Commit Graph

6121 Commits

Author SHA1 Message Date
Peter Maydell
246ff44295 linux-user/sparc: Correct sparc64_get/set_context() FPU handling
The handling of the FPU state in sparc64_get_context() and
sparc64_set_context() is not the same as what the kernel actually
does: we unconditionally read and write the FP registers and the
FSR, GSR and FPRS, but the kernel logic is more complicated:
 * in get_context the kernel has code for saving FPU registers,
   but it is hidden inside an "if (fenab) condition and the
   fenab flag is always set to 0 (inside an "#if 1" which has
   been in the kernel for over 15 years). So the effect is that
   the FPU state part is always written as zeroes.
 * in set_context the kernel looks at the fenab field in the
   structure from the guest, and only restores the state if
   it is set; it also looks at the structure's FPRS to see
   whether either the upper or lower or both halves of the
   register file have valid data.

Bring our implementations into line with the kernel:
 * in get_context:
    - clear the entire target_ucontext at the top of the
      function (as the kernel does)
    - then don't write the FPU state, so those fields remain zero
    - this fixes Coverity issue CID 1432305 by deleting the code
      it was complaining about
 * in set_context:
    - check the fenab and the fpsr to decide which parts of
      the FPU data to restore, if any
    - instead of setting the FPU registers by doing two
      32-bit loads and filling in the .upper and .lower parts
      of the CPU_Double union separately, just do a 64-bit
      load of the whole register at once. This fixes Coverity
      issue CID 1432303 because we now access the dregs[] part
      of the mcfpu_fregs union rather than the sregs[] part
      (which is not large enough to actually cover the whole of
      the data, so we were accessing off the end of sregs[])

We change both functions in a single commit to avoid potentially
breaking bisection.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201106152738.26026-2-peter.maydell@linaro.org>
[lv: fix FPRS_DU loop s/31/32/]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-18 11:23:29 +01:00
Philippe Mathieu-Daudé
ce54384405 linux-user/elfload: Introduce MIPS GET_FEATURE_REG_EQU() macro
ISA features are usually denoted in read-only bits from
CPU registers. Add the GET_FEATURE_REG_EQU() macro which
checks if a CPU register has bits set to a specific value.

Use the macro to check the 'Architecture Revision' level
of the Config0 register, which is '2' when the Release 6
ISA is implemented.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214003215.344522-5-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-17 10:34:59 +01:00
Peter Maydell
657ee88ef3 target-arm queue:
* gdbstub: Correct misparsing of vCont C/S requests
  * openrisc: Move pic_cpu code into CPU object proper
  * nios2: Move IIC code into CPU object proper
  * Improve reporting of ROM overlap errors
  * xlnx-versal: Add USB support
  * hw/misc/zynq_slcr: Avoid #DIV/0! error
  * Numonyx: Fix dummy cycles and check for SPI mode on cmds
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201215' into staging

target-arm queue:
 * gdbstub: Correct misparsing of vCont C/S requests
 * openrisc: Move pic_cpu code into CPU object proper
 * nios2: Move IIC code into CPU object proper
 * Improve reporting of ROM overlap errors
 * xlnx-versal: Add USB support
 * hw/misc/zynq_slcr: Avoid #DIV/0! error
 * Numonyx: Fix dummy cycles and check for SPI mode on cmds

# gpg: Signature made Tue 15 Dec 2020 13:59:46 GMT
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20201215:
  hw/block/m25p80: Fix Numonyx fast read dummy cycle count
  hw/block/m25p80: Check SPI mode before running some Numonyx commands
  hw/block/m25p80: Fix when VCFG XIP bit is set for Numonyx
  hw/block/m25p80: Make Numonyx config field names more accurate
  hw/misc/zynq_slcr: Avoid #DIV/0! error
  arm: xlnx-versal: Connect usb to virt-versal
  usb: xlnx-usb-subsystem: Add xilinx usb subsystem
  usb: Add DWC3 model
  usb: Add versal-usb2-ctrl-regs module
  elf_ops.h: Be more verbose with ROM blob names
  elf_ops.h: Don't truncate name of the ROM blobs we create
  hw/core/loader.c: Improve reporting of ROM overlap errors
  hw/core/loader.c: Track last-seen ROM in rom_check_and_register_reset()
  target/nios2: Use deposit32() to update ipending register
  target/nios2: Move nios2_check_interrupts() into target/nios2
  target/nios2: Move IIC code into CPU object proper
  target/openrisc: Move pic_cpu code into CPU object proper
  hw/openrisc/openrisc_sim: Abstract out "get IRQ x of CPU y"
  hw/openrisc/openrisc_sim: Use IRQ splitter when connecting IRQ to multiple CPUs
  gdbstub: Correct misparsing of vCont C/S requests

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-15 16:58:27 +00:00
Peter Maydell
69e92bd558 Machine queue, 2020-12-15
* qdev code cleanup
 * Convert some QOM instance properties to class properties
 * Update git URLs on MAINTAINERS
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

Machine queue, 2020-12-15

* qdev code cleanup
* Convert some QOM instance properties to class properties
* Update git URLs on MAINTAINERS

# gpg: Signature made Tue 15 Dec 2020 15:18:47 GMT
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (25 commits)
  MAINTAINERS: Update my git repository URLs
  qdev: Move UUID property to qdev-properties-system.c
  qdev: Make qdev_propinfo_get_uint16() static
  qdev: Make error_set_from_qdev_prop_error() get Object* argument
  qdev: Make check_prop_still_unset() get Object* argument
  qdev: Make qdev_find_global_prop() get Object* argument
  qdev: Make qdev_get_prop_ptr() get Object* arg
  qdev: Make bit_prop_set() get Object* argument
  qdev: Make PropertyInfo.print method get Object* argument
  qdev: Don't use dev->id on set_size32() error message
  sparc: Check dev->realized at sparc_set_nwindows()
  qdev: Check dev->realized at set_size()
  qdev: Move property code to qdev-properties.[ch]
  cpu: Move cpu_common_props to hw/core/cpu.c
  cs4231: Get rid of empty property array
  netfilter: Use class properties
  netfilter: Reorder functions
  can_host: Use class properties
  arm/cpu64: Register "aarch64" as class property
  virt: Register "its" as class property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-15 15:35:47 +00:00
Eduardo Habkost
0ea0a42ef6 sparc: Check dev->realized at sparc_set_nwindows()
sparc_set_nwindows() is one of the very few property setters that
don't check dev->realized, and there's no reason for it to be
special.  Check dev->realized like the other setters.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20201211220529.2290218-6-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-15 10:02:07 -05:00
Eduardo Habkost
85cc807cbc arm/cpu64: Register "aarch64" as class property
Class properties make QOM introspection simpler and easier, as
they don't require an object to be instantiated.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20201111183823.283752-8-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-15 10:02:07 -05:00
Eduardo Habkost
f5730c69f0 i386: Register feature bit properties as class properties
Class properties make QOM introspection simpler and easier, as
they don't require an object to be instantiated.

Also, the hundreds of instance properties were having an impact
on QMP commands that create temporary CPU objects.  On my
machine, run time of qmp_query_cpu_definitions() changed
from ~200ms to ~16ms after applying this patch.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20201111183823.283752-5-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-12-15 10:01:32 -05:00
Peter Maydell
05bcbcf279 target/nios2: Use deposit32() to update ipending register
In nios2_cpu_set_irq(), use deposit32() rather than raw shift-and-mask
operations to set the appropriate bit in the ipending register.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201129174022.26530-4-peter.maydell@linaro.org
2020-12-15 12:04:30 +00:00
Peter Maydell
2c87548ef4 target/nios2: Move nios2_check_interrupts() into target/nios2
The function nios2_check_interrupts)() looks only at CPU-internal
state; it belongs in target/nios2, not hw/nios2.  Move it into the
same file as its only caller, so it can just be local to that file.

This removes the only remaining code from cpu_pic.c, so we can delete
that file entirely.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201129174022.26530-3-peter.maydell@linaro.org
Reviewed-by: Wentong Wu <wentong.wu@intel.com>
Tested-by: Wentong Wu <wentong.wu@intel.com>
2020-12-15 12:04:30 +00:00
Peter Maydell
cd2528de2c target/nios2: Move IIC code into CPU object proper
The Nios2 architecture supports two different interrupt controller
options:

 * The IIC (Internal Interrupt Controller) is part of the CPU itself;
   it has 32 IRQ input lines and no NMI support.  Interrupt status is
   queried and controlled via the CPU's ipending and istatus
   registers.

 * The EIC (External Interrupt Controller) interface allows the CPU
   to connect to an external interrupt controller.  The interface
   allows the interrupt controller to present a packet of information
   containing:
    - handler address
    - interrupt level
    - register set
    - NMI mode

QEMU does not model an EIC currently.  We do model the IIC, but its
implementation is split across code in hw/nios2/cpu_pic.c and
hw/intc/nios2_iic.c.  The code in those two files has no state of its
own -- the IIC state is in the Nios2CPU state struct.

Because CPU objects now inherit (indirectly) from TYPE_DEVICE, they
can have GPIO input lines themselves, so we can implement the IIC
directly in the CPU object the same way that real hardware does.

Create named "IRQ" GPIO inputs to the Nios2 CPU object, and make the
only user of the IIC wire up directly to those instead.

Note that the old code had an "NMI" concept which was entirely unused
and also as far as I can see not architecturally correct, since only
the EIC has a concept of an NMI.

This fixes a Coverity-reported trivial memory leak of the IRQ array
allocated in nios2_cpu_pic_init().

Fixes: Coverity CID 1421916
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20201129174022.26530-2-peter.maydell@linaro.org
Reviewed-by: Wentong Wu <wentong.wu@intel.com>
Tested-by: Wentong Wu <wentong.wu@intel.com>
2020-12-15 12:04:30 +00:00
Peter Maydell
71b3254dd2 target/openrisc: Move pic_cpu code into CPU object proper
The openrisc code uses an old style of interrupt handling, where a
separate standalone set of qemu_irqs invoke a function
openrisc_pic_cpu_handler() which signals the interrupt to the CPU
proper by directly calling cpu_interrupt() and cpu_reset_interrupt().
Because CPU objects now inherit (indirectly) from TYPE_DEVICE, they
can have GPIO input lines themselves, and the neater modern way to
implement this is to simply have the CPU object itself provide the
input IRQ lines.

Create GPIO inputs to the OpenRISC CPU object, and make the only user
of cpu_openrisc_pic_init() wire up directly to those instead.

This allows us to delete the hw/openrisc/pic_cpu.c file entirely.

This fixes a trivial memory leak reported by Coverity of the IRQs
allocated in cpu_openrisc_pic_init().

Fixes: Coverity CID 1421934
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stafford Horne <shorne@gmail.com>
Message-id: 20201127225127.14770-4-peter.maydell@linaro.org
2020-12-15 12:04:30 +00:00
Peter Maydell
5bfbd8170c Pull request trivial-patches 20201214
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-6.0-pull-request' into staging

Pull request trivial-patches 20201214

# gpg: Signature made Mon 14 Dec 2020 15:52:07 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-6.0-pull-request:
  configure / meson: Move check for linux/btrfs.h to meson.build
  configure / meson: Move check for sys/kcov.h to meson.build
  configure / meson: Move check for sys/signal.h to meson.build
  configure / meson: Move check for drm.h to meson.build
  configure / meson: Move check for pty.h to meson.build
  configure: Remove the obsolete check for ifaddrs.h
  blockdev: Fix a memleak in drive_backup_prepare()
  block/file-posix: fix a possible undefined behavior
  elf2dmp/pdb: Plug memleak in pdb_init_from_file
  elf2dmp/qemu_elf: Plug memleak in QEMU_Elf_init
  configure: Test if $make actually exists
  ads7846: moves from the hw/display folder to the hw/input folder.
  CODING_STYLE.rst: Be less strict about 80 character limit
  fsdev: open brace '{' following struct go on the same line
  hw/pci-host/pam: Replace magic number by PAM_REGIONS_COUNT definition
  hw/xen: Don't use '#' flag of printf format
  MAINTAINERS: update my email address
  qemu-options.hx: Fix minor issues in icount documentation
  target/i386: tracing: format length values as hex

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-14 20:32:38 +00:00
Peter Maydell
aa14de0866 MIPS patches queue
. Allow executing MSA instructions on Loongson-3A4000
 . Update Huacai Chen email address
 . Various cleanups:
   - unused headers removal
   - use definitions instead of magic values
   - remove dead code
   - avoid calling unused code
 . Various code movements
 
 CI jobs results:
   https://gitlab.com/philmd/qemu/-/pipelines/229120169
   https://cirrus-ci.com/build/4857731557359616
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Merge remote-tracking branch 'remotes/philmd-gitlab/tags/mips-20201213' into staging

MIPS patches queue

. Allow executing MSA instructions on Loongson-3A4000
. Update Huacai Chen email address
. Various cleanups:
  - unused headers removal
  - use definitions instead of magic values
  - remove dead code
  - avoid calling unused code
. Various code movements

CI jobs results:
  https://gitlab.com/philmd/qemu/-/pipelines/229120169
  https://cirrus-ci.com/build/4857731557359616

# gpg: Signature made Sun 13 Dec 2020 20:18:52 GMT
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/mips-20201213: (26 commits)
  target/mips: Use FloatRoundMode enum for FCR31 modes conversion
  target/mips: Remove unused headers from fpu_helper.c
  target/mips: Inline cpu_mips_realize_env() in mips_cpu_realizefn()
  target/mips: Move cpu definitions, reset() and realize() to cpu.c
  target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c
  target/mips: Extract cpu_supports*/cpu_set* translate.c
  hw/mips/malta: Rewrite CP0_MVPConf0 access using deposit()
  hw/mips/malta: Do not initialize MT registers if MT ASE absent
  target/mips: Do not initialize MT registers if MT ASE absent
  target/mips: Introduce ase_mt_available() helper
  target/mips: Remove mips_def_t unused argument from mvp_init()
  target/mips: Remove unused headers from op_helper.c
  target/mips: Remove unused headers from translate.c
  hw/mips: Move address translation helpers to target/mips/
  target/mips: Introduce cpu_supports_isa() taking CPUMIPSState argument
  target/mips: Rename cpu_supports_FEAT() as cpu_type_supports_FEAT()
  target/mips: Explicit Release 6 MMU types
  target/mips: Allow executing MSA instructions on Loongson-3A4000
  target/mips: Also display exception names in user-mode
  target/mips: Remove unused headers from cp0_helper.c
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-14 18:53:30 +00:00
Greg Kurz
d57d72a874 target/ppc: Introduce an mmu_is_64bit() helper
Callers don't really need to know how 64-bit MMU model enums are
computed. Hide this in a helper.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201209173536.1437351-3-groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:54:12 +11:00
Stephane Duverger
d55dfd446c ppc/translate: Use POWERPC_MMU_64 to detect 64-bit MMU models
The ppc_tr_init_disas_context() function currently checks whether the
MMU is 64-bit by ANDing its model type with POWERPC_MMU_64B. This is
wrong : POWERPC_MMU_64B isn't a mask, it is the generic MMU model for
pre-PowerISA-2.03 64-bit CPUs (ie. PowerPC 970 in QEMU).

Use POWERPC_MMU_64 instead of POWERPC_MMU_64B. This should fix a
potential bug with some 32-bit CPUs for which 'need_access_type'
was mis-computed because (POWERPC_MMU_32B & POWERPC_MMU_64B)
happens to be equal to 1. The end result being a crash in
ppc_hash32_direct_store() because the access type isn't set:

        cpu_abort(cs, "ERROR: instruction should not need "
                 "address translation\n");

This doesn't change anything for 'lazy_tlb_flush' since POWERPC_MMU_32B
is checked first.

Fixes: 5f2a625452 ("ppc: Don't set access_type on all load/stores on hash64")
Signed-off-by: Stephane Duverger <stephane.duverger@free.fr>
[groug: - extended patch to address another misuse of POWERPC_MMU_64B
        - updated title and changelog accordingly]
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201209173536.1437351-2-groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:54:12 +11:00
Greg Kurz
f518be3aa3 target/ppc: Remove "compat" property of server class POWER CPUs
This property has been deprecated since QEMU 5.0 by commit 22062e54bb.
We only kept a legacy hack that internally converts "compat" into the
official "max-cpu-compat" property of the pseries machine type.

According to our deprecation policy, we could have removed it for QEMU 5.2
already. Do it now ; since ppc_cpu_parse_featurestr() now just calls the
generic parent_parse_features handler, drop it as well.

Users are supposed to use the "max-cpu-compat" property of the pseries
machine type instead.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <20201201131103.897430-1-groug@kaod.org>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:54:12 +11:00
Giuseppe Musacchio
bcb0b7b1a1 ppc/translate: Rewrite gen_lxvdsx to use gvec primitives
Make the implementation match the lxvwsx one.
The code is now shorter smaller and potentially faster as the
translation will use the host SIMD capabilities if available.

No functional change.

Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Message-Id: <a463dea379da4cb3a22de49c678932f74fb15dd7.1604912739.git.thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:54:09 +11:00
Giuseppe Musacchio
91699dbf30 ppc/translate: Raise exceptions after setting the cc
The PowerISA reference states that the comparison operators update the
FPCC, CR and FPSCR and, if VE=1, jump to the exception handler.

Moving the exception-triggering code after the CC update sequence solves
the problem.

Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201112230130.65262-5-thatlemon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:53:59 +11:00
Giuseppe Musacchio
bc92c260f6 ppc/translate: Delay NaN checking after comparison
Since we always perform a comparison between the two operands avoid
checking for NaN unless the result states they're unordered.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201112230130.65262-4-thatlemon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:53:52 +11:00
Giuseppe Musacchio
132954a830 ppc/translate: Turn the helper macros into functions
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201112230130.65262-3-thatlemon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:53:41 +11:00
Giuseppe Musacchio
3278aa49d5 ppc/translate: Fix unordered f64/f128 comparisons
According to the PowerISA v3.1 reference, Table 68 "Actions for xscmpudp
- Part 1: Compare Unordered", whenever one of the two operands is a NaN
the SO bit is set while the other three bits are cleared.

Apply the same change to xscmpuqp.

The respective ordered counterparts are unaffected.

Signed-off-by: Giuseppe Musacchio <thatlemon@gmail.com>
Message-Id: <20201112230130.65262-2-thatlemon@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:53:26 +11:00
Chen Qun
cf77e27f1e target/ppc: replaced the TODO with LOG_UNIMP and add break for silence warnings
When using -Wimplicit-fallthrough in our CFLAGS, the compiler showed warning:
target/ppc/mmu_helper.c: In function ‘dump_mmu’:
target/ppc/mmu_helper.c:1351:12: warning: this statement may fall through [-Wimplicit-fallthrough=]
 1351 |         if (ppc64_v3_radix(env_archcpu(env))) {
      |            ^
target/ppc/mmu_helper.c:1358:5: note: here
 1358 |     default:
      |     ^~~~~~~

Use "qemu_log_mask(LOG_UNIMP**)" instead of the TODO comment.
And add the break statement to fix it.

Reported-by: Euler Robot <euler.robot@huawei.com>
Signed-off-by: Chen Qun <kuhn.chenqun@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20201116024810.2415819-8-kuhn.chenqun@huawei.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-12-14 15:50:55 +11:00
Philippe Mathieu-Daudé
3533ee301c target/mips: Use FloatRoundMode enum for FCR31 modes conversion
Use the FloatRoundMode enum type introduced in commit 3dede407cc
("softfloat: Name rounding mode enum") instead of 'unsigned int'.

Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201123204448.3260804-2-f4bug@amsat.org>
2020-12-13 20:27:11 +01:00
Philippe Mathieu-Daudé
98cf80baa7 target/mips: Remove unused headers from fpu_helper.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-4-f4bug@amsat.org>
2020-12-13 20:27:11 +01:00
Philippe Mathieu-Daudé
7b884bf51e target/mips: Inline cpu_mips_realize_env() in mips_cpu_realizefn()
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-17-f4bug@amsat.org>
2020-12-13 20:27:11 +01:00
Philippe Mathieu-Daudé
c20cf02bbd target/mips: Move cpu definitions, reset() and realize() to cpu.c
Nothing TCG specific there, move to common cpu code.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-16-f4bug@amsat.org>
2020-12-13 20:27:11 +01:00
Philippe Mathieu-Daudé
a10b453a52 target/mips: Move mips_cpu_add_definition() from helper.c to cpu.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-10-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
ffa657ee70 target/mips: Extract cpu_supports*/cpu_set* translate.c
Move cpu_supports*() and cpu_set_exception_base() from
translate.c to cpu.c.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-9-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
ecc268e7c2 target/mips: Do not initialize MT registers if MT ASE absent
Do not initialize MT-related config registers if the MT ASE
is not present. As some functions access the 'mvp' structure,
we still zero-allocate it.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201204222622.2743175-4-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
17c2c320f3 target/mips: Introduce ase_mt_available() helper
Instead of accessing CP0_Config3 directly and checking
the 'Multi-Threading Present' bit, introduce an helper
to simplify code review.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201204222622.2743175-3-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
585c80ad7b target/mips: Remove mips_def_t unused argument from mvp_init()
mvp_init() doesn't require any CPU definition (beside the
information accessible via CPUMIPSState). Remove the unused
argument.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201204222622.2743175-2-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
5f3013654e target/mips: Remove unused headers from op_helper.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-6-f4bug@amsat.org>
2020-12-13 20:26:02 +01:00
Philippe Mathieu-Daudé
1379307db2 target/mips: Remove unused headers from translate.c
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-3-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
2fd9c5ad44 hw/mips: Move address translation helpers to target/mips/
Address translation is an architectural thing (not hardware
related). Move the helpers from hw/ to target/.

As physical address and KVM are specific to system mode
emulation, restrict this file to softmmu, so it doesn't
get compiled for user-mode emulation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-2-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
df6adb68c1 target/mips: Introduce cpu_supports_isa() taking CPUMIPSState argument
Introduce cpu_supports_isa() which takes a CPUMIPSState
argument, more useful at runtime when the CPU is created
(no need to call the extensive object_class_by_name()).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201207215257.4004222-3-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
ac70f9767c target/mips: Rename cpu_supports_FEAT() as cpu_type_supports_FEAT()
As cpu_supports_isa() / cpu_supports_cps_smp() take a 'cpu_type'
name argument, rename them cpu_type_supports_FEAT().

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201207215257.4004222-2-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
1ab3a0de2f target/mips: Explicit Release 6 MMU types
As of Release 6, MMU type 4 is assigned to "Dual Variable-Page-Size
and Fixed-Page-Size TLBs" and type 2 to "Block Address Translation.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201201132817.2863301-4-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
7d6f01a12b target/mips: Allow executing MSA instructions on Loongson-3A4000
The Loongson-3A4000 is a GS464V-based processor with MIPS MSA ASE:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg763059.html

Commit af868995e1 correctly set the 'MSA present' bit of Config3
register, but forgot to allow the MSA instructions decoding in
insn_flags, so executing them triggers a 'Reserved Instruction'.

Fix by adding the ASE_MSA mask to insn_flags.

Fixes: af868995e1 ("target/mips: Add Loongson-3 CPU definition")
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20201130102228.2395100-1-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
90c429ee76 target/mips: Also display exception names in user-mode
Currently MIPS exceptions are displayed as string in system-mode
emulation, but as number in user-mode.
Unify by extracting the current system-mode code as excp_name()
and use that in user-mode.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201119160536.1980329-1-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
5777c8a905 target/mips: Remove unused headers from cp0_helper.c
Remove unused headers and add missing "qemu/log.h" since
qemu_log() is called.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-5-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
55671f80cb target/mips: Do not include CP0 helpers in user-mode emulation
CP0 helpers are restricted to system-mode emulation.
Do not intent do build cp0_helper.c in user-mode (this
allows to simplify some #ifdef'ry).

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20201109090422.2445166-3-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
547b9b17f9 target/mips: Replace magic values by CP0PM_MASK or TARGET_PAGE_BITS_MIN
Replace magic values related to page size:

  12 -> TARGET_PAGE_BITS_MIN
  13 -> CP0PM_MASK

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <20201109090422.2445166-2-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
34cffe960e target/mips: Include "exec/memattrs.h" in 'internal.h'
mips_cpu_do_transaction_failed() requires MemTxAttrs
and MemTxResult declarations.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-8-f4bug@amsat.org>
2020-12-13 19:58:54 +01:00
Philippe Mathieu-Daudé
86deb70172 target/mips/kvm: Remove unused headers
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20201206233949.3783184-7-f4bug@amsat.org>
2020-12-13 19:52:22 +01:00
Dov Murik
6f8ddc2a89 target/i386: tracing: format length values as hex
Three trace events had a literal "0x" prefix but the 'len' values were
formatted in decimal base.  Keep the prefix and format the numbers as
hex, as is usually the case for length of memory regions.

Signed-off-by: Dov Murik <dovmurik@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20201103100745.160409-1-dovmurik@linux.vnet.ibm.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-13 17:02:42 +01:00
Philippe Mathieu-Daudé
11cb076b26 target/mips/kvm: Assert unreachable code is not used
This code must not be used outside of KVM. Abort if it is.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Huacai Chen <chenhc@lemote.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200429082916.10669-3-f4bug@amsat.org>
2020-12-13 16:00:58 +01:00
zhaolichang
ce00ff729e m68k: fix some comment spelling errors
I found that there are many spelling errors in the comments of qemu/target/m68k.
I used spellcheck to check the spelling errors and found some errors in the folder.

Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: David Edmondson <david.edmondson@oracle.com>
Reviewed-by: Philippe Mathieu-Daude<f4bug@amsat.org>
Reviewed-by: Laurent Vivier<laurent@vivier.eu>
Message-Id: <20201009064449.2336-9-zhaolichang@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-12-12 18:12:43 +01:00
Laurent Vivier
d21f73c61d target/m68k: Add vmstate definition for M68kCPU
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20201022203000.1922749-3-laurent@vivier.eu>
2020-12-12 18:12:39 +01:00
Laurent Vivier
4160d5e6bd target/m68k: remove useless qregs array
They are unused since the target has been converted to TCG.

Fixes: e1f3808e03 ("Convert m68k target to TCG.")
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201022203000.1922749-2-laurent@vivier.eu>
2020-12-12 18:12:35 +01:00
Peter Maydell
a4b307b0ea First set of 6.0 patches for s390x:
- acceptance test for device detection
 - bugfixes
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20201211' into staging

First set of 6.0 patches for s390x:
- acceptance test for device detection
- bugfixes

# gpg: Signature made Fri 11 Dec 2020 12:21:45 GMT
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [unknown]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [unknown]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [unknown]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20201211:
  s390x/cpu: Use timer_free() in the finalize function to avoid memleaks
  tests/acceptance: test s390x zpci fid propagation
  tests/acceptance: verify s390x device detection
  tests/acceptance: test virtio-ccw revision handling
  tests/acceptance: add a test for devices on s390x
  hw/watchdog/wdt_diag288: Remove unnecessary includes

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-12-11 22:22:50 +00:00