Commit Graph

2666 Commits

Author SHA1 Message Date
Fredrik Noring
497f072b15 target/mips: Add R5900 Multimedia Instruction overview note
Add a comment on R5900 MMI ASE (short overview).

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-24 15:07:42 +02:00
Fredrik Noring
6f692818a7 target/mips: Define R5900 ISA, MMI ASE, and R5900 CPU preprocessor constants
The R5900 implements the 64-bit MIPS III instruction set except
DMULT, DMULTU, DDIV, DDIVU, LL, SC, LLD and SCD. The MIPS IV
instructions MOVN, MOVZ and PREF are implemented. It has the
R5900-specific three-operand instructions MADD, MADDU, MULT and
MULTU as well as pipeline 1 versions MULT1, MULTU1, DIV1, DIVU1,
MADD1, MADDU1, MFHI1, MFLO1, MTHI1 and MTLO1. A set of 93 128-bit
multimedia instructions specific to the R5900 is also implemented.

The Toshiba TX System RISC TX79 Core Architecture manual:

https://wiki.qemu.org/File:C790.pdf

describes the C790 processor that is a follow-up to the R5900. There
are a few notable differences in that the R5900 FPU

- is not IEEE 754-1985 compliant,
- does not implement double format, and
- its machine code is nonstandard.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Fredrik Noring <noring@nocrew.org>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-24 15:07:42 +02:00
Peter Maydell
13399aad4f Error reporting patches for 2018-10-22
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-10-22' into staging

Error reporting patches for 2018-10-22

# gpg: Signature made Mon 22 Oct 2018 13:20:23 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2018-10-22: (40 commits)
  error: Drop bogus "use error_setg() instead" admonitions
  vpc: Fail open on bad header checksum
  block: Clean up bdrv_img_create()'s error reporting
  vl: Simplify call of parse_name()
  vl: Fix exit status for -drive format=help
  blockdev: Convert drive_new() to Error
  vl: Assert drive_new() does not fail in default_drive()
  fsdev: Clean up error reporting in qemu_fsdev_add()
  spice: Clean up error reporting in add_channel()
  tpm: Clean up error reporting in tpm_init_tpmdev()
  numa: Clean up error reporting in parse_numa()
  vnc: Clean up error reporting in vnc_init_func()
  ui: Convert vnc_display_init(), init_keyboard_layout() to Error
  ui/keymaps: Fix handling of erroneous include files
  vl: Clean up error reporting in device_init_func()
  vl: Clean up error reporting in parse_fw_cfg()
  vl: Clean up error reporting in mon_init_func()
  vl: Clean up error reporting in machine_set_property()
  vl: Clean up error reporting in chardev_init_func()
  qom: Clean up error reporting in user_creatable_add_opts_foreach()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-23 17:20:23 +01:00
Peter Maydell
b312532fd0 * RTC fixes (Artem)
* icount fixes (Artem)
 * rr fixes (Pavel, myself)
 * hotplug cleanup (Igor)
 * SCSI fixes (myself)
 * 4.20-rc1 KVM header update (myself)
 * coalesced PIO support (Peng Hao)
 * HVF fixes (Roman B.)
 * Hyper-V refactoring (Roman K.)
 * Support for Hyper-V IPI (Vitaly)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* RTC fixes (Artem)
* icount fixes (Artem)
* rr fixes (Pavel, myself)
* hotplug cleanup (Igor)
* SCSI fixes (myself)
* 4.20-rc1 KVM header update (myself)
* coalesced PIO support (Peng Hao)
* HVF fixes (Roman B.)
* Hyper-V refactoring (Roman K.)
* Support for Hyper-V IPI (Vitaly)

# gpg: Signature made Fri 19 Oct 2018 12:47:58 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (47 commits)
  replay: pass raw icount value to replay_save_clock
  target/i386: kvm: just return after migrate_add_blocker failed
  hyperv_testdev: add SynIC message and event testmodes
  hyperv: process POST_MESSAGE hypercall
  hyperv: add support for KVM_HYPERV_EVENTFD
  hyperv: process SIGNAL_EVENT hypercall
  hyperv: add synic event flag signaling
  hyperv: add synic message delivery
  hyperv: make overlay pages for SynIC
  hyperv: only add SynIC in compatible configurations
  hyperv: qom-ify SynIC
  hyperv:synic: split capability testing and setting
  i386: add hyperv-stub for CONFIG_HYPERV=n
  default-configs: collect CONFIG_HYPERV* in hyperv.mak
  hyperv: factor out arch-independent API into hw/hyperv
  hyperv: make hyperv_vp_index inline
  hyperv: split hyperv-proto.h into x86 and arch-independent parts
  hyperv: rename kvm_hv_sint_route_set_sint
  hyperv: make HvSintRoute reference-counted
  hyperv: address HvSintRoute by X86CPU pointer
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-19 19:01:07 +01:00
Peter Maydell
31e213e306 Queued tcg patches.
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Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-20181018' into staging

Queued tcg patches.

# gpg: Signature made Fri 19 Oct 2018 07:03:20 BST
# gpg:                using RSA key 64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A  05C0 64DF 38E8 AF7E 215F

* remotes/rth/tags/pull-tcg-20181018: (21 commits)
  cputlb: read CPUTLBEntry.addr_write atomically
  target/s390x: Check HAVE_ATOMIC128 and HAVE_CMPXCHG128 at translate
  target/s390x: Skip wout, cout helpers if op helper does not return
  target/s390x: Split do_cdsg, do_lpq, do_stpq
  target/s390x: Convert to HAVE_CMPXCHG128 and HAVE_ATOMIC128
  target/ppc: Convert to HAVE_CMPXCHG128 and HAVE_ATOMIC128
  target/arm: Check HAVE_CMPXCHG128 at translate time
  target/arm: Convert to HAVE_CMPXCHG128
  target/i386: Convert to HAVE_CMPXCHG128
  tcg: Split CONFIG_ATOMIC128
  tcg: Add tlb_index and tlb_entry helpers
  cputlb: serialize tlb updates with env->tlb_lock
  cputlb: fix assert_cpu_is_self macro
  exec: introduce tlb_init
  target/unicore32: remove tlb_flush from uc32_init_fn
  target/alpha: remove tlb_flush from alpha_cpu_initfn
  tcg: distribute tcg_time into TCG contexts
  tcg: plug holes in struct TCGProfile
  tcg: fix use of uninitialized variable under CONFIG_PROFILER
  tcg: access cpu->icount_decr.u16.high with atomics
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-19 16:17:32 +01:00
Markus Armbruster
0765691e97 cpus hw target: Use warn_report() & friends to report warnings
Calling error_report() in a function that takes an Error ** argument
is suspicious.  Convert a few that are actually warnings to
warn_report().

While there, split a warning consisting of multiple sentences to
conform to conventions spelled out in warn_report()'s contract.

Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Fam Zheng <famz@redhat.com>
Cc: Wei Huang <wei@redhat.com>
Cc: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20181017082702.5581-5-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Li Qiang
0c2ed83fa4 target/i386: kvm: just return after migrate_add_blocker failed
When migrate_add_blocker failed, the invtsc_mig_blocker is not
appended so no need to remove. This can save several instructions.

Signed-off-by: Li Qiang <liq3ea@163.com>
Message-Id: <20181006091816.7659-1-liq3ea@163.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
76036a5fc7 hyperv: process POST_MESSAGE hypercall
Add handling of POST_MESSAGE hypercall.  For that, add an interface to
regsiter a handler for the messages arrived from the guest on a
particular connection id (IOW set up a message connection in Hyper-V
speak).

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-10-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
e6ea9f45b7 hyperv: process SIGNAL_EVENT hypercall
Add handling of SIGNAL_EVENT hypercall.  For that, provide an interface
to associate an EventNotifier with an event connection number, so that
it's signaled when the SIGNAL_EVENT hypercall with the matching
connection ID is called by the guest.

Support for using KVM functionality for this will be added in a followup
patch.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-8-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
267e071bd6 hyperv: make overlay pages for SynIC
Per Hyper-V spec, SynIC message and event flag pages are to be
implemented as so called overlay pages.  That is, they are owned by the
hypervisor and, when mapped into the guest physical address space,
overlay the guest physical pages such that

1) the overlaid guest page becomes invisible to the guest CPUs until the
   overlay page is turned off
2) the contents of the overlay page is preserved when it's turned off
   and back on, even at a different address; it's only zeroed at vcpu
   reset

This particular nature of SynIC message and event flag pages is ignored
in the current code, and guest physical pages are used directly instead.
This happens to (mostly) work because the actual guests seem not to
depend on the features listed above.

This patch implements those pages as the spec mandates.

Since the extra RAM regions, which introduce migration incompatibility,
are only added at SynIC object creation which only happens when
hyperv_synic_kvm_only == false, no extra compat logic is necessary.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-5-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
9b4cf107b0 hyperv: only add SynIC in compatible configurations
Certain configurations do not allow SynIC to be used in QEMU.  In
particular,

- when hyperv_vpindex is off, SINT routes can't be used as they refer to
  the destination vCPU by vp_index

- older KVM (which doesn't expose KVM_CAP_HYPERV_SYNIC2) zeroes out
  SynIC message and event pages on every msr load, breaking migration

OTOH in-KVM users of SynIC -- SynIC timers -- do work in those
configurations, and we shouldn't stop the guest from using them.

To cover both scenarios, introduce an X86CPU property that makes CPU
init code to skip creation of the SynIC object (and thus disables any
SynIC use in QEMU) but keeps the KVM part of the SynIC working.
The property is clear by default but is set via compat logic for older
machine types.

As a result, when hv_synic and a modern machine type are specified, QEMU
will refuse to run unless vp_index is on and the kernel is recent
enough.  OTOH with an older machine type QEMU will run fine with
hv_synic=on against an older kernel and/or without vp_index enabled but
will disallow the in-QEMU uses of SynIC (in e.g. VMBus).

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-4-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
606c34bfd5 hyperv: qom-ify SynIC
Make Hyper-V SynIC a device which is attached as a child to a CPU.  For
now it only makes SynIC visibile in the qom hierarchy, and maintains its
internal fields in sync with the respecitve msrs of the parent cpu (the
fields will be used in followup patches).

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-3-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
729ce7e1b6 hyperv:synic: split capability testing and setting
Put a bit more consistency into handling KVM_CAP_HYPERV_SYNIC capability,
by checking its availability and determining the feasibility of hv-synic
property first, and enabling it later.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082217.29481-2-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
8417442a34 i386: add hyperv-stub for CONFIG_HYPERV=n
This will allow to build slightly leaner QEMU that supports some HyperV
features of KVM (e.g. SynIC timers, PV spinlocks, APIC assists, etc.)
but nothing else on the QEMU side.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082041.29380-6-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:14 +02:00
Roman Kagan
701189e311 hyperv: factor out arch-independent API into hw/hyperv
A significant part of hyperv.c is not actually tied to x86, and can
be moved to hw/.

This will allow to maintain most of Hyper-V and VMBus
target-independent, and to avoid conflicts with inclusion of
arch-specific headers down the road in VMBus implementation.

Also this stuff can now be opt-out with CONFIG_HYPERV.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082041.29380-4-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
51f0ac6381 hyperv: make hyperv_vp_index inline
Also make the inverse function, hyperv_find_vcpu, static as it's not
used outside hyperv.c

This paves the way to making hyperv.c built optionally.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082041.29380-3-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
5116122af7 hyperv: split hyperv-proto.h into x86 and arch-independent parts
Some parts of the Hyper-V hypervisor-guest interface appear to be
target-independent, so move them into a proper header.

Not that Hyper-V ARM64 emulation is around the corner but it seems more
conveninent to have most of Hyper-V and VMBus target-independent, and
allows to avoid conflicts with inclusion of arch-specific headers down
the road in VMBus implementation.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921082041.29380-2-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
2486cb8eba hyperv: rename kvm_hv_sint_route_set_sint
There's nothing kvm-specific in it so follow the suite and replace
"kvm_hv" prefix with "hyperv".

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-9-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
3d3e6e85c3 hyperv: make HvSintRoute reference-counted
Multiple entities (e.g. VMBus devices) can use the same SINT route.  To
make their lives easier in maintaining SINT route ownership, make it
reference-counted.  Adjust the respective API names accordingly.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-8-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
09cfb2f635 hyperv: address HvSintRoute by X86CPU pointer
Use X86CPU pointer to refer to the respective HvSintRoute instead of
vp_index.  This is more convenient and also paves the way for future
enhancements.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-7-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
b56920245c hyperv: allow passing arbitrary data to sint ack callback
Make sint ack callback accept an opaque pointer, that is stored on
sint_route at creation time.

This allows for more convenient interaction with the callback.

Besides, nothing outside hyperv.c should need to know the layout of
HvSintRoute fields any more so its declaration can be removed from the
header.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-6-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
bd4ed63caa hyperv: synic: only setup ack notifier if there's a callback
There's no point setting up an sint ack notifier if no callback is
specified.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-5-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Kagan
42e4b0e1fb hyperv: cosmetic: g_malloc -> g_new
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20180921081836.29230-4-rkagan@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:13 +02:00
Roman Bolshakov
92cc3aaa1f i386: hvf: Remove hvf_disabled
accel_init_machine sets *(acc->allowed) to true if acc->init_machine(ms)
succeeds. There's no need to have both hvf_allowed and hvf_disabled.

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20181018143051.48508-1-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Roman Bolshakov
b4e1af8961 i386: hvf: Fix register refs if REX is present
According to Intel(R)64 and IA-32 Architectures Software Developer's
Manual, the following one-byte registers should be fetched when REX
prefix is present (sorted by reg encoding index):
AL, CL, DL, BL, SPL, BPL, SIL, DIL, R8L - R15L

The first 8 are fetched if REX.R is zero, the last 8 if non-zero.

The following registers should be fetched for instructions without REX
prefix (also sorted by reg encoding index):
AL, CL, DL, BL, AH, CH, DH, BH

Current emulation code doesn't handle accesses to SPL, BPL, SIL, DIL
when REX is present, thefore an instruction 40883e "mov %dil,(%rsi)" is
decoded as "mov %bh,(%rsi)".

That caused an infinite loop in vp_reset:
https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg03293.html

Signed-off-by: Roman Bolshakov <r.bolshakov@yadro.com>
Message-Id: <20181018134401.44471-1-r.bolshakov@yadro.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Vitaly Kuznetsov
6b7a98303b i386/kvm: add support for Hyper-V IPI send
Hyper-V PV IPI support is merged to KVM, enable the feature in Qemu. When
enabled, this allows Windows guests to send IPIs to other vCPUs with a
single hypercall even when there are >64 vCPUs in the request.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Roman Kagan <rkagan@virtuozzo.com>
Message-Id: <20181009130853.6412-3-vkuznets@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Paolo Bonzini
b31c003895 target-i386: kvm: do not initialize padding fields
The exception.pad field is going to be renamed to pending in an upcoming
header file update.  Remove the unnecessary initialization; it was
introduced to please valgrind (commit 7e680753cf) but they were later
rendered unnecessary by commit 076796f8fd, which added the "= {}"
initializer to the declaration of "events".  Therefore the patch does
not change behavior in any way.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:04 +02:00
Richard Henderson
830bf10c82 target/s390x: Check HAVE_ATOMIC128 and HAVE_CMPXCHG128 at translate
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
72d8ad67ba target/s390x: Skip wout, cout helpers if op helper does not return
When op raises an exception, it may not have initialized the output
temps that would be written back by wout or cout.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
0c9fa16805 target/s390x: Split do_cdsg, do_lpq, do_stpq
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
5e95612e2e target/s390x: Convert to HAVE_CMPXCHG128 and HAVE_ATOMIC128
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
f34ec0f6d7 target/ppc: Convert to HAVE_CMPXCHG128 and HAVE_ATOMIC128
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
62823083b8 target/arm: Check HAVE_CMPXCHG128 at translate time
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
1ec182c333 target/arm: Convert to HAVE_CMPXCHG128
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Richard Henderson
e1ed709fbe target/i386: Convert to HAVE_CMPXCHG128
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 19:46:53 -07:00
Emilio G. Cota
022d6378c7 target/unicore32: remove tlb_flush from uc32_init_fn
As far as I can tell tlb_flush does not need to be called
this early. tlb_flush is eventually called after the CPU
has been realized.

This change paves the way to the introduction of tlb_init,
which will be called from cpu_exec_realizefn.

Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20181009174557.16125-3-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 18:58:10 -07:00
Emilio G. Cota
6e11beecfd target/alpha: remove tlb_flush from alpha_cpu_initfn
As far as I can tell tlb_flush does not need to be called
this early. tlb_flush is eventually called after the CPU
has been realized.

This change paves the way to the introduction of tlb_init,
which will be called from cpu_exec_realizefn.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <20181009174557.16125-2-cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2018-10-18 18:58:10 -07:00
Dimitrije Nikolic
0d30b3bbc5 target/mips: Add opcodes for nanoMIPS EVA instructions
Add opcodes for nanoMIPS EVA instructions: CACHEE, LBE, LBUE, LHE,
LHUE, LLE, LLWPE, LWE, PREFE, SBE, SCE, SCWPE, SHE, SWE.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Dimitrije Nikolic <dnikolic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Stefan Markovic
d5ebcbaf09 target/mips: Fix misplaced 'break' in handling of NM_SHRA_R_PH
Fix misplaced 'break' in handling of NM_SHRA_R_PH. Found by
Coverity (CID 1395627).

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Matthew Fortune
fdac60cd04 target/mips: Fix emulation of microMIPS R6 <SELEQZ|SELNEZ>.<D|S>
Fix emulation of microMIPS R6 <SELEQZ|SELNEZ>.<D|S> instructions.
Their handling was permuted.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Matthew Fortune <matthew.fortune@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
074cfcb4da target/mips: Implement hardware page table walker for MIPS32
Implement hardware page table walker. This implementation is
limiter only to MIPS32.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
6301079557 target/mips: Add reset state for PWSize and PWField registers
Add reset state for PWSize and PWField registers. The reset state
is different for pre-R6 and R6 (and post-R6) ISAa.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
103be64c26 target/mips: Add CP0 PWCtl register
Add PWCtl register (CP0 Register 5, Select 6).

The PWCtl register configures hardware page table walking for TLB
refills.

This register is required for the hardware page walker feature. It
exists only if Config3 PW bit is set to 1. It contains following
fields:

PWEn     (31)   - Hardware Page Table walker enable
PWDirExt (30)   - If 1, 4-th level implemented (MIPS64 only)
XK       (28)   - If 1, walker handles xkseg (MIPS64 only)
XS       (27)   - If 1, walker handles xsseg (MIPS64 only)
XU       (26)   - If 1, walker handles xuseg (MIPS64 only)
DPH      (7)    - Dual Page format of Huge Page support
HugePg   (6)    - Huge Page PTE supported in Directory levels
PSn      (5..0) - Bit position of PTEvld in Huge Page PTE

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
20b28ebc49 target/mips: Add CP0 PWSize register
Add PWSize register (CP0 Register 5, Select 7).

The PWSize register configures hardware page table walking for TLB
refills.

This register is required for the hardware page walker feature. It
exists only if Config3 PW bit is set to 1. It contains following
fields:

BDW  (37..32) Base Directory index width (MIPS64 only)
GDW  (29..24) Global Directory index width
UDW  (23..18) Upper Directory index width
MDW  (17..12) Middle Directory index width
PTW  (11..6 ) Page Table index width
PTEW ( 5..0 ) Left shift applied to the Page Table index

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
fa75ad1459 target/mips: Add CP0 PWField register
Add PWField register (CP0 Register 5, Select 6).

The PWField register configures hardware page table walking for TLB
refills.

This register is required for the hardware page walker feature. It
exists only if Config3 PW bit is set to 1. It contains following
fields:

MIPS64:
BDI  (37..32) - Base Directory index
GDI  (29..24) - Global Directory index
UDI  (23..18) - Upper Directory index
MDI  (17..12) - Middle Directory index
PTI  (11..6 ) - Page Table index
PTEI ( 5..0 ) - Page Table Entry shift

MIPS32:
GDW  (29..24) - Global Directory index
UDW  (23..18) - Upper Directory index
MDW  (17..12) - Middle Directory index
PTW  (11..6 ) - Page Table index
PTEW ( 5..0 ) - Page Table Entry shift

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Yongbok Kim
5e31fdd59f target/mips: Add CP0 PWBase register
Add PWBase register (CP0 Register 5, Select 5).

The PWBase register contains the Page Table Base virtual address.

This register is required for the hardware page walker feature. It
exists only if Config3 PW bit is set to 1.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Yongbok Kim <yongbok.kim@mips.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Stefan Markovic
49735f76db target/mips: Add CP0 Config2 to DisasContext
Add field corresponding to CP0 Config2 to DisasContext. This is
needed for availability control via Config2 bits.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Stefan Markovic
908f6be1b9 target/mips: Improve DSP R2/R3-related naming
Do following replacements:

ASE_DSPR2 -> ASE_DSP_R2
ASE_DSPR3 -> ASE_DSP_R3
MIPS_HFLAG_DSPR2 -> MIPS_HFLAG_DSP_R2
MIPS_HFLAG_DSPR3 -> MIPS_HFLAG_DSP_R3
check_dspr2() -> check_dsp_r2()
check_dspr3() -> check_dsp_r3()

and several other similar minor replacements.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Stefan Markovic
59e781fbf1 target/mips: Add availability control for DSP R3 ASE
Add infrastructure for availability control for DSP R3 ASE MIPS
instructions. Only BPOSGE32C currently belongs to DSP R3 ASE, but
this is likely to be changed in near future.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00
Stefan Markovic
6208f09441 target/mips: Add bit definitions for DSP R3 ASE
Add DSP R3 ASE related bit definition for insn_flags and hflags.

Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Signed-off-by: Stefan Markovic <smarkovic@wavecomp.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
2018-10-18 20:37:20 +02:00