target/hexagon: add build config for softmmu

Reviewed-by: Taylor Simpson <ltaylorsimpson@gmail.com>
Reviewed-by: Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>
Acked-by: Philippe Mathieu-Daudé <philmd@mailo.com>
Signed-off-by: Brian Cain <brian.cain@oss.qualcomm.com>

MAINTAINERS

@@ -256,6 +256,7 @@ F: linux-user/hexagon/
 F: tests/tcg/hexagon/
 F: disas/hexagon.c
 F: configs/targets/hexagon-linux-user.mak
+F: configs/targets/hexagon-softmmu.mak
 F: tests/docker/dockerfiles/debian-hexagon-cross.docker
 F: gdbstub/gdb-xml/hexagon*.xml
 F: docs/system/target-hexagon.rst

configs/devices/hexagon-softmmu/default.mak

@@ -0,0 +1,6 @@
+# Default configuration for hexagon-softmmu
+
+# Uncomment the following lines to disable these optional devices:
+
+# Boards are selected by default, uncomment to keep out of the build.
+# CONFIG_HEX_DSP=y

configs/targets/hexagon-softmmu.mak

@@ -0,0 +1,7 @@
+# Default configuration for hexagon-softmmu
+
+TARGET_ARCH=hexagon
+TARGET_XML_FILES=hexagon-core.xml hexagon-hvx.xml
+TARGET_LONG_BITS=32
+TARGET_NOT_USING_LEGACY_LDST_PHYS_API=y
+TARGET_NOT_USING_LEGACY_NATIVE_ENDIAN_API=y

target/Kconfig

@@ -16,6 +16,7 @@ source sh4/Kconfig
 source sparc/Kconfig
 source tricore/Kconfig
 source xtensa/Kconfig
+source hexagon/Kconfig
 
 config TARGET_BIG_ENDIAN
     bool

target/hexagon/Kconfig

@@ -0,0 +1,2 @@
+config HEXAGON
+    bool

target/hexagon/cpu.h

@@ -38,10 +38,7 @@ typedef struct HexagonGlobalRegState HexagonGlobalRegState;
 #include "hw/core/registerfields.h"
 #include "qemu/bitmap.h"
 
-#ifndef CONFIG_USER_ONLY
-#error "Hexagon does not support system emulation"
-#endif
-
+#include "target/hexagon/reg_fields.h"
 
 #define NUM_PREGS 4
 #define TOTAL_PER_THREAD_REGS 64

target/hexagon/meson.build

@@ -235,6 +235,7 @@ decodetree_trans_funcs_generated = custom_target(
     command: [python, files('gen_trans_funcs.py'), semantics_generated, '@OUTPUT@'],
 )
 hexagon_ss.add(decodetree_trans_funcs_generated)
+hexagon_softmmu_ss = ss.source_set()
 
 hexagon_ss.add(files(
     'cpu.c',
@@ -253,6 +254,14 @@ hexagon_ss.add(files(
     'mmvec/system_ext_mmvec.c',
 ))
 
+hexagon_softmmu_ss.add(files(
+    'cpu_helper.c',
+    'hex_mmu.c',
+    'hex_interrupts.c',
+    'hexswi.c',
+    'machine.c',
+))
+
 #
 # Step 4.5
 # We use flex/bison based idef-parser to generate TCG code for a lot
@@ -262,7 +271,8 @@ hexagon_ss.add(files(
 #     idef-generated-enabled-instructions
 #
 idef_parser_enabled = get_option('hexagon_idef_parser')
-if idef_parser_enabled and 'hexagon-linux-user' in target_dirs
+if idef_parser_enabled and ('hexagon-linux-user' in target_dirs or
+                            'hexagon-softmmu' in target_dirs)
     idef_parser_input_generated = custom_target(
         'idef_parser_input.h.inc',
         output: 'idef_parser_input.h.inc',
@@ -390,3 +400,4 @@ analyze_funcs_generated = custom_target(
 hexagon_ss.add(analyze_funcs_generated)
 
 target_arch += {'hexagon': hexagon_ss}
+target_system_arch += {'hexagon': hexagon_softmmu_ss}