sdk/emulator/qemu.git
16 years agoETRAX-FS: Don't schedule DMA processing without active channels.
edgar_igl [Thu, 13 Nov 2008 21:33:08 +0000 (21:33 +0000)]
ETRAX-FS: Don't schedule DMA processing without active channels.

Avoid scheduling DMA processing when all channels are stopped or at
end-of-list.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5720 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoETRAX-FS: Fix a segfault if pflash drive not found.
edgar_igl [Thu, 13 Nov 2008 21:10:25 +0000 (21:10 +0000)]
ETRAX-FS: Fix a segfault if pflash drive not found.

drive_get_index() returns -1 if a drive isn't found; don't
use -1 to index drives_table.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5719 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agox86: fix warning without CONFIG_KVM (Mark McLoughlin)
aliguori [Thu, 13 Nov 2008 19:37:46 +0000 (19:37 +0000)]
x86: fix warning without CONFIG_KVM (Mark McLoughlin)

Warning is:

 target-i386/helper.c: In function `cpu_x86_cpuid':
 target-i386/helper.c:1373: warning: implicit declaration of function `host_cpuid'

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5718 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix CPUID ext2 features masking (Avi Kivity)
aliguori [Thu, 13 Nov 2008 19:28:04 +0000 (19:28 +0000)]
Fix CPUID ext2 features masking (Avi Kivity)

Typo. Exposes rdtscp which kills some guests.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5717 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoblock: make raw aio signaling non-blocking (Gerd Hoffman)
aliguori [Thu, 13 Nov 2008 19:23:17 +0000 (19:23 +0000)]
block: make raw aio signaling non-blocking (Gerd Hoffman)

This patch switches the read handle of the signaling pipe into
non-blocking mode.  This avoids unwanted blocking reads and also
allows to read all bytes out of the signaling pipe in case we got
signaled more that once before the handler ran.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5716 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDefine kvm_ioctl in the same way as ioctl
aliguori [Thu, 13 Nov 2008 19:21:00 +0000 (19:21 +0000)]
Define kvm_ioctl in the same way as ioctl

The third argument to ioctl is a ... which allows any value to be passed.  In
practice, glibc always treats the argument as a void *.

Do the same thing for the kvm ioctls to keep things consistent with a
traditional ioctl.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5715 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agocopyright & license for qemu_sockets.c (Gerd Hoffman)
aliguori [Thu, 13 Nov 2008 16:19:54 +0000 (16:19 +0000)]
copyright & license for qemu_sockets.c (Gerd Hoffman)

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5714 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix brown-paper-bag bugs from live-migration patch (Charles Duffy)
aliguori [Wed, 12 Nov 2008 22:29:11 +0000 (22:29 +0000)]
Fix brown-paper-bag bugs from live-migration patch (Charles Duffy)

In TCP migration, prevent an endless loop trying to retrieve error status. In
exec migration, set the close pointer in the FdMigrationState structure.

Color me embarrassed.

Signed-off-by: Charles Duffy <charles_duffy@messageone.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5713 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRename hz to hertz to keep AIX happy
malc [Wed, 12 Nov 2008 20:36:27 +0000 (20:36 +0000)]
Rename hz to hertz to keep AIX happy

The issue was first noticed/addressed by Laurent Vivier in his QEMU on
AIX patches.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5712 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRename misnamed BACK_CHAIN_OFFSET to LR_OFFSET
malc [Wed, 12 Nov 2008 20:36:24 +0000 (20:36 +0000)]
Rename misnamed BACK_CHAIN_OFFSET to LR_OFFSET

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5711 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAvoid compiler warning
malc [Wed, 12 Nov 2008 20:36:21 +0000 (20:36 +0000)]
Avoid compiler warning

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5710 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDon't use "hz" in identifiers to make AIX happy.
balrog [Wed, 12 Nov 2008 17:36:08 +0000 (17:36 +0000)]
Don't use "hz" in identifiers to make AIX happy.

malc found AIX headers leak "hz" and so it can't be used there.  Change
the occurences in hw/.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5709 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoInclude <strings.h> for ffs().
balrog [Wed, 12 Nov 2008 17:18:41 +0000 (17:18 +0000)]
Include <strings.h> for ffs().

ffs() is in <strings.h> although bsd compatible systems have it in
<string.h> already.  ffs() is used in omap1.c, omap2.c, omap_i2c.c,
bt-sdp.c.  These uses can be replaced with clz32() but ffs is more
available.  Problem was spotted by malc.

Make host-utils.h formatting more consistent.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5708 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agor5531 made x509 certs not loadable (original patch from Henrik Holst).
balrog [Wed, 12 Nov 2008 16:50:36 +0000 (16:50 +0000)]
r5531 made x509 certs not loadable (original patch from Henrik Holst).

The patch in r5531 which replaced a bunch of strncpy with pstrcpy causes
the x509 credentials from the -vnc parameter to be one character shorter
than entered meaning that there is currently no way to enter x509
certificates...

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5707 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoImplement LSI53C895A quirks exposed by OpenServer (Justin Chevrier).
balrog [Wed, 12 Nov 2008 16:41:32 +0000 (16:41 +0000)]
Implement LSI53C895A quirks exposed by OpenServer (Justin Chevrier).

After going through the debug log and scratching my head for quite some
time. I found the following:

The problem was with this block move:

lsi_scsi: SCRIPTS dsp=0fae8e50 opcode 01000028 arg 00f63c40
lsi_scsi: DMA addr=0x00f63c40 len=36

The number of bytes to be transferred (len) should be 40 which corresponds
to the block transfer of length 0x28 (from opcode 01000028). Instead we
have a length of 36 (0x24). The code responsible for this is (in
'lsi_do_dma'):

if (count > s->current_dma_len)
   count = s->current_dma_len;

Basically we're overwriting the length 40 with the value 36 which I
think we just left over in that variable from an earlier transfer. In my
patch below I initialize s->current_dma_len to s->dbc before we begin
the DMA transfer during Data In phase.

The attached patch gets Openserver 5.0.5 past the hardware detection
(and it lists the hard drive to boot, woohoo). It appears to stop a
little while later (doesn't seem SCSI related), but it's been so long since
I've booted Openserver I'm not sure what's supposted to happen after the HW
detection using the boot/root disks.

Props go to Craig Ringer for the initial post and the code that he posted
some of which is in this patch.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5706 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agofix some variable initizalization issues (Stefano Stabellini)
aliguori [Wed, 12 Nov 2008 15:00:36 +0000 (15:00 +0000)]
fix some variable initizalization issues (Stefano Stabellini)

this patch fixes two variable initialization issues.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5705 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix termbits and target IOC macros
aurel32 [Wed, 12 Nov 2008 10:01:12 +0000 (10:01 +0000)]
target-alpha: fix termbits and target IOC macros

This patch fixes the two following problems for Alpha linux-user:
   - termbits.h is incorrectly using host IOC macros and structures
   - IOC bitfields sizes are incorrectly set

This patch corrects the ioctl TCGETS done by isatty function call
on Alpha (when running SPEC crafty for instance).

Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5704 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix -linux-user build by reverting r5701
aliguori [Tue, 11 Nov 2008 22:06:42 +0000 (22:06 +0000)]
Fix -linux-user build by reverting r5701

Unfortunately, -linux-user doesn't use osdep as it replaces some of those
functions with specific ones.  The code #ifdef code in exec.c needs to
remain in place so instead of introducing a qemu_getpagesize() let's just
use getpagesize() in the non-Windows implementation of qemu_vmalloc.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5703 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAllocate guest memory on host page boundaries (Hollis Blanchard)
aliguori [Tue, 11 Nov 2008 21:50:17 +0000 (21:50 +0000)]
Allocate guest memory on host page boundaries (Hollis Blanchard)

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5702 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDefine OS-dependent qemu_getpagesize() (Hollis Blanchard)
aliguori [Tue, 11 Nov 2008 21:48:59 +0000 (21:48 +0000)]
Define OS-dependent qemu_getpagesize() (Hollis Blanchard)

Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5701 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoSplit savevm code into savevm.c
aliguori [Tue, 11 Nov 2008 21:33:36 +0000 (21:33 +0000)]
Split savevm code into savevm.c

This is pure code motion.  The savevm code is all common code so we can build
it once and share the object with all executables.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5700 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoMove the things that aren't target specific to libqemu_common.a.
aliguori [Tue, 11 Nov 2008 21:20:14 +0000 (21:20 +0000)]
Move the things that aren't target specific to libqemu_common.a.

This will improve the build time.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5699 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agowindows cdrom cache flush (Stefano Stabellini)
aliguori [Tue, 11 Nov 2008 20:57:30 +0000 (20:57 +0000)]
windows cdrom cache flush (Stefano Stabellini)

Windows only flushes its cache of a CDROM if it gets a
SENSE_UNIT_ATTENTION CHECK_CONDITION response to a REQUEST_SENSE
command.
Make sure it does so after we change the CD.

Tab damage fixed by Anthony Liguori

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Steven Smith <steven.smith@citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5698 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agosockets: switch over tcp/telnet/unix serial line to new helper functions (Gerd Hoffman)
aliguori [Tue, 11 Nov 2008 20:54:09 +0000 (20:54 +0000)]
sockets: switch over tcp/telnet/unix serial line to new helper functions (Gerd Hoffman)

This switches the tcp, telnet and unix socket support for character
devices (serial/parallel, ...) to the new socket helpers.  Thereby they
gain IPv6 support and also get ability to search for a free tcp port.
Syntax is the same as for vnc, using a to= option, like this:

-serial tcp:localhost:5000,to=5099,server

This will check the 5000 -> 5099 port range (inclusive) for a free tcp
port.  Likewise you can get auto-allocated unix sockets by specifying an
empty path:

-serial unix:,server

qemu will create a randomly named socket in $TMPDIR then.

tcp also got new "ipv4" and "ipv6" options to make qemu try only the
specified internet protocol version.

You can use the "info chardev" command added by the first patch in this
series to figure the tcp port / unix socket actually allocated.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5697 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agosockets: switch vnc to new code, support vnc port auto-allocation (Gerd Hoffman)
aliguori [Tue, 11 Nov 2008 20:51:59 +0000 (20:51 +0000)]
sockets: switch vnc to new code, support vnc port auto-allocation (Gerd Hoffman)

This patch switches the vnc code ofer to the new socket helper
functions.

It adds support IPv6 support and for automatically allocating an unused
vnc display port.  The latter is handled ising a to= option, specifying
the upper limit for the display number to try.  Scanning is started at
the display number given in the display specification, i.e. this command
line:

    -vnc localhost:7,to=11

will try displays 7 to 11 (inclusive).

There are also new "ipv4" and "ipv6" options to make qemu try only
the specified internet protocol version.

The display actually allocated can be queried using the "info vnc"
monitor command.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5696 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agosockets: helper functions for qemu (Gerd Hoffman)
aliguori [Tue, 11 Nov 2008 20:46:40 +0000 (20:46 +0000)]
sockets: helper functions for qemu (Gerd Hoffman)

This patch creates a new source file qemu-sockets.c with a bunch of
helper functions to create listening and connected sockets.

New features of this code are (a) support for searching for a free
port in a given range and (b) support for IPv6.

The following patches put that code into use.

Compile fixes for Windows added by Anthony Liguori

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5695 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoReintroduce migrate-to-exec: support (Charles Duffy)
aliguori [Tue, 11 Nov 2008 16:46:33 +0000 (16:46 +0000)]
Reintroduce migrate-to-exec: support (Charles Duffy)

KVM's live migration support included support for exec: URLs, allowing system
state to be written or received via an arbitrary popen()ed subprocess. This
provides a convenient way to pipe state through a compression algorithm or an
arbitrary network transport on its way to its destination, and a convenient way
to write state to disk; libvirt's qemu driver currently uses migration to exec:
targets for this latter purpose.

This version of the patch refactors now-common code from migrate-tcp.c into
migrate.c.

Signed-off-by: Charles Duffy <Charles_Duffy@messageone.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5694 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix decoding of CVTST /S
aurel32 [Tue, 11 Nov 2008 13:54:54 +0000 (13:54 +0000)]
target-alpha: fix decoding of CVTST /S

This patch fixes the decoding of CVTST /S which was
incorrectly being decoded as CVTTS.

This fixes SPEC2000 gcc with 200.i input.

Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5693 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix syscall error check
aurel32 [Tue, 11 Nov 2008 13:42:22 +0000 (13:42 +0000)]
target-alpha: fix syscall error check

(re-add commit 5689)

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5692 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRevert commits 5685 to 5688 committed by mistake
aurel32 [Tue, 11 Nov 2008 13:41:01 +0000 (13:41 +0000)]
Revert commits 5685 to 5688 committed by mistake

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5691 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: disable single stepping and TB flush by default
aurel32 [Tue, 11 Nov 2008 13:31:10 +0000 (13:31 +0000)]
target-alpha: disable single stepping and TB flush by default

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5690 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix syscall error check
aurel32 [Tue, 11 Nov 2008 13:31:01 +0000 (13:31 +0000)]
target-alpha: fix syscall error check

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5689 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoqemu: generate signals on tap I/O
aurel32 [Tue, 11 Nov 2008 13:30:53 +0000 (13:30 +0000)]
qemu: generate signals on tap I/O

Currently tap does not generate signals on I/O; this causes
network latency to be dependent on the timer tick (1ms without
dyntick, guest dependent with dyntick).  By generating a signal
on I/O, we can inform the guest immediately that a packet has
arrived.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5688 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse HOST_CC instead of CC on TCG only targets
aurel32 [Tue, 11 Nov 2008 13:30:45 +0000 (13:30 +0000)]
Use HOST_CC instead of CC on TCG only targets

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5687 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDon't stop translation for mtc0 compare
aurel32 [Tue, 11 Nov 2008 13:30:37 +0000 (13:30 +0000)]
Don't stop translation for mtc0 compare

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5686 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDisable debug code for production.
aurel32 [Tue, 11 Nov 2008 13:30:24 +0000 (13:30 +0000)]
Disable debug code for production.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5685 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: gen_compute_branch1()
aurel32 [Tue, 11 Nov 2008 11:50:51 +0000 (11:50 +0000)]
target-mips: gen_compute_branch1()

Optimize code generation in gen_compute_branch1():
- Directly use I32 variables instead of converting values from _tl to
  _i32 and back to _tl.
- Write the result directly to bcond instead of passing by a local
  variable.
- Temp variables are valid up to and *including* the brcond instruction.
  Use them instead of temp local variables.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5684 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize movc*()
aurel32 [Tue, 11 Nov 2008 11:50:43 +0000 (11:50 +0000)]
target-mips: optimize movc*()

Optimize code generation in gen_movc*():
- Temp variables are valid up to and *including* the brcond instruction.
  Use them instead of temp local variables.
- Avoid using temporary variables to transfer values.
- Access fpu_fcr31 directly in gen_movcf_ps().

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5683 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_farith()
aurel32 [Tue, 11 Nov 2008 11:50:33 +0000 (11:50 +0000)]
target-mips: optimize gen_farith()

Optimize code generation in gen_farith():
- Temp variables are valid up to and *including* the brcond instruction.
  Use them instead of temp local variables.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5682 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_muldiv()
aurel32 [Tue, 11 Nov 2008 11:50:25 +0000 (11:50 +0000)]
target-mips: optimize gen_muldiv()

Optimize code generation in gen_muldiv():
- Don't do sign extension when the value is already guaranteed to be
  sign extended (otherwise, results are marked as UNPREDICTABLE).
- Access the LO, HI registers directly instead of writting them through
  a temporary variable.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5681 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_arith()/gen_arith_imm()
aurel32 [Tue, 11 Nov 2008 11:50:17 +0000 (11:50 +0000)]
target-mips: optimize gen_arith()/gen_arith_imm()

Optimize code generation in gen_arith()/gen_arith_imm():
- Don't do sign extension when the value is already guaranteed to be
  sign extended (otherwise, results are marked as UNPREDICTABLE).
- When the value is sign extended, compare the value to 0 instead of
  testing bit 31/63.
- Temp variables are valid up to and *including* the brcond instruction.
  Use them instead of temp local variables.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5680 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: convert bit shuffle ops to TCG
aurel32 [Tue, 11 Nov 2008 11:47:06 +0000 (11:47 +0000)]
target-mips: convert bit shuffle ops to TCG

Bit shuffle operations can be written with very few TCG instructions
(between 5 and 8), so it is worth converting them to TCG.

This code also move all bit shuffle generation code to a separate
function in order to have a cleaner exception code path, that is it
doesn't store back the TCG register to the target register after the
exception, as the TCG register doesn't exist anymore.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5679 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: convert bitfield ops to TCG
aurel32 [Tue, 11 Nov 2008 11:46:58 +0000 (11:46 +0000)]
target-mips: convert bitfield ops to TCG

Bitfield operations can be written with very few TCG instructions
(between 2 and 5), so it is worth converting them to TCG.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5678 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_op_addr_add() (2/2)
aurel32 [Tue, 11 Nov 2008 11:39:33 +0000 (11:39 +0000)]
target-mips: optimize gen_op_addr_add() (2/2)

Instead of dynamically generating different code depending on the UX
flag, add a new flag in ctx->flags to generate different code.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5677 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_op_addr_add() (1/2)
aurel32 [Tue, 11 Nov 2008 11:36:52 +0000 (11:36 +0000)]
target-mips: optimize gen_op_addr_add() (1/2)

The user mode can be tested at translation time using ctx->hflags.
This simplifies gen_op_addr_add().

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5676 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: optimize gen_save_pc()
aurel32 [Tue, 11 Nov 2008 11:36:04 +0000 (11:36 +0000)]
target-mips: optimize gen_save_pc()

We obviously don't need to use a temporary variable to write PC.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5675 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: fix mft* helpers/call
aurel32 [Tue, 11 Nov 2008 11:34:39 +0000 (11:34 +0000)]
target-mips: fix mft* helpers/call

This patch attempts to fix mft* helpers and the associated TCG calls.
mft* helpers do not take a register in argument, however:
- some helpers are called with an argument while they do not take one.
- some helpers are declared with an argument they don't use.

Acked-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5674 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: fix temporary variable freeing in op_ldst_##insn()
aurel32 [Tue, 11 Nov 2008 11:34:30 +0000 (11:34 +0000)]
target-mips: fix temporary variable freeing in op_ldst_##insn()

Move tcg_temp_free() out of the conditional part to make sure
the TCG temporary variable is freed in all cases.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Acked-by: Thiemo Seufer <ths@networkno.de>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5673 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: add proper fcntl definitions
aurel32 [Tue, 11 Nov 2008 11:30:48 +0000 (11:30 +0000)]
target-alpha: add proper fcntl definitions

On Alpha the target to native fcntl definitions were missing.  Because of
this, programs trying to open files with the O_CREAT option were getting
O_APPEND instead, etc.

This was keeping gcc from the spec benchmarks from running, among other
things.

(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5672 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix double TCG variable allocation
aurel32 [Tue, 11 Nov 2008 11:30:04 +0000 (11:30 +0000)]
target-alpha: fix double TCG variable allocation

Noticed by Chris Krumme.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5671 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix alignment problem with some 64bit load/store instructions
malc [Tue, 11 Nov 2008 03:04:57 +0000 (03:04 +0000)]
Fix alignment problem with some 64bit load/store instructions

LD/STD/LWA require displacement to be multiple of 4, provide
tcg_out_ldsta which checks the supplied displacement and falls
back on indexed variant when the check fails. All uses of
LD/STD/LWA outside of tcg_out_ldst appear to be safe.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5670 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoKVM: simplify kvm_cpu_exec hook
aliguori [Mon, 10 Nov 2008 15:55:14 +0000 (15:55 +0000)]
KVM: simplify kvm_cpu_exec hook

We don't need to use cpu_loop_exit() because we never use the
condition codes so everything can be folded into a single case.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5669 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: convert most SPE integer instructions to TCG
aurel32 [Mon, 10 Nov 2008 11:10:23 +0000 (11:10 +0000)]
target-ppc: convert most SPE integer instructions to TCG

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5668 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix cmpbge instruction
aurel32 [Mon, 10 Nov 2008 11:10:14 +0000 (11:10 +0000)]
target-alpha: fix cmpbge instruction

The cmpbge instruction should compare all 8 bytes of one 64-bit value with
another.  However, we were looping with a < 7 condition which was skipping
the top byte.  So if we were doing a compare where the top byte was
important, we could get the wrong result (this notably breaks the strlen()
function with certain sized strings).

(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5667 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agouse target_mmap() to allocate idt, gdt and ldt (Kirill A. Shutemov).
balrog [Mon, 10 Nov 2008 02:55:33 +0000 (02:55 +0000)]
use target_mmap() to allocate idt, gdt and ldt (Kirill A. Shutemov).

env->*dt.base should fit target address space, so we should use
target_mmap to allocate them.

Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5666 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoCurrently trying to turn an oversized directory into a VVFAT image will
balrog [Mon, 10 Nov 2008 01:34:27 +0000 (01:34 +0000)]
Currently trying to turn an oversized directory into a VVFAT image will
result in a cryptic error (and an abort):
  qemu: block-vvfat.c:97: array_get: Assertion `index < array->next' failed.
  Aborted

Turn this into an actually useful error message:
  Directory does not fit in FAT16 (capacity 504MB)
  qemu: could not open disk image fat:$DIR/

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5665 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agox86 CPUID extended family/model (Andre Przywara).
balrog [Mon, 10 Nov 2008 01:05:01 +0000 (01:05 +0000)]
x86 CPUID extended family/model (Andre Przywara).

x86 CPUs feature extended family/model bits in CPUID leaf
0000_0001|EAX. Refer to page 10 in:
http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/25481.pdf

Those bits are necessary to model newer AMD CPUs:
-cpu qemu64,family=15,model=65,stepping=3 or
-cpu qemu64,family=16,model=4,stepping=2

Signed-off-by: Andre Przywara <andre.przywara@amd.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5664 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse TCG not op
blueswir1 [Sun, 9 Nov 2008 19:52:36 +0000 (19:52 +0000)]
Use TCG not op

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5663 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse andc, orc, nor and nand
blueswir1 [Sun, 9 Nov 2008 19:50:37 +0000 (19:50 +0000)]
Use andc, orc, nor and nand
Also fix which argument gets negated in fandnot[12] and fornot[12]

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5662 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: fix TCG argument
aurel32 [Sun, 9 Nov 2008 18:27:28 +0000 (18:27 +0000)]
target-ppc: fix TCG argument

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5661 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: Remove a few TCG temp variable leaks
aurel32 [Sun, 9 Nov 2008 17:27:36 +0000 (17:27 +0000)]
target-ppc: Remove a few TCG temp variable leaks

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5660 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: fixes for gen_op_neg()
aurel32 [Sun, 9 Nov 2008 17:27:27 +0000 (17:27 +0000)]
target-ppc: fixes for gen_op_neg()

- Rename to gen_op_arith_neg for consistency with other functions.
- Correctly free TCG temp variable.
- Fix the return value in 64-bit mode in case of overflow.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5659 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: gen_op_arith_divw() & gen_op_arith_divd fixes
aurel32 [Sun, 9 Nov 2008 17:27:19 +0000 (17:27 +0000)]
target-ppc: gen_op_arith_divw() & gen_op_arith_divd fixes

gen_op_arith_divw():
- "deoptimize" gen_op_arith_divw to make it more readable.
- Correctly free TCG temp variable

gen_op_arith_divd():
- Call the right function.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5658 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: optimize mullw and make the code more readable
aurel32 [Sun, 9 Nov 2008 17:27:11 +0000 (17:27 +0000)]
target-ppc: optimize mullw and make the code more readable

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5657 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: indentation fixes
aurel32 [Sun, 9 Nov 2008 17:27:03 +0000 (17:27 +0000)]
target-ppc: indentation fixes

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5656 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoSparc32 BSD user support
blueswir1 [Sun, 9 Nov 2008 09:31:37 +0000 (09:31 +0000)]
Sparc32 BSD user support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5655 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoDocument bluetooth support in qemu-doc.
balrog [Sun, 9 Nov 2008 02:24:54 +0000 (02:24 +0000)]
Document bluetooth support in qemu-doc.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5654 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd qemu_strndup: qemu_strdup with length limit.
balrog [Sun, 9 Nov 2008 00:28:40 +0000 (00:28 +0000)]
Add qemu_strndup: qemu_strdup with length limit.

Also optimise qemu_strdup by using memcpy - using pstrcpy is usually
suboptimal.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5653 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd the -bt switch for setting up bluetooth stuff.
balrog [Sun, 9 Nov 2008 00:04:26 +0000 (00:04 +0000)]
Add the -bt switch for setting up bluetooth stuff.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5652 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRevert r5532, r5536 and a piece of r5531.
balrog [Sat, 8 Nov 2008 23:57:26 +0000 (23:57 +0000)]
Revert r5532, r5536 and a piece of r5531.

The use of strncat and strndup was correct, pstrcpy and pstrdup wasn't.
I'll try to restore building on non-gnu OSes in a later commit.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5651 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse an option rom instead of boot sector for -kernel
aliguori [Sat, 8 Nov 2008 16:27:07 +0000 (16:27 +0000)]
Use an option rom instead of boot sector for -kernel

Generate an option rom instead of using a hijacked boot sector for kernel
booting.  This just requires adding a small option ROM header and a few more
instructions to the boot sector to take over the int19 vector and run our
boot code.

A disk is no longer needed when using -kernel on x86.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5650 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix the return value of stl_c/stq_c
aurel32 [Sat, 8 Nov 2008 09:10:39 +0000 (09:10 +0000)]
target-alpha: fix the return value of stl_c/stq_c

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5649 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: fix tcg fatal error on i386 host
aurel32 [Sat, 8 Nov 2008 08:57:45 +0000 (08:57 +0000)]
target-ppc: fix tcg fatal error on i386 host

It looks like the i386 runs out of registers for allocation due
to too many global registers allocated by the ppc target.

Here is a quick and dirty fix that seems to solve the problem.
This should be considered as temporary.

Signed-off-by: Laurent Desnogues <laurent.desnogues@gmail.com
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5648 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse the right format string to printf sector num with DEBUG_IDE.
balrog [Fri, 7 Nov 2008 23:05:14 +0000 (23:05 +0000)]
Use the right format string to printf sector num with DEBUG_IDE.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5647 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix some build issues for BSD.
blueswir1 [Fri, 7 Nov 2008 16:55:48 +0000 (16:55 +0000)]
Fix some build issues for BSD.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5646 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: fix locked loads/stores
aurel32 [Fri, 7 Nov 2008 14:00:24 +0000 (14:00 +0000)]
target-alpha: fix locked loads/stores

Fix reading of cpu_lock in gen_qemu_stql_c, original patch from Laurent
Desnogues.

A new flag was added to gen_store_mem to allocate local temps instead
of temps;  this flag should be set when the tcg_gen_qemu_store callback
uses brcond before using the temps or else liveness analysis will get
rid of the temps.

This also adds lock printing in cpu_dump_state which can help
debug.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5645 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-ppc: fix flags computation for tcg_gen_qemu_st
aurel32 [Fri, 7 Nov 2008 13:48:25 +0000 (13:48 +0000)]
target-ppc: fix flags computation for tcg_gen_qemu_st

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5644 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix interrupt exclusion via SSTEP_NOIRQ
malc [Thu, 6 Nov 2008 18:54:46 +0000 (18:54 +0000)]
Fix interrupt exclusion via SSTEP_NOIRQ

Commit #5620 revealed an issue of the SSTEP_NOIRQ masking that was
applied on all interrupt sources (including internal ones) when single
stepping through the guest. Due to that commit, we now ended up in an
infinite loop when CPU_INTERRUPT_EXIT was pending on SSTEP resume. That
was due to #5620 eating all TBs while CPU_INTERRUPT_EXIT is pending, but
SSTEP_NOIRQ preventing CPU_INTERRUPT_EXIT to be processed.

What SSTEP_NOIRQ should actually do is to block the delivery of all
external, guest visible interrupts. With the fix below applied, single
stepping now works again.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5643 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUser qemu profiling
aurel32 [Thu, 6 Nov 2008 16:15:18 +0000 (16:15 +0000)]
User qemu profiling

- Makefile.target:  re-enable profiling for user qemu.  It seems
  profiling was (accidently?) removed by commit 3937

- syscall.c:
    * add an include to get _mcleanup prototype
    * add a call to _mcleanup for exit_group in a way
      similar to what is done for exit

(Laurent Desnogues)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5642 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRemove unused reg_T2 definition
aurel32 [Thu, 6 Nov 2008 16:15:08 +0000 (16:15 +0000)]
Remove unused reg_T2 definition

No longer used, remove it.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5641 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoMake sure to resume the monitor only after flushing out outstanding
aliguori [Thu, 6 Nov 2008 15:30:22 +0000 (15:30 +0000)]
Make sure to resume the monitor only after flushing out outstanding
network traffic.

This was bug was reported by Chris Lalancette.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5640 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoWin32: Fix warnings
aurel32 [Thu, 6 Nov 2008 09:38:51 +0000 (09:38 +0000)]
Win32: Fix warnings

Attached patch fixes some warnings which only happen on Windows.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5639 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-alpha: Fix ret instruction
aurel32 [Thu, 6 Nov 2008 09:16:57 +0000 (09:16 +0000)]
target-alpha: Fix ret instruction

Hopefully pine doesn't corrupt this patch, I've had problems recently.

For an alpha "ret" instruction, of the type
     ret $26

The return was being ignored.  This is because in translate.c
register $26 (the return address) was being over-written with the current
PC before it could be jumped to.  Thus the ret was ignored.

This patch just re-orders things so the return address is processed before
it is over-written with the current PC.

(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5638 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix windows build after init_host_timer changes.
aliguori [Wed, 5 Nov 2008 21:22:34 +0000 (21:22 +0000)]
Fix windows build after init_host_timer changes.

host_alarm_timer fires in a separate thread.  The windows build current
uses SetEvent() and WaitEvent() to then notify the main thread.  This is
functionally equivalent to what we're doing in Unix with pipe().  So let's
just #ifdef the pipe() code on Windows since it doesn't build there anyway.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5637 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoRun timers from host alarm timer callback
aliguori [Wed, 5 Nov 2008 21:04:35 +0000 (21:04 +0000)]
Run timers from host alarm timer callback

This further cleans up the main loop getting it a lot closer to what a main
loop should be.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5636 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse qemu_set_fd_handler2() to determine when alarm timer fires.
aliguori [Wed, 5 Nov 2008 20:49:37 +0000 (20:49 +0000)]
Use qemu_set_fd_handler2() to determine when alarm timer fires.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5635 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoImprove error reporting in init_timer_alarm
aliguori [Wed, 5 Nov 2008 20:40:18 +0000 (20:40 +0000)]
Improve error reporting in init_timer_alarm

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5634 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoFix alarm_timer race with select - v3 (Jan Kiszka)
aliguori [Wed, 5 Nov 2008 20:29:45 +0000 (20:29 +0000)]
Fix alarm_timer race with select - v3 (Jan Kiszka)

Changing the default IO timeout to 5 s (#5578) made a race visible
between the alarm_timer and select() in main_loop_wait(): If the timer
fired before select was able to block, the full select() timeout could
have been applied instead of returning immediately. Since #5578, this
causes heavy problems to the Musicpal board emulation with stalls up to
5 s, but also with some older Linux guest kernels.

The following patch introduces a pipe that is written to by
host_alarm_handler and select()'ed in main_loop_wait(). This avoids
prevents that select() blocks though a timer has fired and waits for
processing.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5633 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoSM501 emulation for R2D-SH4
blueswir1 [Wed, 5 Nov 2008 20:24:35 +0000 (20:24 +0000)]
SM501 emulation for R2D-SH4

This patch adds minimum emulation of SM501 multifunction device,
whose main feature is 2D graphics.  It is one of the peripheral
of R2D, the SH4 evaluation board.  We can see TUX printed on the
QEMU console.

Signed-off-by: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5632 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAllow KVM to be used on either 32-bit or 64-bit x86
aliguori [Wed, 5 Nov 2008 19:59:25 +0000 (19:59 +0000)]
Allow KVM to be used on either 32-bit or 64-bit x86

Inspired by a patch from Glauber Costa.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5631 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoUse qemu_ram_alloc
blueswir1 [Wed, 5 Nov 2008 19:25:39 +0000 (19:25 +0000)]
Use qemu_ram_alloc

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5630 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd missing files to KVM commit.
aliguori [Wed, 5 Nov 2008 16:29:27 +0000 (16:29 +0000)]
Add missing files to KVM commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5629 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd --kerneldir configure argument
aliguori [Wed, 5 Nov 2008 16:28:56 +0000 (16:28 +0000)]
Add --kerneldir configure argument

This allows a user to override the default search path and also makes cross
compilation work a bit nicer wrt KVM detection.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5628 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd KVM support to QEMU
aliguori [Wed, 5 Nov 2008 16:04:33 +0000 (16:04 +0000)]
Add KVM support to QEMU

This patch adds very basic KVM support.  KVM is a kernel module for Linux that
allows userspace programs to make use of hardware virtualization support.  It
current supports x86 hardware virtualization using Intel VT-x or AMD-V.  It
also supports IA64 VT-i, PPC 440, and S390.

This patch only implements the bare minimum support to get a guest booting.  It
has very little impact the rest of QEMU and attempts to integrate nicely with
the rest of QEMU.

Even though this implementation is basic, it is significantly faster than TCG.
Booting and shutting down a Linux guest:

w/TCG:  1:32.36 elapsed  84% CPU

w/KVM:  0:31.14 elapsed  59% CPU

Right now, KVM is disabled by default and must be explicitly enabled with
 -enable-kvm.  We can enable it by default later when we have had better
testing.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5627 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoSplit CPUID from op_helper
aliguori [Wed, 5 Nov 2008 15:34:06 +0000 (15:34 +0000)]
Split CPUID from op_helper

KVM needs to call CPUID from outside of the TCG code.  This patch
splits out the CPUID logic into a separate helper that both the op
helper and KVM can call.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5626 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoAdd additional CPU flag definitions
aliguori [Wed, 5 Nov 2008 15:28:47 +0000 (15:28 +0000)]
Add additional CPU flag definitions

Some x86 CPU definitions that KVM needs

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5625 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoETRAX-FS: Make etraxfs_dmac_run local.
edgar_igl [Tue, 4 Nov 2008 20:29:29 +0000 (20:29 +0000)]
ETRAX-FS: Make etraxfs_dmac_run local.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5624 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoSet default audio timer period to a sane value (otherwise qemu becomes unusable if...
malc [Tue, 4 Nov 2008 19:15:37 +0000 (19:15 +0000)]
Set default audio timer period to a sane value (otherwise qemu becomes unusable if -icount N is specified)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5623 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agotarget-mips: use the new rotr/rotri instructions
aurel32 [Tue, 4 Nov 2008 19:13:47 +0000 (19:13 +0000)]
target-mips: use the new rotr/rotri instructions

Acked-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5622 c046a42c-6fe2-441c-8c8c-71466251a162

16 years agoETRAX-FS: Fix DMA warnings.
edgar_igl [Tue, 4 Nov 2008 19:02:00 +0000 (19:02 +0000)]
ETRAX-FS: Fix DMA warnings.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5621 c046a42c-6fe2-441c-8c8c-71466251a162