From: Philippe Mathieu-Daudé <phi...@linaro.org>
Instead of having a compile-time TARGET_SUPPORTS_MTTCG definition,
have each target set the 'mttcg_supported' field in the TCGCPUOps
structure.
Since so far we only emulate one target architecture at a time,
tcg_init_machine() gets whether MTTCG is supported via the
current CPU class (CPU_RESOLVING_TYPE).
Since TARGET_SUPPORTS_MTTCG isn't available anymore,
instead of emiting a warning when the 'thread' property
is set in tcg_set_thread(), emit it in tcg_init_machine()
where it is consumed.
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Reviewed-by: Anton Johansson <a...@rev.ng>
Reviewed-by: Pierrick Bouvier <pierrick.bouv...@linaro.org>
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Message-ID: <20250405161320.76854-17-phi...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
include/accel/tcg/cpu-ops.h | 8 ++++++++
include/exec/poison.h | 1 -
accel/tcg/tcg-all.c | 11 +++++------
target/alpha/cpu.c | 1 +
target/arm/cpu.c | 1 +
target/arm/tcg/cpu-v7m.c | 1 +
target/avr/cpu.c | 1 +
target/hexagon/cpu.c | 1 +
target/hppa/cpu.c | 1 +
target/i386/tcg/tcg-cpu.c | 1 +
target/loongarch/cpu.c | 1 +
target/m68k/cpu.c | 1 +
target/microblaze/cpu.c | 1 +
target/mips/cpu.c | 1 +
target/openrisc/cpu.c | 1 +
target/ppc/cpu_init.c | 1 +
target/riscv/tcg/tcg-cpu.c | 1 +
target/rx/cpu.c | 1 +
target/s390x/cpu.c | 1 +
target/sh4/cpu.c | 1 +
target/sparc/cpu.c | 1 +
target/tricore/cpu.c | 1 +
target/xtensa/cpu.c | 1 +
configs/targets/aarch64-softmmu.mak | 1 -
configs/targets/alpha-softmmu.mak | 1 -
configs/targets/arm-softmmu.mak | 1 -
configs/targets/hppa-softmmu.mak | 1 -
configs/targets/i386-softmmu.mak | 1 -
configs/targets/loongarch64-softmmu.mak | 1 -
configs/targets/microblaze-softmmu.mak | 1 -
configs/targets/microblazeel-softmmu.mak | 1 -
configs/targets/mips-softmmu.mak | 1 -
configs/targets/mipsel-softmmu.mak | 1 -
configs/targets/or1k-softmmu.mak | 1 -
configs/targets/ppc64-softmmu.mak | 1 -
configs/targets/riscv32-softmmu.mak | 1 -
configs/targets/riscv64-softmmu.mak | 1 -
configs/targets/s390x-softmmu.mak | 1 -
configs/targets/sparc-softmmu.mak | 1 -
configs/targets/sparc64-softmmu.mak | 1 -
configs/targets/x86_64-softmmu.mak | 1 -
configs/targets/xtensa-softmmu.mak | 1 -
configs/targets/xtensaeb-softmmu.mak | 1 -
docs/devel/multi-thread-tcg.rst | 2 +-
44 files changed, 34 insertions(+), 28 deletions(-)
diff --git a/include/accel/tcg/cpu-ops.h b/include/accel/tcg/cpu-ops.h
index a4932fc5d7..0e4352513d 100644
--- a/include/accel/tcg/cpu-ops.h
+++ b/include/accel/tcg/cpu-ops.h
@@ -19,6 +19,14 @@
#include "tcg/tcg-mo.h"
struct TCGCPUOps {
+ /**
+ * mttcg_supported: multi-threaded TCG is supported
+ *
+ * Target (TCG frontend) supports:
+ * - atomic instructions
+ * - memory ordering primitives (barriers)
+ */
+ bool mttcg_supported;
/**
* @guest_default_memory_order: default barrier that is required
diff --git a/include/exec/poison.h b/include/exec/poison.h
index a09e0c1263..bc422719d8 100644
--- a/include/exec/poison.h
+++ b/include/exec/poison.h
@@ -35,7 +35,6 @@
#pragma GCC poison TARGET_HAS_BFLT
#pragma GCC poison TARGET_NAME
-#pragma GCC poison TARGET_SUPPORTS_MTTCG
#pragma GCC poison TARGET_BIG_ENDIAN
#pragma GCC poison TCG_GUEST_DEFAULT_MO
#pragma GCC poison TARGET_HAS_PRECISE_SMC
diff --git a/accel/tcg/tcg-all.c b/accel/tcg/tcg-all.c
index ecdd48847c..b0d4e3e136 100644
--- a/accel/tcg/tcg-all.c
+++ b/accel/tcg/tcg-all.c
@@ -41,8 +41,9 @@
#include "hw/boards.h"
#include "system/tcg.h"
#endif
+#include "accel/tcg/cpu-ops.h"
#include "internal-common.h"
-#include "cpu-param.h"
+#include "cpu.h"
struct TCGState {
@@ -88,11 +89,9 @@ static int tcg_init_machine(MachineState *ms)
unsigned max_threads = 1;
#ifndef CONFIG_USER_ONLY
-# ifdef TARGET_SUPPORTS_MTTCG
- bool mttcg_supported = true;
-# else
- bool mttcg_supported = false;
-# endif
+ CPUClass *cc = CPU_CLASS(object_class_by_name(CPU_RESOLVING_TYPE));
+ bool mttcg_supported = cc->tcg_ops->mttcg_supported;
+
switch (s->mttcg_enabled) {
case ON_OFF_AUTO_AUTO:
/*
diff --git a/target/alpha/cpu.c b/target/alpha/cpu.c
index eeaf3a81c1..35fb145d27 100644
--- a/target/alpha/cpu.c
+++ b/target/alpha/cpu.c
@@ -237,6 +237,7 @@ static const struct SysemuCPUOps alpha_sysemu_ops = {
static const TCGCPUOps alpha_tcg_ops = {
/* Alpha processors have a weak memory model */
.guest_default_memory_order = 0,
+ .mttcg_supported = true,
.initialize = alpha_translate_init,
.translate_code = alpha_translate_code,
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 3e9760b551..377791c84d 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2671,6 +2671,7 @@ static const struct SysemuCPUOps arm_sysemu_ops = {
#ifdef CONFIG_TCG
static const TCGCPUOps arm_tcg_ops = {
+ .mttcg_supported = true,
/* ARM processors have a weak memory model */
.guest_default_memory_order = 0,
diff --git a/target/arm/tcg/cpu-v7m.c b/target/arm/tcg/cpu-v7m.c
index 89d4e4b4a2..f71560aa43 100644
--- a/target/arm/tcg/cpu-v7m.c
+++ b/target/arm/tcg/cpu-v7m.c
@@ -234,6 +234,7 @@ static void cortex_m55_initfn(Object *obj)
static const TCGCPUOps arm_v7m_tcg_ops = {
/* ARM processors have a weak memory model */
.guest_default_memory_order = 0,
+ .mttcg_supported = true,
.initialize = arm_translate_init,
.translate_code = arm_translate_code,
diff --git a/target/avr/cpu.c b/target/avr/cpu.c
index 8f79cf4c08..84f3b839c9 100644
--- a/target/avr/cpu.c
+++ b/target/avr/cpu.c
@@ -225,6 +225,7 @@ static const struct SysemuCPUOps avr_sysemu_ops = {
static const TCGCPUOps avr_tcg_ops = {
.guest_default_memory_order = 0,
+ .mttcg_supported = false,
.initialize = avr_cpu_tcg_init,
.translate_code = avr_cpu_translate_code,
.synchronize_from_tb = avr_cpu_synchronize_from_tb,
diff --git a/target/hexagon/cpu.c b/target/hexagon/cpu.c
index 3d14e5cc6a..3c5191282e 100644
--- a/target/hexagon/cpu.c
+++ b/target/hexagon/cpu.c
@@ -327,6 +327,7 @@ static void hexagon_cpu_init(Object *obj)
static const TCGCPUOps hexagon_tcg_ops = {
/* MTTCG not yet supported: require strict ordering */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = false,
.initialize = hexagon_translate_init,
.translate_code = hexagon_translate_code,
.synchronize_from_tb = hexagon_cpu_synchronize_from_tb,
diff --git a/target/hppa/cpu.c b/target/hppa/cpu.c
index dfbd933056..10e18c945e 100644
--- a/target/hppa/cpu.c
+++ b/target/hppa/cpu.c
@@ -260,6 +260,7 @@ static const TCGCPUOps hppa_tcg_ops = {
* basis. It's probably easier to fall back to a strong memory model.
*/
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = true,
.initialize = hppa_translate_init,
.translate_code = hppa_translate_code,
diff --git a/target/i386/tcg/tcg-cpu.c b/target/i386/tcg/tcg-cpu.c
index e13d0f6f86..621502c984 100644
--- a/target/i386/tcg/tcg-cpu.c
+++ b/target/i386/tcg/tcg-cpu.c
@@ -125,6 +125,7 @@ static bool x86_debug_check_breakpoint(CPUState *cs)
#include "accel/tcg/cpu-ops.h"
const TCGCPUOps x86_tcg_ops = {
+ .mttcg_supported = true,
/*
* The x86 has a strong memory model with some store-after-load re-ordering
*/
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
index f5b8ef29ab..fe9462b3b7 100644
--- a/target/loongarch/cpu.c
+++ b/target/loongarch/cpu.c
@@ -865,6 +865,7 @@ static void loongarch_cpu_dump_state(CPUState *cs, FILE *f,
int flags)
static const TCGCPUOps loongarch_tcg_ops = {
.guest_default_memory_order = 0,
+ .mttcg_supported = true,
.initialize = loongarch_translate_init,
.translate_code = loongarch_translate_code,
diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
index b2d8c8f1de..99adc5eb91 100644
--- a/target/m68k/cpu.c
+++ b/target/m68k/cpu.c
@@ -591,6 +591,7 @@ static const struct SysemuCPUOps m68k_sysemu_ops = {
static const TCGCPUOps m68k_tcg_ops = {
/* MTTCG not yet supported: require strict ordering */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = false,
.initialize = m68k_tcg_init,
.translate_code = m68k_translate_code,
diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
index 4efba0dddb..edfb05758b 100644
--- a/target/microblaze/cpu.c
+++ b/target/microblaze/cpu.c
@@ -429,6 +429,7 @@ static const struct SysemuCPUOps mb_sysemu_ops = {
static const TCGCPUOps mb_tcg_ops = {
/* MicroBlaze is always in-order. */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = true,
.initialize = mb_tcg_init,
.translate_code = mb_translate_code,
diff --git a/target/mips/cpu.c b/target/mips/cpu.c
index 2ae7ba4407..473cecdebc 100644
--- a/target/mips/cpu.c
+++ b/target/mips/cpu.c
@@ -551,6 +551,7 @@ static int mips_cpu_mmu_index(CPUState *cs, bool ifunc)
}
static const TCGCPUOps mips_tcg_ops = {
+ .mttcg_supported = TARGET_LONG_BITS == 32,
.guest_default_memory_order = 0,
.initialize = mips_tcg_init,
diff --git a/target/openrisc/cpu.c b/target/openrisc/cpu.c
index 87fe779042..6601e0c066 100644
--- a/target/openrisc/cpu.c
+++ b/target/openrisc/cpu.c
@@ -244,6 +244,7 @@ static const struct SysemuCPUOps openrisc_sysemu_ops = {
static const TCGCPUOps openrisc_tcg_ops = {
.guest_default_memory_order = 0,
+ .mttcg_supported = true,
.initialize = openrisc_translate_init,
.translate_code = openrisc_translate_code,
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
index 9ba775971a..fde7d71fc6 100644
--- a/target/ppc/cpu_init.c
+++ b/target/ppc/cpu_init.c
@@ -7479,6 +7479,7 @@ static const struct SysemuCPUOps ppc_sysemu_ops = {
#include "accel/tcg/cpu-ops.h"
static const TCGCPUOps ppc_tcg_ops = {
+ .mttcg_supported = TARGET_LONG_BITS == 64,
.guest_default_memory_order = 0,
.initialize = ppc_translate_init,
.translate_code = ppc_translate_code,
diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index 44fdf6c4cf..426145c3b9 100644
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -141,6 +141,7 @@ static void riscv_restore_state_to_opc(CPUState *cs,
}
const TCGCPUOps riscv_tcg_ops = {
+ .mttcg_supported = true,
.guest_default_memory_order = 0,
.initialize = riscv_translate_init,
diff --git a/target/rx/cpu.c b/target/rx/cpu.c
index f073fe8fc9..0a7a2b55b5 100644
--- a/target/rx/cpu.c
+++ b/target/rx/cpu.c
@@ -206,6 +206,7 @@ static const struct SysemuCPUOps rx_sysemu_ops = {
static const TCGCPUOps rx_tcg_ops = {
/* MTTCG not yet supported: require strict ordering */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = false,
.initialize = rx_translate_init,
.translate_code = rx_translate_code,
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index 1e101b5afe..41cccc1e69 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -345,6 +345,7 @@ void cpu_get_tb_cpu_state(CPUS390XState *env, vaddr *pc,
}
static const TCGCPUOps s390_tcg_ops = {
+ .mttcg_supported = true,
/*
* The z/Architecture has a strong memory model with some
* store-after-load re-ordering.
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
index 7a05301c6f..861fdd47f7 100644
--- a/target/sh4/cpu.c
+++ b/target/sh4/cpu.c
@@ -264,6 +264,7 @@ static const struct SysemuCPUOps sh4_sysemu_ops = {
static const TCGCPUOps superh_tcg_ops = {
/* MTTCG not yet supported: require strict ordering */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = false,
.initialize = sh4_translate_init,
.translate_code = sh4_translate_code,
diff --git a/target/sparc/cpu.c b/target/sparc/cpu.c
index 56d9417ae3..f7d231c6f8 100644
--- a/target/sparc/cpu.c
+++ b/target/sparc/cpu.c
@@ -1023,6 +1023,7 @@ static const TCGCPUOps sparc_tcg_ops = {
* by an implied MEMBAR #StoreStore.
*/
.guest_default_memory_order = TCG_MO_LD_LD | TCG_MO_LD_ST | TCG_MO_ST_ST,
+ .mttcg_supported = true,
.initialize = sparc_tcg_init,
.translate_code = sparc_translate_code,
diff --git a/target/tricore/cpu.c b/target/tricore/cpu.c
index c68954b409..a4f93e7d91 100644
--- a/target/tricore/cpu.c
+++ b/target/tricore/cpu.c
@@ -174,6 +174,7 @@ static const struct SysemuCPUOps tricore_sysemu_ops = {
static const TCGCPUOps tricore_tcg_ops = {
/* MTTCG not yet supported: require strict ordering */
.guest_default_memory_order = TCG_MO_ALL,
+ .mttcg_supported = false,
.initialize = tricore_tcg_init,
.translate_code = tricore_translate_code,
.synchronize_from_tb = tricore_cpu_synchronize_from_tb,
diff --git a/target/xtensa/cpu.c b/target/xtensa/cpu.c
index 2cbf4e3010..971e67ad97 100644
--- a/target/xtensa/cpu.c
+++ b/target/xtensa/cpu.c
@@ -234,6 +234,7 @@ static const struct SysemuCPUOps xtensa_sysemu_ops = {
static const TCGCPUOps xtensa_tcg_ops = {
/* Xtensa processors have a weak memory model */
.guest_default_memory_order = 0,
+ .mttcg_supported = true,
.initialize = xtensa_translate_init,
.translate_code = xtensa_translate_code,
diff --git a/configs/targets/aarch64-softmmu.mak
b/configs/targets/aarch64-softmmu.mak
index 82cb72cb83..5dfeb35af9 100644
--- a/configs/targets/aarch64-softmmu.mak
+++ b/configs/targets/aarch64-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=aarch64
TARGET_BASE_ARCH=arm
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_XML_FILES= gdb-xml/aarch64-core.xml gdb-xml/aarch64-fpu.xml
gdb-xml/arm-core.xml gdb-xml/arm-vfp.xml gdb-xml/arm-vfp3.xml
gdb-xml/arm-vfp-sysregs.xml gdb-xml/arm-neon.xml gdb-xml/arm-m-profile.xml
gdb-xml/arm-m-profile-mve.xml gdb-xml/aarch64-pauth.xml
# needed by boot.c
diff --git a/configs/targets/alpha-softmmu.mak
b/configs/targets/alpha-softmmu.mak
index 89f3517aca..5275076e50 100644
--- a/configs/targets/alpha-softmmu.mak
+++ b/configs/targets/alpha-softmmu.mak
@@ -1,3 +1,2 @@
TARGET_ARCH=alpha
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=64
diff --git a/configs/targets/arm-softmmu.mak b/configs/targets/arm-softmmu.mak
index afc64f5927..6a5a8eda94 100644
--- a/configs/targets/arm-softmmu.mak
+++ b/configs/targets/arm-softmmu.mak
@@ -1,5 +1,4 @@
TARGET_ARCH=arm
-TARGET_SUPPORTS_MTTCG=y
TARGET_XML_FILES= gdb-xml/arm-core.xml gdb-xml/arm-vfp.xml
gdb-xml/arm-vfp3.xml gdb-xml/arm-vfp-sysregs.xml gdb-xml/arm-neon.xml
gdb-xml/arm-m-profile.xml gdb-xml/arm-m-profile-mve.xml
# needed by boot.c
TARGET_NEED_FDT=y
diff --git a/configs/targets/hppa-softmmu.mak b/configs/targets/hppa-softmmu.mak
index 63ca74ed5e..ea331107a0 100644
--- a/configs/targets/hppa-softmmu.mak
+++ b/configs/targets/hppa-softmmu.mak
@@ -1,4 +1,3 @@
TARGET_ARCH=hppa
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=64
diff --git a/configs/targets/i386-softmmu.mak b/configs/targets/i386-softmmu.mak
index 5dd8921756..e9d89e8ab4 100644
--- a/configs/targets/i386-softmmu.mak
+++ b/configs/targets/i386-softmmu.mak
@@ -1,5 +1,4 @@
TARGET_ARCH=i386
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_KVM_HAVE_RESET_PARKED_VCPU=y
TARGET_XML_FILES= gdb-xml/i386-32bit.xml
diff --git a/configs/targets/loongarch64-softmmu.mak
b/configs/targets/loongarch64-softmmu.mak
index 351341132f..fc44c54233 100644
--- a/configs/targets/loongarch64-softmmu.mak
+++ b/configs/targets/loongarch64-softmmu.mak
@@ -1,7 +1,6 @@
TARGET_ARCH=loongarch64
TARGET_BASE_ARCH=loongarch
TARGET_KVM_HAVE_GUEST_DEBUG=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_XML_FILES= gdb-xml/loongarch-base32.xml gdb-xml/loongarch-base64.xml
gdb-xml/loongarch-fpu.xml gdb-xml/loongarch-lsx.xml gdb-xml/loongarch-lasx.xml
# all boards require libfdt
TARGET_NEED_FDT=y
diff --git a/configs/targets/microblaze-softmmu.mak
b/configs/targets/microblaze-softmmu.mak
index 99a33ed44a..23457d0ae6 100644
--- a/configs/targets/microblaze-softmmu.mak
+++ b/configs/targets/microblaze-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=microblaze
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
# needed by boot.c
TARGET_NEED_FDT=y
TARGET_XML_FILES=gdb-xml/microblaze-core.xml
gdb-xml/microblaze-stack-protect.xml
diff --git a/configs/targets/microblazeel-softmmu.mak
b/configs/targets/microblazeel-softmmu.mak
index 52cdeae1a2..c82c509623 100644
--- a/configs/targets/microblazeel-softmmu.mak
+++ b/configs/targets/microblazeel-softmmu.mak
@@ -1,5 +1,4 @@
TARGET_ARCH=microblaze
-TARGET_SUPPORTS_MTTCG=y
# needed by boot.c
TARGET_NEED_FDT=y
TARGET_XML_FILES=gdb-xml/microblaze-core.xml
gdb-xml/microblaze-stack-protect.xml
diff --git a/configs/targets/mips-softmmu.mak b/configs/targets/mips-softmmu.mak
index b62a088249..c9588066b8 100644
--- a/configs/targets/mips-softmmu.mak
+++ b/configs/targets/mips-softmmu.mak
@@ -1,4 +1,3 @@
TARGET_ARCH=mips
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=32
diff --git a/configs/targets/mipsel-softmmu.mak
b/configs/targets/mipsel-softmmu.mak
index 620ec68178..90e09bdc3e 100644
--- a/configs/targets/mipsel-softmmu.mak
+++ b/configs/targets/mipsel-softmmu.mak
@@ -1,3 +1,2 @@
TARGET_ARCH=mips
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=32
diff --git a/configs/targets/or1k-softmmu.mak b/configs/targets/or1k-softmmu.mak
index adfddb1a8a..0e47d9878b 100644
--- a/configs/targets/or1k-softmmu.mak
+++ b/configs/targets/or1k-softmmu.mak
@@ -1,5 +1,4 @@
TARGET_ARCH=openrisc
-TARGET_SUPPORTS_MTTCG=y
TARGET_BIG_ENDIAN=y
# needed by boot.c and all boards
TARGET_NEED_FDT=y
diff --git a/configs/targets/ppc64-softmmu.mak
b/configs/targets/ppc64-softmmu.mak
index 7cee0e97f4..74572864b3 100644
--- a/configs/targets/ppc64-softmmu.mak
+++ b/configs/targets/ppc64-softmmu.mak
@@ -1,7 +1,6 @@
TARGET_ARCH=ppc64
TARGET_BASE_ARCH=ppc
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_XML_FILES= gdb-xml/power64-core.xml gdb-xml/power-fpu.xml
gdb-xml/power-altivec.xml gdb-xml/power-spe.xml gdb-xml/power-vsx.xml
# all boards require libfdt
diff --git a/configs/targets/riscv32-softmmu.mak
b/configs/targets/riscv32-softmmu.mak
index c828066ce6..db55275b86 100644
--- a/configs/targets/riscv32-softmmu.mak
+++ b/configs/targets/riscv32-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=riscv32
TARGET_BASE_ARCH=riscv
-TARGET_SUPPORTS_MTTCG=y
TARGET_XML_FILES= gdb-xml/riscv-32bit-cpu.xml gdb-xml/riscv-32bit-fpu.xml
gdb-xml/riscv-64bit-fpu.xml gdb-xml/riscv-32bit-virtual.xml
# needed by boot.c
TARGET_NEED_FDT=y
diff --git a/configs/targets/riscv64-softmmu.mak
b/configs/targets/riscv64-softmmu.mak
index 09f613d24a..2bdd4a62cd 100644
--- a/configs/targets/riscv64-softmmu.mak
+++ b/configs/targets/riscv64-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=riscv64
TARGET_BASE_ARCH=riscv
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_XML_FILES= gdb-xml/riscv-64bit-cpu.xml gdb-xml/riscv-32bit-fpu.xml
gdb-xml/riscv-64bit-fpu.xml gdb-xml/riscv-64bit-virtual.xml
gdb-xml/riscv-32bit-cpu.xml gdb-xml/riscv-32bit-virtual.xml
# needed by boot.c
diff --git a/configs/targets/s390x-softmmu.mak
b/configs/targets/s390x-softmmu.mak
index 5242ebe7c2..76dd5de658 100644
--- a/configs/targets/s390x-softmmu.mak
+++ b/configs/targets/s390x-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=s390x
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_XML_FILES= gdb-xml/s390x-core64.xml gdb-xml/s390-acr.xml
gdb-xml/s390-fpr.xml gdb-xml/s390-vx.xml gdb-xml/s390-cr.xml
gdb-xml/s390-virt.xml gdb-xml/s390-virt-kvm.xml gdb-xml/s390-gs.xml
TARGET_LONG_BITS=64
diff --git a/configs/targets/sparc-softmmu.mak
b/configs/targets/sparc-softmmu.mak
index 78c2e25bd1..57801faf1f 100644
--- a/configs/targets/sparc-softmmu.mak
+++ b/configs/targets/sparc-softmmu.mak
@@ -1,4 +1,3 @@
TARGET_ARCH=sparc
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=32
diff --git a/configs/targets/sparc64-softmmu.mak
b/configs/targets/sparc64-softmmu.mak
index f7bab97a00..2504e31ae3 100644
--- a/configs/targets/sparc64-softmmu.mak
+++ b/configs/targets/sparc64-softmmu.mak
@@ -1,5 +1,4 @@
TARGET_ARCH=sparc64
TARGET_BASE_ARCH=sparc
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=64
diff --git a/configs/targets/x86_64-softmmu.mak
b/configs/targets/x86_64-softmmu.mak
index 1ceefde131..5619b2bc68 100644
--- a/configs/targets/x86_64-softmmu.mak
+++ b/configs/targets/x86_64-softmmu.mak
@@ -1,6 +1,5 @@
TARGET_ARCH=x86_64
TARGET_BASE_ARCH=i386
-TARGET_SUPPORTS_MTTCG=y
TARGET_KVM_HAVE_GUEST_DEBUG=y
TARGET_KVM_HAVE_RESET_PARKED_VCPU=y
TARGET_XML_FILES= gdb-xml/i386-64bit.xml
diff --git a/configs/targets/xtensa-softmmu.mak
b/configs/targets/xtensa-softmmu.mak
index 65845df4ff..2a9797338a 100644
--- a/configs/targets/xtensa-softmmu.mak
+++ b/configs/targets/xtensa-softmmu.mak
@@ -1,3 +1,2 @@
TARGET_ARCH=xtensa
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=32
diff --git a/configs/targets/xtensaeb-softmmu.mak
b/configs/targets/xtensaeb-softmmu.mak
index f1f789d697..5204729af8 100644
--- a/configs/targets/xtensaeb-softmmu.mak
+++ b/configs/targets/xtensaeb-softmmu.mak
@@ -1,4 +1,3 @@
TARGET_ARCH=xtensa
TARGET_BIG_ENDIAN=y
-TARGET_SUPPORTS_MTTCG=y
TARGET_LONG_BITS=32
diff --git a/docs/devel/multi-thread-tcg.rst b/docs/devel/multi-thread-tcg.rst
index 14a2a9dc7b..da9a1530c9 100644
--- a/docs/devel/multi-thread-tcg.rst
+++ b/docs/devel/multi-thread-tcg.rst
@@ -30,7 +30,7 @@ user-space thread. This is enabled by default for all FE/BE
combinations where the host memory model is able to accommodate the
guest (TCGCPUOps::guest_default_memory_order & ~TCG_TARGET_DEFAULT_MO is zero)
and the guest has had the required work done to support this safely
-(TARGET_SUPPORTS_MTTCG).
+(TCGCPUOps::mttcg_supported).
System emulation will fall back to the original round robin approach
if:
--
2.43.0
