stm32f205_timer: Add the stm32f205 Timer

This patch adds the stm32f205 timers: TIM2, TIM3, TIM4 and TIM5
to QEMU.

---CHANGELOG---
PUBLIC
V4:
 - Update timer units again
    - Thanks to Peter C
V3:
 - Update debug statements
 - Correct the units for timer_mod
 - Correctly set timer_offset from resets
V2:
 - Reorder the Makefile config
 - Fix up the debug printing
 - Correct the timer event trigger
Changes from RFC:
 - Small changes to functionality and style. Thanks to Peter C
 - Rename to make the timer more generic
 - Split the config settings to device level
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
stm32f205_USART: Add the stm32f205 USART Controller

This patch adds the stm32f205 USART controller
(UART also uses the same controller).

---CHANGELOG---
PUBLIC
V3:
 - Update debug printing
V2:
 - Drop charecters if the device is not enabled
    - Thanks to Peter C
Changes from RFC:
 - Small changes thanks to Peter C
 - USART now implements QEMU blocking functions
 - Split the config settings to device level
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
stm32f205_SYSCFG: Add the stm32f205 SYSCFG

This patch adds the stm32f205 System Configuration
Controller. This is used to configure what memory is mapped
at address 0 (although that is not supported) as well
as configure how the EXTI interrupts work (also not
supported at the moment).

This device is not required for basic examples, but more
complex systems will require it (as well as the EXTI device)

---CHANGELOG---
PUBLIC
V3:
 - Update debug printing
Changes from RFC:
 - Split the config settings to device level
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
target_arm: Remove memory region init from armv7m_init

This patch moves the memory region init code from the
armv7m_init function to the stellaris_init function

---CHANGELOG---
PUBLIC
V3:
 - Rename the flash_size argument to mem_size
 - Remove the sram_size and related code
    - Thanks to Peter C
V2:
 - Change the memory region names to match the machine
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
target_arm: Parameterise the irq lines for armv7m_init

This patch allows the board to specifiy the number of NVIC interrupt
lines when using armv7m_init.

---CHANGELOG---
PUBLIC
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
target_arm: Change the reset values based on the ELF entry

The Netduino 2 machine won't run unless the reset_pc is based
on the ELF entry point.

---CHANGELOG---
PUBLIC
V2:
 - Malloc straight away, thanks to Peter C
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
stm32f205: Add the stm32f205 SoC

This patch adds the stm32f205 SoC. This will be used by the
Netduino 2 to create a machine.

---CHANGELOG---
PUBLIC
Changes from RFC:
 - Small changes thanks to Peter C
 - Split the config settings to device level
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
netduino2: Add the Netduino 2 Machine

This patch adds the Netduino 2 Machine.

This is a Cortex-M3 based machine. Information can be found at:
http://www.netduino.com/netduino2/specs.htm

---CHANGELOG---
PUBLIC
Changes from RFC:
 - Remove CPU passthrough
---END---

Signed-off-by: Alistair Francis <alistair23@gmail.com>
tcg-sparc: Use ADDXC in addsub2_i64

On T4 and newer Sparc chips we have an add-with-carry insn
that takes its input from %xcc instead of %icc.

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-sparc: Fix setcond_i32 uninitialized value

We failed to swap c1 and c2 correctly for NE c2 == 0.

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-sparc: Use ADDXC in setcond_i64

Similar to the ADDC tricks we use in setcond_i32.

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-sparc: Rename ADDX/SUBX insns

The pre-v9 ADDX/SUBX insns were renamed ADDC/SUBC for v9.
Standardizing on the v9 name makes things less confusing.

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-sparc: Use UMULXHI instruction

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg-aarch64: Use 32-bit loads for qemu_ld_i32

The "old" qemu_ld opcode did not specify the size of the result,
and so we had to assume full register width.  With the new opcodes,
we can narrow the result.

Signed-off-by: Richard Henderson <rth@twiddle.net>
qemu/compiler: Define QEMU_ARTIFICIAL

The combination of always_inline + artificial allows tiny inline
functions to be written that do not interfere with debugging.
In particular, gdb will not step into an artificial function.

The always_inline attribute was introduced in gcc 4.2,
and the artificial attribute was introduced in gcc 4.3.

Signed-off-by: Richard Henderson <rth@twiddle.net>
tcg: Always enable TCGv type checking

Instead of using structures, which imply some amount of overhead
on certain ABIs, use pointer types.

This actually reduces the size of the binaries vs a NON-debug
build on ppc64 and x86_64, due to a reduction in the number of
sign-extension insns.

Signed-off-by: Richard Henderson <rth@twiddle.net>
loader: g_realloc(p, 0) frees and returns NULL, simplify

Once upon a time, it was decided that qemu_realloc(ptr, 0) should
abort.  Switching to glib retired that bright idea.  A bit of code
that was added to cope with it (commit 3e372cf) is still around.  Bury
it.

See also commit 6528499.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Revert "virtio-pci: fix migration for pci bus master"

This reverts commit 4d43d3f3c8147ade184df9a1e9e82826edd39e19.

Reported to break PPC guests.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
pci-hotplug-old: avoid losing error message

When scsi_bus_legacy_add_drive() produces an error,
we will lose the error message. Using error_report
to report it.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
pc-dimm: Don't check dimm->node when there is non-NUMA config

It should not break memory hotplug feature if there is non-NUMA option.

This patch would also allow to use pc-dimm as replacement for initial memory
for non-NUMA configs.

Note: After this patch, the memory hotplug can work normally for Linux guest OS
when there is non-NUMA option and NUMA option. But not support Windows guest OS
to hotplug memory with no-NUMA config, actully, it's Windows limitation.

Reviewed-By: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>