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We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.
Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [crisµblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Until very recently, the vmstate for ppc cpus included some poorly
thought out VMSTATE_EQUAL() components, that can easily break
migration compatibility, and did so between qemu-2.6 and later
versions. A hack was recently added which fixes this migration
breakage, but it leaves the unhelpful cruft of these fields in the
migration stream.
This patch adds a new cpu property allowing these fields to be removed
from the stream entirely. For the pseries-2.8 machine type - which
comes after the fix - and for all non-pseries machine types - which
aren't mature enough to care about cross-version migration - we remove
the fields from the stream.
For pseries-2.7 and earlier, The migration hack remains in place,
allowing backwards and forwards migration with the older machine
types.
This restricts the migration compatibility cruft to older machine
types, and at least opens the possibility of eventually deprecating
and removing it entirely.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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As cpu_exec_exit() mirrors the cpu_exec_realizefn(),
rename it as cpu_exec_unrealizefn().
Create and register a cpu_common_unrealizefn() function for
the CPU device class and call cpu_exec_unrealizefn() from
this function.
Remove cpu_exec_exit() from cpu_common_finalize()
(which mirrors init, not realize), and as x86_cpu_unrealizefn()
and ppc_cpu_unrealizefn() overwrite the device class unrealize function,
add a call to a parent_unrealize pointer.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Modify all CPUs to call it from XXX_cpu_realizefn() function.
Remove all the cannot_destroy_with_object_finalize_yet as
unsafe references have been moved to cpu_exec_realizefn().
(tested with QOM command provided by commit 4c315c27)
for arm:
Setting of cpu->mp_affinity is moved from arm_cpu_initfn()
to arm_cpu_realizefn() as setting of cpu_index is now done
in cpu_exec_realizefn(). To avoid to overwrite an user defined
value, we set it to an invalid value by default, and update
it in realize function only if the value is still invalid.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Those are unneeded now that CPUState nr_{cores,threads} is always
initialized.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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This is no longer necessary as the helpers will properly retrieve
the return address when needed. Also remove gen_update_current_nip()
which didn't seem to make much sense to me.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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ISA 3.0 has introduced EO - Expanded Opcode. Introduce third level
indirect opcode table and corresponding parsing routines.
EO (11:12) Expanded opcode field
Formats: XX1
EO (11:15) Expanded opcode field
Formats: VX, X, XX2
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
[dwg: Trivial checkpatch fixup]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This flag will be used for POWER9 instructions.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The patch adds CPU PVR definition for POWER9 and enables QEMU to launch
guests/linux-user in TCG mode.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[ Added POWER9 alias, POWER9 SPAPR core and dropped MMU defines ]
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
[dwg: Dropped sPAPR core type again for now]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We will need this function to look up the aliases in the
spapr-cpu-core code, too.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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According to the e500mc and e5500 core reference manual they have support
for the mftb instruction.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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It is not possible to set the compat property to an unknown value with
powerpc_set_compat(). Something must have gone terribly wrong in QEMU,
if we detect an "Internal error" in powerpc_get_compat(). Let's abort then.
This patch also drops the "max_compat ? *max_compat : -1" construct. It is
useless since max_compat is dereferenced a few lines above.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Tracked down with an ugly, brittle and probably buggy Perl script.
Also move includes converted to <...> up so they get included before
ours where that's obviously okay.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
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This adds proper support for translating real mode addresses based
on the combination of HV and LPCR bits. This handles HRMOR offset
for hypervisor real mode, and both RMA and VRMA modes for guest
real mode. PAPR mode adjusts the offsets appropriately to match the
RMA used in TCG, but we need to limit to the max supported by the
implementation (16G).
This includes some fixes by Cédric Le Goater <clg@kaod.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[dwg: Adjusted for differences in my version of the prereq patches]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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kvmppc_smt_threads() returns 1 if KVM is not enabled.
Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We were always advertising only 4K & 16M. Additionally the code wasn't
properly matching the page size with the PTE content, which meant we
could potentially hit an incorrect PTE if the guest used multiple sizes.
Finally, honor the CPU capabilities when decoding the size from the SLB
so we don't try to use 64K pages on 970.
This still doesn't add support for MPSS (Multiple Page Sizes per Segment)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors
commits 61a36c9b5a12 and 1114e712c998 reworked the hpte code
doing insertion/removal in hw/ppc/spapr_hcall.c. The hunks
modifying these areas were removed. ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Don't allow access in guest mode
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The current behaviour isn't completely right, as for the DEC, we
don't properly re-arm when wrapping around, but I will fix this
in a separate patch.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This handles filtering bits based on what is implemented by a
given architecture version. We also use it to copy to LPCR
some of the relevant 970 HID4 bits.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We don't give them a KVM reg number yet as no current KVM version
supports HV mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: SPRs AMOR,DAWR,DARWX were already included in commit f401dd32cb8e9]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This adds the ISA 2.06 and later power management instructions
(doze, nap, sleep and rvwinkle) and associated wakeup cause testing
in LPCR
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Those instructions are only available in hypervisor real mode and
allow cache inhibited garded access to devices in that mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We were initializing unused ones and missing some
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: fixed checkpatch.pl errors ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This allows us to set the appropriate LPCR bits which will be used
when fixing the exception model for the HV mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: previous commit 26a7f1291bb5 did not include the LPCR setting as
it was not needed at the time, adapted commit log ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The 75x and 74xx processors have some thermal monitoring SPRs that
some OSes such as MacOS do use. Our current "dumb" implementation
isn't good enough and will cause some versions of MacOS to hang during
boot.
This lifts an improved emulation from MacOnLinux and adapts it to
qemu, thus fixing the problem.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[dwg: Fixed typo in comment, a number of minor checkpatch warnings,
and a compile failure with CONFIG_USER_ONLY]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Make sure that guests can use the PowerISA 2.07 CPU sPAPR
compatibility mode when they request it and the target CPU
supports it.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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When using an olderr PowerISA level, all the upper compatibility
bits have to be enabled, too. For example when we want to run
something in PowerISA 2.05 compatibility mode on POWER8, the bit
for 2.06 has to be set beside the bit for 2.05.
Additionally, to make sure that we do not set bits that are not
supported by the host, we apply a mask with the known-to-be-good
bits here, too.
Signed-off-by: Thomas Huth <thuth@redhat.com>
[dwg: Added some #ifs to fix compile on 32-bit targets]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The current pcr_mask values are ambiguous: Should these be the mask
that defines valid bits in the PCR register? Or should these rather
indicate which compatibility levels are possible? Anyway, POWER6 and
POWER7 should certainly not use the same values here. So let's
introduce an additional variable "pcr_supported" here which is
used to indicate the valid compatibility levels, and use pcr_mask
to signal the valid bits in the PCR register.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The PPC_64BX instruction flag is used for a couple of newer
instructions currently on POWER8 but our implementation for
them works for POWER7 too (and already does the proper checking
of what is permitted) with one exception: stq needs to check
the ISA version.
This fixes the latter and add the instructions to POWER7
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We only had them on POWER8, add them to POWER7 as well
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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We use an env. flag which is set to the initial value of MSR_HVB in
the msr_mask. We also adjust the POWER8 mask to set SHV.
Also use this to adjust ctx.hv so that it is *set* when the processor
doesn't have an HV mode (970 with Apple mode for example), thus enabling
hypervisor instructions/SPRs.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: ctx.hv used to be defined only for the hypervisor kernel
(HV=1|PR=0). It is now defined also when PR=1 and conditions are
fixed accordingly.
stripped unwanted tabs.]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This will enable decoding of hrfid
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The KVM API restricts vcpu ids to be < KVM_CAP_MAX_VCPUS. On PowerPC
targets, depending on the number of threads per core in the host and
in the guest, some topologies do generate higher vcpu ids actually.
When this happens, QEMU bails out with the following error:
kvm_init_vcpu failed: Invalid argument
The KVM_CREATE_VCPU ioctl has several EINVAL return paths, so it is
not possible to fully disambiguate.
This patch adds a check in the code that computes vcpu ids, so that
we can detect the error earlier, and print a friendlier message instead
of calling KVM_CREATE_VCPU with an obviously bogus vcpu id.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This changes a cpu.h dependency for hw/ppc/ppc.h into a cpu-qom.h
dependency. For it to compile we also need to clean up a few unused
definitions.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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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>
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commit fce55481360d "ppc: A couple more dummy POWER8 Book4 regs"
squashed in to rapidly a set of POWER8 Book4 regs in the wrong
routine. This patch introduces the missing gen_spr_power8_book4()
routine to fix their location.
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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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>
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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>
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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>
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The masks weren't chosen nor applied properly. The architecture specifies
that writes to AMR are masked by UAMOR for PR=1, otherwise AMOR for HV=0.
The writes to UAMOR are masked by AMOR for HV=0
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: moved gen_spr_amr() prototype change to next patch ]
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>
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Make sure we give the guest full authorization
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>
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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>
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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>
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We don't give them a KVM reg number to most of the registers yet as no
current KVM version supports HV mode. For DAWR and DAWRX, the KVM reg
number is needed since this register can be set by the guest via the
H_SET_MODE hypercall.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: squashed in patch 'ppc: Add KVM numbers to some P8 SPRs'
changed the commit log with a proposal of Thomas Huth
removed all hunks except those related to AMOR and DAWR* ]
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>
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The current set of spr_register_* macros only take the user and
supervisor function pointers. To make the transition easy, we
don't change that but we add "_hv" variants that can be used to
register all 3 sets.
To simplify the transition, users of the "old" macro will set the
hypervisor callback to be the same as the supervisor one. The new
registration function only needs to be used for registers that are
either hypervisor only or behave differently in HV mode.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
[clg: fixed else if condition in gen_op_mfspr() ]
Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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When a qemu-system-ppc64 is started, the 64-bit mode bit
is not set in MSR.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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This adds a new POWER8+NVLink CPU PVR which core is identical to POWER8
but has a different PVR. The only available machine now has PVR
pvr 004c 0100 so this defines "POWER8NVL" alias as v1.0.
The corresponding kernel commit is
https://github.com/torvalds/linux/commit/ddee09c099c3
"powerpc: Add PVR for POWER8NVL processor"
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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The TAR special purpose register currently does not get migrated
under KVM because it does not get synchronized with the kernel.
Use spr_register_kvm() instead of spr_register() to fix this issue.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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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>
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