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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The RTC emulation does not set the IRQ flags independent of the IRQ enable bits.
The original MC146818A datasheet from 1984 notes:
"flag bits in Register C [...] are set independent of the
state of the corresponding enable bits in Register B"
Similar sections can be found in newer documentation e.g. in rtc82885.
Qemu and Bochs set the IRQ flags only if they are enabled,
which breaks drivers polling on them.
The following patch corrects this for the update-ended-flag in Qemu only.
It does not fix the handling of the other flags.
Signed-off-by: Bernhard Kauer <kauer@tudos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When two AIO requests write to the same cluster, and this cluster is
unallocated, currently both requests allocate a new cluster and the second one
merges the first one when it is completed. This means an cluster allocation, a
read and a cluster deallocation which cause some overhead. If we simply let the
second request wait until the first one is done, we improve overall performance
with AIO requests (specifially, qcow2/virtio combinations).
This patch maintains a list of in-flight requests that have allocated new
clusters. A second request touching the same cluster is limited so that it
either doesn't touch the allocation of the first request (so it can have a
non-overlapping allocation) or it waits for the first request to complete.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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* Add missing include for struct timeval.
* Replace non-portable strsep by local qemu_strsep.
* Use POSIX basename by including libgen.h.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The extlh instruction on Alpha currently doesn't work properly.
It's a combination of a cut/paste bug (16 where it should be 32) as well
as a "shift by 64" bug.
Signed-off-by: Vince Weaver <vince@csl.cornell.edu>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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t0, t1 must be 64 bit values, not 32 bit.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Ensure that packets enqueued for delayed delivery are dequeued in FIFO
order. At least one simplistic guest TCP/IP stack became unhappy due to
sporadically reordered packet streams.
At this chance, switch the send queue implementation to TAILQ.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The logic of Zilog makes channel B the first device and channel A the
second one.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Backport from master:
Recent versions of the Linux kernel will not preempt CPU-intensive
tasks unless the clock used by sched_clock() works. On -M versatilepb
that's the 24MHz timer in the system controller. It's a very simple
timer, so implement it.
Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Don't call curses_resize() at the end of curses_display_init() as height
and width are not yet defined. It will be called later by code from
vl.c.
This save 250MB of memory when using -curses.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The error message for an unknown network device given to
monitor command set_link looks better with a terminating
linefeed.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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state leads to confusion if new variables are added.
Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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password; this should set or turn off VNC authentication as well.
Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When trying to do detached migration with exec, I found that
the monitor wouldn't always return in a timely manner. I
tracked this down to exec_start_outgoing_migration. It
appeared we were setting the fd to NONBLOCK'ing, but in
point of fact we weren't.
This bugfix should also go onto the stable 0.10 branch
Signed-off-by: Chris Lalancette <clalance@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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If the user does not want autostart, they can specify -S.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Hi all,
currently the vga screen_dump code doesn't use the DisplayState
interface properly and tries to replace it temporarily while taking the
screenshot.
A better approach is to register a DisplayChangeListener, call
vga_hw_update, and finally write the ppm in the next call from dpy_update.
Testing is appreciated.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Hello,
currently when a 32 bpp cursor gets defined the result is all-black in
the areas that are not transparent (you'll get a 32 bpp cursor if you
use my previous patch to allow vmware_vga to use a 32 bpp framebuffer).
This is because the switch in sdl.c lacks a 32 bpp case.
The thing I am unsure about though is which byte is the unused one and
should be skipped, the first or the last - for the black-and-white
cursors I tested it doesn't make a difference...
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Hello,
for what I can tell, there is no way for vmware_vga to work correctly
right now. It assumes that the framebuffer bits-per-pixel and the one
from the DisplaySurface are identical (it uses directly the VRAM from
vga.c), but it always assumes 3 bytes per pixel, which is never possible
with the current version of DisplaySurface.
Attached patch fixes that by using ds_get_bits_per_pixel.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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commit 93c8cfd9e67a62711b86f4c93747566885eb7928
Author: Gleb Natapov <gleb@redhat.com>
Date: Sun Aug 2 11:36:47 2009 +0300
make windows notice media change
Broke save/restore by loading a new field but not saving it.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Depending on what glibc/kernel headers you are compiling against,
PR_SET_NAME may or may not be defined. Do the right thing if
PR_SET_NAME isn't defined and skip setting the process name.
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Windows seems to be very stupid about cdrom media change. It polls
cdrom status and if status goes ready->media not present->ready
it assumes that media was changed. If "media not present" step doesn't
happen even if "medium may have changed" was seen it assumes media
haven't changed. Fake "media not present" step.
Filip Navara did a great job debugging this issue in Windows and this is
what he found out:
BINGO! ... The media present notifications were broken ever since
Windows 2000 it seems. The media change is detected properly and it's
passed to ClassSetMediaChangeState function which in turn calls
ClasspInternalSetMediaChangeState. This function is responsible for
changing some internal state of the device object and sending the PnP
events which later result in application notifications. It has this
tiny bit of code (not copied byte for byte):
if (oldMediaState == NewState) {
// Media is in the same state it was before.
return;
}
so the end result is that for the case of UNIT NEEDS ATTENTION /
MEDIUM MAY HAVE CHANGED without NOT READY in-between is really broken.
It results in the internal media change counter incremented, so the
media contents are re-read when necessary, instead of relying on the
cache, but the notifications to applications are never sent.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Commit 751c6a17042b5d011013d6963c0505d671cf708e changed the monitor's
'commit' command to this behavior:
1. Any string you type as argument will cause do_commit() to
call bdrv_commit() to all devices
2. If you enter a device name, it will be the only one ignored
by do_commit() :)
The fix is to call bdrv_commit() to the specified device only and
ignore the others (when 'all' is not specified).
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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do_set_link() returns int, but Monitor handler functions should
always return void.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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- One type 4 table is required per cpu. Add a check for this.
- Fix check for smbios file.
Changes from v1:
- static designation of smbios_validate_table, and remove whitespace
Signed-off-by: Beth Kon <eak@us.ibm.com>
--
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Hi all,
currently vga always resizes the screen when vga_hw_invalidate is called
while this is not required and all the other graphic emulators don't.
This patch fixes it, making vga invalidate behaviour consistent with the
other emulated devices.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Hi all,
this patch fixes the sdl window resize event handler so that it doesn't
require the emulated graphic card (or console.c) to call
qemu_console_resize.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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The printf command takes an octal value after \, so we have to convert
our decimal representation to octal first and then write it.
This unbreaks extboot signing. Multiboot wasn't affected yet because
the checksum was < 8.
Spotted and first patch by Glauber Costa <glommer@redhat.com>.
Printf idea by Paolo Bonzini <bonzini@gnu.org>.
Signed-off-by: Alexander Graf <agraf@suse.de>
CC: Glauber Costa <glommer@redhat.com>
CC: Paolo Bonzini <bonzini@gnu.org>
CC: Jan Ondrej <ondrejj@salstar.sk>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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The old code resulted in wrong escape sequences:
#define CONFIG_QEMU_SHAREDIR "c:\Program Files\Qemu"
gcc warnings:
vl.c:5708:20: warning: unknown escape sequence '\P'
vl.c:5708:20: warning: unknown escape sequence '\Q'
Windows can handle slash (/) path separators,
and QEMU already adds directories using slash,
so there is no need to fight with the correct number
of backslashes.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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this patch fixes an issue in symfind.
Assume you have the following symbols:
Address Size
0045bca0 00000080 T s0
0045bd20 00000112 T s1
You'll notice that s1 is s0 + size.
So the current symfind will find that address 0045bd20 belongs to s0
instead of s1.
Laurent
Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Fix toplevel option rom makefile rules.
Signed-off-by: Paul Brook <paul@codesourcery.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Read of interrupt register should clear it and also sequence step and status.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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If translation block is interrupted by e.g. mmu exception
we need to compute conditional flags for inclusion into
saved cpu state. Otherwise after return from trap
conditional instructions would use stale psr/xcc data.
Signed-off-by: igor.v.kovalenko@gmail.com
--
Kind regards,
Igor V. Kovalenko
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Once again, the emulation of the EERD and ICS registers in e1000.c is
incorrect. Nobody has noticed this before because none of the Intel-written
e1000 drivers use these registers, and all of the independently written open
source drivers copy Intel's example, so they don't use them either.
Regardless, these registers are documented in the programmer's manuals, and
their emulated behavior doesn't match the verified behavior of real hardware,
so any software that does use them doesn't function correctly.
-Bill
Signed-off-by: Bill Paul <wpaul@windriver.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When a VM state change handler changes VM state, other VM state change
handlers can see the state transitions out of order.
bmdma_map(), scsi_disk_init() and virtio_blk_init() install VM state
change handlers to restart DMA. These handlers can vm_stop() by
running into a write error on a drive with werror=stop. This throws
the VM state change handler callback into disarray. Here's an example
case I observed:
0. The virtual IDE drive goes south. All future writes return errors.
1. Something encounters a write error, and duly stops the VM with
vm_stop().
2. vm_stop() calls vm_state_notify(0).
3. vm_state_notify() runs the callbacks in list vm_change_state_head.
It contains ide_dma_restart_cb() installed by bmdma_map(). It also
contains audio_vm_change_state_handler() installed by audio_init().
4. audio_vm_change_state_handler() stops audio stuff.
5. User continues VM with monitor command "c". This runs vm_start().
6. vm_start() calls vm_state_notify(1).
7. vm_state_notify() runs the callbacks in vm_change_state_head.
8. ide_dma_restart_cb() happens to come first. It does its work, runs
into a write error, and duly stops the VM with vm_stop().
9. vm_stop() runs vm_state_notify(0).
10. vm_state_notify() runs the callbacks in vm_change_state_head.
11. audio_vm_change_state_handler() stops audio stuff. Which isn't
running.
12. vm_stop() finishes, ide_dma_restart_cb() finishes, step 7's
vm_state_notify() resumes running handlers.
13. audio_vm_change_state_handler() starts audio stuff. Oopsie.
Fix this by moving the actual write from each VM state change handler
into a new bottom half (suggested by Gleb Natapov).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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When sending a copyrect command to the vnc client, we must also update
the local server surface. Otherwise the server's and the client's idea
of the screen content run out of sync and screen updates don't work
correctly.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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These are now unused.
However, perhaps the idea is that when we add -device, they will be
useful? In that case, we should add virtio-net-pci-0-10 too.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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We have the pc-0.10 machine type now which does exactly the same
thing.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Since migration returns right away, starting the VM right
after calling qemu_start_incoming_migration is wrong even
if -S is not passed. We have to do this after migration
has completed.
Cc: Glauber Costa <glommer@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Conditional moves off fp condition codes were using the result of
get_fp_bit to isolate and test the relevant condition code. However,
get_fp_bit returns the bit number of the condition code, not a
bitmask. (Compare the use of get_fp_bit in gen_compute_branch1, for
instance.)
Fixed by shifting a bitmask into place using the result of get_fp_bit in
the relevant functions (gen_mov{ci,cf_s,cf_d,cf_ps}).
Signed-off-by: Nathan Froyd <froydnj@codesourcery.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Otherwise, -lrt doesn't get added to the softmmu build.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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