Commit Graph

40 Commits

Author SHA1 Message Date
Markus Armbruster
12e9493df9 Include hw/boards.h a bit less
hw/boards.h pulls in almost 60 headers.  The less we include it into
headers, the better.  As a first step, drop superfluous inclusions,
and downgrade some more to what's actually needed.  Gets rid of just
one inclusion into a header.

Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20190812052359.30071-23-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster
a27bd6c779 Include hw/qdev-properties.h less
In my "build everything" tree, changing hw/qdev-properties.h triggers
a recompile of some 2700 out of 6600 objects (not counting tests and
objects that don't depend on qemu/osdep.h).

Many places including hw/qdev-properties.h (directly or via hw/qdev.h)
actually need only hw/qdev-core.h.  Include hw/qdev-core.h there
instead.

hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h
and hw/qdev-properties.h, which in turn includes hw/qdev-core.h.
Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h.

While there, delete a few superfluous inclusions of hw/qdev-core.h.

Touching hw/qdev-properties.h now recompiles some 1200 objects.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16 13:31:53 +02:00
Markus Armbruster
64552b6be4 Include hw/irq.h a lot less
In my "build everything" tree, changing hw/irq.h triggers a recompile
of some 5400 out of 6600 objects (not counting tests and objects that
don't depend on qemu/osdep.h).

hw/hw.h supposedly includes it for convenience.  Several other headers
include it just to get qemu_irq and.or qemu_irq_handler.

Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to
qemu/typedefs.h, and then include hw/irq.h only where it's still
needed.  Touching it now recompiles only some 500 objects.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190812052359.30071-13-armbru@redhat.com>
2019-08-16 13:31:52 +02:00
Markus Armbruster
a8d2532645 Include qemu-common.h exactly where needed
No header includes qemu-common.h after this commit, as prescribed by
qemu-common.h's file comment.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190523143508.25387-5-armbru@redhat.com>
[Rebased with conflicts resolved automatically, except for
include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c
block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c
target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h
target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h
target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h
target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and
net/tap-bsd.c fixed up]
2019-06-12 13:20:20 +02:00
Philippe Mathieu-Daudé
98e4f4fdb8 hw/arm/exynos4210: QOM'ify the Exynos4210 SoC
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20190520214342.13709-5-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-23 14:47:44 +01:00
Guenter Roeck
59520dc65e hw/arm/exynos4210: Add DMA support for the Exynos4210
QEMU already supports pl330. Instantiate it for Exynos4210.

Relevant part of Linux arch/arm/boot/dts/exynos4.dtsi:

/ {
    soc: soc {
        amba {
            pdma0: pdma@12680000 {
                compatible = "arm,pl330", "arm,primecell";
                reg = <0x12680000 0x1000>;
                interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&clock CLK_PDMA0>;
                clock-names = "apb_pclk";
                #dma-cells = <1>;
                #dma-channels = <8>;
                #dma-requests = <32>;
            };
            pdma1: pdma@12690000 {
                compatible = "arm,pl330", "arm,primecell";
                reg = <0x12690000 0x1000>;
                interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&clock CLK_PDMA1>;
                clock-names = "apb_pclk";
                #dma-cells = <1>;
                #dma-channels = <8>;
                #dma-requests = <32>;
            };
            mdma1: mdma@12850000 {
                compatible = "arm,pl330", "arm,primecell";
                reg = <0x12850000 0x1000>;
                interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
                clocks = <&clock CLK_MDMA>;
                clock-names = "apb_pclk";
                #dma-cells = <1>;
                #dma-channels = <8>;
                #dma-requests = <1>;
            };
        };
    };
};

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190520214342.13709-4-philmd@redhat.com
[PMD: Do not set default qdev properties, create the controllers in the SoC
      rather than the board (Peter Maydell), add dtsi in commit message]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-05-23 14:47:44 +01:00
Peter Maydell
12ec8bd51e arm: Rename hw/arm/arm.h to hw/arm/boot.h
The header file hw/arm/arm.h now includes only declarations
relating to hw/arm/boot.c functionality. Rename it accordingly,
and adjust its header comment.

The bulk of this commit was created via
 perl -pi -e 's|hw/arm/arm.h|hw/arm/boot.h|' hw/arm/*.c include/hw/arm/*.h

In a few cases we can just delete the #include:
hw/arm/msf2-soc.c, include/hw/arm/aspeed_soc.h and
include/hw/arm/bcm2836.h did not require it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190516163857.6430-4-peter.maydell@linaro.org
2019-05-23 14:47:43 +01:00
Peter Maydell
76a82ced11 hw/arm/exynos4210: Zero memory allocated for Exynos4210State
In exynos4210_init() we allocate memory for an Exynos4210State
struct. Generally devices can assume that the memory allocated
for their state struct is zero-initialized; we broke that
assumption here by using g_new(). Use g_new0() instead.
(In particular, some code assumes that the various irq arrays
in the Exynos4210Irq sub-struct are zero-initialized.)

In the longer term, this code should be QOMified, and then
the struct memory will be allocated elsewhere and by functions
which always zero-initalize it; but for 3.1 this is a
simple fix.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20181105151132.13884-1-peter.maydell@linaro.org
2018-11-06 11:32:14 +00:00
Bartlomiej Zolnierkiewicz
5561adf062 hw/arm/exynos4210: fix Exynos4210 UART support
commit 97274d0c05 ("hw/char/exynos4210_uart.c: Remove unneeded
handling of NULL chardev") broke Exynos4210 support as it removed
NULL 'Chardev *chr' handling from exynos4210_uart_create() and
currently exynos4210_init() always passes NULL as 'Chardev *chr'
argument to exynos4210_uart_create() calls. Fix it by adding
missing serial_hd() calls to exynos4210_init().

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 9310418.Wg32kryeWE@amdc3058
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-09-25 14:14:07 +01:00
Laurent Vivier
4a4ff4c58f Remove unnecessary variables for function return value
Re-run Coccinelle script scripts/coccinelle/return_directly.cocci

Signed-off-by: Laurent Vivier <lvivier@redhat.com>
ppc part
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2018-05-20 08:48:13 +03:00
Philippe Mathieu-Daudé
2edb443471 hw/arm/exynos4210: add a comment about a very similar SDHCI (Spec. v2)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180208164818.7961-16-f4bug@amsat.org>
2018-02-13 16:15:08 +01:00
Philippe Mathieu-Daudé
3c675da5be hw/arm/exynos4210: access the 64-bit capareg with qdev_prop_set_uint64()
We only set a 32-bit value, but this is a good practice in case this
code is used as reference.

(missed in 5efc9016e5)

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180208164818.7961-15-f4bug@amsat.org>
2018-02-13 16:15:08 +01:00
Igor Mammedov
ba1ba5cca3 arm: drop intermediate cpu_model -> cpu type parsing and use cpu type directly
there are 2 use cases to deal with:
  1: fixed CPU models per board/soc
  2: boards with user configurable cpu_model and fallback to
     default cpu_model if user hasn't specified one explicitly

For the 1st
  drop intermediate cpu_model parsing and use const cpu type
  directly, which replaces:
     typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
     object_new(typename)
  with
     object_new(FOO_CPU_TYPE_NAME)
  or
     cpu_generic_init(BASE_CPU_TYPE, "my cpu model")
  with
     cpu_create(FOO_CPU_TYPE_NAME)

as result 1st use case doesn't have to invoke not necessary
translation and not needed code is removed.

For the 2nd
 1: set default cpu type with MachineClass::default_cpu_type and
 2: use generic cpu_model parsing that done before machine_init()
    is run and:
    2.1: drop custom cpu_model parsing where pattern is:
       typename = object_class_get_name(
           cpu_class_by_name(TYPE_ARM_CPU, cpu_model))
       [parse_features(typename, cpu_model, &err) ]

    2.2: or replace cpu_generic_init() which does what
         2.1 does + create_cpu(typename) with just
         create_cpu(machine->cpu_type)
as result cpu_name -> cpu_type translation is done using
generic machine code one including parsing optional features
if supported/present (removes a bunch of duplicated cpu_model
parsing code) and default cpu type is defined in an uniform way
within machine_class_init callbacks instead of adhoc places
in boadr's machine_init code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1505318697-77161-6-git-send-email-imammedo@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-09-19 09:09:32 -03:00
Philippe Mathieu-Daudé
c2de81e2b2 hw/arm: use defined type name instead of hard-coded string
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-09-04 15:21:53 +01:00
Peter Maydell
98a99ce084 hw: Use new memory_region_init_{ram, rom, rom_device}() functions
Use the new functions memory_region_init_{ram,rom,rom_device}()
instead of manually calling the _nomigrate() version and then
vmstate_register_ram_global().

Patch automatically created using coccinelle script:
 spatch --in-place -sp_file scripts/coccinelle/memory-region-init-ram.cocci -dir hw

(As it turns out, there are no instances of the rom and
rom_device functions that are caught by this script.)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-8-git-send-email-peter.maydell@linaro.org
2017-07-14 17:59:42 +01:00
Peter Maydell
1cfe48c1ce memory: Rename memory_region_init_ram() to memory_region_init_ram_nomigrate()
Rename memory_region_init_ram() to memory_region_init_ram_nomigrate().
This leaves the way clear for us to provide a memory_region_init_ram()
which does handle migration.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1499438577-7674-4-git-send-email-peter.maydell@linaro.org
2017-07-14 17:59:42 +01:00
Krzysztof Kozlowski
499ca13792 hw/misc: Add Exynos4210 Pseudo Random Number Generator
Add emulation for Exynos4210 Pseudo Random Number Generator which could
work on fixed seeds or with seeds provided by True Random Number
Generator block inside the SoC.

Implement only the fixed seeds part of it in polling mode (no
interrupts).

Emulation tested with two independent Linux kernel exynos-rng drivers:
1. New kcapi-rng interface (targeting Linux v4.12),
2. Old hwrng inteface
   # echo "exynos" > /sys/class/misc/hw_random/rng_current
   # dd if=/dev/hwrng of=/dev/null bs=1 count=16

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Message-id: 20170425180609.11004-1-krzk@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: wrapped a few overlong lines; more efficient implementation
 of exynos4210_rng_seed_ready()]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-07-11 11:21:26 +01:00
Krzysztof Kozlowski
9e883790dd hw/arm/exynos: Use type define instead of hard-coded a9mpcore_priv string
Use a define for a9mpcore_priv device type name instead of hard-coded
string.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13 14:56:58 +01:00
Krzysztof Kozlowski
310150c000 hw/arm/exynos: Declare local variables in some order
Bring some more readability by declaring local function variables: first
initialized ones and then the rest (with reversed-christmas-tree order).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13 14:56:57 +01:00
Krzysztof Kozlowski
a2f2f6249b hw/arm/exynos: Move DRAM initialization next boards
Before QOM-ifying the Exynos4 SoC model, move the DRAM initialization
from exynos4210.c to exynos4_boards.c because DRAM is board specific,
not SoC.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-06-13 14:56:57 +01:00
Krzysztof Kozlowski
d77b71c2a4 hw/arm/exynos: Add generic SDHCI devices
Exynos4210 has four SD/MMC controllers supporting:
 - SD Standard Host Specification Version 2.0,
 - MMC Specification Version 4.3,
 - SDIO Card Specification Version 2.0,
 - DMA and ADMA.

Add emulation of SDHCI devices which allows accessing storage through SD
cards. Differences from real hardware:
 - Devices are shipped with eMMC memory, not SD card.
 - The Exynos4210 SDHCI has few more registers, e.g. for
   controlling the clocks, additional status (0x80, 0x84, 0x8c). These
   are not implemented.

Testing on smdkc210 machine with "-drive file=FILE,if=sd,bus=0,index=2".

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Message-id: 20170422190709.8676-1-krzk@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-04-25 11:17:49 +01:00
Krzysztof Kozlowski
f3a6339a5b hw/arm/exynos: Fix proper mapping of CPUs by providing real cluster ID
The Exynos4210 has cluster ID 0x9 in its MPIDR register (raw value
0x8000090x).  If this cluster ID is not provided, then Linux kernel
cannot map DeviceTree nodes to MPIDR values resulting in kernel
warning and lack of any secondary CPUs:

    DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map
    ...
    smp: Bringing up secondary CPUs ...
    smp: Brought up 1 node, 1 CPU
    SMP: Total of 1 processors activated (24.00 BogoMIPS).

Provide a cluster ID so Linux will see proper MPIDR and will try to
bring the secondary CPU online.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Message-id: 20170226200142.31169-2-krzk@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-28 12:08:20 +00:00
Krzysztof Kozlowski
1e0228fd20 hw/arm/exynos: Fix Linux kernel division by zero for PLLs
Without any clock controller, the Linux kernel was hitting division by
zero during boot or with clk_summary:
[    0.000000] [<c031054c>] (unwind_backtrace) from [<c030ba6c>] (show_stack+0x10/0x14)
[    0.000000] [<c030ba6c>] (show_stack) from [<c05b2660>] (dump_stack+0x88/0x9c)
[    0.000000] [<c05b2660>] (dump_stack) from [<c05b11a4>] (Ldiv0+0x8/0x10)
[    0.000000] [<c05b11a4>] (Ldiv0) from [<c06ad1e0>] (samsung_pll45xx_recalc_rate+0x58/0x74)
[    0.000000] [<c06ad1e0>] (samsung_pll45xx_recalc_rate) from [<c0692ec0>] (clk_register+0x39c/0x63c)
[    0.000000] [<c0692ec0>] (clk_register) from [<c125d360>] (samsung_clk_register_pll+0x2e0/0x3d4)
[    0.000000] [<c125d360>] (samsung_clk_register_pll) from [<c125d7e8>] (exynos4_clk_init+0x1b0/0x5e4)
[    0.000000] [<c125d7e8>] (exynos4_clk_init) from [<c12335f4>] (of_clk_init+0x17c/0x210)
[    0.000000] [<c12335f4>] (of_clk_init) from [<c1204700>] (time_init+0x24/0x2c)
[    0.000000] [<c1204700>] (time_init) from [<c1200b2c>] (start_kernel+0x24c/0x38c)
[    0.000000] [<c1200b2c>] (start_kernel) from [<4020807c>] (0x4020807c)

Provide stub for clock controller returning reset values for PLLs.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Message-id: 20170226200142.31169-1-krzk@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2017-02-28 12:08:20 +00:00
Paolo Bonzini
4771d756f4 hw: explicitly include qemu-common.h and cpu.h
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:17 +01:00
Markus Armbruster
da34e65cb4 include/qemu/osdep.h: Don't include qapi/error.h
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the
Error typedef.  Since then, we've moved to include qemu/osdep.h
everywhere.  Its file comment explains: "To avoid getting into
possible circular include dependencies, this file should not include
any other QEMU headers, with the exceptions of config-host.h,
compiler.h, os-posix.h and os-win32.h, all of which are doing a
similar job to this file and are under similar constraints."
qapi/error.h doesn't do a similar job, and it doesn't adhere to
similar constraints: it includes qapi-types.h.  That's in excess of
100KiB of crap most .c files don't actually need.

Add the typedef to qemu/typedefs.h, and include that instead of
qapi/error.h.  Include qapi/error.h in .c files that need it and don't
get it now.  Include qapi-types.h in qom/object.h for uint16List.

Update scripts/clean-includes accordingly.  Update it further to match
reality: replace config.h by config-target.h, add sysemu/os-posix.h,
sysemu/os-win32.h.  Update the list of includes in the qemu/osdep.h
comment quoted above similarly.

This reduces the number of objects depending on qapi/error.h from "all
of them" to less than a third.  Unfortunately, the number depending on
qapi-types.h shrinks only a little.  More work is needed for that one.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
[Fix compilation without the spice devel packages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-22 22:20:15 +01:00
Peter Maydell
12b167226f hw/arm: 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: 1449505425-32022-4-git-send-email-peter.maydell@linaro.org
2016-01-18 16:33:32 +00:00
Markus Armbruster
007b06578a Use error_fatal to simplify obvious fatal errors
Done with this Coccinelle semantic patch:

    @@
    type T;
    identifier FUN, RET;
    expression list ARGS;
    expression ERR, EC;
    @@
    (
    -    T RET = FUN(ARGS, &ERR);
    +    T RET = FUN(ARGS, &error_fatal);
    |
    -    RET = FUN(ARGS, &ERR);
    +    RET = FUN(ARGS, &error_fatal);
    |
    -    FUN(ARGS, &ERR);
    +    FUN(ARGS, &error_fatal);
    )
    -    if (ERR != NULL) {
    -        error_report_err(ERR);
    -        exit(EC);
    -    }

This is actually a more elegant version of my initial semantic patch
by courtesy of Eduardo.

It leaves dead Error * variables behind, cleaned up manually.

Cc: qemu-arm@nongnu.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
2016-01-13 11:58:58 +01:00
Markus Armbruster
f8ed85ac99 Fix bad error handling after memory_region_init_ram()
Symptom:

    $ qemu-system-x86_64 -m 10000000
    Unexpected error in ram_block_add() at /work/armbru/qemu/exec.c:1456:
    upstream-qemu: cannot set up guest memory 'pc.ram': Cannot allocate memory
    Aborted (core dumped)

Root cause: commit ef701d7 screwed up handling of out-of-memory
conditions.  Before the commit, we report the error and exit(1), in
one place, ram_block_add().  The commit lifts the error handling up
the call chain some, to three places.  Fine.  Except it uses
&error_abort in these places, changing the behavior from exit(1) to
abort(), and thus undoing the work of commit 3922825 "exec: Don't
abort when we can't allocate guest memory".

The three places are:

* memory_region_init_ram()

  Commit 4994653 (right after commit ef701d7) lifted the error
  handling further, through memory_region_init_ram(), multiplying the
  incorrect use of &error_abort.  Later on, imitation of existing
  (bad) code may have created more.

* memory_region_init_ram_ptr()

  The &error_abort is still there.

* memory_region_init_rom_device()

  Doesn't need fixing, because commit 33e0eb5 (soon after commit
  ef701d7) lifted the error handling further, and in the process
  changed it from &error_abort to passing it up the call chain.
  Correct, because the callers are realize() methods.

Fix the error handling after memory_region_init_ram() with a
Coccinelle semantic patch:

    @r@
    expression mr, owner, name, size, err;
    position p;
    @@
            memory_region_init_ram(mr, owner, name, size,
    (
    -                              &error_abort
    +                              &error_fatal
    |
                                   err@p
    )
                                  );
    @script:python@
        p << r.p;
    @@
    print "%s:%s:%s" % (p[0].file, p[0].line, p[0].column)

When the last argument is &error_abort, it gets replaced by
&error_fatal.  This is the fix.

If the last argument is anything else, its position is reported.  This
lets us check the fix is complete.  Four positions get reported:

* ram_backend_memory_alloc()

  Error is passed up the call chain, ultimately through
  user_creatable_complete().  As far as I can tell, it's callers all
  handle the error sanely.

* fsl_imx25_realize(), fsl_imx31_realize(), dp8393x_realize()

  DeviceClass.realize() methods, errors handled sanely further up the
  call chain.

We're good.  Test case again behaves:

    $ qemu-system-x86_64 -m 10000000
    qemu-system-x86_64: cannot set up guest memory 'pc.ram': Cannot allocate memory
    [Exit 1 ]

The next commits will repair the rest of commit ef701d7's damage.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1441983105-26376-3-git-send-email-armbru@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
2015-09-18 14:39:29 +02:00
Markus Armbruster
565f65d271 error: Use error_report_err() where appropriate
Coccinelle semantic patch:

    @@
    expression E;
    @@
    -    error_report("%s", error_get_pretty(E));
    -    error_free(E);
    +    error_report_err(E);
    @@
    expression E, S;
    @@
    -    error_report("%s", error_get_pretty(E));
    +    error_report_err(E);
    (
         exit(S);
    |
         abort();
    )

Trivial manual touch-ups in block/sheepdog.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-02-18 10:51:09 +01:00
Greg Bellows
61e2f3521c target-arm: Disable EL3 on unsupported machines
Disables the CPU ARM_FEATURE_EL3 featuere on machine models that can be
configured to use Cortex-A9, Cortex-A15, and ARM1176 but don't officially
support EL3.  This preserves backwards compatibility.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1418684992-8996-15-git-send-email-greg.bellows@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-12-22 23:12:28 +00:00
Hu Tao
49946538d2 memory: add parameter errp to memory_region_init_ram
Add parameter errp to memory_region_init_ram and update all call sites
to pass in &error_abort.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-09-09 13:41:43 +02:00
Peter Maydell
4719ab918a exynos4210: Set reset-cbar property of Cortex-A9 CPUs
Set the reset-cbar property of the Exynos4210 SoC's Cortex-A9
CPUs, so that Linux doesn't misrecognize them as a broken
uniprocessor SoC.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: 1394462692-8871-4-git-send-email-peter.maydell@linaro.org
2014-03-17 16:31:46 +00:00
Andreas Färber
a5c828525e i2c: Rename i2c_bus to I2CBus
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-02-14 16:22:31 +01:00
Peter Maydell
ad666d91f4 hw/arm/exynos4210: Don't use arm_pic_init_cpu()
Drop the now-deprecated arm_pic_init_cpu() in favour of directly
getting the IRQ line from the ARMCPU object.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1375977856-25046-4-git-send-email-peter.maydell@linaro.org
2013-08-20 14:54:28 +01:00
Paolo Bonzini
2c9b15cab1 memory: add owner argument to initialization functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:44 +02:00
Igor Mitsyanko
6539ed21b1 exynos4210.c: register rom_mem for memory migration
Even if we do not register newly created RAM MemoryRegion for migration with
vmstate_register_ram_global() function, ram_save_setup() still saves this region
to snapshot file with empty idstr=="". Consequently this results in error during
VM loading in ram_load().
Register rom_mem for migration.

Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Message-id: 1368199981-45292-3-git-send-email-i.mitsyanko@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-03 17:17:46 +01:00
Igor Mitsyanko
11a5e48249 hw/arm/exynos4210.c: convert chipid_and_omr to an mmio region
Exynos SoC was misusing memory_region_init_ram_ptr(): this interface can safely
be used only for memory regions which size is a multiple of target page size.
Change chipid_and_omr memory to an mmio region to fix this.

Signed-off-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Message-id: 1368199981-45292-2-git-send-email-i.mitsyanko@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-03 17:17:46 +01:00
Peter Maydell
bd2be15003 arm: fix location of some include files
The recent rearrangement of include files had some minor errors:
 devices.h is not ARM specific and should not be in arm/
 arm.h should be in arm/

Move these two headers to correct this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 15:16:01 +02:00
Paolo Bonzini
0d09e41a51 hw: move headers to include/
Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:10 +02:00
Paolo Bonzini
dd285b0649 arm: move files referencing CPU to hw/arm/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-03-01 15:01:19 +01:00