configure, meson: move TPM check to meson

The check is simply for a POSIX system.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

backends/tpm/meson.build

@@ -1,8 +1,6 @@
-tpm_ss = ss.source_set()
-
-tpm_ss.add(files('tpm_backend.c'))
-tpm_ss.add(files('tpm_util.c'))
-tpm_ss.add(when: 'CONFIG_TPM_PASSTHROUGH', if_true: files('tpm_passthrough.c'))
-tpm_ss.add(when: 'CONFIG_TPM_EMULATOR', if_true: files('tpm_emulator.c'))
-
-softmmu_ss.add_all(when: 'CONFIG_TPM', if_true: tpm_ss)
+if have_tpm
+  softmmu_ss.add(files('tpm_backend.c'))
+  softmmu_ss.add(files('tpm_util.c'))
+  softmmu_ss.add(when: 'CONFIG_TPM_PASSTHROUGH', if_true: files('tpm_passthrough.c'))
+  softmmu_ss.add(when: 'CONFIG_TPM_EMULATOR', if_true: files('tpm_emulator.c'))
+endif

configure

@@ -330,7 +330,6 @@ coroutine=""
 coroutine_pool="$default_feature"
 debug_stack_usage="no"
 tls_priority="NORMAL"
-tpm="$default_feature"
 live_block_migration=${default_feature:-yes}
 replication=${default_feature:-yes}
 bochs=${default_feature:-yes}
@@ -1039,10 +1038,6 @@ for opt do
   ;;
   --disable-pvrdma) pvrdma="no"
   ;;
-  --disable-tpm) tpm="no"
-  ;;
-  --enable-tpm) tpm="yes"
-  ;;
   --disable-live-block-migration) live_block_migration="no"
   ;;
   --enable-live-block-migration) live_block_migration="yes"
@@ -1378,7 +1373,6 @@ cat << EOF
   vhost-vdpa      vhost-vdpa kernel backend support
   live-block-migration   Block migration in the main migration stream
   coroutine-pool  coroutine freelist (better performance)
-  tpm             TPM support
   replication     replication support
   opengl          opengl support
   qom-cast-debug  cast debugging support
@@ -2395,21 +2389,6 @@ if test "$modules" = yes; then
     fi
 fi
 
-##########################################
-# TPM emulation is only on POSIX
-
-if test "$tpm" = ""; then
-  if test "$mingw32" = "yes"; then
-    tpm=no
-  else
-    tpm=yes
-  fi
-elif test "$tpm" = "yes"; then
-  if test "$mingw32" = "yes" ; then
-    error_exit "TPM emulation only available on POSIX systems"
-  fi
-fi
-
 ##########################################
 # fdt probe
 
@@ -3274,10 +3253,6 @@ if test "$live_block_migration" = "yes" ; then
   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
 fi
 
-if test "$tpm" = "yes"; then
-  echo 'CONFIG_TPM=y' >> $config_host_mak
-fi
-
 if test "$rdma" = "yes" ; then
   echo "CONFIG_RDMA=y" >> $config_host_mak
   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak

docs/devel/kconfig.rst

@@ -301,7 +301,7 @@ and also listed as follows in the top-level meson.build's host_kconfig
 variable::
 
     host_kconfig = \
-      ('CONFIG_TPM' in config_host ? ['CONFIG_TPM=y'] : []) + \
+      (have_tpm ? ['CONFIG_TPM=y'] : []) + \
       ('CONFIG_SPICE' in config_host ? ['CONFIG_SPICE=y'] : []) + \
       (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
       ...

hw/acpi/meson.build

@@ -25,7 +25,9 @@ acpi_ss.add(when: 'CONFIG_ACPI_X86_ICH', if_true: files('ich9.c', 'tco.c'))
 acpi_ss.add(when: 'CONFIG_ACPI_ERST', if_true: files('erst.c'))
 acpi_ss.add(when: 'CONFIG_IPMI', if_true: files('ipmi.c'), if_false: files('ipmi-stub.c'))
 acpi_ss.add(when: 'CONFIG_PC', if_false: files('acpi-x86-stub.c'))
-acpi_ss.add(when: 'CONFIG_TPM', if_true: files('tpm.c'))
+if have_tpm
+  acpi_ss.add(files('tpm.c'))
+endif
 softmmu_ss.add(when: 'CONFIG_ACPI', if_false: files('acpi-stub.c', 'aml-build-stub.c', 'ghes-stub.c'))
 softmmu_ss.add_all(when: 'CONFIG_ACPI', if_true: acpi_ss)
 softmmu_ss.add(when: 'CONFIG_ALL', if_true: files('acpi-stub.c', 'aml-build-stub.c',

meson.build

@@ -276,6 +276,10 @@ multiprocess_allowed = get_option('multiprocess') \
   .require(targetos == 'linux', error_message: 'Multiprocess QEMU is supported only on Linux') \
   .allowed()
 
+have_tpm = get_option('tpm') \
+  .require(targetos != 'windows', error_message: 'TPM emulation only available on POSIX systems') \
+  .allowed()
+
 # Target-specific libraries and flags
 libm = cc.find_library('m', required: false)
 threads = dependency('threads')
@@ -1492,6 +1496,7 @@ config_host_data.set('CONFIG_SDL', sdl.found())
 config_host_data.set('CONFIG_SDL_IMAGE', sdl_image.found())
 config_host_data.set('CONFIG_SECCOMP', seccomp.found())
 config_host_data.set('CONFIG_SNAPPY', snappy.found())
+config_host_data.set('CONFIG_TPM', have_tpm)
 config_host_data.set('CONFIG_USB_LIBUSB', libusb.found())
 config_host_data.set('CONFIG_VDE', vde.found())
 config_host_data.set('CONFIG_VHOST_USER_BLK_SERVER', have_vhost_user_blk_server)
@@ -1942,7 +1947,7 @@ endif
 have_ivshmem = config_host_data.get('CONFIG_EVENTFD')
 host_kconfig = \
   (get_option('fuzzing') ? ['CONFIG_FUZZ=y'] : []) + \
-  ('CONFIG_TPM' in config_host ? ['CONFIG_TPM=y'] : []) + \
+  (have_tpm ? ['CONFIG_TPM=y'] : []) + \
   (spice.found() ? ['CONFIG_SPICE=y'] : []) + \
   (have_ivshmem ? ['CONFIG_IVSHMEM=y'] : []) + \
   ('CONFIG_OPENGL' in config_host ? ['CONFIG_OPENGL=y'] : []) + \
@@ -3556,7 +3561,7 @@ if targetos == 'windows'
 endif
 summary_info += {'seccomp support':   seccomp}
 summary_info += {'GlusterFS support': glusterfs}
-summary_info += {'TPM support':       config_host.has_key('CONFIG_TPM')}
+summary_info += {'TPM support':       have_tpm}
 summary_info += {'libssh support':    libssh}
 summary_info += {'lzo support':       lzo}
 summary_info += {'snappy support':    snappy}

meson_options.txt

@@ -68,6 +68,8 @@ option('multiprocess', type: 'feature', value: 'auto',
        description: 'Out of process device emulation support')
 option('dbus_display', type: 'feature', value: 'auto',
        description: '-display dbus support')
+option('tpm', type : 'feature', value : 'auto',
+       description: 'TPM support')
 
 # Do not enable it by default even for Mingw32, because it doesn't
 # work on Wine.

scripts/meson-buildoptions.sh

@@ -86,6 +86,7 @@ meson_options_help() {
   printf "%s\n" '  spice           Spice server support'
   printf "%s\n" '  spice-protocol  Spice protocol support'
   printf "%s\n" '  tcg             TCG support'
+  printf "%s\n" '  tpm             TPM support'
   printf "%s\n" '  u2f             U2F emulation support'
   printf "%s\n" '  usb-redir       libusbredir support'
   printf "%s\n" '  vde             vde network backend support'
@@ -256,6 +257,8 @@ _meson_option_parse() {
     --disable-tcg) printf "%s" -Dtcg=disabled ;;
     --enable-tcg-interpreter) printf "%s" -Dtcg_interpreter=true ;;
     --disable-tcg-interpreter) printf "%s" -Dtcg_interpreter=false ;;
+    --enable-tpm) printf "%s" -Dtpm=enabled ;;
+    --disable-tpm) printf "%s" -Dtpm=disabled ;;
     --enable-trace-backends=*) quote_sh "-Dtrace_backends=$2" ;;
     --enable-u2f) printf "%s" -Du2f=enabled ;;
     --disable-u2f) printf "%s" -Du2f=disabled ;;

softmmu/meson.build

@@ -27,6 +27,9 @@ softmmu_ss.add(files(
   'qdev-monitor.c',
 ), sdl, libpmem, libdaxctl)
 
-softmmu_ss.add(when: 'CONFIG_TPM', if_true: files('tpm.c'))
+if have_tpm
+  softmmu_ss.add(files('tpm.c'))
+endif
+
 softmmu_ss.add(when: seccomp, if_true: files('qemu-seccomp.c'))
 softmmu_ss.add(when: fdt, if_true: files('device_tree.c'))