Commit Graph

368 Commits

Author SHA1 Message Date
Paolo Bonzini 63c915526d cpu: move exec-all.h inclusion out of cpu.h
exec-all.h contains TCG-specific definitions.  It is not needed outside
TCG-specific files such as translate.c, exec.c or *helper.c.

One generic function had snuck into include/exec/exec-all.h; move it to
include/qom/cpu.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19 16:42:29 +02:00
Paolo Bonzini 2d34fe392c target-ppc: make cpu-qom.h not target specific
Make PowerPCCPU an opaque type within cpu-qom.h, and move all definitions
of private methods, as well as all type definitions that require knowledge
of the layout to cpu.h.  Conversely, move all definitions needed to define
a class to cpu-qom.h.  This helps making files independent of NEED_CPU_H
if they only need to pass around CPU pointers.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-05-19 16:41:33 +02:00
Emilio G. Cota 89fee74a0f tb: consistently use uint32_t for tb->flags
We are inconsistent with the type of tb->flags: usage varies loosely
between int and uint64_t. Settle to uint32_t everywhere, which is
superior to both: at least one target (aarch64) uses the most significant
bit in the u32, and uint64_t is wasteful.

Compile-tested for all targets.

Suggested-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Suggested-by: Richard Henderson <rth@twiddle.net>
Tested-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-Id: <1460049562-23517-1-git-send-email-cota@braap.org>
2016-05-12 14:06:40 -10:00
Thomas Huth afbee7128c ppc: Fix the range check in the LSWI instruction
There are two issues: First, the number of registers that are used has
to be calculated with "(nb + 3) / 4" (i.e. round always up, not down).
Second, the "start <= ra && (start + nr - 32) > ra" condition for the
wrap-around case is wrong: It has to be tested with "||" instead of "&&".
Since we can reuse this check later for the LSWX instruction, let's
place the fixed code into a helper function, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-04-18 15:14:38 +10:00
Cédric Le Goater 5c94b2a5e5 ppc: Rework POWER7 & POWER8 exception model
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

This patch fixes the current AIL implementation for POWER8. The
interrupt vector address can be calculated directly from LPCR when the
exception is handled. The excp_prefix update becomes useless and we
can cleanup the H_SET_MODE hcall.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: Removed LPES0/1 handling for HV vs. !HV
      Fixed LPCR_ILE case for POWERPC_EXCP_POWER8 ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
[dwg: This was written as a cleanup, but it also fixes a real bug
      where setting an alternative interrupt location would not be
      correctly migrated]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-04-05 10:38:24 +10:00
Benjamin Herrenschmidt 9c1cf38d28 ppc: A couple more dummy POWER8 Book4 regs
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: squashed in patch 'ppc: Add dummy ACOP SPR' ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:34 +11:00
Benjamin Herrenschmidt eb5ceb4d38 ppc: Add dummy CIABR SPR
We should implement HW breakpoint/watchpoint, qemu supports them...

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:34 +11:00
Benjamin Herrenschmidt a6eabb9e59 ppc: Add POWER8 IAMR register
With appropriate AMR-like masks. Not actually used by the translation
logic at that point

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: changed spr_register_hv(SPR_IAMR) to spr_register_kvm_hv(SPR_IAMR)
      changed gen_spr_amr() prototype ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:34 +11:00
Benjamin Herrenschmidt 21a558bed9 ppc: Add dummy SPR_IC for POWER8
It's supposed to be an instruction counter. For now make us not
crash when accessing it.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:34 +11:00
Benjamin Herrenschmidt 26a7f1291b ppc: Create cpu_ppc_set_papr() helper
And move the code adjusting the MSR mask and calling kvmppc_set_papr()
to it. This allows us to add a few more things such as disabling setting
of MSR:HV and appropriate LPCR bits which will be used when fixing
the exception model.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: removed LPCR setting ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:34 +11:00
Benjamin Herrenschmidt 1488270e82 ppc: Update SPR definitions
Add definitions for additional SPR numbers and SPR bit definitions
that will be relevant for subsequent improvements to POWER8 emulation

Also fix the definition of LPIDR which was incorrect (and is different
for server and embedded).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-24 11:17:33 +11:00
Benjamin Herrenschmidt 14646457ae ppc: Add a few more P8 PMU SPRs
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-16 09:55:05 +11:00
Thomas Huth d6f1445faf ppc: Define the PSPB register on POWER8
POWER8 / PowerISA 2.07 has a new special purpose register called PSPB
("Problem State Priority Boost Register"). The contents of this register
are currently lost during migration. To be able to migrate this register,
too, we've got to define this SPR along with the other SPRs of POWER8.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-03-16 09:55:05 +11:00
Peter Maydell 30456d5ba3 all: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
2016-02-23 12:43:05 +00:00
James Clarke d1277156b5 target-ppc: mcrfs should always update FEX/VX and only clear exception bits
Here is the description of the mcrfs instruction from the PowerPC Architecture
Book, Version 2.02, Book I: PowerPC User Instruction Set Architecture
(http://www.ibm.com/developerworks/systems/library/es-archguide-v2.html), found
on page 120:

    The contents of FPSCR field BFA are copied to Condition Register field BF.
    All exception bits copied are set to 0 in the FPSCR. If the FX bit is
    copied, it is set to 0 in the FPSCR.

    Special Registers Altered:
        CR field BF
        FX OX                        (if BFA=0)
        UX ZX XX VXSNAN              (if BFA=1)
        VXISI VXIDI VXZDZ VXIMZ      (if BFA=2)
        VXVC                         (if BFA=3)
        VXSOFT VXSQRT VXCVI          (if BFA=5)

However, currently every bit in FPSCR field BFA is set to 0, including ones not
on that list.

This can be seen in the following simple C program:

    #include <fenv.h>
    #include <stdio.h>

    int main(int argc, char **argv) {
        int ret;
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        ret = fesetround(FE_UPWARD);
        printf("Setting to FE_UPWARD (%d): %d\n", FE_UPWARD, ret);
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        ret = fegetround();
        printf("Current rounding: %d\n", ret);
        return 0;
    }

which gave the output (before this commit):

    Current rounding: 0
    Setting to FE_UPWARD (2): 0
    Current rounding: 2
    Current rounding: 0

instead of (after this commit):

    Current rounding: 0
    Setting to FE_UPWARD (2): 0
    Current rounding: 2
    Current rounding: 2

The relevant disassembly is in fegetround(), which, on my system, is:

    __GI___fegetround:
    <+0>:   mcrfs  cr7, cr7
    <+4>:   mfcr   r3
    <+8>:   clrldi r3, r3, 62
    <+12>:  blr

What happens is that, the first time fegetround() is called, FPSCR field 7 is
retrieved. However, because of the bug in mcrfs, the entirety of field 7 is set
to 0, which includes the rounding mode.

There are other issues this will fix, such as condition flags not persisting
when they should if read, and if you were to read a specific field with some
exception bits set, but no others were set in the entire register, then the
bits would be cleared correctly, but FEX/VX would not be updated to 0 as they
should be.

Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-02-01 13:27:01 +11:00
James Clarke fc03cfef8b target-ppc: Make every FPSCR_ macro have a corresponding FP_ macro
Signed-off-by: James Clarke <jrtc27@jrtc27.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-01-30 23:49:27 +11:00
David Gibson cd6a9bb6e9 target-ppc: Rework SLB page size lookup
Currently, the ppc_hash64_page_shift() function looks up a page size based
on information in an SLB entry.  It open codes the bit translation for
existing CPUs, however different CPU models can have different SLB
encodings.  We already store those in the 'sps' table in CPUPPCState, but
we don't currently enforce that that actually matches the logic in
ppc_hash64_page_shift.

This patch reworks lookup of page size from SLB in several ways:
  * ppc_store_slb() will now fail (triggering an illegal instruction
    exception) if given a bad SLB page size encoding
  * On success ppc_store_slb() stores a pointer to the relevant entry in
    the page size table in the SLB entry.  This is looked up directly from
    the published table of page size encodings, so can't get out ot sync.
  * ppc_hash64_htab_lookup() and others now use this precached page size
    information rather than decoding the SLB values
  * Now that callers have easy access to the page_shift,
    ppc_hash64_pte_raddr() amounts to just a deposit64(), so remove it and
    have the callers use deposit64() directly.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Alexander Graf <agraf@suse.de>
2016-01-30 23:37:38 +11:00
Greg Kurz 376dbce0e3 target-ppc: rename and export maybe_bswap_register()
This helper will be used to support FP, Altivec and VSX registers when
the guest is little-endian.

Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-01-30 23:37:37 +11:00
David Gibson f9ab1e87ed ppc: Clean up error handling in ppc_set_compat()
Current ppc_set_compat() returns -1 for errors, and also (unconditionally)
reports an error message.  The caller in h_client_architecture_support()
may then report it again using an outdated fprintf().

Clean this up by using the modern error reporting mechanisms.  Also add
strerror(errno) to the error message.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2016-01-30 23:37:37 +11:00
Madhavan Srinivasan dbdc13a1ac target-ppc: Move the FPSCR bit update macros to cpu.h
Move the FPSCR bit update macros defined in dfp_helper
to cpu.h. This way, fpu_helper functions can also use them

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-30 19:39:01 +11:00
Bharata B Rao ba3ecda05e ppc: Add/Re-introduce MMU model definitions needed by PR KVM
Commit aa4bb58752 (ppc: Add mmu_model defines for arch 2.03 and 2.07)
removed the mmu_model definition POWERPC_MMU_2_06a which is needed by
PR KVM. Reintroduce it and also add POWERPC_MMU_2_07a.

This fixes QEMU crash (qemu: fatal: Unknown MMU model) during booting
of PR KVM guest.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-11 11:05:30 +11:00
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
Richard Henderson dc03246cc3 target-*: Drop cpu_gen_code define
This symbol no longer exists.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:50 +11:00
Peter Crosthwaite 4ecd4d16a0 ppc: Rename ELF_MACHINE to be PPC specific
Rename ELF_MACHINE to be PPC specific. This is used as-is by the
various PPC bootloaders and is locally defined to ELF_MACHINE in linux
user in PPC specific ifdeffery.

This removes another architecture specific definition from the global
namespace (as desired by multi-arch).

Cc: Alexander Graf <agraf@suse.de>
Cc: qemu-ppc@nongnu.org
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-By: Riku Voipio <riku.voipio@linaro.org>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-09-25 12:04:44 +02:00
Benjamin Herrenschmidt 97ed5ccdee tlb: Add "ifetch" argument to cpu_mmu_index()
This is set to true when the index is for an instruction fetch
translation.

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

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

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

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Message-Id: <1439796853-4410-2-git-send-email-benh@kernel.crashing.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-09-11 08:15:28 -07:00
Peter Crosthwaite ea3e984740 cpu-exec: Purge all uses of ENV_GET_CPU()
Remove un-needed usages of ENV_GET_CPU() by converting the APIs to use
CPUState pointers and retrieving the env_ptr as minimally needed.

Scripted conversion for target-* change:

for I in target-*/cpu.h; do
    sed -i \
    's/\(^int cpu_[^_]*_exec(\)[^ ][^ ]* \*s);$/\1CPUState *cpu);/' \
    $I;
done

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
Stefan Hajnoczi 786a4ea82e Convert (ffs(val) - 1) to ctz32(val)
This commit was generated mechanically by coccinelle from the following
semantic patch:

@@
expression val;
@@
- (ffs(val) - 1)
+ ctz32(val)

The call sites have been audited to ensure the ffs(0) - 1 == -1 case
never occurs (due to input validation, asserts, etc).  Therefore we
don't need to worry about the fact that ctz32(0) == 32.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-5-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-04-28 15:36:08 +02:00
Eduardo Habkost 2994fd96d9 cpu: Make cpu_init() return QOM CPUState object
Instead of making cpu_init() return CPUArchState, return CPUState.

Changes were made using the Coccinelle semantic patch below.

  @@
  typedef CPUState;
  identifier e;
  expression args;
  type CPUArchState;
  @@
  -   e =
  +   cpu =
          cpu_init(args);
  -   if (!e) {
  +   if (!cpu) {
          ...
      }
  -   cpu = ENV_GET_CPU(env);
  +   e = cpu->env_ptr;

  @@
  identifier new_env, new_cpu, env, cpu;
  type CPUArchState;
  expression args;
  @@
  -{
  -   CPUState *cpu = ENV_GET_CPU(env);
  -   CPUArchState *new_env = cpu_init(args);
  -   CPUState *new_cpu = ENV_GET_CPU(new_env);
  +{
  +   CPUState *cpu = ENV_GET_CPU(env);
  +   CPUState *new_cpu = cpu_init(args);
  +   CPUArchState *new_env = new_cpu->env_ptr;
      ...
  }

  @@
  identifier c, cpu_init_func, cpu_model;
  type StateType, CPUType;
  @@
  -static inline StateType* cpu_init(const char *cpu_model)
  -{
  -   CPUType *c = cpu_init_func(cpu_model);
  (
  -   if (c == NULL) {
  -       return NULL;
  -   }
  -   return &c->env;
  |
  -   if (c) {
  -       return &c->env;
  -   }
  -   return NULL;
  )
  -}
  +#define cpu_init(cpu_model) CPU(cpu_init_func(cpu_model))

  @@
  identifier cpu_init_func;
  identifier model;
  @@
  -#define cpu_init(model) (&cpu_init_func(model)->env)
  +#define cpu_init(model) CPU(cpu_init_func(model))

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Aurelien Jarno <aurelien@aurel32.net>
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: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
[AF: Fixed up cpu_copy() manually]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-03-10 17:33:51 +01:00
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
Aneesh Kumar K.V ad3e67d05a target-ppc: Use right page size with hash table lookup
We look at two sizes specified in ISA (4K, 64K). If not found matching,
we consider it 16MB.

Without this patch we would fail to lookup address above 16MB range.
Below 16MB happened to work before because the kernel have a liner
mapping and we always looked up hash for 0xc000000000000000. The
actual real address was computed by using the 16MB offset
with the real address found with the above hash.

Without Fix:
(gdb) x/16x 0xc000000001000000
0xc000000001000000 <list_entries+453208>:       Cannot access memory at address 0xc000000001000000
(gdb)

With Fix:
(gdb)  x/16x 0xc000000001000000
0xc000000001000000 <list_entries+453208>:       0x00000000      0x00000000      0x00000000      0x00000000
0xc000000001000010 <list_entries+453224>:       0x00000000      0x00000000      0x00000000      0x00000000
0xc000000001000020 <list_entries+453240>:       0x00000000      0x00000000      0x00000000      0x00000000
0xc000000001000030 <list_entries+453256>:       0x00000000      0x00000000      0x00000000      0x00000000

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-09 14:59:53 +01:00
Peter Maydell ec53b45bcd exec.c: Drop TARGET_HAS_ICE define and checks
The TARGET_HAS_ICE #define is intended to indicate whether a target-*
guest CPU implementation supports the breakpoint handling. However,
all our guest CPUs have that support (the only two which do not
define TARGET_HAS_ICE are unicore32 and openrisc, and in both those
cases the bp support is present and the lack of the #define is just
a bug). So remove the #define entirely: all new guest CPU support
should include breakpoint handling as part of the basic implementation.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-id: 1420484960-32365-1-git-send-email-peter.maydell@linaro.org
2015-01-20 15:19:32 +00:00
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 aac862379c target-ppc: Introduce TEXASRU Bit Fields
Define mnemonics for the various bit fields in the Transaction
EXception And Summary Register (TEXASR).
Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:27 +01:00
Tom Musta e43668a7d2 target-ppc: Introduce Feature Flag for Transactional Memory
Add a flag (POWERPC_FLAG_TM) for the Transactional Memory
Facility introduced in Power ISA 2.07.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-01-07 16:16:27 +01:00
Tom Musta f90468b646 target-ppc: Introduce Instruction Type for Transactional Memory
Add a category (PPC2_TM) for the Transactional Memory instructions
introduced in Power ISA 2.07.

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 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
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 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
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
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
Tom Musta b2f1355020 target-ppc: Add DFP to Emulated Instructions Flag
Decimal Floating Point is emulated, so add it the mask.  This will
fix the erroneous message:

  Warning: Disabling some instructions which are not emulated by TCG (0x0, 0x4)

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2014-06-27 13:48:22 +02:00
Alexey Kardashevskiy d5ac4f5433 spapr_hcall: Add address-translation-mode-on-interrupt resource in H_SET_MODE
This adds handling of the RESOURCE_ADDR_TRANS_MODE resource from
the H_SET_MODE, for POWER8 (PowerISA 2.07) only.

This defines AIL flags for LPCR special register.

This changes @excp_prefix according to the mode, takes effect in TCG.

This turns support of a new capability PPC2_ISA207S flag for TCG.

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 80b3f79b99 KVM: target-ppc: Enable TM state migration
This adds migration support for registers saved before Transactional
Memory (TM) transaction started.

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 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 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