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From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Marek Vasut" <marex@denx.de>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	qemu-riscv@nongnu.org,
	"Sagar Karandikar" <sagark@eecs.berkeley.edu>,
	"Bastian Koppelmann" <kbastian@mail.uni-paderborn.de>,
	"Chris Wulff" <crwulff@gmail.com>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Max Filippov" <jcmvbkbc@gmail.com>,
	"Aleksandar Markovic" <aleksandar.qemu.devel@gmail.com>,
	qemu-arm@nongnu.org, "Palmer Dabbelt" <palmer@dabbelt.com>,
	"Michael Walle" <michael@walle.cc>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Alistair Francis" <Alistair.Francis@wdc.com>,
	"Aleksandar Rikalo" <aleksandar.rikalo@rt-rk.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Aurelien Jarno" <aurelien@aurel32.net>,
	"Richard Henderson" <rth@twiddle.net>
Subject: [PATCH v2 10/10] hw/semihosting: Make the feature depend of TCG, and allow to disable it
Date: Fri, 15 May 2020 19:08:04 +0200	[thread overview]
Message-ID: <20200515170804.5707-11-philmd@redhat.com> (raw)
In-Reply-To: <20200515170804.5707-1-philmd@redhat.com>

The semihosting feature is only meaningful when using TCG.

Do not enable it by default, and let the few targets requiring
it to manually select it.
The targets restricted to TCG that previously selected it
(see commit 16932bb761e52c2 'introduce CONFIG_SEMIHOSTING')
are left unmodified; however the selection is moved to the
target Kconfig.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 default-configs/arm-softmmu.mak         | 1 -
 default-configs/lm32-softmmu.mak        | 2 --
 default-configs/m68k-softmmu.mak        | 2 --
 default-configs/mips-softmmu-common.mak | 3 ---
 default-configs/nios2-softmmu.mak       | 2 --
 default-configs/xtensa-softmmu.mak      | 2 --
 hw/semihosting/Kconfig                  | 4 +++-
 target/arm/Kconfig                      | 2 ++
 target/lm32/Kconfig                     | 2 ++
 target/m68k/Kconfig                     | 2 ++
 target/mips/Kconfig                     | 2 ++
 target/nios2/Kconfig                    | 2 ++
 target/riscv/Kconfig                    | 2 ++
 target/xtensa/Kconfig                   | 2 ++
 14 files changed, 17 insertions(+), 13 deletions(-)
 create mode 100644 target/arm/Kconfig
 create mode 100644 target/lm32/Kconfig
 create mode 100644 target/m68k/Kconfig
 create mode 100644 target/mips/Kconfig
 create mode 100644 target/nios2/Kconfig
 create mode 100644 target/riscv/Kconfig
 create mode 100644 target/xtensa/Kconfig

diff --git a/default-configs/arm-softmmu.mak b/default-configs/arm-softmmu.mak
index 8fc09a4a51..f6044f1121 100644
--- a/default-configs/arm-softmmu.mak
+++ b/default-configs/arm-softmmu.mak
@@ -40,6 +40,5 @@ CONFIG_MICROBIT=y
 CONFIG_FSL_IMX25=y
 CONFIG_FSL_IMX7=y
 CONFIG_FSL_IMX6UL=y
-CONFIG_SEMIHOSTING=y
 CONFIG_ALLWINNER_H3=y
 CONFIG_ACPI_APEI=y
diff --git a/default-configs/lm32-softmmu.mak b/default-configs/lm32-softmmu.mak
index 115b3e34c9..6d259665d6 100644
--- a/default-configs/lm32-softmmu.mak
+++ b/default-configs/lm32-softmmu.mak
@@ -4,8 +4,6 @@
 #
 #CONFIG_MILKYMIST_TMU2=n        # disabling it actually causes compile-time failures
 
-CONFIG_SEMIHOSTING=y
-
 # Boards:
 #
 CONFIG_LM32=y
diff --git a/default-configs/m68k-softmmu.mak b/default-configs/m68k-softmmu.mak
index 6629fd2aa3..4fef4bd731 100644
--- a/default-configs/m68k-softmmu.mak
+++ b/default-configs/m68k-softmmu.mak
@@ -1,7 +1,5 @@
 # Default configuration for m68k-softmmu
 
-CONFIG_SEMIHOSTING=y
-
 # Boards:
 #
 CONFIG_AN5206=y
diff --git a/default-configs/mips-softmmu-common.mak b/default-configs/mips-softmmu-common.mak
index da29c6c0b2..6c0904b200 100644
--- a/default-configs/mips-softmmu-common.mak
+++ b/default-configs/mips-softmmu-common.mak
@@ -1,8 +1,5 @@
 # Common mips*-softmmu CONFIG defines
 
-# CONFIG_SEMIHOSTING is always required on this architecture
-CONFIG_SEMIHOSTING=y
-
 CONFIG_ISA_BUS=y
 CONFIG_PCI=y
 CONFIG_PCI_DEVICES=y
diff --git a/default-configs/nios2-softmmu.mak b/default-configs/nios2-softmmu.mak
index 1bc4082ea9..e130d024e6 100644
--- a/default-configs/nios2-softmmu.mak
+++ b/default-configs/nios2-softmmu.mak
@@ -1,7 +1,5 @@
 # Default configuration for nios2-softmmu
 
-CONFIG_SEMIHOSTING=y
-
 # Boards:
 #
 CONFIG_NIOS2_10M50=y
diff --git a/default-configs/xtensa-softmmu.mak b/default-configs/xtensa-softmmu.mak
index 4fe1bf00c9..49e4c9da88 100644
--- a/default-configs/xtensa-softmmu.mak
+++ b/default-configs/xtensa-softmmu.mak
@@ -1,7 +1,5 @@
 # Default configuration for Xtensa
 
-CONFIG_SEMIHOSTING=y
-
 # Boards:
 #
 CONFIG_XTENSA_SIM=y
diff --git a/hw/semihosting/Kconfig b/hw/semihosting/Kconfig
index efe0a30734..30befcdd21 100644
--- a/hw/semihosting/Kconfig
+++ b/hw/semihosting/Kconfig
@@ -1,3 +1,5 @@
 
+# default is 'n'
 config SEMIHOSTING
-       bool
+    bool
+    depends on TCG
diff --git a/target/arm/Kconfig b/target/arm/Kconfig
new file mode 100644
index 0000000000..3224cac4ad
--- /dev/null
+++ b/target/arm/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y if TCG
diff --git a/target/lm32/Kconfig b/target/lm32/Kconfig
new file mode 100644
index 0000000000..c0a9a9e799
--- /dev/null
+++ b/target/lm32/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y
diff --git a/target/m68k/Kconfig b/target/m68k/Kconfig
new file mode 100644
index 0000000000..c0a9a9e799
--- /dev/null
+++ b/target/m68k/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y
diff --git a/target/mips/Kconfig b/target/mips/Kconfig
new file mode 100644
index 0000000000..3224cac4ad
--- /dev/null
+++ b/target/mips/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y if TCG
diff --git a/target/nios2/Kconfig b/target/nios2/Kconfig
new file mode 100644
index 0000000000..c0a9a9e799
--- /dev/null
+++ b/target/nios2/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y
diff --git a/target/riscv/Kconfig b/target/riscv/Kconfig
new file mode 100644
index 0000000000..3224cac4ad
--- /dev/null
+++ b/target/riscv/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y if TCG
diff --git a/target/xtensa/Kconfig b/target/xtensa/Kconfig
new file mode 100644
index 0000000000..c0a9a9e799
--- /dev/null
+++ b/target/xtensa/Kconfig
@@ -0,0 +1,2 @@
+config SEMIHOSTING
+    default y
-- 
2.21.3



  parent reply	other threads:[~2020-05-15 17:14 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-15 17:07 [PATCH v2 00/10] accel: Allow targets to use Kconfig, disable semihosting by default Philippe Mathieu-Daudé
2020-05-15 17:07 ` [PATCH v2 01/10] MAINTAINERS: Fix KVM path expansion glob Philippe Mathieu-Daudé
2020-05-17 17:23   ` Thomas Huth
2020-05-15 17:07 ` [PATCH v2 02/10] MAINTAINERS: Add an 'overall' entry for accelerators Philippe Mathieu-Daudé
2020-05-17 17:26   ` Thomas Huth
2020-05-21 15:09     ` Philippe Mathieu-Daudé
2020-05-15 17:07 ` [PATCH v2 03/10] MAINTAINERS: Add an entry for the HAX accelerator Philippe Mathieu-Daudé
2020-05-15 17:07 ` [PATCH v2 04/10] accel/tcg: Add stub for probe_access() Philippe Mathieu-Daudé
2020-05-19 21:41   ` Richard Henderson
2020-05-15 17:07 ` [PATCH v2 05/10] Makefile: Remove dangerous EOL trailing backslash Philippe Mathieu-Daudé
2020-05-17 18:00   ` Thomas Huth
2020-05-18 16:46   ` Alistair Francis
2020-05-15 17:08 ` [PATCH v2 06/10] Makefile: Write MINIKCONF variables as one entry per line Philippe Mathieu-Daudé
2020-05-15 17:08 ` [PATCH v2 07/10] accel/Kconfig: Extract accel selectors into their own config Philippe Mathieu-Daudé
2020-05-15 17:08 ` [PATCH v2 08/10] accel/Kconfig: Add the TCG selector Philippe Mathieu-Daudé
2020-05-15 17:08 ` [PATCH v2 09/10] Makefile: Allow target-specific optional Kconfig Philippe Mathieu-Daudé
2020-05-19 21:42   ` Richard Henderson
2020-05-21 17:33   ` Philippe Mathieu-Daudé
2020-05-15 17:08 ` Philippe Mathieu-Daudé [this message]
2020-05-19 21:44   ` [PATCH v2 10/10] hw/semihosting: Make the feature depend of TCG, and allow to disable it Richard Henderson
2020-05-21 19:55     ` Philippe Mathieu-Daudé
2020-05-16  3:44 ` [PATCH v2 00/10] accel: Allow targets to use Kconfig, disable semihosting by default no-reply
2020-05-16  3:57 ` no-reply

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