Commit Graph

39214 Commits

Author SHA1 Message Date
Miroslav Rezanina
9157eee1b1 Move parallel_hds_isa_init to hw/isa/isa-bus.c
Disabling CONFIG_PARALLEL cause removing parallel_hds_isa_init defined in
parallel.c. This function is called during initialization of some boards so
disabling CONFIG_PARALLEL cause build failure.

This patch moves parallel_hds_isa_init to hw/isa/isa-bus.c so it is included
in case of disabled CONFIG_PARALLEL. Build is successful but qemu will abort
with "Unknown device" error when function is called.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Message-Id: <1431509970-32154-1-git-send-email-mrezanin@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-05 17:09:58 +02:00
Peter Maydell
00967f4e0b Patch queue for s390 - 2015-06-05
This time there are a lot of s390x TCG emulation bug fixes - almost all
 of them from Aurelien, who returned from nirvana :).
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Merge remote-tracking branch 'remotes/agraf/tags/signed-s390-for-upstream' into staging

Patch queue for s390 - 2015-06-05

This time there are a lot of s390x TCG emulation bug fixes - almost all
of them from Aurelien, who returned from nirvana :).

# gpg: Signature made Fri Jun  5 00:39:27 2015 BST 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-s390-for-upstream: (34 commits)
  target-s390x: Only access allocated storage keys
  target-s390x: fix MVC instruction when areas overlap
  target-s390x: use softmmu functions for mvcp/mvcs
  target-s390x: support non current ASC in s390_cpu_handle_mmu_fault
  target-s390x: add a cpu_mmu_idx_to_asc function
  target-s390x: implement high-word facility
  target-s390x: implement load-and-trap facility
  target-s390x: implement miscellaneous-instruction-extensions facility
  target-s390x: implement LPDFR and LNDFR instructions
  target-s390x: implement TRANSLATE EXTENDED instruction
  target-s390x: implement TRANSLATE AND TEST instruction
  target-s390x: implement LOAD FP INTEGER instructions
  target-s390x: move SET DFP ROUNDING MODE to the correct facility
  target-s390x: move STORE CLOCK FAST to the correct facility
  target-s390x: change CHRL and CGHRL format to RIL-b
  target-s390x: fix CLGIT instruction
  target-s390x: fix exception for invalid operation code
  target-s390x: implement LAY and LAEY instructions
  target-s390x: move a few instructions to the correct facility
  target-s390x: detect tininess before rounding for FP operations
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-05 12:04:42 +01:00
Alexander Graf
9814fed0af target-s390x: Only access allocated storage keys
We allocate ram_size / PAGE_SIZE storage keys, so we need to make sure that
we only access that many. Unfortunately the code can overrun this array by
one, potentially overwriting unrelated memory.

Fix it by limiting storage keys to their scope.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
2015-06-05 01:38:00 +02:00
Aurelien Jarno
068593deea target-s390x: fix MVC instruction when areas overlap
The MVC instruction and the memmove C funtion do not have the same
semantic when memory areas overlap:

MVC: When the operands overlap, the result is obtained as if the
operands were processed one byte at a time and each result byte were
stored immediately after fetching the necessary operand byte.

memmove: Copying takes place as though the bytes in src are first copied
into a temporary array that does not overlap src or dest, and the bytes
are then copied from the temporary array to dest.

The behaviour is therefore the same when the destination is at a lower
address than the source, but not in the other case. This is actually a
trick for propagating a value to an area. While the current code detects
that and call memset in that case, it only does for 1-byte value. This
trick can and is used for propagating two or more bytes to an area.

In the softmmu case, the call to mvc_fast_memmove is correct as the
above tests verify that source and destination are each within a page,
and both in a different page. The part doing the move 8 bytes by 8 bytes
is wrong and we need to check that if the source and destination
overlap, they do with a distance of minimum 8 bytes before copying 8
bytes at a time.

In the user code, we should check check that the destination is at a
lower address than source or than the end of the source is at a lower
address than the destination before calling memmove. In the opposite
case we fallback to the same code as the softmmu one. Note that l
represents (length - 1).

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
a3084e8055 target-s390x: use softmmu functions for mvcp/mvcs
mvcp and mvcs helper get access to the physical memory by a call to
mmu_translate for the virtual to real conversion and then using ldb_phys
and stb_phys to physically access the data. In practice this is quite
slow because it bypasses the QEMU softmmu TLB and because stb_phys calls
try to invalidate the corresponding memory for each access.

Instead use cpu_ldb_{primary,secondary} for the loads and
cpu_stb_{primary,secondary} for the stores. Ideally this should be
further optimized by a call to memcpy, but that already improves the
boot time of a guest by a factor 1.8.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
c255ac6012 target-s390x: support non current ASC in s390_cpu_handle_mmu_fault
s390_cpu_handle_mmu_fault currently looks at the current ASC mode
defined in PSW mask instead of the MMU index. This prevent emulating
easily instructions using a specific ASC mode. Fix that by using the
MMU index converted back to ASC using the just added cpu_mmu_idx_to_asc
function.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
4decd76d71 target-s390x: add a cpu_mmu_idx_to_asc function
Use constants to define the MMU indexes, and add a function to do
the reverse conversion of cpu_mmu_index.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
a1f12d855b target-s390x: implement high-word facility
Besides RISBHG and RISBLG, all high-word instructions are not
implemented. Fix that.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
782a847952 target-s390x: implement load-and-trap facility
At the same time move the trap code from op_ct into gen_trap and use it
for all new functions. The value needs to be stored back to register
before the exception, but also before the brcond (as we don't use
temp locals). That's why we can't use wout helper.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
375ee58bed target-s390x: implement miscellaneous-instruction-extensions facility
RISBGN is the same as RISBG, but without setting the condition code.
CLT and CLGT are the same as CLRT and CLGRT, but using memory for the
second operand.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
df46283ce7 target-s390x: implement LPDFR and LNDFR instructions
This complete the floating point support sign handling facility.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
3f4de6756c target-s390x: implement TRANSLATE EXTENDED instruction
It is part of the basic zArchitecture instructions.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
54f0077509 target-s390x: implement TRANSLATE AND TEST instruction
It is part of the basic zArchitecture instructions. Allow it to be call
from EXECUTE.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
ed0bcecec1 target-s390x: implement LOAD FP INTEGER instructions
This is needed to pass the gcc.c-torture/execute/ieee/20010114-2.c test
in the gcc testsuite.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
9182886d79 target-s390x: move SET DFP ROUNDING MODE to the correct facility
It belongs to the DFP rounding facility.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:59 +02:00
Aurelien Jarno
f7c2114067 target-s390x: move STORE CLOCK FAST to the correct facility
STORE CLOCK FAST should be in the SCF facility.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
74266b4a58 target-s390x: change CHRL and CGHRL format to RIL-b
Change to match the PoP. In practice both format RIL-a and RIL-b have
the same fields. They differ on the way we decode the fields, and it's
done correctly in QEMU.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
1dedb9b76f target-s390x: fix CLGIT instruction
The COMPARE LOGICAL IMMEDIATE AND TRAP instruction should compare the
numbers as unsigned, as its name implies.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
111d7f4a69 target-s390x: fix exception for invalid operation code
When an operation code is not recognized (ie invalid instruction) an
operation exception should be generated instead of a specification
exception. The latter is for valid opcode, with invalid operands or
modifiers.

This give a very basic GDB support in the guest, as it uses the invalid
opcode 0x0001 to generate a trap.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
a1c7610a68 target-s390x: implement LAY and LAEY instructions
This complete the general-instructions-extension facility, enable it.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
[agraf: remove facility bit]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
92892330e7 target-s390x: move a few instructions to the correct facility
LY is part of the long-displacement facility.
RISBHG and RISBLG are part of the high-word facility.
STCMH is part of the z/Architecture.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
4a33565f9f target-s390x: detect tininess before rounding for FP operations
The s390x floating point unit detects tininess before rounding, so set
the softfloat fp_status up appropriately.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
f821135cdd target-s390x: silence NaNs for LOAD LENGTHENED and LOAD ROUNDED
LOAD LENGTHENED and LOAD ROUNDED are considered as FP operations and
thus need to convert input sNaN into corresponding qNaN.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
2daea9c16f target-s390x: define default NaN values
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
1f65958d9c target-s390x: fix MMU index computation
The cpu_mmu_index function wrongly looks at PSW P bit to determine the
MMU index, while this bit actually only control the use of priviledge
instructions. The addressing mode is detected by looking at the PSW ASC
bits instead.

This used to work more or less correctly up to kernel 3.6 as the kernel
was running in primary space and userland in secondary space. Since
kernel 3.7 the default is to run the kernel in home space and userland
in primary space. While the current QEMU code seems to work it open some
security issues, like accessing the lowcore memory in R/W mode from a
userspace process once it has been accessed by the kernel (it is then
cached by the QEMU TLB).

At the same time change the MMU_USER_IDX value so that it matches the
value used in recent kernels.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
9bebf9863b target-s390x: fix PSW value on dynamical exception from helpers
runtime_exception computes the psw.addr value using the actual exception
address and the instruction length computed by calling the get_ilen
function. However as explained above the get_ilen code, it returns the
actual instruction length, and not the ILC. Therefore there is no need to
multiply the value by 2.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
aa752a4afc target-s390x: fix LOAD MULTIPLE instruction on page boundary
When consecutive memory locations are on page boundary a page fault
might occur when using the LOAD MULTIPLE instruction. In that case real
hardware doesn't load any register.

This is an important detail in case the base register is in the list
of registers to be loaded. If a page fault occurs this register might be
overwritten and when the instruction is later restarted the wrong
base register value is useD.

Fix this by first loading the first and last value from memory, hence
triggering all possible page faults, and then the remaining registers.

This fixes random segmentation faults seen in the guest.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:58 +02:00
Aurelien Jarno
b8ae94bd39 target-s390x: implement STPT helper
Save the timer target value in the SPT helper, so that the STPT helper
can compute the remaining time.

This allow the Linux kernel to correctly do time accounting.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
aa9e14e684 target-s390x: implement STCKC helper
The STCKC instruction just returns the last written clock comparator
value and KVM already provides the corresponding variable.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
d9d55f1108 target-s390x: streamline STCK helper
Now that clock_value is only used in one place, we can inline it in
the STCK helper.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
c941f07485 target-s390x: simplify SCKC helper
The clock comparator and the QEMU timer work the same way, triggering
at a given time, they just differ by the origin and the scale. It is
therefore possible to go from one to another without using the current
clock value. This spares two calls to qemu_clock_get_ns, which probably
return slightly different values, possibly reducing the accuracy.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
9cb32c442e target-s390x: add a tod2time function
Add a tod2time function similar to the time2tod one, instead of open
coding the conversion.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
a91a1b20a2 target-s390x: remove unused helpers
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
d30107814c target-s390x: optimize (negative-) abs computation
Now that movcond exists, it's easy to write (negative-) absolute value
using TCG code instead of an helper.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
2aaa194068 target-s390x: fix CC computation for LOAD POSITIVE instructions
LOAD POSITIVE instructions (LPR, LPGR and LPGFR) set the following
condition code:
  0: Result zero; no overflow
  1: --
  2: Result greater than zero; no overflow
  3: Overflow

The current code wrongly returns 1 instead of 2 in case of a result
greater than 0. This patches fixes that. This fixes the marshalling of
the value '0L' in Python.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Aurelien Jarno
ee0d0be168 target-s390x: fix CC computation for EX instruction
Commit 7a6c7067f optimized CC computation by only saving cc_op before
calling helpers as they either don't touch the CC or generate a new
static value. This however doesn't work for the EX instruction as the
helper changes or not the CC value depending on the actual executed
instruction (e.g. MVC vs CLC).

This patches force a CC computation before calling the helper. This
fixes random memory corruption occuring in guests.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
[agraf: remove set_cc_static in op_ex as suggested by rth]
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-05 01:37:57 +02:00
Peter Maydell
d6688ba17b pc, acpi, virtio, tpm
This includes pxb support by Marcel, as well as multiple enhancements all over
 the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, acpi, virtio, tpm

This includes pxb support by Marcel, as well as multiple enhancements all over
the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Thu Jun  4 11:51:02 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream: (28 commits)
  vhost: logs sharing
  hw/acpi: piix4_pm_init(): take fw_cfg object no more
  hw/acpi: move "etc/system-states" fw_cfg file from PIIX4 to core
  hw/acpi: acpi_pm1_cnt_init(): take "disable_s3" and "disable_s4"
  pc-dimm: don't assert if pc-dimm alignment != hotpluggable mem range size
  docs: Add PXB documentation
  apci: fix PXB behaviour if used with unsupported BIOS
  hw/pxb: add numa_node parameter
  hw/pci: add support for NUMA nodes
  hw/pxb: add map_irq func
  hw/pci: inform bios if the system has extra pci root buses
  hw/pci: introduce PCI Expander Bridge (PXB)
  hw/pci: removed 'rootbus nr is 0' assumption from qmp_pci_query
  hw/acpi: remove from root bus 0 the crs resources used by other buses.
  hw/acpi: add _CRS method for extra root busses
  hw/apci: add _PRT method for extra PCI root busses
  hw/acpi: add support for i440fx 'snooping' root busses
  hw/pci: extend PCI config access to support devices behind PXB
  hw/i386: query only for q35/pc when looking for pci host bridge
  hw/pci: made pci_bus_num a PCIBusClass method
  ...

Conflicts:
	hw/i386/pc_piix.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 18:33:24 +01:00
Peter Maydell
3b730f570c Patch queue for ppc - 2015-06-03
Highlights this time around:
 
   - sPAPR: endian fixes, speedups, bug fixes, hotplug basics
   - add default ram size capability for machines (sPAPR defaults to 512MB now)
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Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' into staging

Patch queue for ppc - 2015-06-03

Highlights this time around:

  - sPAPR: endian fixes, speedups, bug fixes, hotplug basics
  - add default ram size capability for machines (sPAPR defaults to 512MB now)

# gpg: Signature made Wed Jun  3 22:59:09 2015 BST 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: (40 commits)
  softmmu: support up to 12 MMU modes
  tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS
  tci: do not use CPUArchState in tcg-target.h
  Add David Gibson for sPAPR in MAINTAINERS file
  pseries: Enable in-kernel H_LOGICAL_CI_{LOAD, STORE} implementations
  spapr: override default ram size to 512MB
  machine: add default_ram_size to machine class
  spapr_pci: emit hotplug add/remove events during hotplug
  spapr_pci: enable basic hotplug operations
  pci: make pci_bar useable outside pci.c
  spapr_pci: create DRConnectors for each PCI slot during PHB realize
  spapr_pci: add dynamic-reconfiguration option for spapr-pci-host-bridge
  spapr_drc: add spapr_drc_populate_dt()
  spapr_events: event-scan RTAS interface
  spapr_events: re-use EPOW event infrastructure for hotplug events
  spapr_rtas: add ibm, configure-connector RTAS interface
  spapr: add rtas_st_buffer_direct() helper
  spapr_rtas: add get-sensor-state RTAS interface
  spapr_rtas: add set-indicator RTAS interface
  spapr_rtas: add get/set-power-level RTAS interfaces
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 14:04:14 +01:00
Peter Maydell
2700a976db trivial patches for 2015-06-03
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Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-06-03' into staging

trivial patches for 2015-06-03

# gpg: Signature made Wed Jun  3 14:07:47 2015 BST using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2015-06-03: (30 commits)
  configure: postfix --extra-cflags to QEMU_CFLAGS
  cadence_gem: Fix Rx buffer size field mask
  slirp: use less predictable directory name in /tmp for smb config (CVE-2015-4037)
  translate-all: delete prototype for non-existent function
  Add -incoming help text
  hw/display/tc6393xb.c: Fix misusing qemu_allocate_irqs for single irq
  hw/arm/nseries.c: Fix misusing qemu_allocate_irqs for single irq
  hw/alpha/typhoon.c: Fix misusing qemu_allocate_irqs for single irq
  hw/unicore32/puv3.c: Fix misusing qemu_allocate_irqs for single irq
  hw/lm32/milkymist.c: Fix misusing qemu_allocate_irqs for single irq
  hw/lm32/lm32_boards.c: Fix misusing qemu_allocate_irqs for single irq
  hw/ppc/prep.c: Fix misusing qemu_allocate_irqs for single irq
  hw/sparc/sun4m.c: Fix misusing qemu_allocate_irqs for single irq
  hw/timer/arm_timer.c: Fix misusing qemu_allocate_irqs for single irq
  hw/isa/i82378.c: Fix misusing qemu_allocate_irqs for single irq
  hw/isa/lpc_ich9.c: Fix misusing qemu_allocate_irqs for single irq
  hw/i386/pc: Fix misusing qemu_allocate_irqs for single irq
  hw/intc/exynos4210_gic.c: Fix memory leak by adjusting order
  hw/arm/omap_sx1.c: Fix memory leak spotted by valgrind
  hw/ppc/e500.c: Fix memory leak
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 12:49:15 +01:00
Jason Wang
309750fad5 vhost: logs sharing
Currently we allocate one vhost log per vhost device. This is sub
optimal when:

- Guest has several device with vhost as backend
- Guest has multiqueue devices

In the above cases, we can avoid the memory allocation by sharing a
single vhost log among all the vhost devices. This is done through:

- Introducing a new vhost_log structure with refcnt inside.
- Using a global pointer to vhost_log structure that will be used. And
  introduce helper to get the log with expected log size and helper to
- drop the refcnt to the old log.
- Each vhost device still keep track of a pointer to the log that was
  used.

With above, if no resize happens, all vhost device will share a single
vhost log. During resize, a new vhost_log structure will be allocated
and made for the global pointer. And each vhost devices will drop the
refcnt to the old log.

Tested by doing scp during migration for a 2 queues virtio-net-pci.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-06-04 12:44:49 +02:00
Peter Maydell
6fa6b31276 X86 queue 2015-06-02
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

X86 queue 2015-06-02

# gpg: Signature made Tue Jun  2 20:21:17 2015 BST using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-pull-request:
  arch_init: Drop target-x86_64.conf
  target-i386: Register QOM properties for feature flags
  apic: convert ->busdev.qdev casts to C casts
  target-i386: Fix signedness of MSR_IA32_APICBASE_BASE
  pc: Ensure non-zero CPU ref count after attaching to ICC bus

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 11:44:32 +01:00
Laszlo Ersek
6e7d82497d hw/acpi: piix4_pm_init(): take fw_cfg object no more
This PIIX4 init function has no more reason to receive a pointer to the
FwCfg object. Remove the parameter from the prototype, and update callers.

As a result, the pc_init1() function no longer needs to save the return
value of pc_memory_init() and xen_load_linux(), which makes it more
similar to pc_q35_init().

The return type & value of pc_memory_init() and xen_load_linux() are not
changed themselves; maybe we'll need their return values sometime later.

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1204696
Cc: Amit Shah <amit.shah@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
2015-06-04 11:25:42 +02:00
Laszlo Ersek
e3845e7c47 hw/acpi: move "etc/system-states" fw_cfg file from PIIX4 to core
The acpi_pm1_cnt_init() core function is responsible for setting up the
register block that will ultimately react to S3 and S4 requests (see
acpi_pm1_cnt_write()). It makes sense to advertise this configuration to
the guest firmware via an easy to parse fw_cfg file (ACPI is too complex
for firmware to parse), and indeed PIIX4 does that. However, since
acpi_pm1_cnt_init() is not specific to PIIX4, neither should be the fw_cfg
file.

This patch makes "etc/system-states" appear on all chipsets modified in
the previous patch, not just PIIX4 (assuming they have fw_cfg at all).

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1204696
Cc: Amit Shah <amit.shah@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
2015-06-04 11:25:42 +02:00
Laszlo Ersek
9a10bbb4e8 hw/acpi: acpi_pm1_cnt_init(): take "disable_s3" and "disable_s4"
This patch only modifies the function prototype and updates all chipset
code that calls acpi_pm1_cnt_init() to pass in their own disable_s3 and
disable_s4 settings. vt82c686 is assumed to be fixed "S3 and S4 enabled".

RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1204696
Cc: Amit Shah <amit.shah@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
2015-06-04 11:25:42 +02:00
Peter Maydell
d2ceeb1d68 target-arm queue:
* more EL2 preparation patches
  * revert a no-longer-necessary workaround for old glib versions
  * add GICv2m support to virt board (MSI support)
  * pl061: fix wrong calculation of GPIOMIS register
  * support MSI via irqfd
  * remove a confusing v8_ prefix from some variable names
  * add dynamic sysbus device support to the virt board
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20150602' into staging

target-arm queue:
 * more EL2 preparation patches
 * revert a no-longer-necessary workaround for old glib versions
 * add GICv2m support to virt board (MSI support)
 * pl061: fix wrong calculation of GPIOMIS register
 * support MSI via irqfd
 * remove a confusing v8_ prefix from some variable names
 * add dynamic sysbus device support to the virt board

# gpg: Signature made Tue Jun  2 17:30:38 2015 BST using RSA key ID 14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"

* remotes/pmaydell/tags/pull-target-arm-20150602: (22 commits)
  hw/arm/virt: change indentation in a15memmap
  hw/arm/virt: add dynamic sysbus device support
  hw/arm/boot: arm_load_kernel implemented as a machine init done notifier
  hw/arm/sysbus-fdt: helpers for platform bus nodes addition
  target-arm: Remove v8_ prefix from names of non-v8-specific cpreg arrays
  arm_gicv2m: set kvm_gsi_direct_mapping and kvm_msi_via_irqfd_allowed
  kvm: introduce kvm_arch_msi_data_to_gsi
  pl061: fix wrong calculation of GPIOMIS register
  target-arm: Add the GICv2m to the virt board
  target-arm: Extend the gic node properties
  arm_gicv2m: Add GICv2m widget to support MSIs
  target-arm: Add GIC phandle to VirtBoardInfo
  Revert "target-arm: Avoid g_hash_table_get_keys()"
  target-arm: Add TLBI_VAE2{IS}
  target-arm: Add TLBI_ALLE2
  target-arm: Add TLBI_ALLE1{IS}
  target-arm: Add TTBR0_EL2
  target-arm: Add TPIDR_EL2
  target-arm: Add SCTLR_EL2
  target-arm: Add TCR_EL2
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-06-04 10:21:52 +01:00
Igor Mammedov
b5d3b03922 pc-dimm: don't assert if pc-dimm alignment != hotpluggable mem range size
Drop superfluous pc-dimm alignment on hot-pluggable mem
range size assert, since it causes QEMU crash during hotplug
when hotplugging pc-dimm with alignment bigger than
an alignment of hot-pluggable mem range size.

Instead allow pc_dimm_get_free_addr() find free address
and bail out gracefully later in that function during
checking if pc-dimm will fit in hot-pluggable mem range.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-06-04 11:20:34 +02:00
Paolo Bonzini
1de29aef17 softmmu: support up to 12 MMU modes
At 8k per TLB (for 64-bit host or target), 8 or more modes
make the TLBs bigger than 64k, and some RISC TCG backends do
not like that.  On the affected hosts, cut the TLB size in
half---there is still a measurable speedup on PPC with the
next patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1424436345-37924-3-git-send-email-pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:56 +02:00
Paolo Bonzini
006f8638c6 tcg: add TCG_TARGET_TLB_DISPLACEMENT_BITS
This will be used to size the TLB when more than 8 MMU modes are
used by the target.  Limitations come from the limited size of
the immediate fields (which sometimes, as in the case of Aarch64,
extend to instructions that shift the immediate).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1424436345-37924-2-git-send-email-pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:56 +02:00
Paolo Bonzini
5a58e884d1 tci: do not use CPUArchState in tcg-target.h
tcg-target.h does not use any QEMU-specific symbols, save for tci's usage
of CPUArchState.  Pull that up to tcg/tcg.h.

This will make it possible to include tcg-target.h in cpu-defs.h.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:55 +02:00
David Gibson
085eb217df Add David Gibson for sPAPR in MAINTAINERS file
At Alex Graf's request I'm now acting as sub-maintainer for the sPAPR
(-machine pseries) code.  This updates MAINTAINERS accordingly.

While we're at it, change the label to mention pseries since that's the
actual name of the machine type, even if most of the C files use the sPAPR
name.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-06-03 23:56:55 +02:00