Commit graph

101 commits

Author SHA1 Message Date
Marc-André Lureau ea53854a54 libqos: remove some leaks
qpci_device_find() returns allocated data, don't leak it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2016-02-02 13:28:58 +01:00
Peter Maydell 532392622c ide: Clean up includes
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-17-git-send-email-peter.maydell@linaro.org
2016-01-29 15:07:23 +00:00
John Snow c5620e658e libqos/ahci: organize header
Organize the prototypes into nice little sections.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-10-git-send-email-jsnow@redhat.com
2016-01-11 14:10:44 -05:00
John Snow 9350df7cea libqos/ahci: add ahci_exec
add ahci_exec, which is a standard purpose flexible command dispatcher
and tester for the AHCI device. The intent is to eventually cut down on
the absurd amount of boilerplate inside of the AHCI qtest.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-8-git-send-email-jsnow@redhat.com
2016-01-11 14:10:43 -05:00
John Snow b682d3a7cf libqos/ahci: allow nondata commands for ahci_io variants
These variants try to set a data offset, even if you don't specify one.
In the cases where the offset is zero and it's a nondata command, just
ignore the instruction.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-7-git-send-email-jsnow@redhat.com
2016-01-11 14:10:43 -05:00
John Snow b1b66c3b5e libqos: allow zero-size allocations
As part of streamlining the AHCI tests interface, it'd be nice
if specying a size of zero could be handled without special branches
and the allocator could handle this special case gracefully.

This lets me use the "ahci_io" macros for non-data commands, too,
which moves me forward towards shepherding all AHCI qtests into
a common set of commands in a unified pipeline.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-6-git-send-email-jsnow@redhat.com
2016-01-11 14:10:43 -05:00
John Snow b88641e236 libqos/ahci: Switch to mutable properties
ATAPI commands are, unfortunately, weird in that they can
be either DMA or PIO depending on a header bit. In order to
accommodate them, I'll need to make AHCI command properties
mutable so we can toggle between which "flavor" of ATAPI command
we want to test.

The default ATAPI transfer mechanism is PIO and the default
properties are adjusted accordingly.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-5-git-send-email-jsnow@redhat.com
2016-01-11 14:10:43 -05:00
John Snow d0b282a58c libqos/ahci: ATAPI identify
We need to say "hello!" to our ATAPI friends
in a slightly different manner.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-4-git-send-email-jsnow@redhat.com
2016-01-11 14:10:42 -05:00
John Snow 54d268b26a libqos/ahci: ATAPI support
Add pathways to tolerate ATAPI commands.

Notably, unlike ATA, each SCSI command's layout is a little different,
so support will have to be patched in for each command as we want to
test them in e.g. ahci_command_set_sizes and ahci_command_set_offset.

For now, I'm adding support for 0x28, READ (10).

[Maintainer edit: replaced type-punning with stl_be_p(). --js]

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1452282920-21550-3-git-send-email-jsnow@redhat.com
2016-01-11 14:10:42 -05:00
John Snow cb11e7b2f3 libqos: add qemu-img presence check
To allow tests to optionally exercise additional tests
that require the qemu-img tool that may not be present
in all builds.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1447439479-16775-3-git-send-email-jsnow@redhat.com
2015-11-13 14:31:42 -05:00
John Snow 3d937150dc qtest/ahci: fix redundant assertion
Fixes https://bugs.launchpad.net/qemu/+bug/1497711

(!ncq || (ncq && lba48)) is the same as
(!ncq || lba48).

The intention is simply: "If a command is NCQ,
it must also be LBA48."

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1442868929-17777-1-git-send-email-jsnow@redhat.com
2015-10-05 12:00:55 -04:00
John Snow ab4f705751 qtest/ahci: export generate_pattern
Share the pattern function for ide and ahci test.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1441926555-19471-3-git-send-email-jsnow@redhat.com
2015-09-18 10:58:56 -04:00
Jean-Christophe Dubois 7f3986278b i.MX: Add qtest support for I2C device emulator.
This is using a ds1338 RTC chip on the I2C bus. This RTC chip is
not present on the real 3DS PDK board.

Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net>
Acked-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id: 05601683a2a95c881cbc9f22651a044d969bd0ae.1441057361.git.jcd@tribudubois.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-07 10:39:31 +01:00
John Snow 9ab9993f71 libqos/ahci: fix ahci_write_fis for ncq on ppc64
Don't try to correct the endianness of NCQ commands, which do not
use any fields wider than a single byte.

This corrects the /x86_64/ahci/io/ncq/simple test (and others)
for ppc64 BE hosts.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: John Snow <jsnow@redhat.com>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1436210229-4118-2-git-send-email-jsnow@redhat.com
2015-07-08 11:46:16 -04:00
John Snow 26ad004585 qtest/ahci: simple ncq data test
Test the NCQ pathways for a simple IO RW test.
Also, test that libqos doesn't explode when
running NCQ commands :)

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-16-git-send-email-jsnow@redhat.com
2015-07-04 02:06:04 -04:00
John Snow e38cc93aca libqos/ahci: Force all NCQ commands to be LBA48
NCQ commands are LBA48 by definition.

See SATA 3.2 13.6.4.1 "READ FPDMA QUEUED", or
    SATA 3.2 13.6.5.1 "WRITE FPDMA QUEUED."

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-15-git-send-email-jsnow@redhat.com
2015-07-04 02:06:04 -04:00
John Snow a8973ff50a libqos/ahci: set the NCQ tag on command_commit
NCQ commands have the concept of a "TAG" that they need to set,
but in the AHCI world, it is mandated that the TAG always match
the command slot that you executed the NCQ from.

See AHCI 9.3.1.1.5.2 "Native Queued Commands".

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-14-git-send-email-jsnow@redhat.com
2015-07-04 02:06:04 -04:00
John Snow 359790c254 libqos/ahci: adjust expected NCQ interrupts
NCQ commands will expect the SDBS interrupt,
and in the normative case, do not expect to see
a D2H Register FIS unless something went wrong.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-13-git-send-email-jsnow@redhat.com
2015-07-04 02:06:04 -04:00
John Snow 4de484698b libqos/ahci: edit wait to be ncq aware
The wait command should check to make sure SACT is clear as well
as the Command Issue register.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-12-git-send-email-jsnow@redhat.com
2015-07-04 02:06:03 -04:00
John Snow cb45304108 libqos/ahci: add NCQ frame support
NCQ frames are generated a little differently than
their non-NCQ cousins. Add support for them.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-11-git-send-email-jsnow@redhat.com
2015-07-04 02:06:03 -04:00
John Snow 40d29928ca libqos/ahci: fix cmd_sanity for ncq
NCQ commands should not / do not update the byte count
in the command header post command, so this field is
meaningless for NCQ tests.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1435016308-6150-10-git-send-email-jsnow@redhat.com
2015-07-04 02:06:03 -04:00
John Snow 95ea663693 libqos/ahci: fix memory management bugs
There's a handful of trivial bugs in the libqos/ahci functions,
squish them together.

- Zero cached pointers after freeing them
- The Command List Buffer is an array of 32x 32 byte structures, not
  32x 8 byte pointers -- it's 1MiB, not 256 bytes. Zero it ALL.
- Free the correct command in ahci_pick_cmd.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1434470575-21625-4-git-send-email-jsnow@redhat.com
2015-07-04 02:06:02 -04:00
Fam Zheng bea2f0982b libqos: Complete virtio device ID definition list
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-17 16:03:47 +02:00
Fam Zheng 28452758c4 libqos: Allow calling guest_free on NULL pointer
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-06-17 16:03:47 +02:00
John Snow 91d0374a7f libqos/ahci: Swap memread/write with bufread/write
Where it makes sense, use the new faster primitives.
For generally small reads/writes such as for the PRDT
and FIS packets, stick with the more wasteful but
easier to debug memread/memwrite.

For ahci-test (before migration tests):
With this patch:
real    0m3.675s
user    0m2.582s
sys     0m1.718s

Without any qtest protocol improvements:
real    0m14.171s
user    0m12.072s
sys     0m12.527s

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1430864578-22072-6-git-send-email-jsnow@redhat.com
2015-05-22 15:58:22 -04:00
John Snow 88e21f9485 qtest/ahci: add migrate dma test
Write to one guest, migrate, and then read from the other.
adjust ahci_io to clear any buffers it creates, so that we
can use ahci_io safely on both guests knowing we are using
empty buffers and not accidentally re-using data.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1430417242-11859-7-git-send-email-jsnow@redhat.com
2015-05-22 15:58:22 -04:00
John Snow 085248ae87 libqos: Add migration helpers
libqos.c:
    -set_context for addressing which commands go where
    -migrate performs the actual migration

malloc.c:
    - Structure of the allocator is adjusted slightly with
      a second-tier malloc to make swapping around the allocators
      easy when we "migrate" the lists from the source to the destination.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1430417242-11859-4-git-send-email-jsnow@redhat.com
2015-05-22 15:58:22 -04:00
John Snow 455e861cc6 libqos/ahci: Fix sector set method
|| probably does not mean the same thing as |.

Additionally, allow users to submit a prd_size of 0
to indicate that they'd like to continue using the default.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1430417242-11859-3-git-send-email-jsnow@redhat.com
2015-05-22 15:58:22 -04:00
John Snow 008b6e123f libqos/ahci: Add halted command helpers
Sometimes we want a command to halt the VM instead
of complete successfully, so it'd be nice to let the
libqos/ahci functions cope with such scenarios.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1430417242-11859-2-git-send-email-jsnow@redhat.com
2015-05-22 15:58:22 -04:00
Stefan Weil 631b22ea20 misc: Fix new collection of typos
All of them were reported by codespell.
Most typos are in comments, one is in an error message.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-04-30 16:05:48 +03:00
John Snow 72c85e949f libqos: add blkdebug_prepare_script
Pull this helper out of ide-test and into libqos,
to be shared with ahci-test.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1426018503-821-6-git-send-email-jsnow@redhat.com
2015-04-28 15:27:51 -04:00
John Snow debaaa114a qtest/ahci: Allow override of default CLI options
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1426018503-821-3-git-send-email-jsnow@redhat.com
2015-04-28 15:27:51 -04:00
John Snow 727be1a755 qtest/ahci: test different disk sectors
Test sector offset 0, 1, and the last sector(s)
in LBA28 and LBA48 modes.

Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1426274523-22661-3-git-send-email-jsnow@redhat.com
2015-04-28 15:27:51 -04:00
John Snow 122fdf2d88 qtest/ahci: add qcow2 support to ahci-test
This will enable the testing of high offsets without
wasting a lot of disk space, and does not impact the
previous tests.

mkimg and mkqcow2 are added to libqos for other tests.

Signed-off-by: John Snow <jsnow@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1426274523-22661-2-git-send-email-jsnow@redhat.com
2015-04-28 15:27:51 -04:00
Marc Marí 1e34cf9681 libqos: Solve bug in interrupt checking when using MSIX in virtio-pci.c
The MSIX interrupt was always acked without checking its value, which caused a
race condition. If the ISR was raised between the read and the acking, the ISR
was never detected and it timed out.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Tested-by: John Snow <jsnow@redhat.com>
Message-id: 1424795655-16952-1-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:23 +01:00
John Snow f9f963e0fb libqos/ahci: add ahci command helpers
ahci_command_set_flags:  Set additional flags in the command header.
ahci_command_clr_flags:  Clear flags from the command header.
ahci_command_set_offset: Change the IO sector from 0.
ahci_command_adjust:     Adjust many values simultaneously.

To be used to adjust the command header if the default values/guesses
were incorrect or undesirable.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1424905602-24715-4-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

[ kwolf: Fixed conflicting prototype for ahci_command_adjust() ]

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:23 +01:00
John Snow 4a42f6d408 libqos/ahci: Zero-fill AHCI headers
Even though it's just the reserved space, make sure they're zeroes.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1424905602-24715-2-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:23 +01:00
Marc Marí 0a6ed70006 libqos: Add virtio MMIO support
Add virtio MMIO support.
Add virtio-blk-test MMIO test case.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424812915-25728-6-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:20 +01:00
Marc Marí 870a306dec libqos: Add malloc generic
This malloc is a basic interface implementation that works for any platform.
It should be replaced in the future for a real malloc implementation for each
of the platforms.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424812915-25728-5-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:20 +01:00
Marc Marí 50311a81f8 libqos: Remove PCI assumptions in constants of virtio driver
Convert PCI-specific constants names of libqos virtio driver.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424812915-25728-4-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:20 +01:00
Marc Marí 728312b8c8 libqos: Change use of pointers to uint64_t in virtio
Convert use of pointers in functions of virtio to uint64_t in order to make it
platform-independent.

Add casting from pointers (in PCI functions) to uint64_t and vice versa through
uintptr_t.

Signed-off-by: Marc Marí <marc.mari.barcelo@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1424812915-25728-2-git-send-email-marc.mari.barcelo@gmail.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-03-10 14:02:20 +01:00
John Snow 259342d34d libqos/ahci: Add ahci_clean_mem
Clean up guest memory being used in ahci_clean_mem, to be
called during ahci_shutdown. With all guest memory leaks removed,
add an option to the allocator to throw an assertion if a leak
occurs.

This test adds some sanity to both the AHCI library and the
allocator.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423158090-25580-18-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow ae02962017 libqos/ahci: add ahci_io
ahci_io is a wrapper around ahci_guest_io that takes a pointer to host
memory instead, and will create a guest memory buffer and copy the data
to/from as needed and as appropriate for a read/write command, such that
after a read, the guest data will be in a host buffer, and for a write,
the data will be transmitted to guest memory prior to the block operation.

Now that we have all the syntactic sugar functions in place for AHCI,
we can convert the identify test to be very, very short.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423158090-25580-17-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow 113221956c libqos/ahci: Add ahci_guest_io
ahci_guest_io is a shorthand function that will, in one shot,
execute a data command on the guest to the specified guest buffer
location, in the requested amount.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423158090-25580-16-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow cbc97569dc libqos/ahci: add ahci command size setters
Adds setters for size, prd_size and both via set_sizes.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1423158090-25580-15-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow ea41deb602 libqos/ahci: add ahci command verify
Helps to verify that a command completed successfully.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1423158090-25580-14-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow 64a5a272e3 libqos/ahci: add ahci command functions
This patch adds the AHCICommand structure, and a set of functions to
operate on the structure.

ahci_command_create - Initialize and create a new AHCICommand in memory
ahci_command_free - Destroy this object.
ahci_command_set_buffer - Set where the guest memory DMA buffer is.
ahci_command_commit - Write this command to the AHCI HBA.
ahci_command_issue - Issue the committed command synchronously.
ahci_command_issue_async - Issue the committed command asynchronously.
ahci_command_wait - Wait for an asynchronous command to finish.
ahci_command_slot - Get the number of the command slot we committed to.

Helpers:
size_to_prdtl       - Calculate the required minimum PRDTL size from
                      a buffer size.
ahci_command_find   - Given an ATA command mnemonic, look it up in the
                      properties table to obtain info about the command.
command_header_init - Initialize the command header with sane values.
command_table_init  - Initialize the command table with sane values.

[Peter Maydell <peter.maydell@linaro.org> reported the following clang
warning:

  tests/libqos/ahci.c:598:3: warning: redefinition
  of typedef 'AHCICommand' is a C11 feature
      [-Wtypedef-redefinition]
  } AHCICommand;

I have replaced typedef struct ... AHCICommand; with struct ... ;
--Stefan]

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1423158090-25580-13-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow 716b64079c libqos/ahci: Add ide cmd properties
Add a structure that defines some properties of various IDE commands.
These will be used to simplify the interface to the libqos AHCI calls,
lessening the redundancy of specifying and respecifying properties of
commands to various helper functions.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1423158090-25580-12-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow 52515766f1 qtest/ahci: add ahci_write_fis
Similar to ahci_set_command_header, add a helper that takes an
in-memory representation of a command FIS and writes it to guest
memory, handling endianness as-needed.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1423158090-25580-11-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00
John Snow 36e367261c qtest/ahci: Demagic ahci tests.
Add human-readable command names and other miscellaneous #defines
to help make the code more readable.

Some of these definitions are not yet used in this current series,
but for convenience and sanity they have been lumped together here,
as it's more trouble than it is worth in a test suite to hand-pick,
one-by-one, which preprocessor definitions are useful per-each test.

These definitions include:

ATA Command Mnemonics
Current expected AHCI sector size
FIS magic bytes
REG_H2D_FIS flags
Command Header flags

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1423158090-25580-10-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-02-16 15:07:17 +00:00