linux-user: fix segmentation fault passing with h2g(x) != x

When forwarding a segmentation fault into the guest process, we were passing
the host's address directly into the guest process's signal descriptor.

That obviously confused the guest process, since it didn't know what to make
of the (usually 32-bit truncated) address. Passing in h2g(address) makes the
guest process a lot happier.

To make the code more obvious, introduce a h2g_nocheck() macro that does the
same as h2g(), but allows us to convert addresses that may be outside of guest
mapped range into the guest's view of address space.

This fixes java running in arm-linux-user for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
linux-user: Fix epoll on ARM hosts

The epoll emulation uses data structures without packing them, so the
compiler might choose to add padding inside.

This patch makes the most offending one (target_epoll_event) a packed
structure to make sure we don't pad it by accident. ARM would pad it,
so declare the padding mandatory for ARM targets.

This fixes i386-on-ARM epoll emulation for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
linux-user: Reset copied CPUs in cpu_copy() always

When a new thread gets created, we need to reset non arch specific state to
get the new CPU into clean state.

However this reset should happen before the arch specific CPU contents get
copied over. Otherwise we end up having clean reset state in our newly created
thread.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
linux-user: Unlock mmap_lock when resuming guest from page_unprotect

The page_unprotect() function is running everything locked. Before every
potential exit path of the function mmap_unlock() gets called to make sure
we don't leak the lock.

However, the function calls tb_invalidate_phys_page() which again can
exit a signal through longjmp, leaving our mmap_unlock() attempts in vain.

Add a hint to tb_invalidate_phys_page() that we need to unlock before we
can leave back into guest context, so that we don't leak the lock.

This fixes 16-bit i386 wine programs running in linux-user for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
linux-user: Handle compressed ISA encodings when processing MIPS exceptions

Decode trap instructions during the handling of an EXCP_BREAK or EXCP_TRAP
according to the current ISA mode.

Signed-off-by: Kwok Cheung Yeung <kcy@codesourcery.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into staging

QOM device refactorings

* Avoid TYPE_* in VMStateDescription name
* Replace some DO_UPCAST()s and FROM_SYSBUS()s with QOM casts
* Limit legacy SCSI command line handling to non-hotplugged devices
* Replace some SysBusDeviceClass::init with DeviceClass::realize

# gpg: Signature made Mon 22 Jul 2013 06:31:42 PM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Hu Tao (26) and others
# Via Andreas Färber
* afaerber/tags/qom-devices-for-anthony: (55 commits)
  isa-bus: Drop isabus_bridge_init() since it does nothing
  ioapic: Use QOM realize for ioapic
  kvmvapic: Use QOM realize
  kvm/clock: Use QOM realize for kvmclock
  hpet: Use QOM realize for hpet
  scsi: Improve error propagation for scsi_bus_legacy_handle_cmdline()
  megasas: Legacy command line handling fix
  scsi/esp: Use QOM realize for scsi esp
  fw_cfg: Use QOM realize for fw_cfg
  ahci: Use QOM realize for ahci
  pflash_cfi02: Use QOM realize for pflash_cfi02
  pflash_cfi01: Use QOM realize for pflash_cfi01
  fdc: Improve error propagation for QOM realize
  fdc: Use QOM realize for fdc
  kvm/clock: QOM'ify some more
  hpet: QOM'ify some more
  scsi/esp: QOM'ify some more
  fwcfg: QOM'ify some more
  ahci: QOM'ify some more
  pflash-cfi02: QOM'ify some more
  ...
Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into staging

QOM CPUState refactorings

* Fix NULL pointer dereference in gdbstub
* Introduce vaddr type
* Introduce CPUClass::set_pc()
* Introduce CPUClass::synchronize_from_tb()
* Introduce CPUClass::get_phys_page_debug()
* Introduce CPUClass::memory_rw_debug()
* Move singlestep_enabled and gdb_regs fields out of CPU_COMMON
* Adopt CPUState in more APIs
* Propagate CPUState in gdbstub

# gpg: Signature made Mon 22 Jul 2013 07:50:17 PM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Andreas Färber (21) and others
# Via Andreas Färber
* afaerber/tags/qom-cpu-for-anthony: (24 commits)
  linux-user: Use X86CPU property to retrieve CPUID family
  gdbstub: Change gdb_register_coprocessor() argument to CPUState
  cpu: Move gdb_regs field from CPU_COMMON to CPUState
  gdbstub: Change GDBState::{c,g}_cpu and find_cpu() to CPUState
  cpu: Introduce CPUClass::memory_rw_debug() for target_memory_rw_debug()
  exec: Change cpu_memory_rw_debug() argument to CPUState
  cpu: Turn cpu_get_phys_page_debug() into a CPUClass hook
  gdbstub: Change gdb_{read,write}_register() argument to CPUState
  gdbstub: Change gdb_handlesig() argument to CPUState
  gdbstub: Change syscall callback argument to CPUState
  kvm: Change kvm_{insert,remove}_breakpoint() argument to CPUState
  cpu: Change cpu_single_step() argument to CPUState
  gdbstub: Update gdb_handlesig() and gdb_signalled() Coding Style
  cpu: Move singlestep_enabled field from CPU_COMMON to CPUState
  target-alpha: Copy implver to DisasContext
  target-alpha: Copy singlestep_enabled to DisasContext
  cpu: Introduce CPUClass::synchronize_from_tb() for cpu_pc_from_tb()
  target-unicore32: Implement CPUClass::set_pc()
  target-moxie: Implement CPUClass::set_pc()
  target-m68k: Implement CPUClass::set_pc()
  ...
Merge remote-tracking branch 'quintela/migration.next' into staging

# By Michael R. Hines (8) and others
# Via Juan Quintela
* quintela/migration.next:
  migration: add autoconvergence documentation
  Fix real mode guest segments dpl value in savevm
  Fix real mode guest migration
  rdma: account for the time spent in MIG_STATE_SETUP through QMP
  rdma: introduce MIG_STATE_NONE and change MIG_STATE_SETUP state transition
  rdma: allow state transitions between other states besides ACTIVE
  rdma: send pc.ram
  rdma: core logic
  rdma: introduce ram_handle_compressed()
  rdma: bugfix: ram_control_save_page()
  rdma: update documentation to reflect new unpin support

Message-id: 1374590725-14144-1-git-send-email-quintela@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
po/Makefile: Fix and improve help message

The help message contains single quotes which got lost in the output.
Fix also a typo and use two instead of three lines.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
po/Makefile: Fix *.mo generation for out-of-tree builds (regression)

Commit f84756554e32d97db3aa949db1dd58c7eea62375 added a wildcard search
for *.po files. This search found no files for out of tree builds, so
those builds no longer created and installed *.mo files.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
po/Makefile: Fix generation of messages.po

* Tell xgettext that we use UTF-8 encoding (this is currently optional).

* Set charset=UTF-8 in messages.po. This avoids warnings from msgmerge:
  warning: Charset "CHARSET" is not a portable encoding name.

* Use filename relative to root directory (ui/gtk.c instead of ../ui/gtk.c
  or $(SRC_PATH)/ui/gtk.c) for comments in *.po files.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
po/Makefile: Use macro quiet-command for nice looking messages

Suppress also the "... done" message from msgmerge.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
seabios: update to 1.7.3

Changes summary (git shortlog rel-1.7.2.2..rel-1.7.3):

Alex Williamson (4):
      seabios q35: Enable all PIRQn IRQs at startup
      seabios q35: Add new PCI slot to irq routing function
      seabios: Add a dummy PCI slot to irq mapping function
      pciinit: Enable default VGA device

Asias He (2):
      virtio-scsi: Set _DRIVER_OK flag before scsi target scanning
      virtio-scsi: Pack struct virtio_scsi_{req_cmd,resp_cmd}

Avik Sil (1):
      USB-EHCI: Fix null pointer assignment

Christian Gmeiner (5):
      geodevga: fix errors in geode_fp_* functions
      geodevga: move framebuffer setup
      geodevga: move output setup to own function
      geodevga: add debug to msr functions
      geodevga: fix wrong define name

David Woodhouse (26):
      Add macros for pushing and popping struct bregs
      Clean up #if in pirtable.c. CONFIG_PIRTABLE can't be set if CONFIG_COREBOOT is
      post: Export functions which will be used individually by CSM
      Export callrom() for CSM to use
      Export copy_smbios() from biostables.c
      Import LegacyBios.h from OVMF
      Complete and checksum EFI_COMPATIBILITY16_TABLE at build time
      Add pic_save_mask() and pic_restore_mask() functions
      Add CSM support
      Add README.CSM
      Add find_pmtimer() function
      Enable PMTIMER for CSM build
      Fix rom_reserve()/rom_confirm() for CSM oprom dispatch
      Don't calibrate TSC if PMTIMER is already set up
      Move find_pmtimer() to ACPI table setup where it logically belongs
      Use find_pmtimer() after copying Xen ACPI tables
      Use find_pmtimer() after copying coreboot ACPI tables
      Unify return path for CSM to go via csm_return()
      Make CONFIG_OPTIONROMS_DEPLOYED depend on CONFIG_QEMU
      Implement !CONFIG_OPTIONROMS support for CSM
      Implement !CONFIG_BOOT for CSM
      Enable VGA output when settings bochs-specific mode
      Disable CONFIG_THREAD_OPTIONROMS for CSM build
      Fix return type of le64_to_cpu() and be64_to_cpu()
      Rename find_pmtimer() to find_acpi_features()
      Add acpi_reboot() reset method using RESET_REG

Gerd Hoffmann (3):
      config: allow DEBUG_IO for !QEMU
      coreboot: add qemu detection
      tweak coreboot qemu detection

Hu Tao (1):
      Add pvpanic device driver

Kevin O'Connor (99):
      pmm: Use 'struct segoff_s' in pmm header.
      Minor: Update README - variable changes are now reset on soft-reboots.
      Normalize POST initialization function name suffixes.
      POST: Reorganize post init functions for better grouping and reusability.
      Fix rebase error in commit 8a0a972f that broke LOWMEM variables.
      Support calling a function other than maininit() from reloc_preinit().
      Ensure exported symbols are visible in the final link
      POST: Move QEMU specific ramsize and BIOS table setup to paravirt.c.
      POST: Reorganize post entry and "preinit" functions.
      POST: Move cpu caching and dma setup to platform_hardware_setup().
      Undo incorrect assumptions about Xen in commit 6ca0460f.
      Determine century during init and store in VARLOW mem during runtime.
      No need to check both CONFIG_THREADS and CONFIG_THREAD_OPTIONROMS.
      Add runningOnQEMU() and runningOnXen() for runtime platform detection.
      Consistently use CONFIG_COREBOOT, CONFIG_QEMU, and runningOnXen().
      Convert kvm_para_available() to runningOnKVM().
      Minor - move definitions to paravirt.c from paravirt.h.
      Only perform SMP setup on QEMU.
      Start device_hardware_setup in mainint even with CONFIG_THREAD_OPTIONROMS.
      The mathcp setup touches the PIC and thus move to the "setup" phase.
      Update tools/acpi_extract.py to handle iasl 20130117 release.
      Support skipping content when reading from QEMU fw_cfg romfile entries.
      Convert fw_cfg ACPI entries into romfile entries.
      Convert fw_cfg SMBIOS entries into romfile entries.
      Convert basic integer fw_cfg entries into romfile entries.
      Convert fw_cfg NUMA entries into a romfile entry.
      Process fw_cfg e820 entries during the fw_cfg setup stage.
      Integrate qemu_cfg_preinit() into qemu_romfile_init().
      Group QEMU platform setup together and move to paravirt.c.
      vgabios: Bochs/QEMU vgabios support should depend on CONFIG_QEMU.
      Warn on unaligned PCI ROM structure in option roms.
      Fix Makefile - don't reference "out/" directly, instead use "$(OUT)".
      build: Don't require $(OUT) to be a sub-directory of the main directory.
      Rename rom_get_top() to rom_get_max().
      Report on f-segment UMB ram also.
      Clarify build generated "zone low" values.
      Verify CC is valid during build tests.
      Disable handle_post() on CSM builds.
      Remove unnecessary "export" declarations from assembler functions.
      Minor assembler enhancements to __csm_return.
      Introduce VARFSEG for variables that will reside in the f-segment.
      Convert VAR16VISIBLE, VAR16EXPORT, and VAR32VISIBLE to VARFSEG.
      Don't relocate "varlow" variable references at runtime.
      Move malloc's ZoneFSeg and ZoneLow setup to malloc_init.
      Calculate "RamSize" needed by 16bit interface dynamically.
      Eliminate separate BiosTableSpace[] space for f-segment allocations.
      Use CONFIG_ prefix for Kconfig variables; use BUILD_ for others.
      Try to detect an unsuccessful hard-reboot to prevent soft-reboot loops.
      Minor - fix confusing final_sec32low_start name in layoutrom.py.
      Minor - introduce numeric defines for the IVT offset of hw irqs.
      Separate out 16bit PCI-BIOS entry point from regular int 0x1a entry point.
      Support using the "extra stack" for all 16bit irq entry points.
      Minor - improve comments and grouping of handle_08().
      floppy: Introduce 'struct floppy_pio_s' for floppy PIO ops.
      floppy: Cleanup floppy irq wait handling.
      floppy: Clean up Check Interrupt Status code.
      floppy: Move recalibration and results parsing to floppy_cmd().
      floppy: Improve floppy_pio() error checking.
      floppy: Implement media format sensing.
      floppy: Actually do controller reset in floppy_reset().
      Minor - note that passing QEMU config via cmos is deprecated.
      Cache boot-fail-wait to avoid romfile access after POST.
      Rename src/ssdt-susp.dsl to src/ssdt-misc.dsl.
      acpi: Eliminate BDAT parameter passing to DSDT code.
      Add additional dependency checks to Makefile.
      Don't use __FILE__ in virtio-ring.c.
      shadow: Don't use PCIDevices list in make_bios_readonly().
      smm: Don't use PCIDevices list in smm_setup().
      Add VARVERIFY32INIT attribute for variables only available during "init".
      Use VARVERIFY32INIT on global variables that point to "tmp" memory.
      vgabios: Fix stdvga_perform_gray_scale_summing().
      vgabios: Fix cirrus memory clear on mode switch.
      Minor - add missing newline to floppy debug statement.
      Fix bug in NUMA node setup - don't create SRAT if NUMA not present.
      Update README - copy *.aml files for QEMU.
      Add dependencies to vgafixup.py and buildversion.sh scripts.
      Set ZF prior to keyboard read call in check_for_keystroke().
      mptable: Don't describe pci-to-pci bridges.
      mptable: Use same PCI irqs as ACPI code.
      Cleanup QEMU_CFG_NUMA fw_cfg processing - split into two romfile entries.
      Use container_of on romfile entries.
      acpi: Move ACPI table definitions from acpi.c to acpi.h.
      acpi: Remove dead code with descriptions of bit flags.
      acpi: Use cpu_to_leXX() consistently.
      Minor - explicitly close files in buildrom.py.
      Minor - move "tracked memory alloc" code in pmm.c.
      Introduce and convert pmm code to use standard list helpers.
      Minor - relocate code in stacks.c to keep low-level thread code together.
      Introduce helper function have_threads() in stacks.c.
      Convert stacks.c to use standard list manipulation code.
      Convert boot.c to use standard list manipulation code.
      Convert pciinit.c to use standard list manipulation code.
      Convert PCIDevices list to use standard list manipultion code.
      Revert "Convert pciinit.c to use standard list manipulation code."
      Fix error in hlist_for_each_entry_safe macro.
      Convert pciinit.c to use standard list manipulation code.
      make qemu_cfg_init depend on QEMU_HARDWARE instead of QEMU
      Another fix for hlist_for_each_entry_safe.
      Minor - remove debugging dprintf added to pciinit.c.

Laszlo Ersek (1):
      Enable VGA output when setting Cirrus-specific mode

Michael S. Tsirkin (1):
      acpi: make default DSDT optional

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Initialize IA32_FEATURE_CONTROL MSR in reset and migration

The recent KVM patch adds IA32_FEATURE_CONTROL support. QEMU needs
to clear this MSR when reset vCPU and keep the value of it when
migration. This patch add this feature.

Signed-off-by: Arthur Chunqi Li <yzt356@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
sh4: do not use isa_mmio

This fixes endianness bugs in I/O port access (for sh4eb).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-2-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
ppc_oldworld: do not use isa_mmio

This fixes endianness bugs in I/O port access.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-3-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
ppc_newworld: do not use isa_mmio

This fixes endianness bugs in I/O port access.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-4-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
spapr_pci: remove indirection for I/O port access

This fixes endianness bugs in I/O port access.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-5-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
prep: fix I/O port endianness

Do not swap endianness here, it will happen during cpu_{in,out}{b,w,l}.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-6-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
mips_jazz: do not use isa_mmio

This fixes endianness bugs in I/O port access.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1374501278-31549-7-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>