Detect pthread_setname_np at configure time

Warn if no way of setting thread name is available.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Don't enable a HPET timer if HPET is disabled

A HPET timer can be started when HPET is not yet
enabled. This will not generate an interrupt
to the guest, but causes problems when HPET is later
enabled.

A timer that is created and expires at least once before
HPET is enabled will have an initialized comparator based
on a hpet_offset of 0 (uninitialized). When HPET is
enabled, hpet_set_timer() is called a second time, which
modifies the timer expiry to a time based on the
difference between current ticks (measured with the
newly initialized hpet_offset) and the timer's
comparator (which was generated before hpet_offset was
initialized). This results in a long period of no HPET
timer ticks.

When this occurs with a CentOS 5.x guest, the guest
may not receive timer interrupts during its narrow
timer check window and panic on boot.

Signed-off-by: Matt Lupfer <mlupfer@ddn.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
tcg-arm: Avoid ldrd/strd for user-only emulation

The arm ldrd/strd insns must cause alignment traps, whereas
at least for armv7 ldr/str must handle unaligned operations.

While this is hardly the only problem facing user-only emu,
this solves one problem for i386 on armv7 emulation.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
acpi: fix ACPI generation for pci bridges

Commit 8dcf525abc5dff785251a881f9764dd961065c0d
    acpi-build: append description for non-hotplug
appended description for all occupied non hotpluggable PCI slots.
However the bridge devices are already added to SSDT,
adding them again will create an incorrect SSDT table.

Fixed by skipping the pci bridge devices, marking them as 'system'.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi,pc,build bug fixes

Here are some bugfixes for 2.0.

A bugfix for acpi for pci bridges, and a build fix for
old systems without pthread_setname_np: both fix regressions
so we definitely want to include them.
HPET fix is not for a regression but looks very safe,
fixes a nasty bug and has been on list for a while.

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

# gpg: Signature made Fri 28 Mar 2014 12:00:12 GMT 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:
  acpi: fix ACPI generation for pci bridges
  Don't enable a HPET timer if HPET is disabled
  Detect pthread_setname_np at configure time

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Merge remote-tracking branch 'remotes/rth/tcg-arm-unaligned' into staging

* remotes/rth/tcg-arm-unaligned:
  tcg-arm: Avoid ldrd/strd for user-only emulation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
make-release: Record SeaBIOS version

Before deleting .git, determine the version and save it in .version file.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1395277315-7806-1-git-send-email-afaerber@suse.de
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target-i386: x86_cpu_get_phys_page_debug(): support 1GB page translation

Linux guests, when using more than 4GB of RAM, may end up using 1GB pages
to store (kernel) data. When this happens, we're unable to debug a running
Linux kernel with GDB:

(gdb) p node_data[0]->node_id
Cannot access memory at address 0xffff88013fffd3a0
(gdb)

GDB returns this error because x86_cpu_get_phys_page_debug() doesn't support
translating 1GB pages in IA-32e paging mode and returns an error to GDB.

This commit adds support for 1GB page translation for IA32e paging.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Avoid QOM casts for CPU()

CPU address spaces touching load and store helpers as well as the
movement of (almost) all fields from CPU_COMMON to CPUState have led to
a noticeable increase of CPU() usage in "hot" paths for both TCG and KVM.

While CPU()'s OBJECT_CHECK() might help detect development errors, i.e. in
form of crashes due to QOM vs. non-QOM mismatches rather than QOM type
mismatches, it is not really needed at runtime since mostly used in
CPU-specific paths, coming from a target-specific CPU subtype. If that
pointer is damaged, other errors are highly likely occur elsewhere anyway.

Keep the CPU() macro for a consistent developer experience and
flexibility to exchange its implementation, but turn it into a pure
C cast for now.

Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu: Unify reset handling

As an interim step towards cleaning up CPU reset, reset in CPUState's
realizefn. This adds reset calls for alpha and unicore32, who do not
implement memset(env, 0, offsetof(CPUArchState, breakpoints)) yet.
Also now reset are ppc and sparc.

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