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[PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState

Bernhard Beschow posted 9 patches 3 years, 4 months ago
There is a newer version of this series
[PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Bernhard Beschow 3 years, 4 months ago 
SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
inherit from TYPE_MACHINE. This is an inconsistency which can cause
undefined behavior such as memory corruption.

Change SiFiveEState to inherit from MachineState since it is registered
as a machine.

Signed-off-by: Bernhard Beschow <shentey@gmail.com>
---
 include/hw/riscv/sifive_e.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h
index 83604da805..d738745925 100644
--- a/include/hw/riscv/sifive_e.h
+++ b/include/hw/riscv/sifive_e.h
@@ -22,6 +22,7 @@
 #include "hw/riscv/riscv_hart.h"
 #include "hw/riscv/sifive_cpu.h"
 #include "hw/gpio/sifive_gpio.h"
+#include "hw/boards.h"
 
 #define TYPE_RISCV_E_SOC "riscv.sifive.e.soc"
 #define RISCV_E_SOC(obj) \
@@ -41,7 +42,7 @@ typedef struct SiFiveESoCState {
 
 typedef struct SiFiveEState {
     /*< private >*/
-    SysBusDevice parent_obj;
+    MachineState parent_obj;
 
     /*< public >*/
     SiFiveESoCState soc;
-- 
2.37.3
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Philippe Mathieu-Daudé 3 years, 4 months ago 
On 20/9/22 01:17, Bernhard Beschow wrote:
> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
> inherit from TYPE_MACHINE. This is an inconsistency which can cause
> undefined behavior such as memory corruption.
> 
> Change SiFiveEState to inherit from MachineState since it is registered
> as a machine.
> 
> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
> ---
>   include/hw/riscv/sifive_e.h | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h
> index 83604da805..d738745925 100644
> --- a/include/hw/riscv/sifive_e.h
> +++ b/include/hw/riscv/sifive_e.h
> @@ -22,6 +22,7 @@
>   #include "hw/riscv/riscv_hart.h"
>   #include "hw/riscv/sifive_cpu.h"
>   #include "hw/gpio/sifive_gpio.h"
> +#include "hw/boards.h"
>   
>   #define TYPE_RISCV_E_SOC "riscv.sifive.e.soc"
>   #define RISCV_E_SOC(obj) \
> @@ -41,7 +42,7 @@ typedef struct SiFiveESoCState {
>   
>   typedef struct SiFiveEState {
>       /*< private >*/
> -    SysBusDevice parent_obj;
> +    MachineState parent_obj;

Ouch.

Fixes: 0869490b1c ("riscv: sifive_e: Manually define the machine")

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Alistair Francis 3 years, 4 months ago 
On Tue, Sep 20, 2022 at 9:18 AM Bernhard Beschow <shentey@gmail.com> wrote:
>
> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
> inherit from TYPE_MACHINE. This is an inconsistency which can cause
> undefined behavior such as memory corruption.
>
> Change SiFiveEState to inherit from MachineState since it is registered
> as a machine.
>
> Signed-off-by: Bernhard Beschow <shentey@gmail.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  include/hw/riscv/sifive_e.h | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/hw/riscv/sifive_e.h b/include/hw/riscv/sifive_e.h
> index 83604da805..d738745925 100644
> --- a/include/hw/riscv/sifive_e.h
> +++ b/include/hw/riscv/sifive_e.h
> @@ -22,6 +22,7 @@
>  #include "hw/riscv/riscv_hart.h"
>  #include "hw/riscv/sifive_cpu.h"
>  #include "hw/gpio/sifive_gpio.h"
> +#include "hw/boards.h"
>
>  #define TYPE_RISCV_E_SOC "riscv.sifive.e.soc"
>  #define RISCV_E_SOC(obj) \
> @@ -41,7 +42,7 @@ typedef struct SiFiveESoCState {
>
>  typedef struct SiFiveEState {
>      /*< private >*/
> -    SysBusDevice parent_obj;
> +    MachineState parent_obj;
>
>      /*< public >*/
>      SiFiveESoCState soc;
> --
> 2.37.3
>
>
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Markus Armbruster 3 years, 4 months ago 
Alistair Francis <alistair23@gmail.com> writes:

> On Tue, Sep 20, 2022 at 9:18 AM Bernhard Beschow <shentey@gmail.com> wrote:
>>
>> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
>> inherit from TYPE_MACHINE. This is an inconsistency which can cause
>> undefined behavior such as memory corruption.
>>
>> Change SiFiveEState to inherit from MachineState since it is registered
>> as a machine.
>>
>> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
>
> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

To the SiFive maintainers: since this is a bug fix, let's merge it right
away.
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Bernhard Beschow 3 years, 4 months ago 
Am 20. September 2022 11:36:47 UTC schrieb Markus Armbruster <armbru@redhat.com>:
>Alistair Francis <alistair23@gmail.com> writes:
>
>> On Tue, Sep 20, 2022 at 9:18 AM Bernhard Beschow <shentey@gmail.com> wrote:
>>>
>>> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
>>> inherit from TYPE_MACHINE. This is an inconsistency which can cause
>>> undefined behavior such as memory corruption.
>>>
>>> Change SiFiveEState to inherit from MachineState since it is registered
>>> as a machine.
>>>
>>> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
>>
>> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
>
>To the SiFive maintainers: since this is a bug fix, let's merge it right
>away.

I could repost this particular patch with the three new tags (incl. Fixes) if desired.

Best regards,
Bernhard
>
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by Markus Armbruster 3 years, 4 months ago 
Bernhard Beschow <shentey@gmail.com> writes:

> Am 20. September 2022 11:36:47 UTC schrieb Markus Armbruster <armbru@redhat.com>:
>>Alistair Francis <alistair23@gmail.com> writes:
>>
>>> On Tue, Sep 20, 2022 at 9:18 AM Bernhard Beschow <shentey@gmail.com> wrote:
>>>>
>>>> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
>>>> inherit from TYPE_MACHINE. This is an inconsistency which can cause
>>>> undefined behavior such as memory corruption.
>>>>
>>>> Change SiFiveEState to inherit from MachineState since it is registered
>>>> as a machine.
>>>>
>>>> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
>>>
>>> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
>>
>>To the SiFive maintainers: since this is a bug fix, let's merge it right
>>away.
>
> I could repost this particular patch with the three new tags (incl. Fixes) if desired.

Can't hurt, and could help the maintainers.
Re: [PATCH 1/9] hw/riscv/sifive_e: Fix inheritance of SiFiveEState
Posted by B 3 years, 4 months ago 

Am 21. September 2022 04:55:02 UTC schrieb Markus Armbruster <armbru@redhat.com>:
>Bernhard Beschow <shentey@gmail.com> writes:
>
>> Am 20. September 2022 11:36:47 UTC schrieb Markus Armbruster <armbru@redhat.com>:
>>>Alistair Francis <alistair23@gmail.com> writes:
>>>
>>>> On Tue, Sep 20, 2022 at 9:18 AM Bernhard Beschow <shentey@gmail.com> wrote:
>>>>>
>>>>> SiFiveEState inherits from SysBusDevice while it's TypeInfo claims it to
>>>>> inherit from TYPE_MACHINE. This is an inconsistency which can cause
>>>>> undefined behavior such as memory corruption.
>>>>>
>>>>> Change SiFiveEState to inherit from MachineState since it is registered
>>>>> as a machine.
>>>>>
>>>>> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
>>>>
>>>> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
>>>
>>>To the SiFive maintainers: since this is a bug fix, let's merge it right
>>>away.
>>
>> I could repost this particular patch with the three new tags (incl. Fixes) if desired.
>
>Can't hurt, and could help the maintainers.

[X] Done.

Best regards,
Bernhard

Patchew 2.1-devel-b67e4c2

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