XBZRLE: Fix qemu crash when resize the xbzrle cache

Resizing the xbzrle cache during migration causes qemu-crash,
because the main-thread and migration-thread modify the xbzrle
cache size concurrently without lock-protection.

Signed-off-by: ChenLiang <chenliang88@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
qemu_file: Fix mismerge of "use fwrite() correctly"

Reviewers accepted v2 of the patch, but what got committed was v1,
with the R-bys for v2.  This is the v1->v2 followup fix.

[Amit:
 This fixes commit aded6539d983280212e08d09f14157b1cb4d58cc
]

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
vl: add system_wakeup_request tracepoint

It might be useful for tracing migration.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
migration: extend section_start/end traces

This adds @idstr to savevm_section_start and savevm_section_end
tracepoints.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
tcg-aarch64: Enable builtin disassembler

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Remove redundant CPU_TLB_ENTRY_BITS check

Removed from other targets in 56bbc2f967ce185fa1c5c39e1aeb5b68b26242e9.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Change all ext variables to TCGType

We assert that the values for _I32 and _I64 are 0 and 1 respectively.
This will make a couple of functions declared by tcg.c cleaner.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Set ext based on TCG_OPF_64BIT

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Don't handle mov/movi in tcg_out_op

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Hoist common argument loads in tcg_out_op

This reduces the code size of the function significantly.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Remove the shift_imm parameter from tcg_out_cmp

It was unused.  Let's not overcomplicate things before we need them.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Use intptr_t apropriately

As opposed to tcg_target_long.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Simplify tcg_out_ldst_9 encoding

At first glance the code appears to be using 1's compliment encoding,
a-la AArch32.  Except that the constant is "off", creating a complicated
split field 2's compliment encoding.

Much clearer to just use a normal mask and shift.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Remove nop from qemu_st slow path

Commit 023261ef851b22a04f6c5d76da870051031757a6 failed to remove a
nop that's no longer required.

Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20140308-1' into staging

migration/next for 20140308

# gpg: Signature made Sat 08 Mar 2014 21:26:01 GMT using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20140308-1:
  migration: extend section_start/end traces
  vl: add system_wakeup_request tracepoint
  qemu_file: Fix mismerge of "use fwrite() correctly"
  XBZRLE: Fix qemu crash when resize the xbzrle cache

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Merge remote-tracking branch 'remotes/rth/tcg-aarch-6-1' into staging

* remotes/rth/tcg-aarch-6-1:
  tcg-aarch64: Remove nop from qemu_st slow path
  tcg-aarch64: Simplify tcg_out_ldst_9 encoding
  tcg-aarch64: Use intptr_t apropriately
  tcg-aarch64: Remove the shift_imm parameter from tcg_out_cmp
  tcg-aarch64: Hoist common argument loads in tcg_out_op
  tcg-aarch64: Don't handle mov/movi in tcg_out_op
  tcg-aarch64: Set ext based on TCG_OPF_64BIT
  tcg-aarch64: Change all ext variables to TCGType
  tcg-aarch64: Remove redundant CPU_TLB_ENTRY_BITS check
  tcg-aarch64: Enable builtin disassembler

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>