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2014-03-07hw/ide/ahci.h: Avoid shifting left into sign bitPeter Maydell1-5/+5
Add 'U' suffixes to avoid undefined behaviour shifting left into the signed bit of a signed integer type. Clang's sanitizer will warn about this: hw/ide/ahci.c:1210:27: runtime error: left shift of 1 by 31 places cannot be represented in type 'int' Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-07-23ide/ich: QOM parent field cleanupAndreas Färber1-1/+4
Replace direct uses of AHCIPCIState::card with QOM casts and rename it to parent_obj. Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23ide/ich: QOM Upcast SweepPeter Crosthwaite1-0/+5
Define and use standard QOM cast macro. Remove usages of DO_UPCAST() and direct -> style upcasting. Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> [AF: Renamed to TYPE_ICH9_AHCI and used typedef in pci_ich9_reset()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-20dma: eliminate DMAContextPaolo Bonzini1-2/+2
The DMAContext is a simple pointer to an AddressSpace that is now always already available. Make everyone hold the address space directly, and clean up the DMA API to use the AddressSpace directly. Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-01-25ahci: Add migration supportJason Baron1-0/+10
Jason tested these patches by migrating Windows 7 and Fedora 17 guests (while under I/O) on both piix with ahci attached and on q35 (which has a built-in AHCI controller). Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25ahci: Change data types in preparation for migrationKevin Wolf1-4/+4
The size of an int depends on the host, so in order to be able to migrate these fields, make them either int32_t or bool, depending on the use. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25ahci: Remove unused AHCIDevice fieldsJason Baron1-2/+0
'dma_status' and 'dma_cb' are written to, but never read. Remove these fields in preparation for AHCI migration bits. Signed-off-by: Jason Baron <jbaron@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-27ide/ahci: Use universal DMA helper functionsDavid Gibson1-1/+2
The AHCI device can provide both PCI and SysBus AHCI device emulations. For this reason, it wasn't previously converted to use the pci_dma_*() helper functions. Now that we have universal DMA helper functions, this converts AHCI to use them. The DMAContext is obtained from pci_dma_context() in the PCI case and set to NULL in the SysBus case (i.e. we assume for now that a SysBus AHCI has no IOMMU translation). Cc: Kevin Wolf <kwolf@redhat.com> Cc: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-07ahci: Clean up reset functionsJan Kiszka1-1/+1
Properly register reset functions via the device class. CC: Alexander Graf <agraf@suse.de> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-09-21ahci: add port I/O index-data pairDaniel Verkamp1-1/+8
Implement an I/O space index-data register pair as defined by the AHCI spec, including the corresponding SATA PCI capability and BAR. This allows real-mode code to access the AHCI registers; real-mode code cannot address the memory-mapped register space because it is beyond the first megabyte. Signed-off-by: Daniel Verkamp <daniel@drv.nu> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12ahci: Remove unused struct memberStefan Weil1-1/+0
Member variable is_read is written, but never read (contrary to its name). Remove it. Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-03Use new macro QEMU_PACKED for packed structuresStefan Weil1-3/+3
Most changes were made using these commands: git grep -la '__attribute__((packed))'|xargs perl -pi -e 's/__attribute__\(\(packed\)\)/QEMU_PACKED/' git grep -la '__attribute__ ((packed))'|xargs perl -pi -e 's/__attribute__ \(\(packed\)\)/QEMU_PACKED/' git grep -la '__attribute__((__packed__))'|xargs perl -pi -e 's/__attribute__\(\(__packed__\)\)/QEMU_PACKED/' git grep -la '__attribute__ ((__packed__))'|xargs perl -pi -e 's/__attribute__ \(\(__packed__\)\)/QEMU_PACKED/' git grep -la '__attribute((packed))'|xargs perl -pi -e 's/__attribute\(\(packed\)\)/QEMU_PACKED/' Whitespace in linux-user/syscall_defs.h was fixed manually to avoid warnings from scripts/checkpatch.pl. Manual changes were also applied to hw/pc.c. I did not fix indentation with tabs in block/vvfat.c. The patch will show 4 errors with scripts/checkpatch.pl. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-08-25block: explicit I/O accountingChristoph Hellwig1-0/+1
Decouple the I/O accounting from bdrv_aio_readv/writev/flush and make the hardware models call directly into the accounting helpers. This means: - we do not count internal requests from image formats in addition to guest originating I/O - we do not double count I/O ops if the device model handles it chunk wise - we only account I/O once it actuall is done - can extent I/O accounting to synchronous or coroutine I/O easily - implement I/O latency tracking easily (see the next patch) I've conveted the existing device model callers to the new model, device models that are using synchronous I/O and weren't accounted before haven't been updated yet. Also scsi hasn't been converted to the end-to-end accounting as I want to defer that after the pending scsi layer overhaul. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-08-08ahci: convert to memory APIAvi Kivity1-1/+1
Reviewed-by: Richard Henderson <rth@twiddle.net> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-04-07ich/ahci: convert to pci_register_bar_simple()Avi Kivity1-3/+0
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-02-07ahci: make number of ports runtime determinedAlexander Graf1-5/+5
Different AHCI controllers have a different number of ports, so the core shouldn't care about the amount of ports available. This patch makes the number of ports available to the AHCI core runtime configurable, allowing us to have multiple different AHCI implementations with different amounts of ports. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-02-07ahci: send init d2h fis on fis enableAlexander Graf1-0/+1
The drive sends a d2h init fis on initialization. Usually, the guest doesn't receive fises yet at that point though, so the delivery is deferred. Let's reflect that by sending the init fis on fis receive enablement. Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-02-07ahci: add license header in ahci.hAlexander Graf1-0/+23
Due to popular request, this patch adds a license header to ahci.h Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-02-07ahci: split ICH9 from coreSebastian Herbszt1-0/+309
There are multiple ahci devices out there. The currently implemented ich-9 is only one of the many. So let's split that one out into a separate file to stress the difference. Signed-off-by: Sebastian Herbszt <herbszt@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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