Some of the timer devices may behave differently from what ptimer
provides. Introduce ptimer policy feature that allows ptimer users to
change default and wrong timer behaviour, for example to continuously
trigger periodic timer when load value is equal to "0".
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 994cd608ec392da6e58f0643800dda595edb9d97.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Running with counter / period = 0 is treated as a error case, printing error
message claiming that timer has been disabled. However, timer is only marked
as disabled, keeping to tick till expired and triggering after being claimed
as disabled. Stop the QEMU timer to avoid confusion.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Message-id: 1e9bae4fae3c36430d7c28b0f486a0c71aff7eb3.1473252818.git.digetx@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
If the RAM size is invalid, the memory controller will use a default
value.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-15-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Configure the size of the RAM of the SOC using a property to propagate
the value down to the memory controller from the board level.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-14-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Also change the default value used in case of an error. The minimum
size is a bit severe, so let's just use an average RAM size.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1473438177-26079-13-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
There is no need to do this at each reset as the RAM size will not
change.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-12-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-11-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ast2500 eval board has a hardware strapping register value of
0xF100C2E6 which we use for a definition of AST2500_EVB_HW_STRAP1
below.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-10-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Based on previous work done by Andrew Jeffery <andrew@aj.id.au>.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-9-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This gives some explanation behind the magic number 0x120CE416.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-8-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
aspeed_board_init() now uses a board identifier to customize some values
specific to the board.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-7-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is mostly a name replacement to prepare ground for other SoCs
specificities. It also adds a TypeInfo struct for the palmetto-bmc
board with a custom initialization for the same reason.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-6-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We plan to add more Aspeed boards to this file. There are no changes
in the code.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-5-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let's define an object class for each Aspeed SoC we support. A
AspeedSoCInfo struct gathers the SoC specifications which can later be
used by an instance of the class or by a board using the SoC.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1473438177-26079-4-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This is a name replacement to prepare ground for other SoCs.
Let's also remove the AST2400_SMC_BASE definition from the address
space mappings, as it is not used. This controller was removed from
the Aspeed SoC AST2500, so this provides us a better common base for
the address space mapping on both SoCs.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-3-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let's prepare for new Aspeed SoCs and rename the ast2400 file to a
more generic one. There are no changes in the code apart from the
header file include.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473438177-26079-2-git-send-email-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the "cortex-a7" CPU with features and registers matching the Cortex-A7
MPCore Technical Reference Manual and the Cortex-A7 Floating-Point Unit
Technical Reference Manual. The A7 is very similar to the A15.
Signed-off-by: Andrey Yurovsky <yurovsky@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1473185229-4597-1-git-send-email-yurovsky@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160915' into staging
linux-user changes since 2.7 release
# gpg: Signature made Thu 22 Sep 2016 13:09:17 BST
# gpg: using RSA key 0xB44890DEDE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg: aka "Riku Voipio <riku.voipio@linaro.org>"
# Primary key fingerprint: FF82 03C8 C391 98AE 0581 41EF B448 90DE DE3C 9BC0
* remotes/riku/tags/pull-linux-user-20160915: (26 commits)
linux-user: fix TARGET_NR_select
linux-user: Fix incorrect offset of tuc_stack in ARM do_sigframe_return_v2
linux-user: Sanity check clone flags
linux-user: Remove unnecessary nptl_flags variable from do_fork()
linux-user: Implement force_sigsegv() via force_sig()
linux-user: SIGSEGV from sigreturn need not be fatal
linux-user: ARM: Give SIGSEGV if signal frame setup fails
linux-user: SIGSEGV on signal entry need not be fatal
linux-user: Pass si_type information to queue_signal() explicitly
linux-user: Recheck for pending synchronous signals too
linux-user: ppc64: set MSR_CM bit for BookE 2.06 MMU
linux-user: Use correct target SHMLBA in shmat()
linux-user: Use glib malloc functions in load_symbols()
linux-user: Check dump_write() return in elf_core_dump()
linux-user: Fix error handling in flatload.c target_pread()
linux-user: Fix incorrect use of host errno in do_ioctl_dm()
linux-user: Check lock_user() return value for NULL
linux-user: Pass missing MAP_ANONYMOUS to target_mmap() call
linux-user: report signals being taken in strace output
linux-user: Range check the nfds argument to ppoll syscall
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
TARGET_NR_select can have three different implementations:
1- to always return -ENOSYS
microblaze, ppc, ppc64
-> TARGET_WANT_NI_OLD_SELECT
2- to take parameters from a structure pointed by arg1
(kernel sys_old_select)
i386, arm, m68k
-> TARGET_WANT_OLD_SYS_SELECT
3- to take parameters from arg[1-5]
(kernel sys_select)
x86_64, alpha, s390x,
cris, sparc, sparc64
Some (new) architectures don't define NR_select,
4- but only NR__newselect with sys_select:
mips, mips64, sh
5- don't define NR__newselect, and use pselect6 syscall:
aarch64, openrisc, tilegx, unicore32
Reported-by: Timothy Pearson <tpearson@raptorengineering.com>
Reported-by: Allan Wirth <awirth@akamai.com>
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
struct target_ucontext_v2 is not at the begining of the signal frame,
therefore do_sigaltstack was being passed bogus arguments.
As the offset depends on the type of signal frame fixed by passing in the
beginning of the context from do_sigreturn_v2 and do_rt_sigreturn_v2.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
We currently make no checks on the flags passed to the clone syscall,
which means we will not fail clone attempts which ask for features
that we can't implement. Add sanity checking of the flags to clone
(which we were already doing in the "this is a fork" path, but not
for the "this is a new thread" path), tidy up the checking in
the fork path to match it, and check that the fork case isn't trying
to specify a custom termination signal.
This is helpful in causing some LTP test cases to fail cleanly
rather than behaving bizarrely when we let the clone succeed
but didn't provide the semantics requested by the flags.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The 'nptl_flags' variable in do_fork() is set to a copy of
'flags', and then the CLONE_NPTL_FLAGS are cleared out of 'flags'.
However the only effect of this is that the later check on
"if (flags & CLONE_PARENT_SETTID)" is never true. Since we
will already have done the setting of parent_tidptr in clone_func()
in the child thread, we don't need to do it again.
Delete the dead if() and the clearing of CLONE_NPTL_FLAGS from
'flags', and then use 'flags' where we were previously using
'nptl_flags', so we can delete the unnecessary variable.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Now that we have a force_sig() with the semantics we need,
we can implement force_sigsegv() to call it rather than
open-coding the call to queue_signal().
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
If the sigreturn syscall fails to read memory then this causes a
SIGSEGV, but this is not necessarily a fatal signal -- the guest
process can catch it.
We don't implement this correctly because the behaviour of QEMU's
force_sig() function has drifted away from the kernel function of the
same name -- ours now does "always do a guest core dump and abort
execution", whereas the kernel version simply forces the guest to
take a signal, which may or may not eventually cause a core dump.
Rename our force_sig() to dump_core_and_abort(), and provide a
force_sig() which acts more like the kernel version as the sigreturn
implementations expect it to. Since force_sig() now returns, we must
update all the callsites to return -TARGET_QEMU_ESIGRETURN so that
the main loop doesn't change the guest registers before the signal
handler is invoked.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The 32-bit ARM signal frame setup code was just bailing out
on error returns from lock_user_struct calls, without
generating the SIGSEGV that should happen here. Wire up
error return codes to call force_sigsegv().
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
A failed write to memory trying to set up the signal frame
should trigger a SIGSEGV, but this need not be fatal: the
guest has a chance to catch it. Implement this via a force_sigsegv()
function with the same behaviour as the kernel function of that
name: make sure that we don't try to re-take a failed SIGSEGV,
and force a synchronous signal.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Instead of assuming in queue_signal() that all callers are passing
a siginfo structure which uses the _sifields._sigfault part of the
union (and thus a si_type of QEMU_SI_FAULT), make callers pass
the si_type they require in as an argument.
[RV adjusted to apply]
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
In process_pending_signals() we restart the scan of possible
pending signals after calling handle_pending_signal() in
case some other signal has been generated. This rescan
should also include a check for a new synchronous signal
since those are in fact the only kind of new signal that
the signal frame setup process might produce.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
64 bit user mode doesn't work for the e5500 core because the MSR_CM bit is
not set which enables the 64 bit mode for this MMU model. Memory addresses
are truncated to 32 bit, which results in "Invalid data memory access"
error messages. Fix it by setting the MSR_CM bit for this MMU model.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The shmat() handling needs to do target-specific handling
of the attach address for shmat():
* if the SHM_RND flag is passed, the address is rounded
down to a SHMLBA boundary
* if SHM_RND is not passed, then the call is failed EINVAL
if the address is not a multiple of SHMLBA
Since SHMLBA is target-specific, we need to do this
checking and rounding in QEMU and can't leave it up to the
host syscall.
Allow targets to define TARGET_FORCE_SHMLBA and provide
a target_shmlba() function if appropriate, and update
do_shmat() to honour them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Switch to using the glib malloc functions in load_symbols();
this deals with a Coverity complaint about possible
integer overflow calculating the allocation size with
'nsyms * sizeof(*syms)'.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
One of the calls to dump_write() in elf_core_dump() was missing
a check for failure (spotted by Coverity). Add the check to
bring it into line with the other calls from this function.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The flatload.c target_pread() function is supposed to return
0 on success or negative host errnos; however it wasn't
checking lock_user() for failure or returning the errno from
the pread() call. Fix these problems (the first of which is
noted by Coverity).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
do_ioctl_dm() should return target errno values, not host ones;
correct an accidental use of a host errno in an error path.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
lock_user() can return NULL, which typically means the syscall
should fail with EFAULT. Add checks in various places where
Coverity spotted that we were missing them.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
A target_mmap() call in load_elf_binary() was missing the MAP_ANONYMOUS
flag. (Spotted by Coverity, because target_mmap() will try to use
-1 as the filedescriptor in this case.)
This has never been noticed because the code in question is for
handling ancient SVr4 iBCS2 binaries.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Native strace reports when the process being traced takes a signal:
--- SIGSEGV {si_signo=SIGSEGV, si_code=SI_KERNEL, si_addr=0} ---
Report something similar when QEMU is doing its internal strace of
the guest process and is about to deliver it a signal.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Do an initial range check on the ppoll syscall's nfds argument,
to avoid possible overflow in the calculation of the lock_user()
size argument. The host kernel will later apply the rather lower
limit based on RLIMIT_NOFILE as appropriate.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The kernel checks that the maxevents parameter to epoll_wait
is non-negative and not larger than EP_MAX_EVENTS. Add this
check to our implementation, so that:
* we fail these cases EINVAL rather than EFAULT
* we don't pass negative or overflowing values to the
lock_user() size calculation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The linux utimensat syscall differs in semantics from the
libc function because the syscall combines the features
of utimensat() and futimens(). Rather than trying to
split these apart in order to call the two libc functions
which then call the same underlying syscall, just always
directly make the host syscall. This fixes bugs in some
of the corner cases which should return errors from the
syscall but which we were incorrectly directing to futimens().
This doesn't reduce the set of hosts that our syscall
implementation will work on, because if the direct syscall
fails ENOSYS then the libc functions would also fail ENOSYS.
(The system call has been in the kernel since 2.6.22 anyway.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Implement the FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls, as used
by chattr.
Note that the type information encoded in these ioctl numbers
is at odds with the actual type the kernel accesses, as discussed
in http://thread.gmane.org/gmane.linux.file-systems/80164.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The POSIX standard mandates that for a connected socket recvfrom()
must ignore the msg_name and msg_namelen fields. This is awkward
for QEMU because we will attempt to copy them from guest address
space. Handle this by not immediately returning a TARGET_EFAULT
if the copy failed, but instead passing a known-bad address
to the host kernel, which can then return EFAULT or ignore the
value appropriately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
The sendmsg and recvmsg syscalls use a different errno to indicate
an overlarge iovec length from readv and writev. Handle this
special case in do_sendrcvmsg_locked() to avoid getting the
default errno returned by lock_iovec().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
In the kernel the length of an iovec is generally handled as
an unsigned long, not an integer; fix the parameter to
lock_iovec() accordingly.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
getrusage is used in a number of places throughout the qemu codebase
(notably, in crypto/pbkdf.c). Without this syscall being whitelisted,
qemu ends up getting killed by the kernel whenever you try to connect to
a VNC console.
Signed-off-by: Brian Rak <brak@gameservers.com>
Acked-by: Eduardo Otubo <eduardo.otubo@profitbricks.com>
Source disk is created and filled with test data before each test case.
Instead initialize it once for the whole unit.
Test disk filling patterns are merged into one pattern.
Also TestSetSpeed used different image_len for source and target (by
mistake) - this is automatically fixed here.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 1470748523-13856-1-git-send-email-vsementsov@virtuozzo.com
Reviewed-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
The 'block-commit' command has a 'top' parameter to specify the
topmost node from which the data is going to be copied.
[E] <- [D] <- [C] <- [B] <- [A]
In this case if [C] is the top node then this is the result:
[E] <- [B] <- [A]
[B] must be modified so its backing image string points to [E] instead
of [C]. commit_start() takes care of reopening [B] in read-write
mode, and commit_complete() puts it back in read-only mode once the
operation has finished.
In order to find [B] (the overlay node) we look for the node that has
[C] (the top node) as its backing image. However in commit_complete()
we're doing it after [C] has been removed from the chain, so [B] is
never found and remains in read-write mode.
This patch gets the overlay node before the backing chain is
manipulated.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-id: 1471836963-28548-1-git-send-email-berto@igalia.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Dmitry Osipenko
Cédric Le Goater
Andrey Yurovsky
Peter Maydell
Laurent Vivier
Timothy E Baldwin
Michael Walle
Eduardo Otubo
Vladimir Sementsov-Ogievskiy
Alberto Garcia