| Commit message (Collapse) | Author | Age | Files | Lines |
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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>
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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>
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This reverts commit 8ef9ea85a2cc1007eaefa53e6871f1f83bcef22d, reversing
changes made to 444dc48298c480e42e15a8fe676be737d8a6b2a1.
From Avi:
Please revert the entire pull (git revert 8ef9ea85a2cc1) while I work this
out - it isn't trivial.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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cfi02 is annoying in that is ignores some address bits; we probably
want explicit support in the memory API for that.
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
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qemu_malloc/qemu_free no longer exist after this commit.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This was done with:
sed -i 's/qemu_get_clock\>/qemu_get_clock_ns/' \
$(git grep -l 'qemu_get_clock\>' )
sed -i 's/qemu_new_timer\>/qemu_new_timer_ns/' \
$(git grep -l 'qemu_new_timer\>' )
after checking that get_clock and new_timer never occur twice
on the same line. There were no missed occurrences; however, even
if there had been, they would have been caught by the compiler.
There was exactly one false positive in qemu_run_timers:
- current_time = qemu_get_clock (clock);
+ current_time = qemu_get_clock_ns (clock);
which is of course not in this patch.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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As stated before, devices can be little, big or native endian. The
target endianness is not of their concern, so we need to push things
down a level.
This patch adds a parameter to cpu_register_io_memory that allows a
device to choose its endianness. For now, all devices simply choose
native endian, because that's the same behavior as before.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Add support to read manufacturer and device ID. For everything else (eg.
lock bits) 0 is returned.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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Value stored is never read.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Push TARGET_WORDS_BIGENDIAN dependency to board level.
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Buffer block writes to avoid flushing every word access onto backing
storage device. This significantly speeds up flash emulation for flashes
connected through an 8 or 16-bit bus combined with backing storage (-pflash).
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
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When wcycle is non zero the area is already opened for readable IO.
Avoiding the re-registration of the memarea significantly speeds up
the flash emulation. In particular for flashes connected through 8 or
16-bit buses.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
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Flashes connected through an 8 bit bus cannot handle write buffers
larger than 256 bytes.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
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Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
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In the very least, a change like this requires discussion on the list.
The naming convention is goofy and it causes a massive merge problem. Something
like this _must_ be presented on the list first so people can provide input
and cope with it.
This reverts commit 99a0949b720a0936da2052cb9a46db04ffc6db29.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Some not so obvious bits, slirp and Xen were left alone for the time
being.
Signed-off-by: malc <av1474@comtv.ru>
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Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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If a flash file of size smaller than the flash size is specified in
the -pflash option, the block driver returns error. But the
pflash_cfi0x ignores the error. This results in a flash content of all
zeroes. And the simulation aborts while executing code.
This patch adds the checks for errors from bdrv_read and escalates it
to the calling code.
Signed-off-by: Vijay Kumar B. <vijaykumar@bravegnu.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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The parameter is always zero except when registering the three internal
io regions (ROM, unassigned, notdirty). Remove the parameter to reduce
the API's power, thus facilitating future change.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
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Signed-off-by: Paul Brook <paul@codesourcery.com>
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Signed-off-by: Paul Brook <paul@cofdesourcery.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7067 c046a42c-6fe2-441c-8c8c-71466251a162
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Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6529 c046a42c-6fe2-441c-8c8c-71466251a162
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The attached patch updates the FSF address in the GPL/LGPL boilerplate
in most GPL/LGPLed files, and also in COPYING.LIB.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6162 c046a42c-6fe2-441c-8c8c-71466251a162
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5904 c046a42c-6fe2-441c-8c8c-71466251a162
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Signed-off-by: Paul Brook <paul@codesourcery.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5849 c046a42c-6fe2-441c-8c8c-71466251a162
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The current flash emulation code advertises a write buffer size of 16
bytes (1 << 4, according to offset 0x2A of the CFI table). This is
very small compared to normal write buffer sizes, and makes the
process of writing to the flash very slow (at least from U-Boot).
This patch increases this size to 2048 bytes. Except the modification
of the CFI table, the only other required modification is to use
"value" instead of "cmd" to set pfl->counter, because cmd is truncated
to the 8 lower bits of value, while the number of bytes for a write
can now be greater than 255 bytes.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5454 c046a42c-6fe2-441c-8c8c-71466251a162
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This patches slightly improves the debugging messages in pflash_read()
and pflash_write().
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5410 c046a42c-6fe2-441c-8c8c-71466251a162
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pfl->wcycle was set to 1 when the erase confirm command was set, which
lead to the next command being misinterpreted by Qemu:
pflash_write: Unimplemented flash cmd sequence (offset 00000000,
wcycle 0x1 cmd 0x20 value 0x70)
This patch fixes this issue by resetting pfl->wcycle to 0 on erase
confirm so that the next command is considered as a new one.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5409 c046a42c-6fe2-441c-8c8c-71466251a162
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5311 c046a42c-6fe2-441c-8c8c-71466251a162
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The IO index is now stored in its own field, instead of being wedged
into the vaddr field. This eliminates the ROMD and watchpoint host
pointer weirdness. The IO index space is expanded by 1 bit, and
several additional bits are made available in the TLB vaddr field.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4704 c046a42c-6fe2-441c-8c8c-71466251a162
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(Jean-Christophe PLAGNIOL-VILLARD)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4060 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3887 c046a42c-6fe2-441c-8c8c-71466251a162
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pflash_t is still ambiguous... perhaps both emulations should sit in a single file.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3794 c046a42c-6fe2-441c-8c8c-71466251a162
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Catch wrong/unknown NOR flash command sequences, by Thorsten Zitterell.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3684 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3667 c046a42c-6fe2-441c-8c8c-71466251a162
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