Paolo Bonzini [Mon, 14 Nov 2011 13:31:52 +0000 (14:31 +0100)]
scsi-block: always use SG_IO for MMC devices
CD burning messes up the state of the host page cache and host block
device. Just pass all operations down to the device, even though that
might have slightly worse performance. Everything else just is not
reliable in combination with burning.
Reported-by: Thomas Schmitt <scdbackup@gmx.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 14 Nov 2011 13:31:51 +0000 (14:31 +0100)]
scsi: pass down REQUEST SENSE to the device when there is no stored sense
This will let scsi-block/scsi-generic report progress on long
operations.
Reported-by: Thomas Schmitt <scdbackup@gmxbackup.net> Tested-by: Thomas Schmitt <scdbackup@gmxbackup.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 14 Nov 2011 13:31:50 +0000 (14:31 +0100)]
scsi: remove block descriptors from CDs
Reported-by: Thomas Schmitt <scdbackup@gmx.net> Tested-by: Thomas Schmitt <scdbackup@gmx.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 14 Nov 2011 13:31:49 +0000 (14:31 +0100)]
scsi: fix parsing of allocation length field
- several MMC commands were parsed wrong by QEMU because their allocation
length/parameter list length is placed in a non-standard position in
the CDB (i.e. it is different from most commands with the same value in
bits 5-7).
- SEND VOLUME TAG length was multiplied by 40 which is not in SMC. The
parameter list length is between 32 and 40 bytes. Same for MEDIUM SCAN
(spec found at http://ldkelley.com/SCSI2/SCSI2-16.html but not in any of
the PDFs I have here).
- READ_POSITION (SSC) conflicts with PRE_FETCH (SBC). READ_POSITION's
transfer length is not hardcoded to 20 in SSC; for PRE_FETCH cmd->xfer
should be 0. Both fixed.
- FORMAT MEDIUM (the SSC name for FORMAT UNIT) was missing. The FORMAT
UNIT command is still somewhat broken for block devices because its
parameter list length is not in the CDB. However it works for CD/DVD
drives, which mandate the length of the payload.
- fixed wrong sign-extensions for 32-bit fields (for the LBA field,
this affects disks >1 TB).
- several other SBC or SSC commands were missing or parsed wrong.
- some commands were not in the list of "write" commands.
Reported-by: Thomas Schmitt <scdbackup@gmx.net> Tested-by: Thomas Schmitt <scdbackup@gmx.net> (MMC bits only) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 14 Nov 2011 13:31:47 +0000 (14:31 +0100)]
atapi: kill MODE SENSE(6), fix MODE SENSE(10)
Mode page 2A of emulated ATAPI DVD-ROM should have page length 0x14
like SCSI CD-ROM, rather than 0x12.
Mode page length is off by 8, as it should contain the length of the
payload after the first two bytes.
MODE SENSE(6) should be thrown out of ATAPI DVD-ROM emulation. It is
not specified in the ATAPI list of MMC-2, and MMC-5 prescribes to use
MODE SENSE(10). Anyway, its implementation is wrong.
Reported-by: Thomas Schmitt <scdbackup@gmx.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Tue, 15 Nov 2011 16:36:38 +0000 (17:36 +0100)]
scsi: fix fw path
The pre-1.0 firmware path for SCSI devices already included the LUN
using the suffix argument to add_boot_device_path. I missed that when
making channel and LUN customizable. Avoid that it is included twice, and
convert the colons to commas for consistency with other kinds of devices
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
.c files include .h files, so .o depends on .h,
and the linked result depends on .o.
We got it wrong for qga rules, fix it up.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
qga/guest-agent-commands.c includes qga-qmp-commands.h,
but it was missing in its dependencies. Add it in QGALIB_GEN.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
We have a single rule generating .c and .h files,
so .h doesn't depend on .c: both depend on the
source schema.
Fix Makefile to reflect that - without this,
if .c is there and .h is missing, Makefile does
not know how to remake .h and assumes it's
a dummy target, triggering endless rebuilds.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
make clean missed the source qmp files generated
by python. Fix that.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
monitor: Fix file_completion() to check for stat() failure
stat() can fail for a file name just read with readdir(). Easiest way
to trigger is a dangling symbolic link --- look ma, no race! When it
fails, file_completion() uses sb.st_mode uninitialized. If the
directory bit happens to be set, it appends a "/" to the completed
name.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Peter Maydell [Mon, 7 Nov 2011 13:25:45 +0000 (13:25 +0000)]
hw/omap_gpio: Fix infinite recursion when doing 8/16 bit reads
Fix a long-standing bug which meant that any attempt to do an
8 or 16 bit read from the OMAP GPIO module would cause qemu to
crash due to an infinite recursion.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Juha Riihimäki [Thu, 20 Oct 2011 12:53:35 +0000 (14:53 +0200)]
hw/onenand: reject read-only drives
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Juha Riihimäki [Thu, 20 Oct 2011 12:53:34 +0000 (14:53 +0200)]
hw/nand: reject read-only drives
also gracefully fail on nand_device_init() for unsupported block
size instead of aborting.
Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Peter Maydell [Sun, 13 Nov 2011 14:18:39 +0000 (14:18 +0000)]
hw/pxa2xx.c: Fix handling of RW bits in PMCR
Fix an error in commit afd4a6522 which meant that writing a zero
to the RW bits in the PMCR wouldn't actually clear them. (Error
spotted by Andrzej Zaborowski.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
Max Filippov [Thu, 10 Nov 2011 11:38:42 +0000 (15:38 +0400)]
vl.c: prohibit simultaneous use of -icount with kvm or xen
With -icount, The vm_clock is updated with help from TCG (it counts
instructions at 2^ICOUNT ns/instructions). With KVM, the instruction
count is not available so KVM cannot provide this help.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Fri, 11 Nov 2011 13:30:15 +0000 (13:30 +0000)]
hw/arm_timer.c: Fix bounds check for Integrator timer accesses
There are only three counter/timers on the integrator board:
correct the bounds check to avoid an array overrun. (Spotted
by Coverity, see bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 9 Nov 2011 20:46:35 +0000 (20:46 +0000)]
hw/pxa2xx.c: Fix handling of R/WC bits in PMCR
Fix a bug in handling the write-one-to-clear bits in the PMCR
which meant that we would always clear the bit even if the
value written was a zero. Spotted by Coverity (see bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 9 Nov 2011 20:04:54 +0000 (20:04 +0000)]
hw/pl061: Remove pointless comparison of array to null
Remove a pointless comparison of an array to null. (There is
no need to check whether s->out[i] is non-null as qemu_set_irq
will do that for us.) Spotted by Coverity (see bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 9 Nov 2011 19:34:28 +0000 (19:34 +0000)]
hw/tc58128.c: Remove unnecessary check for g_malloc failure
Remove a check for g_malloc failing: this never happens.
Also use g_malloc rather than g_malloc0 as we immediately
memset the entire region and so zero-initialising it is pointless.
Spotted by Coverity (see bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 9 Nov 2011 19:22:11 +0000 (19:22 +0000)]
linux-user/elfload.c: Don't memset(NULL..) if malloc() failed
If a malloc() in copy_elf_strings() failed we would call memset()
before the "did malloc fail?" check. Fix this by moving to the
glib alloc/free routines for this memory so we can use g_try_malloc0
rather than having a separate memset(). Spotted by Coverity (see
bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Wed, 9 Nov 2011 18:45:38 +0000 (18:45 +0000)]
hw/omap_intc.c: Avoid crash on access to nonexistent banked registers
Avoid a crash due to null pointer dereference if a guest attempts
to access banked registers for a nonexistent bank. Spotted by
Coverity (see bug 887883).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Juan Quintela [Wed, 9 Nov 2011 20:29:01 +0000 (21:29 +0100)]
migration: fix detached migration with fd
Migration with fd uses s->mon to pass the fd. But we only assign the
s->mon for !detached migration. Fix it. Once there add a comment
indicating that s->mon has two uses.
Pavel Borzenkov [Thu, 10 Nov 2011 20:26:59 +0000 (00:26 +0400)]
configure: Do not use 'sed -i'
'sed -i' is not defined in POSIX. It doesn't work on Mac OS X the way
it's used in configure (without suffix argument). This patch implements
Peter Maydell's idea of xattr.h detection.
Cc: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Pavel Borzenkov <pavel.borzenkov@gmail.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Kevin Wolf [Thu, 10 Nov 2011 17:13:59 +0000 (18:13 +0100)]
block: Make cache=unsafe flush to the OS
cache=unsafe completely ignored bdrv_flush, because flushing the host disk
costs a lot of performance. However, this means that qcow2 images (and
potentially any other format) can lose data even after the guest has issued a
flush if the qemu process crashes/is killed. In case of a host crash, data loss
is certainly expected with cache=unsafe, but if just the qemu process dies this
is a bit too unsafe.
Now that we have two separate flush functions, we can choose to flush
everythign to the OS, but don't enforce that it's physically written to the
disk.
Kevin Wolf [Thu, 10 Nov 2011 17:10:11 +0000 (18:10 +0100)]
block: Introduce bdrv_co_flush_to_os
qcow2 has a writeback metadata cache, so flushing a qcow2 image actually
consists of writing back that cache to the protocol and only then flushes the
protocol in order to get everything stable on disk.
This introduces a separate bdrv_co_flush_to_os to reflect the split.
Kevin Wolf [Thu, 10 Nov 2011 16:25:44 +0000 (17:25 +0100)]
block: Rename bdrv_co_flush to bdrv_co_flush_to_disk
There are two different types of flush that you can do: Flushing one level up
to the OS (i.e. writing data to the host page cache) or flushing it all the way
down to the disk. The existing functions flush to the disk, reflect this in the
function name.
Peter Maydell [Wed, 9 Nov 2011 21:59:50 +0000 (21:59 +0000)]
hw/pc.c: Fix use-while-uninitialized of fd_type[]
Fix a use-while-uninitialized of the fd_type[] array (introduced
in commit 34d4260e1, noticed by Coverity). This is more theoretical
than practical, since it's quite hard to get here with floppy==NULL
(the qdev_try_create() of the isa-fdc device has to fail).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Charles Arnold [Wed, 9 Nov 2011 16:32:25 +0000 (09:32 -0700)]
block: Fix vpc initialization of the Dynamic Disk Header
The Data Offset field in the Dynamic Disk Header is an 8 byte field.
Although the specification (2006-10-11) gives an example of initializing
only the first 4 bytes, images generated by Microsoft on Windows initialize
all 8 bytes.
Failure to initialize all 8 bytes results in errors from utilities
like Citrix's vhd-util which checks specifically for the proper Data
Offset field initialization.
Signed-off-by: Charles Arnold <carnold@suse.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Fri, 4 Nov 2011 14:51:24 +0000 (15:51 +0100)]
qemu-nbd: open the block device after starting the client thread
This is cleaner, because we do not need to close the block device when
there is an error opening /dev/nbdX. It was done this way only to
print errors before daemonizing.
At the same time, use atexit to ensure that the block device is closed
whenever we exit.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Fri, 4 Nov 2011 14:51:23 +0000 (15:51 +0100)]
qemu-nbd: fix socket creation race
Now that the client and server are in the same process, there is
no need to race on the creation of the socket. We can open the
listening socket before starting the client thread.
This avoids that "qemu-nbd -v -c" prints this once before connecting
successfully to the socket:
connect(unix:/var/lock/qemu-nbd-nbd0): No such file or directory
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Fri, 4 Nov 2011 14:51:22 +0000 (15:51 +0100)]
qemu-nbd: print error messages from the daemon through a pipe
In order to get nice error messages, keep the qemu-nbd process running
until before issuing NBD_DO_IT and connected to the daemon with a pipe.
This lets the qemu-nbd process relay error messages from the daemon and
exit with a nonzero status if appropriate.
Suggested-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Fri, 4 Nov 2011 14:51:21 +0000 (15:51 +0100)]
qemu-nbd: move client to a thread
This avoids that qemu-nbd uses both forking and threads, which do
not behave well together.
qemu-nbd is already Unix only, and there is no qemu_thread_join,
so for now use pthreads.
Since the parent and child no longer have separate file descriptors,
we can open the NBD device before daemonizing, instead of checking
with access(2) and restricting the open to the client only.
Reported-by: Pierre Riteau <pierre.riteau@irisa.fr> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Fri, 4 Nov 2011 14:51:19 +0000 (15:51 +0100)]
qemu-nbd: trap SIGTERM
The client process right now uses SIGTERM to interrupt the server side.
This does not affect the exit status of "qemu-nbd -v -c" because the
server is a child process. This will change when both sides will be
in the same process, and anyway cleaning up things nicely upon SIGTERM
is good practice.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Mon, 7 Nov 2011 16:50:13 +0000 (17:50 +0100)]
block: add eject request callback
Recent versions of udev always keep the tray locked so that the kernel
can observe "eject request" events (aka tray button presses) even on
discs that aren't mounted. Add support for these events in the ATAPI
and SCSI cd drive device models.
To let management cope with the behavior of udev, an event should also
be added for "tray opened/closed". This way, after issuing an "eject"
command, management can poll until the guests actually reacts to the
command. They can then issue the "change" command after the tray has been
opened, or try with "eject -f" after a (configurable?) timeout. However,
with this patch and the corresponding support in the device models,
at least it is possible to do a manual two-step eject+change sequence.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Max Filippov [Wed, 9 Nov 2011 01:18:09 +0000 (05:18 +0400)]
hpet: fix infinite loop in qemu_run_timers with -icount enabled
hpet_timer timer callback rearms itself based on difference between
current HPET tick counter and comparator value. Difference calculated by
the hpet_calculate_diff function is limited to non-negative values.
cur_tick is calculated via hpet_get_ticks that uses qemu_get_clock_ns(vm_clock).
With -icount enabled vm_clock doesn't advance during qemu_run_timers
loop thus once difference is zero, qemu_run_timers loops forever
handling hpet_timer.
Limit hpet_calculate_diff results to positive only values to avoid that
infinite loop.
This fixes the following qemu-system-x86_64 hang when it reaches
timer_irq_works() in the linux bootup:
Peter Maydell [Wed, 9 Nov 2011 17:20:06 +0000 (17:20 +0000)]
hw/omap_dss.c: Fix !-vs-~ bug in handling DISPC_CONTROL
Fix a bug revealed by a coverity scan (see bug 887883) which meant
that we would never print the warning about unpredictable behaviour
if a nonexistent overlay is enabled.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Avi Kivity [Wed, 9 Nov 2011 13:44:36 +0000 (15:44 +0200)]
i386: derive '-cpu host' from KVM_GET_SUPPORTED_CPUID
The fact that a host cpu supports a feature doesn't mean that QEMU and KVM
will also support it, yet -cpuid host brings host features wholesale.
We need to whitelist each feature separately to make sure we support it.
This patch adds KVM whitelisting (by simply using KVM_GET_SUPPORTED_CPUID
instead of the CPUID instruction).
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Fabien Chouteau [Mon, 7 Nov 2011 14:36:14 +0000 (15:36 +0100)]
Replace WriteFileEx with WriteFile in qemu_create_pidfile
The function that writes pidfile for win32 uses WriteFileEx which is an
asynchronous IO function. The arguments given to WriteFileEx are allocated on
the stack and one of them is "in out". When the IO operation is actually
executed the calling function has already returned, so the arguments are no
longer allocated or allocated to another frame.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Fabien Chouteau <chouteau@adacore.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
vga_putcharxy()'s underline code sets font_data to 0xffff instead of
0xff. vga_putcharxy() then reads dmask16[0xffff >> 4] and
dmask4[0xffff >> 6]. In practice, these out-of-bounds subscripts
"only" put a few crap bits into the display surface.
For 32 bit pixels, there's no array access. font_data's extra bits go
straight into the display surface.
Broken when commit 6d6f7c28 implemented underline.
Spotted by Coverity.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Gleb Natapov [Sun, 6 Nov 2011 16:00:22 +0000 (18:00 +0200)]
qemu_timedate_diff() shouldn't modify its argument.
The caller of qemu_timedate_diff() does not expect that tm it passes to
the function will be modified, but mktime() is destructive and modifies
its argument. Pass a copy of tm to it and set tm_isdst so that mktime()
will not rely on it since its value may be outdated.
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Gerd Hoffmann [Thu, 3 Nov 2011 17:21:54 +0000 (18:21 +0100)]
qxl: fix vga port initialization.
Commit 0a039dc70096b768d3810afa50ba1d214768aaf4 broke vga modes for
qxl-vga by loosing vga_ioport_read windup. qxl needs to hook into
vga port writes only and used to realize that by letting vga_init() do
the work for both reads and writes, then overwrite the write function.
That little detail was missed while doing the conversion ...
This patch fixes it. It also switch qxl vga ioport registration to
portio lists while being at it.
Cc: Hans de Goede <hdegoede@redhat.com> Acked-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Gerd Hoffmann [Mon, 7 Nov 2011 15:33:09 +0000 (16:33 +0100)]
ac97: don't override the pci subsystem id
This patch removes the code lines which set the subsystem id for the
emulated ac97 card to 8086:0000. Due to the device id being zero the
subsystem id isn't vaild anyway. With the patch applied the sound card
gets the default qemu subsystem id (1af4:1100) instead.
[ v2: old & broken id is maintained for -M pc-$oldqemuversion ]
Paolo Bonzini [Thu, 3 Nov 2011 15:00:22 +0000 (16:00 +0100)]
disable automatic loading of sgabios when -nographic
sgabios hasn't gotten a lot of coverage since it was not shipped. For 1.0,
let's disable the automatic loading of the option ROM in -nographic
mode. We can put it back for 1.1.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
readline_hist_add() moves the history entry to the end of history. It
uses memmove() to move rs->history[idx + 1..] to rs->history[idx..].
However, its size argument is off by two array elements, so it writes
one element beyond rs->history[], and reads two.
On my system, this clobbers rs->hist_entry and the hole right after
it. Since the function assigns to rs->hist_entry in time, the bug has
no ill effects for me.
Spotted by Coverity.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Rabin Vincent [Sun, 6 Nov 2011 16:01:08 +0000 (16:01 +0000)]
arm_gic: handle banked enable bits for per-cpu interrupts
The first enable set/clear register (which controls the PPIs and SGIs)
is supposed to be banked for each processor. Currently it is just
handled globally and this prevents recent SMP Linux kernels from
booting, because CPU0 stops receiving localtimer interrupts when CPU1
disables them locally.
To fix this, allow the enable bits to be enabled per-cpu. For SPIs,
always enable/disable ALL_CPU_MASK.
Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Paolo Bonzini [Fri, 4 Nov 2011 16:21:53 +0000 (17:21 +0100)]
vvfat: reorganize computation of disk geometry
First determine FAT12/16/32, then compute geometry from that for both
FDD and HDD. For 1.44MB floppies, and 2.88MB floppies using FAT16,
change to 1 sector/cluster. The default remains 2.88MB with FAT12
and 2 sectors/cluster. Both DOS and mkdosfs by default format a 2.88MB
floppy as FAT12.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Paolo Bonzini [Wed, 5 Oct 2011 07:12:06 +0000 (09:12 +0200)]
vvfat: unify and correct computation of sector count
The sector count is stored in the partition and hence must not include the
sectors before its start. At the same time, remove the useless special
casing for 1.44 MB floppies. This fixes fsck on VVFAT hard disks,
which otherwise tries to seek past the end of the disk.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
projects / qemu-upstream-4.3-testing.git / log