exec: Make lduw_*_phys input an AddressSpace

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

exec: Make ldq/ldub_*_phys input an AddressSpace

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

exec: Make ldl_*_phys input an AddressSpace

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>

spapr-rtas: fix h_rtas parameters reading

On the real hardware, RTAS is called in real mode and therefore
top 4 bits of the address passed in the call are ignored.
So does the patch.

This converts

spapr-rtas: fix h_rtas parameters reading

On the real hardware, RTAS is called in real mode and therefore
top 4 bits of the address passed in the call are ignored.
So does the patch.

This converts h_rtas() to use existing rtas_ld() handlers.

This fixed rtas_ld()/rtas_st() to ignore top 4 bits.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>

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cpu: Use QTAILQ for CPU list

Introduce CPU_FOREACH(), CPU_FOREACH_SAFE() and CPU_NEXT() shorthand
macros.

Signed-off-by: Andreas Färber <afaerber@suse.de>

pseries: Add H_SET_MODE hcall to change guest exception endianness

H_SET_MODE is used for controlling various partition settings. One
of these settings is the endianness a guest takes its exceptions

pseries: Add H_SET_MODE hcall to change guest exception endianness

H_SET_MODE is used for controlling various partition settings. One
of these settings is the endianness a guest takes its exceptions in.

Signed-off-by: Anton Blanchard <anton@samba.org>
[agraf: fix whitespace]
Signed-off-by: Alexander Graf <agraf@suse.de>

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pseries: savevm support for pseries machine

This adds the necessary pieces to implement savevm / migration for the
pseries machine. The most complex part here is migrating the hash
table - for the

pseries: savevm support for pseries machine

This adds the necessary pieces to implement savevm / migration for the
pseries machine. The most complex part here is migrating the hash
table - for the paravirtualized pseries machine the guest's hash page
table is not stored within guest memory, but externally and the guest
accesses it via hypercalls.

This patch uses a hypervisor reserved bit of the HPTE as a dirty bit
(tracking changes to the HPTE itself, not the page it references).
This is used to implement a live migration style incremental save and
restore of the hash table contents.

Normally a hash table is 16MB but it can get bigger depending on how
much RAM the guest has. Due to its nature, updates to it are random so
the live migration style is used for it.

In addition it adds VMStateDescription information to save and restore
the (few) remaining pieces of state information needed by the pseries
machine.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374175984-8930-9-git-send-email-aliguori@us.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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spapr: Use named enum for function remove_hpte

The function returned a target_ulong which was made from unnamed enum
values. The target_ulong was then assigned to an int variable which
was used in a

spapr: Use named enum for function remove_hpte

The function returned a target_ulong which was made from unnamed enum
values. The target_ulong was then assigned to an int variable which
was used in a switch statement.

Using a named enum in both cases makes reviews easier.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

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spapr: Fix compiler warnings for some versions of gcc

i686-w64-mingw32-gcc (GCC) 4.6.3 from Debian wheezy reports these warnings:

hw/ppc/spapr_hcall.c:188:1: warning:
control reaches end of non-vo

spapr: Fix compiler warnings for some versions of gcc

i686-w64-mingw32-gcc (GCC) 4.6.3 from Debian wheezy reports these warnings:

hw/ppc/spapr_hcall.c:188:1: warning:
control reaches end of non-void function [-Wreturn-type]

hw/ppc/spapr_pci.c:454:1: warning:
control reaches end of non-void function [-Wreturn-type]

Both warnings are fixed by using g_assert_not_reached instead of assert.
A second line with assert(0) in spapr_pci.c which did not raise a compiler
warning was modified, too, because g_assert_not_reached documents the
purpose of that statement and is not removed in release builds.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

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spapr-rtas: add CPU argument to RTAS calls

RTAS is a hypervisor provided binary blob that a guest loads and
calls into to execute certain functions. It's similar to the
vsyscall page in Linux or th

spapr-rtas: add CPU argument to RTAS calls

RTAS is a hypervisor provided binary blob that a guest loads and
calls into to execute certain functions. It's similar to the
vsyscall page in Linux or the short lived VMCI paravirt interface
from VMware.

The QEMU implementation of the RTAS blob is simply a passthrough
that proxies all RTAS calls to the hypervisor via an hypercall.

While we pass a CPU argument for hypercall handling in QEMU, we
don't pass it for RTAS calls. Since some RTAs calls require
making hypercalls (normally RTAS is implemented as guest code) we
have nasty hacks to allow that.

Add a CPU argument to RTAS call handling so we can more easily
invoke hypercalls just as guest code would.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

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remove some double-includes

Some source files #include the same header more than
once for no good reason. Remove second #includes in
such cases.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it n

hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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mmu-hash*: Add hash pte load/store helpers

On real hardware the ppc hash page table is stored in memory; accordingly
our mmu emulation code can read a hash page table in guest memory. But,
when par

mmu-hash*: Add hash pte load/store helpers

On real hardware the ppc hash page table is stored in memory; accordingly
our mmu emulation code can read a hash page table in guest memory. But,
when paravirtualized under PAPR, the real hash page table is in host
memory, accessible to the guest only via hypercalls. We model this by
also allowing the MMU emulation code to access a specially allocated hash
page table outside the guest's memory image. At present these two options
are implemented with some ugly conditionals at each access point in the mmu
emulation code. In the implementation of the PAPR hypercalls, we assume
the external hash table.

This patch cleans things up by adding helpers to load and store from the
hash table for both 32-bit and 64-bit hash mmus. The 64-bit versions
handle both the in-guest-memory and outside guest memory cases. The 32-bit
versions only handle the in-guest-memory case since no 32-bit systems can
have an external hash table at present.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>

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mmu-hash*: Add header file for definitions

Currently cpu.h contains a number of definitions relating to the 64-bit
hash MMU. Some are used in the MMU emulation code, but some are only used
in the s

mmu-hash*: Add header file for definitions

Currently cpu.h contains a number of definitions relating to the 64-bit
hash MMU. Some are used in the MMU emulation code, but some are only used
in the spapr MMU management hcall implementations.

This patch moves these definitions (except for a few that are needed
more widely) into mmu-hash64.h header, shared between the MMU emulation
code and the spapr hcall code. The MMU emulation code is also updated to
actually use a number of those definitions in place of hard coded
constants.

Similarly, we add new analogous definitions to mmu-hash32.h and use those
in place of many hard-coded constants in mmu-hash32.c

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[agraf: fix 32-bit hosts]
Signed-off-by: Alexander Graf <agraf@suse.de>

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cpu: Move halted and interrupt_request fields to CPUState

Both fields are used in VMState, thus need to be moved together.
Explicitly zero them on reset since they were located before
breakpoints.

cpu: Move halted and interrupt_request fields to CPUState

Both fields are used in VMState, thus need to be moved together.
Explicitly zero them on reset since they were located before
breakpoints.

Pass PowerPCCPU to kvmppc_handle_halt().

Signed-off-by: Andreas Färber <afaerber@suse.de>

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ppc: move more files to hw/ppc

These sPAPR files do not implement devices, move them over.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>