Hi all,
this patch adds a DisplayAllocator interface that allows display
frontends (sdl in particular) to provide a preallocated display buffer
for the graphical backend to use.
Whenever a graphical backend cannot use
qemu_create_displaysurface_from because its own internal pixel format
cannot be exported directly (text mode or graphical mode with color
depth 8 or 24), it creates another display buffer in memory using
qemu_create_displaysurface and does the conversion.
This new buffer needs to be blitted into the sdl surface buffer every time
we need to update portions of the screen.
We can avoid this using the DisplayAllocator interace: sdl provides its
own implementation of qemu_create_displaysurface, giving back the sdl
surface buffer directly (as we used to do before the DisplayState
changes).
Since the buffer returned by sdl could be in bgr format we need to put
back in the handlers of that case.
This approach is good if the two following conditions are true:
1) the sdl surface is a software surface that resides in main memory;
2) the host display color depth is either 16 or 32 bpp.
If first condition is false we can have bad performances using sdl
and vnc together.
If the second condition is false performances are certainly not going to
improve but they shouldn't get worse either.
The first condition is always true, at least on linux/X11 systems; but I
believe is true also on other platforms.
The second condition is true in the vast majority of the cases.
This patch should also have the good side effect of solving the sdl
2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not
going to be called anymore when the guest is in text mode or 24bpp.
However the root problem is still present so I suspect we may
still see some slowness on MacOS when the guest is in 32 or 16 bpp.
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@6839 c046a42c-6fe2-441c-8c8c-71466251a162
Rename bswap_i32 into bswap32_i32 and bswap_i64 into bswap64_i64
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6829 c046a42c-6fe2-441c-8c8c-71466251a162
The changes introduced by r6824 broke a subtle, and admittedly obscure, aspect
of the block API. While bdrv_{pread,pwrite} return the number of bytes read
or written upon success, bdrv_{read,write} returns a zero upon success.
When using bdrv_pread for bdrv_read, special care must be taken to handle this
case.
This fixes certain guest images (notably linux-0.2 provided on the qemu
website).
Reported-by: malc <av1474@comtv.ru>
Reported-by: Herve Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6828 c046a42c-6fe2-441c-8c8c-71466251a162
From: Xiantao Zhang <xiantao.zhang@intel.com>
Date: Tue, 3 Mar 2009 13:33:13 +0800
Subject: [PATCH] Split ioapic logic from the current apic.
Add a new ioapic.c to hold ioapic's logic, and also
make it work for ia64.
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
---
Makefile.target | 2 +-
hw/apic.c | 237 +++----------------------------------------------
hw/ioapic.c | 263 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
hw/pc.h | 5 +-
4 files changed, 281 insertions(+), 226 deletions(-)
create mode 100644 hw/ioapic.c
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6827 c046a42c-6fe2-441c-8c8c-71466251a162
Ported from the KVM tree: Synchronize the qemu cpu state with kvm's
before invoking various monitor info commands (like 'info registers').
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6826 c046a42c-6fe2-441c-8c8c-71466251a162
This is a backport of the guest debugging support for the KVM
accelerator that is now part of the KVM tree. It implements the reworked
KVM kernel API for guest debugging (KVM_CAP_SET_GUEST_DEBUG) which is
not yet part of any mainline kernel but will probably be 2.6.30 stuff.
So far supported is x86, but PPC is expected to catch up soon.
Core features are:
- unlimited soft-breakpoints via code patching
- hardware-assisted x86 breakpoints and watchpoints
Changes in this version:
- use generic hook cpu_synchronize_state to transfer registers between
user space and kvm
- push kvm_sw_breakpoints into KVMState
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6825 c046a42c-6fe2-441c-8c8c-71466251a162
Now that scsi generic no longer uses bdrv_pread() and bdrv_pwrite(), we can
drop the corresponding internal APIs, which overlap bdrv_read()/bdrv_write()
and, being byte oriented, are unnatural for a block device.
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@6824 c046a42c-6fe2-441c-8c8c-71466251a162
Add an internal API for the generic block layer to send scsi generic commands
to block format driver. This means block format drivers no longer need
to consider overloaded nb_sectors parameters.
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@6823 c046a42c-6fe2-441c-8c8c-71466251a162
When a scsi device is backed by a scsi generic device instead of an
ordinary host block device, the block API is abused in a couple of annoying
ways:
- nb_sectors is negative, and specifies a byte count instead of a sector count
- offset is ignored, since scsi-generic is essentially a packet protocol
This overloading makes hacking the block layer difficult. Remove it by
introducing a new explicit API for scsi-generic devices. The new API
is still backed by the old implementation, but at least the users are
insulated.
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@6822 c046a42c-6fe2-441c-8c8c-71466251a162
This series is broken by design as it requires expensive IO operations at
open time causing very long delays when starting a virtual machine for the
first time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6816 c046a42c-6fe2-441c-8c8c-71466251a162
This series is broken by design as it requires expensive IO operations at
open time causing very long delays when starting a virtual machine for the
first time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6815 c046a42c-6fe2-441c-8c8c-71466251a162
This series is broken by design as it requires expensive IO operations at
open time causing very long delays when starting a virtual machine for the
first time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6814 c046a42c-6fe2-441c-8c8c-71466251a162
This series is broken by design as it requires expensive IO operations at
open time causing very long delays when starting a virtual machine for the
first time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6813 c046a42c-6fe2-441c-8c8c-71466251a162
This series is broken by design as it requires expensive IO operations at
open time causing very long delays when starting a virtual machine for the
first time.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6812 c046a42c-6fe2-441c-8c8c-71466251a162
Emulating fldl on arm doesn't seem to work too well. It's the way
qemu_ld64 is translated to arm instructions.
tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0);
tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, 4);
Consider case where data_reg==0, data_reg2==1, and addr_reg==0. First load
overwrited addr_reg. So let's put an if (data_ref==addr_reg).
(Pablo Virolainen)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6808 c046a42c-6fe2-441c-8c8c-71466251a162
Simplify nand/nor/eqv and move their optimizations to and/or/xor
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6805 c046a42c-6fe2-441c-8c8c-71466251a162
The new MMIO interface requires non-overlapping slots. Reorganize the
musicpal accordingly, fixing a regression for the Ethernet emulation.
Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6803 c046a42c-6fe2-441c-8c8c-71466251a162
The introduction of TCGV_EQUAL and not op is slightly broken.
The definition of DEBUG_TCGV shows that.
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@6802 c046a42c-6fe2-441c-8c8c-71466251a162
loader.c:fread_targphys() read file by 4096 byte chunks and store them to
memory. But did not store the last chunk if its size was not 4096.
Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6792 c046a42c-6fe2-441c-8c8c-71466251a162
On German Fedora 9, no KVM errors are displayed.
This is because configure greps for "error:", which is locale-sensitive.
Use LANG=C for configure to find and display errors as expected.
Signed-off-by: Andreas Faerber <andreas.faerber@web.de>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6791 c046a42c-6fe2-441c-8c8c-71466251a162
Allow completion of concatenated key strings for the sendkey command.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6784 c046a42c-6fe2-441c-8c8c-71466251a162
