EX_CONTEXT_0_0 is used for jumping address, and EX_CONTEXT_0_1 is for
INTERRUPT_CRITICAL_SECTION, which should only be 0 or 1 in user mode, or
it will cause target SIGILL (and the patch doesn't support system mode).
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

For some cases, they are for TILEGX_EXCP_OPCODE_UNKNOWN, not for
TILEGX_EXCP_OPCODE_UNIMPLEMENTED.

Also for some cases, they are for TILEGX_EXCP_OPCODE_UNIMPLEMENTED, not
for TILEGX_EXCP_OPCODE_UNKNOWN.

When analyzing issues, the correct printing information is necessary,
e.g. grep UIMP in gcc testsuite output log for finding qemu tilegx
umimplementation issues, grep UNKNOWN for finding unknown instructions.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443956491-26850-3-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443956491-26850-2-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

It is just according to v1sh* instructions implementation.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443956491-26850-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

These are mapped onto some of the normal load instructions, when the
destination is the zero register.  Other load insns do fault even
when targeting the zero register.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443562720-3008-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Consolidate signal handling under a single exception.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Notice raise and bpt, decoding the constants embedded in the
nop addil instruction in the x0 slot.

[rth: Generalize TILEGX_EXCP_OPCODE_ILL to TILEGX_EXCP_SIGNAL.
Drop validation of signal values.]
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443243635-4886-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

[rth: Remove the spreg[EX1] handling, as it's irrelevant to user-mode.]
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443312618-13641-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

They content several new macro members, also contents TARGET_N*.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443240605-2924-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

According to the related document, bpt can be only in x1 pipe.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1443224574-2718-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>

Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: NRichard Henderson <rth@twiddle.net>
Message-Id: <1442874414-3578-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

[rth: Implement everything inline; handle v1addi and v2addi as well.]
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1442873918-3394-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

v2sh* are implemented with helper functions; v4sh* are implmeneted
with inline code.
Signed-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Message-Id: <1442872055-2836-1-git-send-email-gang.chen.5i5j@gmail.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>

Using the V1 macro when we want to replicate a byte across
the 8 elements of the word.  Using deposit and extract for
manipulating specific elements.
Signed-off-by: NRichard Henderson <rth@twiddle.net>

X86 queue, 2015-10-05

# gpg: Signature made Mon 05 Oct 2015 17:04:38 BST using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"

* remotes/ehabkost/tags/x86-pull-request:
  icc_bus: drop the unused files
  cpu/apic: drop icc bus/bridge
  x86: use new method to correct reset sequence
  apic: move APIC's MMIO region mapping into APIC
  Correctly re-init EFER state during INIT IPI
  target-i386: add ABM to Haswell* and Broadwell* CPU models
  target-i386: get/put MSR_TSC_AUX across reset and migration
  target-i386: Make check_hw_breakpoints static
  target-i386: Move breakpoint related functions to new file
  target-i386: Convert kvm_default_*features to property/value pairs
  vl: Add another sanity check to smp_parse() function
  cpu: Introduce X86CPUTopoInfo structure for argument simplification
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

# gpg: Signature made Mon 05 Oct 2015 17:01:11 BST using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  qtest/ide-test: ppc64be correction for ATAPI tests
  MAINTAINERS: Small IDE/FDC touchup
  qtest/ahci: fix redundant assertion
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

vhost-user depends on vhost-net. We should probably fix that.
For now, let's disable the test otherwise.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

the 16bit ide data register is LE by definition.
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Reviewed-by: NKevin Wolf <kwolf@redhat.com>
Message-id: 1443461938-30039-1-git-send-email-jsnow@redhat.com

libqos/ahci and tests/fdc-test are under my purview also,
include them in the appropriate stanzas.
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Message-id: 1443117055-29240-1-git-send-email-jsnow@redhat.com

Fixes https://bugs.launchpad.net/qemu/+bug/1497711

(!ncq || (ncq && lba48)) is the same as
(!ncq || lba48).

The intention is simply: "If a command is NCQ,
it must also be LBA48."
Signed-off-by: NJohn Snow <jsnow@redhat.com>
Message-id: 1442868929-17777-1-git-send-email-jsnow@redhat.com

ICC bus impl has been droped, so all icc related files are not useful
any more; delete them.
Signed-off-by: NZhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

After CPU hotplug has been converted to BUS-less hot-plug infrastructure,
the only function ICC bus performs is to propagate reset to LAPICs. However
LAPIC could be reset by registering its reset handler after all device are
initialized.
Do so and drop ~30LOC of not needed anymore ICCBus related code.
Signed-off-by: NChen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: NZhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

During reset some devices (such as hpet, rtc) might send IRQ to APIC
which changes APIC's state from default one it's supposed to have
at machine startup time.
Fix this by resetting APIC after devices have been reset to cancel
any changes that qemu_devices_reset() might have done to its state.
Signed-off-by: NZhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

When ICC bus/bridge is removed, APIC MMIO will be left
unmapped since it was mapped into system's address space
indirectly by ICC bridge.
Fix it by moving mapping into APIC code, so it would be
possible to remove ICC bus/bridge code later.
Signed-off-by: NChen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: NZhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: NIgor Mammedov <imammedo@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

When doing a re-initialization of a CPU core, the default state is to _not_
have 64-bit long mode enabled. This means the LME (long mode enable) and LMA
(long mode active) bits in the EFER model-specific register should be cleared.

However, the EFER state is part of the CPU environment which is
preserved by do_cpu_init(), so if EFER.LME and EFER.LMA were set at the
time an INIT IPI was received, they will remain set after the init completes.

This is contrary to what the Intel architecture manual describes and what
happens on real hardware, and it leaves the CPU in a weird state that the
guest can't clear.

To fix this, the 'efer' member of the CPUX86State structure has been moved
to an area outside the region preserved by do_cpu_init(), so that it can
be properly re-initialized by x86_cpu_reset().
Signed-off-by: NBill Paul <wpaul@windriver.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

ABM is only implemented as a single instruction set by AMD; all AMD
processors support both instructions or neither. Intel considers POPCNT
as part of SSE4.2, and LZCNT as part of BMI1, but Intel also uses AMD's
ABM flag to indicate support for both POPCNT and LZCNT.  It has to be
added to Haswell and Broadwell because Haswell, by adding LZCNT, has
completed the ABM.

Tested with "qemu-kvm -cpu Haswell-noTSX,enforce" (and also with older
machine types) on an Haswell-EP machine.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

There's one report of migration breaking due to missing MSR_TSC_AUX
save/restore.  Fix this by adding a new subsection that saves the state
of this MSR.

https://bugzilla.redhat.com/show_bug.cgi?id=1261797Reported-by: NXiaoqing Wei <xwei@redhat.com>
Signed-off-by: NAmit Shah <amit.shah@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
CC: Juan Quintela <quintela@redhat.com>
CC: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
CC: Marcelo Tosatti <mtosatti@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

The function is now only used from within a single file.
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

Convert the kvm_default_features and kvm_default_unset_features arrays
into a simple list of property/value pairs that will be applied to
X86CPU objects when using KVM.
Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

The code in smp_parse already checks the topology information for
sockets * cores * threads < cpus and bails out with an error in
that case. However, it is still possible to supply a bad configuration
the other way round, e.g. with:

 qemu-system-xxx -smp 4,sockets=1,cores=4,threads=2

QEMU then still starts the guest, with topology configuration that
is rather incomprehensible and likely not what the user wanted.
So let's add another check to refuse such wrong configurations.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NEduardo Habkost <ehabkost@redhat.com>
Acked-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NBastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

In order to simplify arguments of function, introduce a new struct
named X86CPUTopoInfo.
Signed-off-by: NChen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: NZhu Guihua <zhugh.fnst@cn.fujitsu.com>
Signed-off-by: NEduardo Habkost <ehabkost@redhat.com>

virtio,pc features, fixes

New features:
    guest RAM buffer overrun mitigation
    RAM physical address gaps for memory hotplug
    (except refactoring which got some review comments)
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 02 Oct 2015 15:04:56 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:
  vhost-user-test: fix predictable filename on tmpfs
  vhost-user-test: use tmpfs by default
  pc: memhp: force gaps between DIMM's GPA
  memhp: extend address auto assignment to support gaps
  vhost-user: unit test for new messages
  vhost-user-test: do not reinvent glib-compat.h
  virtio: Notice when the system doesn't support MSIx at all
  pc: Add a comment explaining why pc_compat_2_4() doesn't exist
  exec: allocate PROT_NONE pages on top of RAM
  oslib: allocate PROT_NONE pages on top of RAM
  oslib: rework anonimous RAM allocation
  virtio-net: correctly drop truncated packets
  virtio: introduce virtqueue_discard()
  virtio: introduce virtqueue_unmap_sg()
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

First set of Linux-user que patches for 2.5

# gpg: Signature made Fri 02 Oct 2015 13:38:00 BST using RSA key ID DE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg:                 aka "Riku Voipio <riku.voipio@linaro.org>"

* remotes/riku/tags/pull-linux-user-20151002:
  linux-user: assert that target_mprotect cannot fail
  linux-user/signal.c: Use setup_rt_frame() instead of setup_frame() for target openrisc
  linux-user/syscall.c: Add EAGAIN to host_to_target_errno_table for
  linux-user: add name_to_handle_at/open_by_handle_at
  linux-user: Return target error number in do_fork()
  linux-user: fix cmsg conversion in case of multiple headers
  linux-user: remove MAX_ARG_PAGES limit
  linux-user: remove unused image_info members
  linux-user: Treat --foo options the same as -foo
  linux-user: use EXIT_SUCCESS and EXIT_FAILURE
  linux-user: Add proper error messages for bad options
  linux-user: Add -help
  linux-user: Exit 0 when -h is used
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

vhost-user-test uses getpid to create a unique filename. This name is
predictable, and a security problem.  Instead, use a tmp directory
created by mkdtemp, which is a suggested best practice.
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>