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[PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel

Philippe Mathieu-Daudé posted 11 patches 5 years ago
[PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Posted by Philippe Mathieu-Daudé 5 years ago 
KVM requires the target cpu to be at least ARMv8 architecture
(support on ARMv7 has been dropped in commit 82bf7ae84ce:
"target/arm: Remove KVM support for 32-bit Arm hosts").

Only enable the following ARMv4 CPUs when TCG is available:

  - StrongARM (SA1100/1110)
  - OMAP1510 (TI925T)

The following machines are no more built when TCG is disabled:

  - cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
  - sx1                  Siemens SX1 (OMAP310) V2
  - sx1-v1               Siemens SX1 (OMAP310) V1

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 default-configs/devices/arm-softmmu.mak | 2 --
 hw/arm/Kconfig                          | 4 ++++
 target/arm/Kconfig                      | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/default-configs/devices/arm-softmmu.mak b/default-configs/devices/arm-softmmu.mak
index 0824e9be795..6ae964c14fd 100644
--- a/default-configs/devices/arm-softmmu.mak
+++ b/default-configs/devices/arm-softmmu.mak
@@ -14,8 +14,6 @@ CONFIG_INTEGRATOR=y
 CONFIG_FSL_IMX31=y
 CONFIG_MUSICPAL=y
 CONFIG_MUSCA=y
-CONFIG_CHEETAH=y
-CONFIG_SX1=y
 CONFIG_NSERIES=y
 CONFIG_STELLARIS=y
 CONFIG_REALVIEW=y
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index f3ecb73a3d8..f2957b33bee 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -31,6 +31,8 @@ config ARM_VIRT
 
 config CHEETAH
     bool
+    default y if TCG && ARM
+    select ARM_V4
     select OMAP
     select TSC210X
 
@@ -249,6 +251,8 @@ config COLLIE
 
 config SX1
     bool
+    default y if TCG && ARM
+    select ARM_V4
     select OMAP
 
 config VERSATILE
diff --git a/target/arm/Kconfig b/target/arm/Kconfig
index ae89d05c7e5..811e1e81652 100644
--- a/target/arm/Kconfig
+++ b/target/arm/Kconfig
@@ -6,6 +6,10 @@ config AARCH64
     bool
     select ARM
 
+config ARM_V4
+    bool
+    depends on TCG && ARM
+
 config ARM_V7M
     bool
     select PTIMER
-- 
2.26.2
Re: [PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Posted by Claudio Fontana 5 years ago 
On 1/31/21 12:50 PM, Philippe Mathieu-Daudé wrote:
> KVM requires the target cpu to be at least ARMv8 architecture
> (support on ARMv7 has been dropped in commit 82bf7ae84ce:
> "target/arm: Remove KVM support for 32-bit Arm hosts").
> 
> Only enable the following ARMv4 CPUs when TCG is available:
> 
>   - StrongARM (SA1100/1110)
>   - OMAP1510 (TI925T)
> 
> The following machines are no more built when TCG is disabled:
> 
>   - cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
>   - sx1                  Siemens SX1 (OMAP310) V2
>   - sx1-v1               Siemens SX1 (OMAP310) V1
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
>  default-configs/devices/arm-softmmu.mak | 2 --
>  hw/arm/Kconfig                          | 4 ++++
>  target/arm/Kconfig                      | 4 ++++
>  3 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/default-configs/devices/arm-softmmu.mak b/default-configs/devices/arm-softmmu.mak
> index 0824e9be795..6ae964c14fd 100644
> --- a/default-configs/devices/arm-softmmu.mak
> +++ b/default-configs/devices/arm-softmmu.mak
> @@ -14,8 +14,6 @@ CONFIG_INTEGRATOR=y
>  CONFIG_FSL_IMX31=y
>  CONFIG_MUSICPAL=y
>  CONFIG_MUSCA=y
> -CONFIG_CHEETAH=y
> -CONFIG_SX1=y
>  CONFIG_NSERIES=y
>  CONFIG_STELLARIS=y
>  CONFIG_REALVIEW=y
> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index f3ecb73a3d8..f2957b33bee 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -31,6 +31,8 @@ config ARM_VIRT
>  
>  config CHEETAH
>      bool
> +    default y if TCG && ARM
> +    select ARM_V4
>      select OMAP
>      select TSC210X
>  
> @@ -249,6 +251,8 @@ config COLLIE
>  
>  config SX1
>      bool
> +    default y if TCG && ARM
> +    select ARM_V4
>      select OMAP
>  
>  config VERSATILE
> diff --git a/target/arm/Kconfig b/target/arm/Kconfig
> index ae89d05c7e5..811e1e81652 100644
> --- a/target/arm/Kconfig
> +++ b/target/arm/Kconfig
> @@ -6,6 +6,10 @@ config AARCH64
>      bool
>      select ARM
>  
> +config ARM_V4
> +    bool
> +    depends on TCG && ARM
> +
>  config ARM_V7M
>      bool
>      select PTIMER
> 

Looks good to me

Acked-by: Claudio Fontana <cfontana@suse.de>
Re: [PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Posted by Alex Bennée 5 years ago 
Philippe Mathieu-Daudé <f4bug@amsat.org> writes:

> KVM requires the target cpu to be at least ARMv8 architecture
> (support on ARMv7 has been dropped in commit 82bf7ae84ce:
> "target/arm: Remove KVM support for 32-bit Arm hosts").
>
> Only enable the following ARMv4 CPUs when TCG is available:
>
>   - StrongARM (SA1100/1110)
>   - OMAP1510 (TI925T)
>
> The following machines are no more built when TCG is disabled:
>
>   - cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
>   - sx1                  Siemens SX1 (OMAP310) V2
>   - sx1-v1               Siemens SX1 (OMAP310) V1
>
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

-- 
Alex Bennée
Re: [PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Posted by Claudio Fontana 4 years, 11 months ago 
Hi,

I am trying to take these patches,
in the hope that they help with some of the test issues I am having with the kvm-only build,

but they fail with:

target/arm/Kconfig: does not exist in index

so I guess I need the "target/arm/Kconfig" series right, how can I find that one?

Thanks,

Claudio



On 1/31/21 12:50 PM, Philippe Mathieu-Daudé wrote:
> KVM requires the target cpu to be at least ARMv8 architecture
> (support on ARMv7 has been dropped in commit 82bf7ae84ce:
> "target/arm: Remove KVM support for 32-bit Arm hosts").
> 
> Only enable the following ARMv4 CPUs when TCG is available:
> 
>   - StrongARM (SA1100/1110)
>   - OMAP1510 (TI925T)
> 
> The following machines are no more built when TCG is disabled:
> 
>   - cheetah              Palm Tungsten|E aka. Cheetah PDA (OMAP310)
>   - sx1                  Siemens SX1 (OMAP310) V2
>   - sx1-v1               Siemens SX1 (OMAP310) V1
> 
> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
> ---
>  default-configs/devices/arm-softmmu.mak | 2 --
>  hw/arm/Kconfig                          | 4 ++++
>  target/arm/Kconfig                      | 4 ++++
>  3 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/default-configs/devices/arm-softmmu.mak b/default-configs/devices/arm-softmmu.mak
> index 0824e9be795..6ae964c14fd 100644
> --- a/default-configs/devices/arm-softmmu.mak
> +++ b/default-configs/devices/arm-softmmu.mak
> @@ -14,8 +14,6 @@ CONFIG_INTEGRATOR=y
>  CONFIG_FSL_IMX31=y
>  CONFIG_MUSICPAL=y
>  CONFIG_MUSCA=y
> -CONFIG_CHEETAH=y
> -CONFIG_SX1=y
>  CONFIG_NSERIES=y
>  CONFIG_STELLARIS=y
>  CONFIG_REALVIEW=y
> diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
> index f3ecb73a3d8..f2957b33bee 100644
> --- a/hw/arm/Kconfig
> +++ b/hw/arm/Kconfig
> @@ -31,6 +31,8 @@ config ARM_VIRT
>  
>  config CHEETAH
>      bool
> +    default y if TCG && ARM
> +    select ARM_V4
>      select OMAP
>      select TSC210X
>  
> @@ -249,6 +251,8 @@ config COLLIE
>  
>  config SX1
>      bool
> +    default y if TCG && ARM
> +    select ARM_V4
>      select OMAP
>  
>  config VERSATILE
> diff --git a/target/arm/Kconfig b/target/arm/Kconfig
> index ae89d05c7e5..811e1e81652 100644
> --- a/target/arm/Kconfig
> +++ b/target/arm/Kconfig
> @@ -6,6 +6,10 @@ config AARCH64
>      bool
>      select ARM
>  
> +config ARM_V4
> +    bool
> +    depends on TCG && ARM
> +
>  config ARM_V7M
>      bool
>      select PTIMER
>
Re: [PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Posted by Philippe Mathieu-Daudé 4 years, 11 months ago 
On 3/4/21 12:55 PM, Claudio Fontana wrote:
> Hi,
> 
> I am trying to take these patches,
> in the hope that they help with some of the test issues I am having with the kvm-only build,
> 
> but they fail with:
> 
> target/arm/Kconfig: does not exist in index
> 
> so I guess I need the "target/arm/Kconfig" series right, how can I find that one?

See the Based-on in the cover ;)
https://www.mail-archive.com/qemu-block@nongnu.org/msg79924.html

Regards,

Phil.

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