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[Qemu-devel] [PATCH 0/6] Unify memory allocation failure handling
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From: |
Avi Kivity |
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Subject: |
[Qemu-devel] [PATCH 0/6] Unify memory allocation failure handling |
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Date: |
Thu, 5 Feb 2009 13:08:40 +0200 |
Memory allocation failures are a very rare condition on virtual-memory
hosts. They are also very difficult to handle correctly (especially in a
hardware emulation context). Because of this, it is better to gracefully
terminate emulation rather than executing untested or even unwritten recovery
code paths.
This patchset modifies qemu_malloc() and related functions to terminate
on error, and updates callers not to perform their own error handling. In
many cases error handling was already missing or incorrect.
Avi Kivity (6):
Terminate emulation on memory allocation failure
block: remove error handling from qemu_malloc() callers
audio: remove error handling from qemu_malloc() callers
hw: remove error handling from qemu_malloc() callers
targets: remove error handling from qemu_malloc() callers
toplevel: remove error handling from qemu_malloc() callers
aio.c | 2 -
audio/audio.c | 23 +--
audio/wavcapture.c | 5 -
block-bochs.c | 2 -
block-cloop.c | 9 +-
block-dmg.c | 6 +-
block-parallels.c | 2 -
block-qcow2.c | 58 +------
block-raw-posix.c | 2 -
block-vmdk.c | 10 -
block-vpc.c | 4 -
block-vvfat.c | 18 +-
block.c | 6 -
buffered_file.c | 2 -
console.c | 23 ---
cris-dis.c | 26 +--
curses.c | 2 -
device_tree.c | 4 -
exec.c | 25 +--
gdbstub.c | 8 -
hw/adlib.c | 7 -
hw/apic.c | 4 -
hw/arm_gic.c | 2 -
hw/arm_sysctl.c | 2 -
hw/baum.c | 10 -
hw/cs4231.c | 2 -
hw/cs4231a.c | 5 -
hw/ds1225y.c | 5 -
hw/eccmemctl.c | 2 -
hw/escc.c | 4 -
hw/esp.c | 2 -
hw/etraxfs_dma.c | 8 -
hw/etraxfs_eth.c | 8 -
hw/etraxfs_pic.c | 6 -
hw/etraxfs_ser.c | 2 -
hw/etraxfs_timer.c | 2 -
hw/fdc.c | 6 -
hw/fmopl.c | 27 +---
hw/fw_cfg.c | 8 -
hw/g364fb.c | 2 -
hw/gus.c | 11 -
hw/i8259.c | 2 -
hw/ide.c | 2 -
hw/integratorcp.c | 2 -
hw/iommu.c | 2 -
hw/jazz_led.c | 2 -
hw/m48t59.c | 6 -
hw/mac_dbdma.c | 2 -
hw/mac_nvram.c | 6 -
hw/mc146818rtc.c | 4 -
hw/mipsnet.c | 2 -
hw/mpcore.c | 2 -
hw/mst_fpga.c | 2 -
hw/musicpal.c | 14 --
hw/ne2000.c | 2 -
hw/parallel.c | 4 -
hw/pci.c | 2 -
hw/pcnet.c | 2 -
hw/pflash_cfi01.c | 2 -
hw/pflash_cfi02.c | 2 -
hw/pl031.c | 2 -
hw/ppc.c | 7 -
hw/ppc405_boards.c | 24 +--
hw/ppc405_uc.c | 422 ++++++++++++++++++++-----------------------
hw/ppc440_bamboo.c | 2 -
hw/ppc4xx_devs.c | 72 ++++----
hw/ppc4xx_pci.c | 2 -
hw/ppc_prep.c | 2 -
hw/r2d.c | 2 -
hw/rc4030.c | 2 -
hw/sb16.c | 5 -
hw/sbi.c | 2 -
hw/serial.c | 4 -
hw/sh_intc.c | 4 +-
hw/sh_serial.c | 2 -
hw/slavio_intctl.c | 4 -
hw/slavio_misc.c | 2 -
hw/slavio_timer.c | 2 -
hw/sparc32_dma.c | 2 -
hw/sun4c_intctl.c | 2 -
hw/tcx.c | 2 -
hw/usb-bt.c | 2 -
hw/usb-hid.c | 6 -
hw/usb-hub.c | 2 -
hw/usb-msd.c | 2 -
hw/usb-net.c | 2 -
hw/usb-serial.c | 2 -
hw/usb-uhci.c | 15 +-
hw/usb-wacom.c | 2 -
hw/versatilepb.c | 2 -
hw/vga.c | 4 -
hw/virtio-blk.c | 3 +-
hw/virtio.c | 3 +-
hw/vmmouse.c | 2 -
keymaps.c | 10 +-
kvm-all.c | 7 -
loader.c | 4 -
migration-exec.c | 5 -
migration-tcp.c | 2 -
monitor.c | 4 -
net.c | 14 --
qemu-char.c | 59 ------
qemu-malloc.c | 16 +-
qemu-nbd.c | 2 -
qemu-tool.c | 6 +-
readline.c | 2 -
savevm.c | 19 --
sdl.c | 2 -
target-alpha/translate.c | 2 -
target-arm/helper.c | 4 -
target-cris/translate.c | 2 -
target-i386/helper.c | 2 -
target-i386/kvm.c | 2 -
target-m68k/helper.c | 2 -
target-mips/translate.c | 2 -
target-ppc/helper.c | 2 -
target-ppc/kvm_ppc.c | 4 -
target-ppc/translate_init.c | 2 -
target-sh4/translate.c | 2 -
target-sparc/helper.c | 2 -
usb-bsd.c | 2 -
usb-linux.c | 24 +---
vl.c | 16 --
vnc.c | 9 +-
124 files changed, 314 insertions(+), 956 deletions(-)