This command was of minimal use before, now it is useless as the hpet
become a qdev device and is thus easily discoverable. We should
definitely not set query-hpet in QMP's stone, and there is also no good
reason to keep it for the interactive monitor.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This implements the HPET capability of routing IRQs to the front-side
bus, aka MSI support. This feature can be enabled via the qdev property
"msi" and is off by default.

Note that switching it on can cause guests (at least Linux) to use the
HPET as timer instead of the LAPIC. KVM users should recall that only
the latter is currently available as fast in-kernel model.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

One HPET block supports up to 32 timers. Allow to instantiate more than
the recommended and implemented minimum of 3. The number is configured
via the qdev property "timers". It is also saved/restored so that it
need not match between migration peers.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Required for hpet.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

By implementing this feature we can also remove a nasty way to kill qemu
(by trying to enable level-triggered hpet interrupts).
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Instead of keeping a static reference around, pass the state to
hpet_enabled and hpet_get_ticks. All callers now have it at hand. Will
once allow to instantiate the HPET more than a single time.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Allow the intercept the RTC IRQ for the HPET legacy mode. Then push
routing to IRQ8 completely into the HPET. This allows to turn
hpet_in_legacy_mode() into a private function. Furthermore, this stops
the RTC from clearing IRQ8 even if the HPET is in control.

This patch comes with a side effect: The RTC timers will no longer be
stoppend when there is no IRQ consumer, possibly causing a minor
performance degration. But as the guest may want to redirect the RTC to
the SCI in that mode, it should normally disable unused IRQ source
anyway.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

We have to update the qemu timer when the per-timer enable bit is
toggled, just like for HPET_CFG_ENABLE changes.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Register the HPET as a sysbus device and create it that way. As it can
route its IRQs to any ISA IRQ, we need to connect it to all 24 of them.
Once converted to qdev, we can move reset handler and vmstate
registration into its hands as well.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Properly initialize HPETTimer::tn and HPETTimer::state once during
hpet_init instead of (re-)writing them on every reset.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Setting the main counter while the HPET is enabled may not be a good
idea of the guest, but it is supported and should, thus, not spam the
host console with warnings.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This moves the private HPET structures into the C module, simplifies
some helper functions and fixes most coding style issues (biggest chunk
was improper switch-case indention). No functional changes.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: NJuan Quintela <quintela@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Also prevent out-of-bounds write access to the timers but don't spam the
host console if it triggers.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Only match on true dir variable assignments, avoid generating garbage
due to the "# Configured with: ..." line which may contain "*dir=" as
well.
Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

OS specific files are not target dependent, so they can be compiled
once for all targets.
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move handling to change process name to POSIX specific files
plus add a better error message to cover the case where the
feature isn't supported.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move line-buffering setup to OS specific files.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

os_change_process_uid() and os_change_root() are now only called
from os-posix.c, so no need to keep win32 stubs for them.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move daemonize handling from vl.c to OS specific files. Provide dummy
stubs for Win32.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move chroot handling to OS specific files.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move code to handle runas, ie. change of user id of QEMU process
to OS specific files and provide dummy stub for Win32.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Introduce OS specific cmdline argument handling by calling
os_parse_cmd_args() at the end of switch() statement. Move option
enum to qemu-options.h and have it included from os-posix.c and
os-win32.c in addition to vl.c.

In addition move SMB argument to os-posix.c
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Rename qemu-options.h to qemu-options.def as it is not a header file
for general use and this leaves space for a proper qemu-options.h
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This moves the win32 and POSIX versions of find_datadir() to OS
specific files, and removes some #ifdef clutter from vl.c
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move main signal handler setup to os specific files.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Rename os_setup_signal_handling() to os_setup_early_signal_handling()
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move win32 early signal handling setup to os_setup_signal_handling()
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Introcuce os-posix.c and move posix specific signal handling
there.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Move host_main_loop_wait() to OS specific files. Create
qemu-os-posix.h and provide empty inline for the POSIX case.
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

This introduces os-win32.c. It is meant to carry win32 specific
functions thata are not relevant for all of QEMU as well as win32
versions of various pieces like signal handling etc.

Move win32 polling handler helper functions from vl.c to os-win32.c
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

Create qemu-os-win32.h for WIN32 specific declarations. Move polling
handling declaration into this file from sysemu.h
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

vl.c: netinet/in.h is already included once above for the
Signed-off-by: NJes Sorensen <Jes.Sorensen@redhat.com>
Acked-by: NAndreas Faerber <afaerber@opensolaris.org>
Acked-by: NJuan Quintela <quintela@redhat.com>
Acked-by: NRichard Henderson <rth@redhat.com>
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>

When combining multiple values as part of a NEON array load, do explcit
shift/or rather than using gen_bfi.  This voids redundant mask
operations.
Signed-off-by: NPaul Brook <paul@codesourcery.com>

Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Force -m31/-m64 based on s390/s390x target.

Force -march=z990.  The TCG backend will always require the
long-displacement facility, so the compiler may as well make
use of that as well.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

The default placement of the application at 0x80000000 is fine,
and will avoid the default placement for most other guests.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

There's no _llseek on s390x either.  Replace the existing
test for __x86_64__ with a functional test for __NR_llseek.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>

This allows the use of direct calls to the helpers,
and a direct branch back to the epilogue.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>