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[PATCH v6 06/11] target/arm: Restrict ARMv7 R-profile cpus to TCG accel


From: Philippe Mathieu-Daudé
Subject: [PATCH v6 06/11] target/arm: Restrict ARMv7 R-profile cpus to TCG accel
Date: Sun, 31 Jan 2021 12:50:17 +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").

Beside, KVM only supports A-profile, thus won't be able to run
R-profile cpus.

Only enable the following ARMv7 R-Profile CPUs when TCG is available:

  - Cortex-R5
  - Cortex-R5F

The following machine is no more built when TCG is disabled:

  - xlnx-zcu102          Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 default-configs/devices/aarch64-softmmu.mak | 1 -
 hw/arm/Kconfig                              | 2 ++
 target/arm/Kconfig                          | 4 ++++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/default-configs/devices/aarch64-softmmu.mak 
b/default-configs/devices/aarch64-softmmu.mak
index 958b1e08e40..a4202f56817 100644
--- a/default-configs/devices/aarch64-softmmu.mak
+++ b/default-configs/devices/aarch64-softmmu.mak
@@ -3,6 +3,5 @@
 # We support all the 32 bit boards so need all their config
 include arm-softmmu.mak
 
-CONFIG_XLNX_ZYNQMP_ARM=y
 CONFIG_XLNX_VERSAL=y
 CONFIG_SBSA_REF=y
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 6c4bce4d637..4baf1f97694 100644
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -360,8 +360,10 @@ config STM32F405_SOC
 
 config XLNX_ZYNQMP_ARM
     bool
+    default y if TCG && ARM
     select AHCI
     select ARM_GIC
+    select ARM_V7R
     select CADENCE
     select DDC
     select DPCD
diff --git a/target/arm/Kconfig b/target/arm/Kconfig
index fbb7bba9018..4dc96c46520 100644
--- a/target/arm/Kconfig
+++ b/target/arm/Kconfig
@@ -18,6 +18,10 @@ config ARM_V6
     bool
     depends on TCG && ARM
 
+config ARM_V7R
+    bool
+    depends on TCG && ARM
+
 config ARM_V7M
     bool
     select PTIMER
-- 
2.26.2




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