Commit Graph

399 Commits

Author SHA1 Message Date
Julio Guerra
3ede8f6996 taget-ppc: Fix read access to IBAT registers higher than IBAT3
Fix the index used to read the IBAT's vector which results in IBAT0..3 instead
of IBAT4..N.

The bug appeared by saving/restoring contexts including IBATs values.

Signed-off-by: Julio Guerra <julio@farjump.io>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-11-06 15:42:38 +03:00
Benjamin Herrenschmidt
90da0d5a70 ppc/spapr: Add "ibm,pa-features" property to the device-tree
LoPAPR defines a "ibm,pa-features" per-CPU device tree property which
describes extended features of the Processor Architecture.

This adds the property to the device tree. At the moment this is the
copy of what pHyp advertises except "I=1 (cache inhibited) Large Pages"
which is enabled for TCG and disabled when running under HV KVM host
with 4K system page size.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[aik: rebased, changed commit log, moved ci_large_pages initialization,
renamed pa_features arrays]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 12:22:40 +11:00
Benjamin Herrenschmidt
aa4bb58752 ppc: Add mmu_model defines for arch 2.03 and 2.07
This removes unused POWERPC_MMU_2_06a/POWERPC_MMU_2_06d.

This replaces POWERPC_MMU_64B with POWERPC_MMU_2_03 for POWER5+ to be
more explicit about the version of the PowerISA supported.

This defines POWERPC_MMU_2_07 and uses it for the POWER8 CPU family.
This will not have an immediate effect now but it will in the following
patch.

This should cause no behavioural change.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[aik: rebased, changed commit log]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-10-23 12:22:40 +11:00
Shraddha Barke
74c373e42f Target-ppc: Remove unnecessary variable
Compress lines and remove the variable ret.

Change made using Coccinelle script

@@
expression ret;
@@
- if (ret) return ret;
- return 0;
+ return ret;
@@
local idexpression ret;
expression e;
@@
- ret = e;
- return ret;
+ return e;
@@
type T; identifier i;
@@
- T i;
... when != i

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-09-11 10:21:38 +03:00
Peter Crosthwaite
4bad9e392e 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).

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09 15:20:40 +02:00
Bharata B Rao
6dd0f8342d target-ppc: Move cpu_exec_init() call to realize function
Move cpu_exec_init() call from instance_init to realize. This allows
any failures from cpu_exec_init() to be handled appropriately.
Also add corresponding cpu_exec_exit() call from unrealize.

cpu_dt_id assignment from instance_init is no longer needed since
correct assignment for cpu_dt_id is already present in realizefn.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
[AF: Keep calling cpu_exec_init() for CONFIG_USER_ONLY]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09 15:20:40 +02:00
Bharata B Rao
5a790cc4b9 cpu: Add Error argument to cpu_exec_init()
Add an Error argument to cpu_exec_init() to let users collect the
error. This is in preparation to change the CPU enumeration logic
in cpu_exec_init(). With the new enumeration logic, cpu_exec_init()
can fail if cpu_index values corresponding to max_cpus have already
been handed out.

Since all current callers of cpu_exec_init() are from instance_init,
use error_abort Error argument to abort in case of an error.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-07-09 15:20:40 +02:00
Cyril Bur
3ba55e399f PPC: Introduce the Virtual Time Base (VTB) SPR register
This patch adds basic support for the VTB.

PowerISA:
The Virtual Time Base (VTB) is a 64-bit incrementing counter.
Virtual Time Base increments at the same rate as the Time Base until its value
becomes 0xFFFF_FFFF_FFFF_FFFF (2 64 - 1); at the next increment its value
becomes 0x0000_0000_0000_0000. There is no interrupt or other indication when
this occurs.

The operation of the Virtual Time Base has the following additional
properties.
1. Loading a GPR from the Virtual Time Base has no effect on the accuracy of
the Virtual Time Base.
2. Copying the contents of a GPR to the Virtual Time Base replaces the
contents of the Virtual Time Base with the contents of the GPR.

Signed-off-by: Cyril Bur <cyril.bur@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 15:00:07 +01:00
Peter Maydell
97052d64e4 Patch queue for ppc - 2015-01-07
New year's release. This time's highlights:
 
   - E500: More RAM support
   - pseries: New SLOF release
   - Migration fixes
   - Simplify USB spawning logic, removes support for explicit usb=off
   - TCG: Simple untansactional TM emulation
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2015-01-07

New year's release. This time's highlights:

  - E500: More RAM support
  - pseries: New SLOF release
  - Migration fixes
  - Simplify USB spawning logic, removes support for explicit usb=off
  - TCG: Simple untansactional TM emulation

# gpg: Signature made Wed 07 Jan 2015 15:19:37 GMT using RSA key ID 03FEDC60
# gpg: Good signature from "Alexander Graf <agraf@suse.de>"
# gpg:                 aka "Alexander Graf <alex@csgraf.de>"

* remotes/agraf/tags/signed-ppc-for-upstream: (37 commits)
  hw/ppc/mac_newworld: simplify usb controller creation logic
  hw/ppc/spapr: simplify usb controller creation logic
  hw/ppc/mac_newworld: QOMified mac99 machines
  hw/usb: simplified usb_enabled
  hw/machine: added machine_usb wrapper
  hw/ppc: modified the condition for usb controllers to be created for some ppc machines
  target-ppc: Cast ssize_t to size_t before printing with %zx
  target-ppc: Mark SR() and gen_sync_exception() as !CONFIG_USER_ONLY
  PPC: e500: Fix GPIO controller interrupt number
  target-ppc: Introduce Privileged TM Noops
  target-ppc: Introduce tcheck
  target-ppc: Introduce TM Noops
  target-ppc: Introduce tbegin
  target-ppc: Introduce TEXASRU Bit Fields
  target-ppc: Power8 Supports Transactional Memory
  target-ppc: Introduce tm_enabled Bit to CPU State
  target-ppc: Introduce Feature Flag for Transactional Memory
  target-ppc: Introduce Instruction Type for Transactional Memory
  pseries: Update SLOF firmware image to 20141202
  PPC: Fix crash on spapr_tce_table_finalize()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-01-10 19:50:21 +00:00
Tom Musta
3e28c5e363 target-ppc: Power8 Supports Transactional Memory
The Power8 processor implements the Transactional Memory Facility
as defined in Power ISA 2.07.  Update the initialization code to
indicate this.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:27 +01:00
Paolo Bonzini
bd79255d25 translate: check cflags instead of use_icount global
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-03 09:22:10 +01:00
Paolo Bonzini
69b058c881 target-ppc: pass DisasContext to SPR generator functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-23 10:14:52 +01:00
Fabien Chouteau
3ade1a055c target-ppc: Fix breakpoint registers for e300
In the previous patch, the registers were added to init_proc_G2LE
instead of init_proc_e300.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-20 14:52:01 +01:00
Bharata B Rao
81f194dd69 target-ppc: Fix an invalid free in opcode table handling code.
Opcode table has direct, indirect and double indirect handlers, but
ppc_cpu_unrealizefn() frees direct handlers which are never allocated
and never frees double indirect handlers.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:12 +01:00
Bharata B Rao
54ff58bb10 target-ppc: Use macros in opcodes table handling code
Define and use macros instead of direct numbers wherever
possible in ppc opcodes table handling code.

This doesn't change any code functionality.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:12 +01:00
Pierre Mallard
b8c867ed09 target-ppc : Add new processor type 440x5wDFPU
This patch add a new processor type 440x5wDFPU for Virtex 5 PPC440
with an external APU FPU in double precision mode

Signed-off-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:12 +01:00
Pierre Mallard
4171853cf4 target-ppc : Allow fc[tf]id[*] mnemonics for non TARGET_PPC64
This patch remove limitation for fc[tf]id[*] on 32 bits targets and
add a new insn flag for signed integer 64 conversion PPC2_FP_CVT_S64

Signed-off-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:11 +01:00
Tom Musta
8412d11276 target-ppc: Implement IVOR[59] By Default for Book E
Adjust the IVOR mask for generic Book E implementation to support bit 59.
This is consistent with the Power ISA.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reported-by: Pierre Mallard <mallard.pierre@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:11 +01:00
Alexey Kardashevskiy
0b6ff57640 target-ppc: Fix kvmppc_set_compat to use negotiated cpu-version
By mistake, QEMU uses the maximum compatibility level from the command
line instead of the value negotiated in client-architecture-support call.

This replaces @max_compat with @cpu_version. This only affects guests
which do not support the host CPU.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-11-04 23:26:10 +01:00
Gonglei
18b91a3e08 qdev: Drop legacy_name from qdev properties
The legacy_name is useless now, better help
information is provided by description field of property.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15 05:03:15 +02:00
Gonglei
51b2e8c331 qdev: Add description field in PropertyInfo struct
The descriptions can serve as documentation in the code,
and they can be used to provide better help.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-10-15 05:03:15 +02:00
Richard Henderson
458dd76656 target-ppc: Use cpu_exec_interrupt qom hook
Cc: qemu-ppc@nongnu.org
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-id: 1410626734-3804-22-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-25 18:54:22 +01:00
Richard Henderson
774f0abeae target-ppc: Use cpu_exec_enter qom hook
Cc: qemu-ppc@nongnu.org
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 1410626734-3804-6-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-25 18:54:21 +01:00
Alexey Kardashevskiy
063cac5326 target-ppc: Fix number of threads per core limit
The number of threads per core is different for POWER6/7/8 CPUs.
Guest systems do not expect to see more threads per core than
a specific CPU supports so we need to limit this number.
This limit is implemented by ppc_get_compat_smt_threads().

However it has a problem as it checks for PCR (Processor Compatibility
Register) mask, 2.05 means 2 threads per core, 2.06 - 4 threads.
For POWER8 one would expect PCR_COMPAT_2_07 bit set and
ppc_get_compat_smt_threads() checking for it to return 8 threads
per core. But the latest PowerISA spec now is 2.07 and there is
no 2.07 compatibility mode defined, QEMU does not define it either
(will be in PowerISA 2.08).

Instead of relying on a PCR mask, this uses kvmppc_smt_threads()
which returns the maximum supported threads number for KVM or
1 for TCG.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-15 16:11:58 +02:00
Alexey Kardashevskiy
b60c60070c target-ppc: Remove POWER7+ and POWER8E families
POWER8E is architecturally equal to POWER8 and POWER7+ is equal to
POWER7. Also no user space tool makes any difference for CPU node name
in the device tree (such as PowerPC,POWER7@0 vs. PowerPC,POWER7+@0).
So there is no point in emulating POWER7+ and POWER8E apart from POWER7
and POWER8. Also, the previos patch implemented multiple PVR mask support
per CPU class so POWER7 class now covers both POWER7 and POWER7+ CPUs,
same is valid for POWER8/8E.

This removes POWER7+ and POWER8E classes. This replaces references
to POWER7P/POWER8E families with POWER7/POWER8 families.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-08 12:10:36 +02:00
Alexey Kardashevskiy
03ae4133ab target-ppc: Add pvr_match() callback
So far it was enough to have a base PVR value and mask per CPU
family such as POWER7 or POWER8. However there CPUs which are
completely architecturally compatible but have different PVRs such
as POWER7/POWER7+ and POWER8/POWER8E. For these CPUs, top 16 bits
are CPU family and low 16 bits are the version. The families have
PVR base values different enough so defining a mask which
would cover both (or potentially more) CPUs within the family is
not possible.

This adds a pvr_match() callback to PowerPCCPUClass. The default
handler simply compares PVR defined in the class.

This implements ppc_pvr_match_power7/ppc_pvr_match_power8 callbacks
for POWER7/8 families. These check for POWER7/POWER7+ and POWER8/POWER8E.

This changes ppc_cpu_compare_class_pvr_mask() not to check masks but
use the pvr_match() callback.

Since all server CPUs use the same mask, this defines one mask
value - CPU_POWERPC_POWER_SERVER_MASK - which is used everywhere now.
This removes other mask definitions.

This removes pvr_mask from PowerPCCPUClass as it is not used anymore.
This removes pvr initialization for POWER7/8 families as it is not used
to find the class, the pvr_match() callback is used instead.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-08 12:10:36 +02:00
Richard Henderson
a74029f6cb target-ppc: Change default cpu for ppc64le-linux-user
The default, 970fx, doesn't support MSR_LE.  So even though we set LE in
ppc_cpu_reset, it gets cleared again in hreg_store_msr.  Error out if a
user-selected cpu model doesn't support LE.

Signed-off-by: Richard Henderson <rth@twiddle.net>
[agraf: switch to POWER7 as default for BE and LE]
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-07-08 12:10:36 +02:00
Greg Kurz
7826c2b2a4 target-ppc: enable virtio endian ambivalent support
The device endianness is the cpu endianness at device reset time.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-29 19:39:43 +03:00
Alexey Kardashevskiy
f6c3ebcc3b target-ppc: Add support for POWER8 pvr 0x4D0000
At the moment QEMU knows about one version of POWER8 CPU with
PVR 0x4B.0000. This CPU class is defined as "POWER8". The linux
kernel names it as "POWER8E" which is different from the name QEMU uses.

Now we get another version of POWER8 which is architecturally equivalent
to POWER8E but has different PVR 0x4D.0000 so QEMU fails to find
a PPC CPU class on these machines. The linux kernel names these CPUs as
"POWER8".

This renames the existing "POWER8" to "POWER8E" to be more precise and
stay in sync with the linux kernel.

This adds a new "POWER8" family which calls POWER8E class init function
and defines own PVR mask (used to match a CPU class) and desc (used to
create dynamic version-less CPU class).

This does not change CPU class fw_name attribute as the host POWER8
firmware keeps using "PowerPC,POWER8" on both POWER8 and POWER8E.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:24 +02:00
Alexander Graf
b3cad3abf6 PPC: Add support for Apple gdb in gdbstub
The Apple gdbstub protocol is different from the normal gdbstub protocol
used on PowerPC. Add support for the different variant, so that we can use
Apple's gdb to debug guest code.

Keep in mind that the switch is a compile time option. We can't detect
during runtime whether a gdb connecting to us is an upstream gdb or an
Apple gdb.

Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Alexey Kardashevskiy
cd9adfdd77 target-ppc: Enable DABRX SPR and limit it to <=POWER7
This adds DABRX SPR.

As DABR(X) are present in POWER CPUs till POWER7 only and POWER8 does not
have them (as it implements more powerful facility instead), this limits
DABR/DABRX registration by POWER7 (inclusive).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:45 +02:00
Alexey Kardashevskiy
7303f83db6 target-ppc: Enable PPR and VRSAVE SPRs migration
This hooks SPR with their "KVM set_one_reg" counterparts which enables
their migration.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:45 +02:00
Alexey Kardashevskiy
4ee4a03b38 target-ppc: Add POWER8's Event Based Branch (EBB) control SPRs
POWER8 supports Event-Based Branch Facility (EBB). It is controlled via
set of SPRs access to which should generate an "Facility Unavailable"
interrupt if the facilities are not enabled in FSCR for problem state.

This adds EBB SPRs.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:45 +02:00
Alexey Kardashevskiy
cdcdda27fc target-ppc: Add POWER8's TM SPRs
This adds TM (Transactional Memory) SPRs.

This adds generic spr_read_prev_upper32()/spr_write_prev_upper32() to
handle upper half SPRs such as TEXASRU which is upper half of TEXASR.
Since this is not the only register like that and their numbers go
consequently, it makes sense to generalize the helpers.

This adds a gen_msr_facility_check() helper which purpose is to generate
the Facility Unavailable exception if the facility is disabled.
It is a copy of gen_fscr_facility_check() but it checks for enabled
facility in MSR rather than FSCR/HFSCR. It still sets the interrupt cause
in FSCR/HFSCR (whichever is passed to the helper).

This adds spr_read_tm/spr_write_tm/spr_read_tm_upper32/spr_write_tm_upper32
which are used for TM SPRs.

This adds TM-relates MSR bits definitions. This enables TM in POWER8 CPU class'
msr_mask.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:45 +02:00
Alexey Kardashevskiy
70c5340744 target-ppc: Add POWER8's MMCR2/MMCRS SPRs
This adds POWER8 specific PMU MMCR2/MMCRS SPRs.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
45ed0be146 target-ppc: Enable FSCR facility check for TAR
This makes user-privileged read/write fail if TAR facility is not enabled
in FSCR.

Since this is the very first check for enabled in FSCR facility,
this also adds gen_fscr_facility_check() for using in spr_write_tar()/
spr_read_tar().

This enables TAR in FSCR for user mode unconditionally.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
7019cb3d88 target-ppc: Add POWER8's FSCR SPR
This adds an FSCR (Facility Status and Control Register) SPR. This defines
names for FSCR bits.

This defines new exception type - POWERPC_EXCP_FU - "facility unavailable" (FU).
This registers an interrupt vector for it at 0xF60 as PowerISA defines.

This adds a TCG helper_fscr_facility_check() helper to raise an exception
if the facility is not enabled. It updates the interrupt cause field
in FSCR. This adds a TCG translation block generation code. The helper
may be used for HFSCR too as it has the same format.

The helper raising FU exceptions is not used by this patch but will be
in the next ones.

This adds gen_update_current_nip() to update NIP in DisasContext.
This helper is not used now and will be called before checking for
a condition for throwing an FU exception.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
d1a721ab81 target-ppc: Add POWER8's TIR SPR
This adds TIR (Thread Identification Register) SPR first defined for server
CPUs in PowerISA 2.07.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
a242881405 target-ppc: Refactor class init for POWER7/8
This extends init_proc_book3s_64 to support POWER7 and POWER8.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
5881c296b9 target-ppc: Switch POWER7/8 classes to use correct PMU SPRs
This replaces gen_spr_7xx() call (which registers 32bit SPRs) with
gen_spr_book3s_pmu() call.

This removes SPR_7XX_PMC5/6 as they are for 32bit and gen_spr_book3s_pmu()
already registers correct PMC5/6 SPRs.

This removes explicit MMCRA registration as gen_spr_book3s_pmu() does it
anyway.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
7fc2db18ce target-ppc: Make use of gen_spr_power5p_lpar() for POWER7/8
This makes use of generic gen_spr_power5p_lpar() which registers LPCR SPR.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
6a1eed3f49 target-ppc: Make use of gen_spr_book3s_altivec() for POWER7/8
This replaces VRSAVE registration and vscr_init() call with
gen_spr_book3s_altivec() which is generic and does the same thing if
insns_flags has PPC_ALTIVEC bit set (which POWER7/8 have set).

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:44 +02:00
Alexey Kardashevskiy
5db7d4faa3 target-ppc: Move POWER7/8 CFAR/DSCR/CTRL/PPR/PCR SPR registration to helpers
This moves SCFAR/DSCR/CTRL/PPR/PCR PRs to helpers. Later these helpers
will be called from generalized init_proc_book3s_64().

This switches init_proc_POWER7() to use generalized gen_spr_book3s_common()
which registers CRTL SPR under slightly different names. No change in
behaviour or non-debug output is expected.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
768167abb9 target-ppc: Move POWER8 TCE Address control (TAR) to a helper
This moves TAR SPR to a helper. Later this helper will be
called from generalized init_proc_book3s_64().

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
e61716aa9a target-ppc: Move POWER7/8 PIR/PURR/SPURR SPR registration to helpers
This moves PIR/PURR/SPURR SPRs to helpers. Later these helpers will be
called from generalized init_proc_book3s_64().

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
83cc6f8c2f target-ppc: Enable PMU SPRs migration
This enabled PMU SPRs migration by hooking hypv privileged versions with
"KVM one reg" IDs.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
90618f4f4d target-ppc: Remove check_pow_970FX
After merging 970s into one class, check_pow_970() is used for all of them.
Since POWER5+ is no different in the matter of supported power modes,
let's use the same check_pow() callback for POWER5+ too,

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
7488d481ce target-ppc: Introduce and reuse generalized init_proc_book3s_64()
At the moment every POWER CPU family has its own init_proc_POWERX function.
E500 already has common init function so we try to do the same thing.

This introduces BOOK3S_CPU_TYPE enum with 2 values - 970 and POWER5+.

This introduces generalized init_proc_book3s_64() which accepts a CPU type
as a parameter.

This uses new init function for 970 and POWER5+ CPU classes.

970 and POWER5+ use the same CPU class initialization except 3 things:
1. logical partitioning is controlled by LPCR (POWER5+) and HID4 (970)
SPRs;
2. 970 does not have EAR (External Access Register) SPR and PowerISA 2.03
defines one so keep it only for POWER5+;
3. POWER5+ does not have ALTIVEC so insns_flags does not have PPC_ALTIVEC
flag set and gen_spr_book3s_altivec() won't init ALTIVEC for POWER5+.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
ba88100219 target-ppc: Add HID4 SPR for PPC970
Previously LPCR was registered for the 970 class which was wrong as
it does not have LPCR. Instead, HID4 is used which this patch registers.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00
Alexey Kardashevskiy
c36c97f880 target-ppc: Add PMC7/8 to 970 class
Compared to PowerISA-compliant CPUs, 970 family has most of them plus
PMC7/8 which are only present on 970 but not on POWER5 and later CPUs.

Since we are changing SPRs for Book3s/970 families, let's add them too.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-16 13:24:43 +02:00