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2011-09-06VMDK: bugfix, open Haiku vmdk imageFam Zheng1-4/+11
Haiku provides a specially formed vmdk image, which let qemu abort. It a combination of sparse header and flat data (i.e. with not l1/l2 table at all). The fix is turn to descriptor when sparse header is zero in field 'capacity'. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: creating streamOptimized subformatFam Zheng1-6/+12
Creating streamOptimized subformat. Added subformat option 'streamOptimized', to create a image with compression enabled and each cluster with a GrainMarker. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: read/write compressed extentFam Zheng1-11/+100
Add support for reading/writing compressed extent. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: Opening compressed extent.Fam Zheng1-0/+16
Added flags field for compressed/streamOptimized extents, open and save image configuration. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: separate vmdk_read_extent/vmdk_write_extentFam Zheng1-9/+45
Factor out read/write extent code, since there will be more things to take care of once reading/writing compressed clusters is introduced. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: add twoGbMaxExtentSparse supportFam Zheng1-50/+83
Add twoGbMaxExtentSparse support. Introduce vmdk_free_last_extent. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06VMDK: enable twoGbMaxExtentFlatFam Zheng1-1/+3
Enable the createType 'twoGbMaxExtentFlat'. The supporting code is already in. Signed-off-by: Fam Zheng <famcool@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Declare qemu_blockalign() in block.h, not block_int.hMarkus Armbruster3-3/+2
Device models should be able to use it without an unclean include of block_int.h. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06spitz tosa: Simplify "drive is suitable for microdrive" testMarkus Armbruster2-14/+6
We try the drive defined with -drive if=ide,index=0 (or equivalent sugar). We use it only if (dinfo && bdrv_is_inserted(dinfo->bdrv) && !bdrv_is_removable(dinfo->bdrv)). This is a convoluted way to test for "drive media can't be removed". The only way to create such a drive with -drive if=ide is media=cdrom. And that sets dinfo->media_cd, so just test that. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06xen: Clean up pci_piix3_xen_ide_unplug()'s test for "not a CD"Markus Armbruster1-2/+1
pci_piix3_xen_ide_unplug() unplugs only disks, not CD-ROMs. It peeks into the DriveInfo's BlockDriverState to distinguish between the two. Unclean; use DriveInfo member media_cd, like xen_config_dev_blk(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06savevm: Include writable devices with removable mediaMarkus Armbruster2-3/+3
savevm and loadvm silently ignore block devices with removable media, such as floppies and SD cards. Rolling back a VM to a previous checkpoint will *not* roll back writes to block devices with removable media. Moreover, bdrv_is_removable() is a confused mess, and wrong in at least one case: it considers "-drive if=xen,media=cdrom -M xenpv" removable. It'll be cleaned up later in this series. Read-only block devices are also ignored, but that's okay. Fix by ignoring only read-only block devices and empty block devices. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Clean up bdrv_flush_all()Markus Armbruster1-2/+1
Change (!bdrv_is_removable(bs) || bdrv_is_inserted(bs)) to just bdrv_is_inserted(). Rationale: The value of bdrv_is_removable(bs) matters only when bdrv_is_inserted(bs) is false. bdrv_is_inserted(bs) is true when bs is open (bs->drv != NULL) and not an empty host drive (CD-ROM or floppy). Therefore, bdrv_is_removable(bs) matters only when: 1. bs is not open old: may call bdrv_flush(bs), which does nothing new: won't call 2. bs is an empty host drive old: may call bdrv_flush(bs), which calls driver method raw_flush(), which calls fdatasync() or equivalent, which can't do anything useful while the drive is empty new: won't call Result is bs->drv && !bdrv_is_read_only(bs) && bdrv_is_inserted(bs). bdrv_is_inserted(bs) implies bs->drv. Drop the redundant test. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06fdc: Make media change detection more robustMarkus Armbruster1-4/+8
fdctrl_change_cb() gets called on a virtual media change via monitor. It would be nice if host device block drivers called it on physical media change, but they don't. bdrv_media_changed() lets you poll for media change, but it returns "don't know" except with block driver "host_floppy". FDrive member media_changed gets set on device initialization and by fdctrl_change_cb(), and cleared by fdctrl_media_changed(). Thus, it's set on first entry to fdctrl_media_changed() since device initialization or virtual media change. fdctrl_media_changed() ignores media_changed unless bdrv_media_changed() returns "don't know". If we change media via monitor (setting media_changed), and the new media's block driver returns 0, we lose. Fortunately, "host_floppy" always returns 1 on first call. Brittle. Clean it up not to rely on it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Leave tracking media change to device modelsMarkus Armbruster3-37/+24
hw/fdc.c is the only one that cares. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block/raw: Fix to forward method bdrv_media_changed()Markus Armbruster1-0/+7
Block driver "raw" forwards most methods to the underlying block driver. However, it doesn't implement method bdrv_media_changed(). Makes bdrv_media_changed() always return -ENOTSUP. I believe -fda /dev/fd0 gives you raw over host_floppy, and disk change detection (fdc register 7 bit 7) is broken. Testing my theory requires a computer museum, though. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06ide: Give vmstate structs internal linkage where possibleMarkus Armbruster1-3/+3
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06ide: Clean up case label indentation in ide_exec_cmd()Markus Armbruster1-6/+6
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06ide: Update command code definitions as per ACS-2 Table B.2Markus Armbruster2-83/+92
Drop WIN_SRST, it has the same value as WIN_DEVICE_RESET. Drop unused WIN_RESTORE, it has the same value as WIN_RECAL. Drop codes that are not implemented and long obsolete: WIN_READ_LONG, WIN_READ_LONG_ONCE, WIN_WRITE_LONG, WIN_WRITE_LONG_ONCE, WIN_FORMAT (all obsolete since ATA4), WIN_ACKMEDIACHANGE, WIN_POSTBOOT, WIN_PREBOOT (obsolete since ATA3), WIN_WRITE_SAME (obsolete since ATA3, code reused for something else in ACS2), WIN_IDENTIFY_DMA (obsolete since ATA4). Drop codes that are not implemented and vendor-specific: EXABYTE_ENABLE_NEST, DISABLE_SEAGATE. Drop WIN_INIT, it isn't implemented, its value used to be reserved, and is used for something else since ATA8. CFA_IDLEIMMEDIATE isn't specific to CFATA. ACS-2 shows it as a defined command in ATA-1, -2 and -3. Rename to WIN_IDLEIMMEDIATE2. Mark vendor specific, retired, and obsolete codes. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Split change_cb() into change_media_cb(), resize_cb()Markus Armbruster6-29/+33
Multiplexing callbacks complicates matters needlessly. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Generalize change_cb() to BlockDevOpsMarkus Armbruster6-31/+44
So we can more easily add device model callbacks. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06block: Attach non-qdev devices as wellMarkus Armbruster12-22/+39
For now, this just protects against programming errors like having the same drive back multiple non-qdev devices, or untimely bdrv_delete(). Later commits will add other interesting uses. While there, rename BlockDriverState member peer to dev, bdrv_attach() to bdrv_attach_dev(), bdrv_detach() to bdrv_detach_dev(), and bdrv_get_attached() to bdrv_get_attached_dev(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06async: Allow nested qemu_bh_poll callsKevin Wolf1-8/+16
qemu may segfault when a BH handler first deletes a BH and then (possibly indirectly) calls a nested qemu_bh_poll(). This is because the inner instance frees the BH and deletes it from the list that the outer one processes. This patch deletes BHs only in the outermost qemu_bh_poll instance. Commit 7887f620 already tried to achieve the same, but it assumed that the BH handler would only delete its own BH. With a nested qemu_bh_poll(), this isn't guaranteed, so that commit wasn't enough. Hope this one fixes it for real. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06qcow2: Fix error cases to run depedent requestsKevin Wolf1-3/+4
Requests depending on a failed request would end up waiting forever. This fixes the error path to continue dependent requests even when the request has failed. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06qcow2: Properly initialise QcowL2MetaKevin Wolf1-2/+3
Dependency list pointers filled with random garbage from the stack aren't a good idea. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06linux aio: some commentsFrediano Ziglio2-0/+5
Add some notes about Linux AIO explaining why we don't use AIO in some situations. Signed-off-by: Frediano Ziglio <freddy77@gmail.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06mips: Support the MT TCStatus IXMT irq disable flagEdgar E. Iglesias1-0/+4
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Add SMP support to the Malta boardEdgar E. Iglesias1-5/+21
No change to the CPU kinds, so SMP will only work if manually changing the cpu to 34Kf: -cpu 34Kf -smp 2 Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Add MT halting and waking of VPEsEdgar E. Iglesias2-4/+129
+ some partial support for TC's. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Initialize MT state at resetEdgar E. Iglesias1-0/+26
Only TC0 on VPE0 is active after reset. All other VPEs and TCs start in sleep. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Default to using one VPE and one TC.Edgar E. Iglesias1-1/+1
Boards can override the setup if needed. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Enable VInt interrupt mode for the 34KfEdgar E. Iglesias1-1/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Correct VInt vector generationEdgar E. Iglesias1-3/+3
1. The pending need to pass the Status IM gating. 2. The priority is from seven (highest prio) down to zero. QEMU was doing the opposite. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Correct IntCtl write mask for VIntEdgar E. Iglesias1-1/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Hook in more reg accesses via mttr/mftrEdgar E. Iglesias3-11/+225
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Synchronize CP0 TCSTatus, Status and EntryHiEdgar E. Iglesias1-44/+106
These registers share some of their fields. Writes to these fields should be visible through the corresponding mirror fields. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-06mips: Handle TC indexing of other VPEsEdgar E. Iglesias1-105/+161
Introduce mips_cpu_map_tc() to map a global TC index into a VPE nr and local tc index. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2011-09-04milkymist: convert to memory APIAvi Kivity1-4/+5
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04milkymist-softusb: convert to memory APIAvi Kivity1-24/+24
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04milkymist-minimac2: convert to memory APIAvi Kivity1-22/+21
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04mcf5208: convert to memory APIAvi Kivity1-40/+32
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04mainstone: convert to memory APIAvi Kivity1-5/+8
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04lm32_boards: convert to memory APIAvi Kivity1-6/+9
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04dummy_m68k: convert to memory APIAvi Kivity1-2/+5
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04pflash_cfi01/pflash_cfi02: convert to memory APIAvi Kivity18-181/+187
cfi02 is annoying in that is ignores some address bits; we probably want explicit support in the memory API for that. In order to get the correct opaque into the MemoryRegion object, the allocation scheme is changed so that the flash emulation code allocates memory, instead of the caller. This clears a FIXME in the flash code. Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04Makefile.hw: allow hw/ files to include glib headersAvi Kivity1-0/+1
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04piix_pci: wrap memory update in a transactionAvi Kivity1-0/+2
The code will remap all PAMs, even if just one is updated, resulting in reduced performance. Wrap in a transaction to detect that those other PAMs have not changed. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04cirrus: wrap memory update in a transactionAvi Kivity1-0/+2
This prevents spurious unmapping and remapping of the vga windows, which reduces performance. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04leon3: convert to memory APIAvi Kivity1-6/+9
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04integratorcp: convert to memory API (RAM/flash only)Avi Kivity1-8/+20
Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Avi Kivity <avi@redhat.com>
2011-09-04sysbus: add sysbus_add_memory_overlap()Avi Kivity2-0/+9
Signed-off-by: Avi Kivity <avi@redhat.com>
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