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* kconfig: add CONFIG_MSI_NONBROKENPaolo Bonzini2019-03-181-0/+1
| | | | | | | | | | | | | | Not all interrupt controllers have a working implementation of message-signalled interrupts; in some cases, the guest may expect MSI to work but it won't due to the buggy or lacking emulation. In QEMU this is represented by the "msi_nonbroken" variable. This patch adds a new configuration symbol enabled whenever the binary contains an interrupt controller that will set "msi_nonbroken". We can then use it to remove devices that cannot be possibly added to the machine, because they require MSI. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* s390x: express dependencies with KconfigThomas Huth2019-03-071-0/+9
| | | | | | | | | | | | | | | | Instead of hard-coding all config switches in the config file default-configs/s390x-softmmu.mak, let's use the new Kconfig files to express the necessary dependencies: The S390_CCW_VIRTIO config switch for the "s390-ccw-virtio" machine now selects all non-optional devices. And since we already have the VIRTIO_PCI and VIRTIO_MMIO config switches for the other two virtio transports, this patch also introduces a new config switch VIRTIO_CCW for the third, s390x-specific virtio transport, so that all three virtio transports are now handled in the same way. Signed-off-by: Thomas Huth <thuth@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* kconfig: introduce kconfig filesPaolo Bonzini2019-03-071-0/+2
The Kconfig files were generated mostly with this script: for i in `grep -ho CONFIG_[A-Z0-9_]* default-configs/* | sort -u`; do set fnord `git grep -lw $i -- 'hw/*/Makefile.objs' ` shift if test $# = 1; then cat >> $(dirname $1)/Kconfig << EOF config ${i#CONFIG_} bool EOF git add $(dirname $1)/Kconfig else echo $i $* fi done sed -i '$d' hw/*/Kconfig for i in hw/*; do if test -d $i && ! test -f $i/Kconfig; then touch $i/Kconfig git add $i/Kconfig fi done Whenever a symbol is referenced from multiple subdirectories, the script prints the list of directories that reference the symbol. These symbols have to be added manually to the Kconfig files. Kconfig.host and hw/Kconfig were created manually. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <20190123065618.3520-27-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>