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


From: Philippe Mathieu-Daudé
Subject: [PATCH v6 03/11] target/arm: Restrict ARMv4 cpus to TCG accel
Date: Sun, 31 Jan 2021 12:50:14 +0100

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




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