Glauber Costa [Fri, 8 May 2009 05:22:13 +0000 (02:22 -0300)]
reset state for load_linux
The linux loader is just an option rom like any other, just with
some special requirements. Right now, our option rom resetting
mechanism is not being applied to it. As a result, users using
-kernel will not be able to successfully reboot their machines
This patch fixes it by saving all the data we generated in
the load_linux() function, to be used later by the option rom
resetting mechanism.
Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Glauber Costa [Fri, 8 May 2009 05:22:12 +0000 (02:22 -0300)]
register reset handler for option_roms
Currently, boot options are not preserved across a system reset.
option roms can modify themselves, or can for instance restore the real
int 0x19 vector after they tried to boot from it.
To properly do that, we need a reset handler registered to deal with option
roms. This patch is based on current version on qemu-kvm.git
Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Fri, 8 May 2009 07:01:00 +0000 (09:01 +0200)]
Drop CONFIG_GDBSTUB
This is no user-flippable switch, and no arch makes use of disabling
gdbstub support. So it's pointless to keep the related #ifdefs and
configure hunks around - and risking breakages like 711c410fdd again.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Blue Swirl [Thu, 7 May 2009 17:14:07 +0000 (17:14 +0000)]
Fix disassembler memory accesses
Sparc disassembler wants to check previous addresses for some stuff
and this may actually cause faults to be generated to the guest if the
address is close to page start, because of the function used for the
memory access.
Fix by changing ldub_code to cpu_memory_rw_debug, which doesn't trigger
exceptions.
Alex Williamson [Wed, 14 May 2008 16:38:46 +0000 (10:38 -0600)]
Fix hw/acpi.c build w/ DEBUG enabled
Trivial build warning/fixes when the local DEBUG define is enabled.
Signed-off-by: Alex Williamson <alex.williamson@hp.com> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Chris Wright [Mon, 21 Apr 2008 23:02:48 +0000 (16:02 -0700)]
Pci nic: pci_register_device can fail
The pci_register_device() call in PCI nic initialization routines can
fail. Handle this failure and propagate a meaningful error message to
the user instead of generating a SEGV.
Cc: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Avi Kivity <avi@qumranet.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Glauber Costa [Thu, 23 Apr 2009 19:20:55 +0000 (15:20 -0400)]
suport device driver initialization model
According to PnP specification, Appendix B, Option ROMs
that support DDIM (device driver initialization model) should
have their memory space writeable.
KVM deviates from us here, by removing the IO_MEM_ROM flag,
to allow for PCI option ROMs (they require DDIM). However,
there's absolutely no reason we can't do the same.
Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Kevin Wolf [Thu, 23 Apr 2009 13:11:13 +0000 (15:11 +0200)]
qemu-io: Optionally verify only part of read data
There are reasonable test cases where a read must span areas that are not
uniformly filled with one pattern but contains several parts. This makes -P
useless for them currently.
Introducing additional options which determine the part of the read data that
should be verified with the given pattern allows to check such reads.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Sun, 26 Apr 2009 16:53:42 +0000 (18:53 +0200)]
net: Fix -net socket parameter checks
My commit ea053add700d8abe203cd79a9ffb082aee4eabc0 broke -net socket by
overwriting an intermediate buffer in the added check_param. Fix this
by switching check_param to automatic buffer allocation and release, ie.
callers no longer have to worry about providing a scratch buffer.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Sun, 26 Apr 2009 16:03:40 +0000 (18:03 +0200)]
kvm: Avoid COW if KVM MMU is asynchronous
Avi Kivity wrote:
> Suggest wrapping in a function and hiding it deep inside kvm-all.c.
>
Done in v2:
---------->
If the KVM MMU is asynchronous (kernel does not support MMU_NOTIFIER),
we have to avoid COW for the guest memory. Otherwise we risk serious
breakage when guest pages change there physical locations due to COW
after fork. Seen when forking smbd during runtime via -smb.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Format must be identical to the guest surface, we can't work with
the 32 bpp used by the default surface allocator.
Without this patch vnc doesn't get the conversions right when sending
pixel data to the client. The bug triggers if
(a) the client doesn't support WMVi, and
(b) the guest screen depth is != 32 bpp.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
[had the qemu list address wrong the first time, reply to this message,
not the previous if you were on Cc]
Add support for SG_IO passthru (packet commands) to the virtio-blk
backend. Conceptually based on an older patch from Hannes Reinecke
but largely rewritten to match the code structure and layering in
virtio-blk.
Note that currently we issue the hose SG_IO synchronously. We could
easily switch to async I/O, but that would required either bloating
the VirtIOBlockReq by the size of struct sg_io_hdr or an additional
memory allocation for each SG_IO request.
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Thu, 30 Apr 2009 08:17:39 +0000 (10:17 +0200)]
kvm: Relax aligment check of kvm_set_phys_mem
There is no need to reject an unaligned memory region registration if
the region will be I/O memory and it will not split an existing KVM
slot. This fixes KVM support on PPC.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Consul [Thu, 30 Apr 2009 20:52:46 +0000 (13:52 -0700)]
Remove redundant #define
Suppress a warning
audio/dsoundaudio.c:35:1: warning: "WIN32_LEAN_AND_MEAN" redefined
<command line>:4:1: warning: this is the location of the previous definition
Igor Kovalenko [Sat, 25 Apr 2009 14:17:25 +0000 (18:17 +0400)]
sparc64 support TSB related MMU registers
Posting updated patch to the list...
>>> On Fri, Apr 24, 2009 at 9:42 PM, Blue Swirl <blauwirbel@gmail.com> wrote:
>>> >
>>> > Nice, though I didn't notice any visible improvement in my tests.
>>>
>>> This early in boot process there is not much to output; and I test
>>> recent kernel which may use different startup sequence.
>>> I modified openbios cif handler to output arguments and I now can see
>>> visible difference.
>>>
>>>
>>> >
>>> > About the patch, there are a few problems:
>>> > - it breaks Sparc32
>>>
>>> You mean it stops working?
>>
>> Does not even build.
Fixed now.
>>> > - commented out code is ugly
>>> > - if and else should be on the same line as '{' or '}'
>>> > - long lines should be wrapped
>>> > - in the line:
>>> > + return (((tag_access_register & 0x1fff)<<48)|(tag_access_register >> 22));
>>> > there should be white space between ) and << and 48.
>>> >
>>>
>>
>> Also the ")|(" in between is crowded.
>>
>> Maybe the coding style does not describe this well enough.
BTW Supplying indent template would be great.
Please see the updated patch qemu-sparc64-tsb-asi-2.patch attached.
Change RTC time drift IRQ re-injection (Gleb Natapov)
Currently IRQ are reinjected as soon as they are acknowledged to
the RTC, but Windows sometimes do acknowledgement in a loop with
global interrupt disabled waiting for interrupt to be cleared and
it does not mask RTC vector in PIC/APIC while doing this. In such
situation interrupt injection always fails and RTC interrupt is never
cleared.
Instead of reinjecting coalesced IRQs on acknowledgement the patch below
reinjects them by accelerating RTC clock a bit. This way RTC interrupt
is not constantly raced after coalesced interrupt.
this patch adds a buffer_alignment field to BlockDriverState and
implements a qemu_blockalign function that uses that field to allocate a
memory aligned buffer to be used by the block driver.
buffer_alignment is initialized to 512 but each block driver can set
a different value (at the moment none of them do).
This patch modifies ide.c, block-qcow.c, block-qcow2.c and block.c to
use qemu_blockalign instead of qemu_memalign.
There is only one place left that still uses qemu_memalign to allocate
buffers used by block drivers that is posix-aio-compat:handle_aiocb_rw
because it is not possible to get the BlockDriverState from that
function. However I think it is not important because posix-aio-compat
already deals with driver specific code so it is supposed to know its
own needs.
This adds domain building support for paravirtual domains to qemu.
This allows booting xen guests directly with qemu, without Xend
and the management stack.
xen: blk & nic configuration via cmd line. (Gerd Hoffmann)
This patch makes qemu create backend and frontend device entries in
xenstore for devices configured on the command line. It will use
qdisk and qnic backend names, so the qemu internal backends will
be used.
Disks can be created using -drive if=xen,file=...
Nics can be created using -net nic,macaddr=...
projects / qemu-xen-4.5-testing.git / log