Commit 7aaa6a16 authored by Paolo Bonzini's avatar Paolo Bonzini
Browse files

tpm: express dependencies with Kconfig 



This automatically removes the TPM backends from the
binary altogether if no front-ends are selected.

Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent b42075bb

configure

+12 −12
Original line number Diff line number Diff line
@@ -466,7 +466,7 @@ gcrypt_hmac="no" 
auth_pam=""

vte=""

virglrenderer=""

tpm="yes"

tpm=""

libssh2=""

live_block_migration="yes"

numa=""
@@ -3877,20 +3877,20 @@ EOF 
fi



##########################################

# TPM passthrough is only on x86 Linux

# TPM emulation is only on POSIX



if test "$targetos" = Linux && { test "$cpu" = i386 || test "$cpu" = x86_64; }; then

  tpm_passthrough=$tpm

if test "$tpm" = ""; then

  if test "$mingw32" = "yes"; then

    tpm=no

  else

  tpm_passthrough=no

    tpm=yes

  fi

elif test "$tpm" = "yes"; then

  if test "$mingw32" = "yes" ; then

    error_exit "TPM emulation only available on POSIX systems"

  fi



# TPM emulator is for all posix systems

if test "$mingw32" != "yes"; then

  tpm_emulator=$tpm

else

  tpm_emulator=no

fi



##########################################

# attr probe

hw/tpm/Kconfig

+9 −1
Original line number Diff line number Diff line 
config TPM

config TPMDEV

    bool

    depends on TPM



config TPM_TIS

    bool

    depends on TPM && ISA_BUS

    select TPMDEV



config TPM_CRB

    bool

    depends on TPM && PC

    select TPMDEV



config TPM_PASSTHROUGH

    bool

    default y

    # FIXME: should check for x86 host as well

    depends on TPMDEV && LINUX



config TPM_EMULATOR

    bool

    default y

    depends on TPMDEV