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2014-09-30virtio: add a wrapper for virtio-backend initializationGonglei5-76/+71
For better code sharing, add a helper function that handles reference counting of the virtio backend for virtio proxy devices. Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-9p: fix virtio-9p child refcount in transportsGonglei1-0/+1
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon unplug the virtio-9p child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-9p: use aliases instead of duplicate qdev propertiesGonglei1-1/+1
virtio-9p-pci all duplicate the qdev properties of their V9fsState child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the V9fsState child. This way no duplication is necessary. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-balloon: fix virtio-balloon child refcount in transportsGonglei2-2/+2
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-balloon child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-rng: fix virtio-rng child refcount in transportsGonglei3-0/+3
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-rng child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-rng: use aliases instead of duplicate qdev propertiesGonglei3-3/+3
virtio-rng-{pci, s390, ccw} all duplicate the qdev properties of their VirtIORNG child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the VirtIORNG child. This way no duplication is necessary. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-serial: fix virtio-serial child refcount in transportsGonglei3-0/+3
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-serial child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-serial: use aliases instead of duplicate qdev propertiesGonglei3-3/+3
virtio-serial-{pci, s390, ccw} all duplicate the qdev properties of their VirtIOSerial child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the VirtIOSerial child. This way no duplication is necessary. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio/vhost-scsi: fix virtio-scsi/vhost-scsi child refcount in transportsGonglei3-0/+6
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-scsi/vhost-scsi child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio/vhost-scsi: use aliases instead of duplicate qdev propertiesGonglei3-6/+6
{virtio, vhost}-scsi-{pci, s390, ccw} all duplicate the qdev properties of their VirtIOSCSI/VHostSCSI child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the VirtIOSCSI/VHostSCSI child. This way no duplication is necessary. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-net: fix virtio-net child refcount in transportsGonglei3-0/+3
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-net child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-30virtio-net: use aliases instead of duplicate qdev propertiesGonglei3-6/+3
virtio-net-pci, virtio-net-s390, and virtio-net-ccw all duplicate the qdev properties of their VirtIONet child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the VirtIONet child. This way no duplication is necessary. Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-29tcg: Always enable TCGv type checkingRichard Henderson1-55/+34
Instead of using structures, which imply some amount of overhead on certain ABIs, use pointer types. This actually reduces the size of the binaries vs a NON-debug build on ppc64 and x86_64, due to a reduction in the number of sign-extension insns. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29qemu/compiler: Define QEMU_ARTIFICIALRichard Henderson1-0/+6
The combination of always_inline + artificial allows tiny inline functions to be written that do not interfere with debugging. In particular, gdb will not step into an artificial function. The always_inline attribute was introduced in gcc 4.2, and the artificial attribute was introduced in gcc 4.3. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-aarch64: Use 32-bit loads for qemu_ld_i32Richard Henderson2-14/+18
The "old" qemu_ld opcode did not specify the size of the result, and so we had to assume full register width. With the new opcodes, we can narrow the result. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Use UMULXHI instructionRichard Henderson3-1/+7
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Rename ADDX/SUBX insnsRichard Henderson2-28/+18
The pre-v9 ADDX/SUBX insns were renamed ADDC/SUBC for v9. Standardizing on the v9 name makes things less confusing. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Use ADDXC in setcond_i64Richard Henderson1-0/+17
Similar to the ADDC tricks we use in setcond_i32. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Fix setcond_i32 uninitialized valueRichard Henderson1-2/+5
We failed to swap c1 and c2 correctly for NE c2 == 0. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Use ADDXC in addsub2_i64Richard Henderson4-13/+61
On T4 and newer Sparc chips we have an add-with-carry insn that takes its input from %xcc instead of %icc. Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29tcg-sparc: Support addsub2_i64Richard Henderson2-9/+67
Signed-off-by: Richard Henderson <rth@twiddle.net>
2014-09-29Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20140929-1' into ↵Peter Maydell3-42/+21
staging add and use graphic_console_set_hwops # gpg: Signature made Mon 29 Sep 2014 11:18:37 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/spice/tags/pull-spice-20140929-1: qxl: use graphic_console_set_hwops console: add graphic_console_set_hwops Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Add support for VIRQ and VFIQEdgar E. Iglesias5-14/+76
This only implements the external delivery method via the GIC. Acked-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-12-git-send-email-edgar.iglesias@gmail.com [PMM: adjusted following cpu-exec refactoring] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Add IRQ and FIQ routing to EL2 and 3Edgar E. Iglesias2-0/+27
Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-11-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: A64: Emulate the SMC insnEdgar E. Iglesias7-0/+51
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-10-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Add a Hypervisor Trap exception typeEdgar E. Iglesias4-0/+4
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-9-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: A64: Emulate the HVC insnEdgar E. Iglesias7-10/+81
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-8-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: A64: Correct updates to FAR and ESR on exceptionsEdgar E. Iglesias1-4/+3
Not all exception types update both FAR and ESR. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-7-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Don't take interrupts targeting lower ELsEdgar E. Iglesias1-0/+7
Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-6-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Break out exception masking to a separate funcEdgar E. Iglesias2-5/+17
Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-5-git-send-email-edgar.iglesias@gmail.com [PMM: updated to account for recent cpu-exec refactoring] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: A64: Refactor aarch64_cpu_do_interruptEdgar E. Iglesias3-11/+33
Introduce new_el and new_mode in preparation for future patches that add support for taking exceptions to and from EL2 and 3. No functional change. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-4-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Add SCR_EL3Edgar E. Iglesias2-3/+51
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-3-git-send-email-edgar.iglesias@gmail.com [PMM: apply offsetoflow32() to correct regdef] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Add HCR_EL2Edgar E. Iglesias2-0/+70
Reviewed-by: Greg Bellows <greg.bellows@linaro.org> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 1411718914-6608-2-git-send-email-edgar.iglesias@gmail.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29target-arm: Don't handle c15_cpar changes via tb_flush()Peter Maydell6-30/+44
At the moment we try to handle c15_cpar with the strategy of: * emit generated code which makes assumptions about its value * when the register value changes call tb_flush() to throw away the now-invalid generated code This works because XScale CPUs are always uniprocessor, but it's confusing because it suggests that the same approach can be taken for other registers. It also means we do a tb_flush() on CPU reset, which makes multithreaded linux-user binaries even more likely to fail than would otherwise be the case. Replace it with a combination of TB flags for the access checks done on cp0/cp1 for the XScale and iwMMXt instructions, plus a runtime check for cp2..cp13 coprocessor accesses. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1411056959-23070-1-git-send-email-peter.maydell@linaro.org
2014-09-29hw/input/tsc210x.c: Delete unused array tsc2101_ratesPeter Maydell1-30/+0
The array tsc2101_rates[] is unused (and we don't implement the TSC2101 anyway, only the 2102); delete it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410723223-17711-5-git-send-email-peter.maydell@linaro.org
2014-09-29hw/display/pxa2xx_lcd.c: Remove unused function pxa2xx_dma_rdst_setPeter Maydell1-8/+0
The function pxa2xx_dma_rdst_set() is unused; delete it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410723223-17711-4-git-send-email-peter.maydell@linaro.org
2014-09-29hw/intc/imx_avic.c: Remove unused function imx_avic_set_prio()Peter Maydell1-9/+0
The function imx_avic_set_prio() is unused; delete it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410723223-17711-3-git-send-email-peter.maydell@linaro.org
2014-09-29hw/display/blizzard.c: Delete unused function blizzard_rgb2yuvPeter Maydell1-8/+0
The function blizzard_rgb2yuv() is unused; delete it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410723223-17711-2-git-send-email-peter.maydell@linaro.org
2014-09-29configure: Build GDB XML for 32 bit ARM CPUs into qemu aarch64 binariesPeter Maydell1-1/+1
The qemu-aarch64 and qemu-system-aarch64 binaries include support for all the 32 bit ARM CPUs as well as the 64 bit ones. This means we need to build in the GDB XML files for the 32 bit CPUs too. Otherwise gdb will complain: warning: while parsing target description (at line 1): Could not load XML document "arm-core.xml" when you try to connect to our gdbserver to debug a 32 bit CPU running in a qemu-aarch64 or qemu-system-aarch64 binary. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410533739-13836-1-git-send-email-peter.maydell@linaro.org
2014-09-29target-arm: Implement handling of breakpoint firingPeter Maydell2-15/+66
Implement handling of breakpoint event firing to correctly inject the debug exception into the guest. Since the breakpoint and watchpoint control register format is very similar we adjust wp_matches() to also handle breakpoints as well rather than using a separate function. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410523465-13400-3-git-send-email-peter.maydell@linaro.org
2014-09-29target-arm: Implement setting guest breakpointsPeter Maydell5-2/+136
This patch adds support for setting guest breakpoints based on values the guest writes to the DBGBVR and DBGBCR registers. (It doesn't include the code to handle when these breakpoints fire, so has no guest-visible effect.) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1410523465-13400-2-git-send-email-peter.maydell@linaro.org
2014-09-29Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into stagingPeter Maydell17-26/+179
* remotes/qmp-unstable/queue/qmp: Add HMP command "info memory-devices" qemu-socket: Eliminate silly QERR_ macros qemu-socket: Polish errors for connect() and listen() failure qemu-iotests: Test missing "driver" key for blockdev-add tests: add QMP input visitor test for unions with no discriminator qapi: dealloc visitor, implement visit_start_union qapi: add visit_start_union and visit_end_union virtio-balloon: fix integer overflow in memory stats feature monitor: Reset HMP mon->rs in CHR_EVENT_OPEN Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29vl: Adjust the place of calling mlockall to speedup VM's startupzhanghailiang1-6/+5
If we configure mlock=on and memory policy=bind at the same time, It will consume lots of time for system to treat with memory, especially when call mbind behind mlockall. Adjust the place of calling mlockall, calling mbind before mlockall can remarkably reduce the time of VM's startup. Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-29pc-dimm: Don't check dimm->node when there is non-NUMA configzhanghailiang1-1/+1
It should not break memory hotplug feature if there is non-NUMA option. This patch would also allow to use pc-dimm as replacement for initial memory for non-NUMA configs. Note: After this patch, the memory hotplug can work normally for Linux guest OS when there is non-NUMA option and NUMA option. But not support Windows guest OS to hotplug memory with no-NUMA config, actully, it's Windows limitation. Reviewed-By: Igor Mammedov <imammedo@redhat.com> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-29pci-hotplug-old: avoid losing error messageGonglei1-1/+4
When scsi_bus_legacy_add_drive() produces an error, we will lose the error message. Using error_report to report it. Cc: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-29Revert "virtio-pci: fix migration for pci bus master"Michael S. Tsirkin1-20/+19
This reverts commit 4d43d3f3c8147ade184df9a1e9e82826edd39e19. Reported to break PPC guests. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-29loader: g_realloc(p, 0) frees and returns NULL, simplifyMarkus Armbruster1-10/+5
Once upon a time, it was decided that qemu_realloc(ptr, 0) should abort. Switching to glib retired that bright idea. A bit of code that was added to cope with it (commit 3e372cf) is still around. Bury it. See also commit 6528499. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-09-29libqos: use microseconds instead of iterations for virtio timeoutStefan Hajnoczi3-43/+42
Some hosts are slow or overloaded so test execution takes a long time. Test cases use timeouts to protect against an infinite loop stalling the test forever (especially important in automated test setups). Commit 6cd14054b67774cc58a51fca6660cfa1d3c08059 ("libqos virtio: Increase ISR timeout") increased the clock_step() value in an attempt to lengthen the virtio interrupt wait timeout, but timeout failures are still occuring on the Travis automated testing platform. This is because clock_step() only affects the guest's virtual time. Virtio requests can be bottlenecked on host disk I/O latency - which cannot be improved by stepping the clock, so the fix was ineffective. This patch changes the qvirtio_wait_queue_isr() and qvirtio_wait_config_isr() timeout mechanism from loop iterations to microseconds. This way the test case can specify an absolute 30 second timeout. Number of loop iterations is not a reliable timeout mechanism since the speed depends on many factors including host performance. Tests should no longer timeout on overloaded Travis instances. Cc: Marc Marí <marc.mari.barcelo@gmail.com> Reported-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29libqos: improve event_index test with timeoutStefan Hajnoczi3-4/+31
The virtio event_index feature lets the device driver tell the device how many requests to process before raising the next interrupt. virtio-blk-test.c tries to verify that the device does not raise an interrupt unnecessarily. Unfortunately the test has a race condition. It spins checking for an interrupt up to 100 times and then assumes the request has finished. On a slow host the I/O request could still be in flight and the test would fail. This patch waits for the request to complete, or until a 30-second timeout is reached. If an interrupt is raised while waiting the test fails since the device was not supposed to raise interrupts. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-29raw-posix: Fix build without posix_fallocate()Kevin Wolf2-4/+32
Check for the presence of posix_fallocate() in configure and only compile in support for PREALLOC_MODE_FALLOC when it's there. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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