Commit graph

179 commits

Author SHA1 Message Date
Richard Henderson a5ac288135
tcg: Remove gen_intermediate_code_pc
It is no longer used, so tidy up everything reached by it.
This includes the gen_opc_* arrays, the search_pc parameter
and the inline gen_intermediate_code_internal functions.

Backports commit 4e5e1215156662b2b153255c49d4640d82c5568b from qemu
2018-02-17 15:23:59 -05:00
Richard Henderson 66de6cc37c
tcg: Save insn data and use it in cpu_restore_state_from_tb
We can now restore state without retranslation.

Backports commit fca8a500d519a56abeaedf8073167a61d3c6b9c4 from qemu
2018-02-17 15:23:59 -05:00
Paolo Bonzini cab4c979f0
cpu-exec: add a new CF_USE_ICOUNT cflag
Backports commit 0266359e57987d6be53fbcb885f2dd39c1dae940 from qemu
2018-02-17 15:23:58 -05:00
Pavel Dovgalyuk ac46898b3c
cpu-exec: invalidate nocache translation if they are interrupted
In this case, QEMU might longjmp out of cpu-exec.c and miss the final
cleanup in cpu_exec_nocache.  Do this manually through a new compile
flag.

Backports commit d8a499f17ee5f05407874f29f69f0e3e3198a853 from qemu
2018-02-17 15:23:58 -05:00
Richard Henderson 1cbd175736
tcg: Pass data argument to restore_state_to_opc
The gen_opc_* arrays are already redundant with the data stored in
the insn_start arguments. Transition restore_state_to_opc to use
data from the latter.

Backports commit bad729e272387de7dbfa3ec4319036552fc6c107 from qemu
2018-02-17 15:23:58 -05:00
Lioncash f8d54a8f3c
Drop unused crypto source files 2018-02-17 15:23:57 -05:00
Lioncash da8e73b887
qom/cpu: Add throttle_thread_scheduled member
Extracts the member out of commit 2adcc85d407c1ab985f5abed808c78dbb84f4773
2018-02-17 15:23:55 -05:00
Pavel Butsykin 96f8d6325a
apic_internal.h: fix formatting and drop unused consts
Fix formatting of local apic definitions and drop unused constant
APIC_INPUT_POLARITY, APIC_SEND_PENDING. Magic numbers in shifts are
replaced with constants defined just above.

Backports commit b6cfc3c2ac5a1025d8fe7d74421a73ec495408f9 from qemu
2018-02-17 15:23:54 -05:00
Pavel Butsykin 79559c82aa
apic_internal.h: rename ESR_ILLEGAL_ADDRESS to APIC_ESR_ILLEGAL_ADDRESS
Added prefix APIC_ for determining the constant of a particular subsystem,
improve the overall readability and match other constant names.

Backports commit a22bf99c5852f369dc620be2c3c93535a5b69a58 from qemu
2018-02-17 15:23:54 -05:00
Pavel Butsykin fcd3e3e449
apic_internal.h: added more constants
These constants are needed for optimal access to
bit fields local apic registers without magic numbers.

Backports commit 6519d187e301c5a14a8c9b32fb93027b04a4336d from qemu
2018-02-17 15:23:54 -05:00
Peter Crosthwaite afb48e9fc5
cputlb: Change tlb_set_dirty() arg to cpu
Change tlb_set_dirty() to accept a CPU instead of an env pointer. This
allows for removal of another CPUArchState usage from prototypes that
need to be QOMified.

Backports commit bcae01e468d961ad9afaf4148329147e4be209ab from qemu
2018-02-17 15:23:52 -05:00
Lioncash 5e2862b29d
cpu: Add crash_occurred flag into CPUState
CPUState::crash_occurred field inside CPUState marks
that guest crash occurred. This value is added into
cpu common migration subsection.

Backports commit bac05aa9a77af1ca7972c8dc07560f4daa7c2dfc from qemu
2018-02-17 15:23:51 -05:00
Paolo Bonzini 195a86283f
exec: make mmap_lock/mmap_unlock globally available
There is some iffy lock hierarchy going on in translate-all.c. To
fix it, we need to take the mmap_lock in cpu-exec.c. Make the
functions globally available.

Backports commit 8fd19e6cfd5b6cdf028c6ac2ff4157ed831ea3a6 from qemu
2018-02-17 15:23:49 -05:00
Pavel Dovgalyuk 4a05c9ee28
cpu-exec: introduce loop exit with restore function
This patch introduces loop exit function, which also
restores guest CPU state according to the value of host
program counter.

Backports commit 1c3c8af1fb40a481c07749e0448644d9b7700415 from qemu
2018-02-17 15:23:38 -05:00
Pavel Dovgalyuk 28f154129b
softmmu: remove now unused functions
Now that the cpu_ld/st_* function directly call helper_ret_ld/st, we can
drop the old helper_ld/st functions.

Backports commit b8611499b940b1b4db67aa985e3a844437bcbf00 from qemu
2018-02-17 15:23:38 -05:00
Pavel Dovgalyuk 6cdaaf9b1b
softmmu: add helper function to pass through retaddr
This patch introduces several helpers to pass return address
which points to the TB. Correct return address allows correct
restoring of the guest PC and icount. These functions should be used when
helpers embedded into TB invoke memory operations.

Backports commit 282dffc8a4bfe8724548cabb8a26698bde0a6e18 from qemu
2018-02-17 15:23:38 -05:00
Benjamin Herrenschmidt 1722be3e73
tlb: Add ifetch argument to cpu_mmu_index()
This is set to true when the index is for an instruction fetch
translation.

The core get_page_addr_code() sets it, as do the SOFTMMU_CODE_ACCESS
acessors.

All targets ignore it for now, and all other callers pass "false".

This will allow targets who wish to split the mmu index between
instruction and data accesses to do so. A subsequent patch will
do just that for PowerPC.

Backports commit 97ed5ccdee95f0b98bedc601ff979e368583472c from qemu
2018-02-17 15:23:37 -05:00
Markus Armbruster 97ad660361
error: On abort, report where the error was created
This is particularly useful when we abort in error_propagate(),
because there the stack backtrace doesn't lead to where the error was
created. Looks like this:

Unexpected error in parse_block_error_action() at .../qemu/blockdev.c:322:
qemu-system-x86_64: -drive if=none,werror=foo: 'foo' invalid write error action
Aborted (core dumped)

Note: to get this example output, I monkey-patched drive_new() to pass
&error_abort to blockdev_init().

To keep the error handling boiler plate from growing even more, all
error_setFOO() become macros expanding into error_setFOO_internal()
with additional __FILE__, __LINE__, __func__ arguments. Not exactly
pretty, but it works.

The macro trickery breaks down when you take the address of an
error_setFOO(). Fortunately, we do that in just one place: qemu-ga's
Windows VSS provider and requester DLL wants to call
error_setg_win32() through a function pointer "to avoid linking glib
to the DLL". Use error_setg_win32_internal() there. The use of the
function pointer is already wrapped in a macro, so the churn isn't
bad.

Code size increases by some 35KiB for me (0.7%). Tolerable. Could be
less if we passed relative rather than absolute source file names to
the compiler, or forwent reporting __func__.

Backports commit 1e9b65bb1bad51735cab6c861c29b592dccabf0e from qemu
2018-02-17 15:23:37 -05:00
Markus Armbruster 46f398569f
error: Revamp interface documentation
Backports commit edf6f3b3358597d37da0cf636ce3ed8a546d0f26 from qemu
2018-02-17 15:23:37 -05:00
Markus Armbruster eebc32fd75
error: error_set_errno() is unused, drop
Backports commit 4463dcb85c9f992f0c4d93f2142c8d64dcc85c5c from qemu
2018-02-17 15:23:37 -05:00
Markus Armbruster 661e38e3ed
error: Make error_setg() a function
Saves a tiny amount of code at every call site.

Backports commit a9499ddd82a99c66cc72a08e72427c423acfea1c from qemu
2018-02-17 15:23:36 -05:00
Peter Crosthwaite a249923d4d
qom: Add recursive version of object_child_for_each
Useful for iterating through an entire QOM subtree.

Backports commit d714b8de7747f20fe42e5716d1d44f91e2b891f4 from qemu
2018-02-17 15:23:35 -05:00
Peter Maydell e08c524068
Remove unused qemu_fls function
Nothing uses qemu_fls() any more, so delete it.

Backports commit 10944a19209bb520054569e0f156f50338901264 from qemu
2018-02-17 15:23:35 -05:00
Lioncash 9ce672c511
host-util: Add power calculation functions 2018-02-17 15:23:35 -05:00
Lioncash f81894dddb
exec: Add semihosting stubs 2018-02-17 15:23:33 -05:00
Peter Maydell 6e94bda144
cputlb: Add functions for flushing TLB for a single MMU index
Guest CPU TLB maintenance operations may be sufficiently
specialized to only need to flush TLB entries corresponding
to a particular MMU index. Implement cputlb functions for
this, to avoid the inefficiency of flushing TLB entries
which we don't need to.

Backports commit d7a74a9d4a68e27b3a8ceda17bb95cb0a23d8e4d from qemu
2018-02-17 15:23:31 -05:00
Lioncash afaf2a99d3
apic_internal.h: Include cpu.h directly
apic_internal.h relies on cpu.h having been included (for the
X86CPU type); include it directly rather than relying on it
being pulled in via one of the other includes like timer.h.

Backports commit 20fbcfdd58ea47607a5755979d43f8c48ac93f08 from qemu
2018-02-17 15:23:29 -05:00
Peter Maydell d3a00d97bc
qemu-common.h: Move muldiv64() to host-utils.h
Move the muldiv64() function from qemu-common.h to host-utils.h.
This puts it together with all the other arithmetic functions
where we provide a version with __int128_t and a fallback
without, and allows headers which need muldiv64() to avoid
including qemu-common.h.

We don't include host-utils from qemu-common.h, to avoid dragging
more things into qemu-common.h than it already has; in practice
everywhere that needs muldiv64() can get it via qemu/timer.h.

Backports commit 49caffe0cc95a9d0dc344e3328be8197f3536cf8 from qemu
2018-02-17 15:23:29 -05:00
Peter Maydell fa87410077
osdep.h: Add header comment
Add a header comment to osdep.h, explaining what the header is for
and some rules to avoid circular-include difficulties.

Backports commit 03557b9abaee78e9d1ef5cd236d32a7b3e75e6f8 from qemu
2018-02-17 15:23:29 -05:00
Lioncash 9c63994b45
osdep.h: Move some OS header includes and fixups from qemu-common.h
qemu-common.h has some system header includes and fixups for
things that might be missing. This is really an OS dependency
and belongs in osdep.h, so move it across.

Backports commit bfe7e449f14313f646da621288ca2fd12223414f from qemu
2018-02-17 15:23:29 -05:00
Peter Maydell 19cd2a7ca4
qemu-common.h: Move Win32 fixups into os-win32.h
qemu-common.h includes some fixups for things the Win32
headers don't define or define weirdly. These really
belong in os-win32.h, so move them there.

Backports commit 1aad8104f3b69206da1f868639e1f69c26f6d482 from qemu
2018-02-17 15:23:29 -05:00
Peter Maydell d21aec2212
qemu-common.h: Document cutils.c string functions
Add documentation comments for various utility string functions
which we have implemented in util/cutils.c:
 pstrcpy()
 strpadcpy()
 pstrcat()
 strstart()
 stristart()
 qemu_strnlen()
 qemu_strsep()

Backports commit ab6036630865eff8bb12dd51dfa6921b4607fc81 from qemu
2018-02-17 15:23:28 -05:00
Lioncash cef0353be4
qemu-common: Add missing string util functions 2018-02-17 15:23:28 -05:00
Paolo Bonzini 542f162b35
cutils: add strpadcpy()
Backports commit 2a025ae454c361fb03aadf88e8a2f678b80b38e6 from qemu
2018-02-17 15:23:28 -05:00
Peter Maydell 7d5ef87f8c
compiler.h: Use glue() in QEMU_BUILD_BUG_ON define
Rather than rolling custom concatenate-strings macros for the
QEMU_BUILD_BUG_ON macro to use, use the glue() macro we already
have (since it's now available to us in this header).

Backports commit 24134c4e9126bf505b612e901c63a102fc471083 from qemu
2018-02-17 15:23:28 -05:00
Peter Maydell 29a7d89d19
osdep.h: Move some compiler-specific things to compiler.h
osdep.h has a few things which are really compiler specific;
move them to compiler.h, and include compiler.h from osdep.h.

Backports commit 4912086865083a008f4fb73173fd0ddf2206c4d9 from qemu
2018-02-17 15:23:28 -05:00
Peter Maydell c6a4c2fa17
osdep.h: Remove qemu_printf
qemu_printf is an ancient remnant which has been a simple #define to
printf for over a decade, and is used in only a few places. Expand
it out in those places and remove the #define.

Backports commit 71baf787d8fa2a5d186f22d8154069fd212be37f from qemu
2018-02-17 15:23:27 -05:00
Peter Crosthwaite 590c3dbb76
cpu_defs: Simplify CPUTLB padding logic
There was a complicated subtractive arithmetic for determining the
padding on the CPUTLBEntry structure. Simplify this with a union.

Backports commit b4a4b8d0e0767c85946fd8fc404643bf5766351a from qemu
2018-02-17 15:23:27 -05:00
Eduardo Habkost d5c7362e03
pc: Move PCMachineClass, PCMachineState to qemu/typedefs.h
They will be used inside hw/xen/xen.h, which doesn't include
hw/i386/pc.h.

Backports commit 8170dfa077761ed979b45f608cf706253a764f0d from qemu
2018-02-17 15:23:27 -05:00
Peter Crosthwaite 6279dfc113
cpu: Add wrapper for the set_pc() hook
Add a wrapper around the CPUClass::set_pc() hook.

Backports commit 2991b8904730d663f12ad42e35798ecc22fe151c from qemu
2018-02-17 15:23:19 -05:00
Peter Crosthwaite 9e23308b66
cpu: Change cpu_exec_init() arg to cpu, not env
The callers (most of them in target-foo/cpu.c) to this function all
have the cpu pointer handy. Just pass it to avoid an ENV_GET_CPU() from
core code (in exec.c).

Backports commit 4bad9e392e788a218967167a38ce2ae7a32a6231 from qemu
2018-02-17 15:23:18 -05:00
Peter Crosthwaite 8200453545
translate-all: Change tb_flush() env argument to cpu
All of the core-code usages of this API have the cpu pointer handy so
pass it in. There are only 3 architecture specific usages (2 of which
are commented out) which can just use ENV_GET_CPU() locally to get the
cpu pointer. The reduces core code usage of the CPU env, which brings
us closer to common-obj'ing these core files.

Backports commit bbd77c180d7ff1b04a7661bb878939b2e1d23798 from qemu
2018-02-17 15:23:18 -05:00
Daniel P. Berrange 2e97ecfbcd
crypto: move built-in AES implementation into crypto/
To prepare for a generic internal cipher API, move the
built-in AES implementation into the crypto/ directory

Backports commit 6f2945cde60545aae7f31ab9d5ef29531efbc94f from qemu
2018-02-17 15:23:17 -05:00
Daniel P. Berrange 5019f39c15
crypto: introduce new module for computing hash digests
Introduce a new crypto/ directory that will (eventually) contain
all the cryptographic related code. This initially defines a
wrapper for initializing gnutls and for computing hashes with
gnutls. The former ensures that gnutls is guaranteed to be
initialized exactly once in QEMU regardless of CLI args. The
block quorum code currently fails to initialize gnutls so it
only works by luck, if VNC server TLS is not requested. The
hash APIs avoids the need to litter the rest of the code with
preprocessor checks and simplifies callers by allocating the
correct amount of memory for the requested hash.

Backports commit ddbb0d09661f5fce21b335ba9aea8202d189b98e from qemu
2018-02-17 15:23:17 -05:00
Peter Crosthwaite 13b919f5c8
cpu-all: complete real host page size API
Currently the "host" page size alignment API is really aligning to both
host and target page sizes. There is the qemu_real_page_size which can
be used for the actual host page size but it's missing a mask and ALIGN
macro as provided for qemu_page_size. Complete the API. This allows
system level code that cares about the host page size to use a
consistent alignment interface without having to un-needingly align to
the target page size. This also reduces system level code dependency
on the cpu specific TARGET_PAGE_SIZE.

Backports commit 4e51361d79289aee2985dfed472f8d87bd53a8df from qemu
2018-02-17 15:23:16 -05:00
Peter Maydell 2f3f2ae092
Stop including qemu-common.h in memory.h
Including qemu-common.h from other header files is generally a bad
idea, because it means it's very easy to end up with a circular
dependency. For instance, if we wanted to include memory.h from
qom/cpu.h we'd end up with this loop:
memory.h -> qemu-common.h -> cpu.h -> cpu-qom.h -> qom/cpu.h -> memory.h

Remove the include from memory.h. This requires us to fix up a few
other files which were inadvertently getting declarations indirectly
through memory.h.

The biggest change is splitting the fprintf_function typedef out
into its own header so other headers can get at it without having
to include qemu-common.h.

Backports commit fba0a593b2809ecdda68650952cf3d3332ac1990 from qemu
2018-02-17 15:23:16 -05:00
Jan Kiszka b93c24ba31
memory: Add global-locking property to memory regions
This introduces the memory region property "global_locking". It is true
by default. By setting it to false, a device model can request BQL-free
dispatching of region accesses to its r/w handlers. The actual BQL
break-up will be provided in a separate patch.

Backports commit 196ea13104f802c508e57180b2a0d2b3418989a3 from qemu
2018-02-17 15:23:16 -05:00
Peter Crosthwaite 82a22d8f3a
cpu-defs: Move out TB_JMP defines
These are not Architecture specific in any way so move them out of
cpu-defs.h. tb-hash.h is an appropriate place as a leading user and
their strong relationship to TB hashing and caching.

Backports commit 41da4bd6420afd1209c408974920f63ff9c658e1 from qemu
2018-02-17 15:23:15 -05:00
Peter Crosthwaite 09d23c6604
include/exec: Move tb hash functions out
This is one of very few things in exec-all with a genuine CPU
architecture dependency. Move these hashing helpers to a new
header to trim exec-all.h down to a near architecture-agnostic
header.

The defs are only used by cpu-exec and translate-all which are both
arch-obj's so the new tb-hash.h has no core code usage.

Backports commit e1b89321bafea9fb33d87852fc91fee579d17dfe from qemu
2018-02-17 15:23:15 -05:00
Peter Crosthwaite 860e4184df
include/exec: Move standard exceptions to cpu-all.h
These exception indicies are generic and don't have any reliance on the
per-arch cpu.h defs. Move them to cpu-all.h so they can be used by core
code that does not have access to cpu-defs.h.

Backports commit 9e0dc48c9f05505b53cb28f860456a0648e56ddf from qemu
2018-02-17 15:23:15 -05:00