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4558 commits

Author SHA1 Message Date
Max Reitz 275b2ac328
qapi: Replace qobject_to_X(o) by qobject_to(X, o)
This patch was generated using the following Coccinelle script:

@@
expression Obj;
@@
(
- qobject_to_qnum(Obj)
+ qobject_to(QNum, Obj)
|
- qobject_to_qstring(Obj)
+ qobject_to(QString, Obj)
|
- qobject_to_qdict(Obj)
+ qobject_to(QDict, Obj)
|
- qobject_to_qlist(Obj)
+ qobject_to(QList, Obj)
|
- qobject_to_qbool(Obj)
+ qobject_to(QBool, Obj)
)

and a bit of manual fix-up for overly long lines and three places in
tests/check-qjson.c that Coccinelle did not find.

Backports commit 7dc847ebba953db90853d15f140c20eef74d4fb2 from qemu
2018-03-20 10:55:57 -04:00
Max Reitz dbdba16732
qapi: Add qobject_to()
This is a dynamic casting macro that, given a QObject type, returns an
object as that type or NULL if the object is of a different type (or
NULL itself).

The macro uses lower-case letters because:
1. There does not seem to be a hard rule on whether qemu macros have to
be upper-cased,
2. The current situation in qapi/qmp is inconsistent (compare e.g.
QINCREF() vs. qdict_put()),
3. qobject_to() will evaluate its @obj parameter only once, thus it is
generally not important to the caller whether it is a macro or not,
4. I prefer it aesthetically.

The macro parameter order is chosen with typename first for
consistency with other QAPI macros like QAPI_CLONE(), as well as
for legibility (read it as "qobject to" type "applied to" obj).

Backports commit 1a56b1e2ab5e9d6d89386ca953b4afb419e15abe from qemu
2018-03-20 10:45:59 -04:00
Max Reitz 6acf9baa68
compiler: Add QEMU_BUILD_BUG_MSG() macro
_Static_assert() allows us to specify messages, and that may come in
handy. Even without _Static_assert(), encouraging developers to put a
helpful message next to the QEMU_BUILD_BUG_* may make debugging easier
whenever it breaks.

Backports commit 9139b5672360aaa263da1d96cdfdbe16accb6e3b from qemu
2018-03-20 10:43:37 -04:00
Andreas Grapentin 4f6ba5a2dc
use _Static_assert in QEMU_BUILD_BUG_ON
QEMU_BUILD_BUG_ON should use C11's _Static_assert, if the compiler supports it,
to provide more readable messages on failure.

We check for _Static_assert in configure, and set CONFIG_STATIC_ASSERT
accordingly. QEMU_BUILD_BUG_ON invokes _Static_assert if CONFIG_STATIC_ASSERT
is defined, and reverts to the old way otherwise.

That way, systems without C11 conforming compiler will still have the old
messages, as verified by intentionally breaking the configure check.

the following example output was generated by inverting the condition in
QEMU_BUILD_BUG_ON:

without _Static_assert:

> In file included from /qemu/include/qemu/osdep.h:36:0,
> from /qemu/qga/commands.c:13:
> /qemu/qga/commands.c: In function ‘qmp_guest_exec_status’:
> /qemu/include/qemu/compiler.h:89:12: error: negative width in bit-field ‘<anonymous>’
> struct { \
> ^
> /qemu/include/qemu/compiler.h:96:38: note: in expansion of macro QEMU_BUILD_BUG_ON_STRUCT’
> #define QEMU_BUILD_BUG_ON(x) typedef QEMU_BUILD_BUG_ON_STRUCT(x) \
> ^~~~~~~~~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:146:5: note: in expansion of macro ‘QEMU_BUILD_BUG_ON’
> QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
> ^~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:417:5: note: in expansion of macro ‘atomic_load_acquire’
> atomic_load_acquire(ptr)
> ^~~~~~~~~~~~~~~~~~~
> /qemu/qga/commands.c:160:21: note: in expansion of macro ‘atomic_mb_read’
> bool finished = atomic_mb_read(&gei->finished);
> ^~~~~~~~~~~~~~

with _Static_assert:

> In file included from /qemu/include/qemu/osdep.h:36:0,
> from /qemu/qga/commands.c:13:
> /qemu/qga/commands.c: In function ‘qmp_guest_exec_status’:
> /qemu/include/qemu/compiler.h:94:30: error: static assertion failed: "not expecting: sizeof(*&gei->finished) > sizeof(void *)"
> #define QEMU_BUILD_BUG_ON(x) _Static_assert((x), #x)
> ^
> /qemu/include/qemu/atomic.h:146:5: note: in expansion of macro ‘QEMU_BUILD_BUG_ON’
> QEMU_BUILD_BUG_ON(sizeof(*ptr) > sizeof(void *)); \
> ^~~~~~~~~~~~~~~~~
> /qemu/include/qemu/atomic.h:417:5: note: in expansion of macro ‘atomic_load_acquire’
> atomic_load_acquire(ptr)
> ^~~~~~~~~~~~~~~~~~~
> /qemu/qga/commands.c:160:21: note: in expansion of macro ‘atomic_mb_read’
> bool finished = atomic_mb_read(&gei->finished);
> ^~~~~~~~~~~~~~

Backports commit 49e00a18708e27c815828d9440d5c9300d19547c from qemu
2018-03-20 10:42:20 -04:00
Marc-André Lureau 910d50be6b
qlit: add qobject_from_qlit()
Instantiate a QObject* from a literal QLitObject.

LitObject only supports int64_t for now. uint64_t and double aren't
implemented.

Backports commit 3cf42b8b3af1bd61e736a9ca0f94806c7931ae56 from qemu
2018-03-20 10:30:41 -04:00
Marc-André Lureau 6b2143ad64
qlit: use QType instead of int
Backports commit 3d96ea44d4dde442094b7d9e5b71ef61b4c4ae39 from qemu
2018-03-20 10:28:12 -04:00
Igor Mammedov c6dd0d3bef
m68k: cleanup cpu type name composition
use new M68K_CPU_TYPE_NAME to compose CPU type names
and get rid of intermediate M68kCPUInfo/register_cpu_type()
which is replaced by static TypeInfo array.

Backports commit f61797bd947cff86b12036917b35ebc38628e4df from qemu
2018-03-20 08:40:05 -04:00
Igor Mammedov 9e175711d6
sparc: cleanup cpu type name composition
introduce SPARC_CPU_TYPE_NAME macro and use it to
construct cpu type names.

Backports commit 1d4bfc5496387124e56df6fd49481e1821403456 from qemu
2018-03-20 08:26:21 -04:00
Eduardo Habkost 074865ff98
cpu: Generify CPU init functions
Backports commits 2994fd96d986578a342f2342501b4ad30f6d0a85,
701e3c78ce45fa630ffc6826c4b9a4218954bc7f, and
d1853231c60d16af78cf4d1608d043614bfbac0b from qemuu
2018-03-20 08:21:51 -04:00
Peter Crosthwaite ce1831bfb4
target-*: Don't redefine cpu_exec()
This function needs to be converted to QOM hook and virtualised for
multi-arch. This rename interferes, as cpu-qom will not have access
to the renaming causing name divergence. This rename doesn't really do
anything anyway so just delete it.

Backports commit 8642c1b81e0418df066a7960a7426d85a923a253 from qemu
2018-03-20 07:02:47 -04:00
Igor Mammedov 15eb359656
numa: move numa_node from CPUState into target specific classes
Move vcpu's associated numa_node field out of generic CPUState
into inherited classes that actually care about cpu<->numa mapping,
i.e: ARMCPU, PowerPCCPU, X86CPU.

Backports relevant parts of commit 15f8b14228b856850df3fa5ba999ad96521f2208 from qemu
2018-03-20 06:46:20 -04:00
Lioncash 6bdfeb35ec
tcg/i386: Perform comparison pass against qemu
Ensures formatting and code are consistent.
2018-03-20 06:29:06 -04:00
Richard Henderson 0dcb2d20ed
tcg: Add choose_vector_size
This unifies 5 copies of checks for supported vector size,
and in the process fixes a missing check in tcg_gen_gvec_2s.

This lead to an assertion failure for 64-bit vector multiply,
which is not available in the AVX instruction set.

Bakports commit adb196cbd5cff26547bc32a208074f03f4c4a627 from qemu
2018-03-17 20:22:31 -04:00
Richard Henderson 2310bd4887
tcg/i386: Support INDEX_op_dup2_vec for -m32
Unknown why -m32 was passing with gcc but not clang; it should have
failed for both. This would be used for tcg_gen_dup_i64_vec, and
visible with the right TB and an aarch64 guest.

Backports commit 7f34ed4bcdfda55f978f51aadca64aa970c9f4b6 from qemu
2018-03-17 20:22:24 -04:00
Richard Henderson e9eee21efd
tcg: Improve tcg_gen_muli_i32/i64
Convert multiplication by power of two to left shift.

Backports commit b2e3ae9452fa55eb036739ec39c33f0782a97504 from qemu
2018-03-17 20:22:10 -04:00
Pavel Dovgalyuk 36d902cd0e
cpu-exec: fix exception_index handling
Function cpu_handle_interrupt calls cc->cpu_exec_interrupt to process
pending hardware interrupts. Under the hood cpu_exec_interrupt uses
cpu->exception_index to pass information to the internal function which
is usually common for exception and interrupt processing.
But this value is not reset after return and may be processed again
by cpu_handle_exception. This does not happen due to overwriting
the exception_index at the end of cpu_handle_interrupt.
But this branch may also overwrite the valid exception_index in some cases.
Therefore this patch:
1. resets exception_index just after the call to cpu_exec_interrupt
2. prevents overwriting the meaningful value of exception_index

Backports commit 5f3bdfd4fa33255542a4b6249913d9ffb11b44f9 from qemu
2018-03-17 19:33:05 -04:00
Paolo Bonzini 7b52aa7987
membarrier: add --enable-membarrier
Actually enable the global memory barriers if supported by the OS.
Because only recent versions of Linux include the support, they
are disabled by default. Note that it also has to be disabled
for QEMU to run under Wine.

Before this patch, rcutorture reports 85 ns/read for my machine,
after the patch it reports 12.5 ns/read. On the other hand updates
go from 50 *micro*seconds to 20 *milli*seconds.

Backports commit a40161cbe9ccbcbab798c3e4d257c4bba99d153a from qemu
2018-03-17 19:30:43 -04:00
Paolo Bonzini 67cb6d16ff
membarrier: introduce qemu/sys_membarrier.h
This new header file provides heavy-weight "global" memory barriers that
enforce memory ordering on each running thread belonging to the current
process. For now, use a dummy implementation that issues memory barriers
on both sides (matching what QEMU has been doing so far).

Backports commit c8d3877e48c4f57381d72eaf8d016bff12ce2d7c from qemu
2018-03-17 19:19:28 -04:00
Paolo Bonzini 37117a74ed
qom: introduce object_class_get_list_sorted
Unify half a dozen copies of very similar code (the only difference being
whether comparisons were case-sensitive) and use it also in Tricore,
which did not do any sorting of CPU model names.

Backports commit 47c66009ab793241e8210b3018c77a9ce9506aa8 from qemu
2018-03-17 19:16:25 -04:00
Daniel P. Berrange 8b20dfcba5
cutils: add qemu_strtoi & qemu_strtoui parsers for int/unsigned int types
There are qemu_strtoNN functions for various sized integers. This adds two
more for plain int & unsigned int types, with suitable range checking.

Backports commit 473a2a331ee382703f7ca0067ba2545350cfa06c from qemu
2018-03-17 19:13:34 -04:00
Chao Peng a64b7f0d3f
i386: Add support to get/set/migrate Intel Processor Trace feature
Add Intel Processor Trace related definition. It also add
corresponding part to kvm_get/set_msr and vmstate.

Backports commit b77146e9a129bcdb60edc23639211679ae846a92 from qemu
2018-03-17 19:11:21 -04:00
Chao Peng da2d5108ee
i386: Add Intel Processor Trace feature support
Expose Intel Processor Trace feature to guest.

To make Intel PT live migration safe and get same CPUID information
with same CPU model on diffrent host. CPUID[14] is constant in this
patch. Intel PT use EPT is first supported in IceLake, the CPUID[14]
get on this machine as default value. Intel PT would be disabled
if any machine don't support this minial feature list.

Backports commit e37a5c7fa459558b5020588994707fe3fdd6616e from qemu
2018-03-17 19:10:30 -04:00
Wanpeng Li f0701e6dd5
target-i386: add KVM_HINTS_DEDICATED performance hint
Add KVM_HINTS_DEDICATED performance hint, guest checks this feature bit
to determine if they run on dedicated vCPUs, allowing optimizations such
as usage of qspinlocks.

Backports commit be7773268d98176489483a315d3e2323cb0615b9 from qemu
2018-03-17 19:07:19 -04:00
Liran Alon 9fbdd8d885
KVM: x86: Add support for save/load MSR_SMI_COUNT
This MSR returns the number of #SMIs that occurred on
CPU since boot.

KVM commit 52797bf9a875 ("KVM: x86: Add emulation of MSR_SMI_COUNT")
introduced support for emulating this MSR.

This commit adds support for QEMU to save/load this
MSR for migration purposes.

Backports relevant parts of commit e13713db5b609d9a83c9cfc8ba389d4215d4ba29 from qemu
2018-03-17 19:02:31 -04:00
Brijesh Singh 624391bdc8
cpu/i386: populate CPUID 0x8000_001F when SEV is active
When SEV is enabled, CPUID 0x8000_001F should provide additional
information regarding the feature (such as which page table bit is used
to mark the pages as encrypted etc).

The details for memory encryption CPUID is available in AMD APM
(https://support.amd.com/TechDocs/24594.pdf) Section E.4.17

Backports relevant parts of commit 6cb8f2a663a47c6e0da17fc4fb9e06abfda2bd48 from qemu
2018-03-17 19:00:59 -04:00
Laurent Vivier 5ec082d17c
target/m68k: implement fcosh
Using a local m68k floatx80_cosh()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 02f9124ebe26c36f0f7ed58085bd963e4372b2cd from qemu
2018-03-17 18:58:57 -04:00
Laurent Vivier 7569530893
target/m68k: implement fsinh
Using a local m68k floatx80_sinh()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit eee6b892a6063c2807ecf33a2f62a8d7cca7652c from qemu
2018-03-17 18:57:16 -04:00
Laurent Vivier a2a662a901
target/m68k: implement ftanh
Using local m68k floatx80_tanh() and floatx80_etoxm1()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 9937b02965c2a7dbc4b21d98e29b082bab095aa5 from qemu
2018-03-17 18:55:33 -04:00
Laurent Vivier e031b14e4a
target/m68k: implement fatanh
Using a local m68k floatx80_atanh()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit e3655afa137b2e0999537eef273a2845ba21d68c from qemu
2018-03-17 18:54:24 -04:00
Laurent Vivier c900ad13f9
target/m68k: implement facos
Using a local m68k floatx80_acos()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit c84813b807fc82c68ff6d72387f95b15ad283bf6 from qemu
2018-03-17 18:52:27 -04:00
Laurent Vivier 542a863020
target/m68k: implement fasin
Using a local m68k floatx80_asin()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit bc20b34e03b51725d7f008551b5f56f1da07ab6a from qemu
2018-03-17 18:50:30 -04:00
Laurent Vivier 80a2ebf67b
target/m68k: implement fatan
Using a local m68k floatx80_atan()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 8c992abc892c90caf1d4dd5b4482cda052a280ba from qemu
2018-03-17 18:48:32 -04:00
Laurent Vivier 5630647279
target/m68k: implement fsincos
using floatx80_sin() and floatx80_cos()

Backports commit 47446c9ce34b6685ffe20e829ff6c9aaefd3af0a from qemu
2018-03-17 18:41:30 -04:00
Laurent Vivier 4177dd3ce8
target/m68k: implement fcos
Using a local m68k floatx80_cos()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 68d0ed37866de2c5cafc4e2589e263961b2e8cd6 from qemu
2018-03-17 18:39:05 -04:00
Laurent Vivier acc9bd1d21
target/m68k: implement fsin
Using a local m68k floatx80_sin()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 5add1ac42faffd3d3639101fa778dced693a65a3 from qemu
2018-03-17 18:37:01 -04:00
Laurent Vivier caf3cb0571
target/m68k: implement ftan
Using a local m68k floatx80_tan()
[copied from previous:
Written by Andreas Grabher for Previous, NeXT Computer Emulator.]

Backports commit 273401809c8a8330e5430f2c958467efa7079b2c from qemu
2018-03-17 18:35:01 -04:00
Lioncash 103af93402
translate-all: Prevent null-pointer dereference possibility in tb_clean_internal() 2018-03-17 18:31:39 -04:00
Lioncash 1fe99928c8
target/m68k: Correct M68K_CPU macro parameters in m68k_cpu_handle_mmu_fault in helper.c 2018-03-17 18:31:06 -04:00
Lioncash c169f3dc5d
target/i386: Correct X86_CPU macro parameters in x86_cpu_handle_mmu_fault() in helper.c 2018-03-17 18:30:46 -04:00
Lioncash acb7231650
target/m68k: Correct duplicate conditions in gen_cc_cond 2018-03-17 18:30:33 -04:00
Richard Henderson 31e93018f3
tcg: Allow 6 arguments to TCG helpers
We already handle this in the backends, and the lifetime datum
for the TCGOp is already large enough.

Backports commit 1df3caa946e08b387511dfba3a37d78910e51796 from qemu
2018-03-17 18:29:04 -04:00
Philippe Mathieu-Daudé 4eeb4f7faf
accel/tcg: move atomic_template.h to accel/tcg/ 2018-03-13 12:28:50 -04:00
Thomas Huth 975924bb2e
accel/tcg: move softmmu_template.h to accel/tcg/
The header is only used by accel/tcg/cputlb.c so we can
move it to the accel/tcg/ folder, too.

Backports commit da1849c1eba50aa372f87c7945d7b230eb2b2fb2 from qemu
2018-03-13 12:27:04 -04:00
Lioncash 035f1afa7d
tcg: move tcg backend files into accel/tcg/
move tcg-runtime.c, translate-all.(ch) and translate-common.c into
accel/tcg/ subdirectory and updated related trace-events file.

Backports commit 244f144134d0dd182f1af8654e7f9a79fe770368 and applies
relevant changes made in db432672dc50ed86dda17ac821b7eb07411a90af and
d9bb58e51068dfc48746c6af0179926c8dc05bce from qemu
2018-03-13 11:48:15 -04:00
Lioncash 99dbbf1571
tcg/optimize: Perform comparison pass with qemu
Keeps formatting and code synced
2018-03-12 18:06:29 -04:00
Lioncash 21b0afe218
tcg: Perform comparison pass with qemu
Makes formatting and code consistent with qemu
2018-03-12 18:03:06 -04:00
Lioncash 95d50a02a1
target/mips/translate: Perform comparison pass with qemu
Keeps code and formatting in sync
2018-03-12 17:52:56 -04:00
Lioncash 7db1bff993
target/mips/op_helper: Perform comparison pass with qemu
Keeps code and formatting in sync
2018-03-12 15:25:08 -04:00
Lioncash 48429b2bcb
target/mips/msa_helper: Perform comparison pass with qemu
Keeps code and formatting in sync
2018-03-12 15:15:42 -04:00
Lioncash 4e8a1f8d6b
target/mips/internal: Perform comparison pass with qemu
Keeps code and formatting in sync with qemu
2018-03-12 15:13:17 -04:00