfv2 ABI
tcg-ppc64: Use the correct test in tcg_out_call
tcg-ppc64: Better parameterize the stack frame
tcg-ppc64: Fix TCG_TARGET_CALL_STACK_OFFSET
tcg-ppc64: Move call macros out of tcg-target.h
tcg-ppc64: Make TCG_AREG0 and TCG_REG_CALL_STACK enum constants
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit refactor the simple tests to test all integer types. We
move to hex because it is easier to read values of different types.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
If there is an error while loading a field, we should stop reading and
not continue with the rest of fields. And we should also set an error
in qemu_file.
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This shows how the script deals with substructures added to vmstate
descriptions that don't change the on-wire format.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
