Thomas Huth <[email protected]> writes: > On 02/10/2019 13.31, Sergio Lopez wrote: >> Microvm is a machine type inspired by Firecracker and constructed >> after the its machine model. >> >> It's a minimalist machine type without PCI nor ACPI support, designed >> for short-lived guests. Microvm also establishes a baseline for >> benchmarking and optimizing both QEMU and guest operating systems, >> since it is optimized for both boot time and footprint. >> >> Signed-off-by: Sergio Lopez <[email protected]> >> --- >> default-configs/i386-softmmu.mak | 1 + >> hw/i386/Kconfig | 4 + >> hw/i386/Makefile.objs | 1 + >> hw/i386/microvm.c | 574 +++++++++++++++++++++++++++++++ >> include/hw/i386/microvm.h | 83 +++++ >> 5 files changed, 663 insertions(+) >> create mode 100644 hw/i386/microvm.c >> create mode 100644 include/hw/i386/microvm.h >> >> diff --git a/default-configs/i386-softmmu.mak >> b/default-configs/i386-softmmu.mak >> index 4229900f57..4cc64dafa2 100644 >> --- a/default-configs/i386-softmmu.mak >> +++ b/default-configs/i386-softmmu.mak >> @@ -28,3 +28,4 @@ >> CONFIG_ISAPC=y >> CONFIG_I440FX=y >> CONFIG_Q35=y >> +CONFIG_MICROVM=y >> diff --git a/hw/i386/Kconfig b/hw/i386/Kconfig >> index c5c9d4900e..d399dcba52 100644 >> --- a/hw/i386/Kconfig >> +++ b/hw/i386/Kconfig >> @@ -92,6 +92,10 @@ config Q35 >> select SMBIOS >> select FW_CFG_DMA >> >> +config MICROVM >> + bool >> + select VIRTIO_MMIO > > You also need these switches, I think: > > select I8259 > select ISA_BUS > select SERIAL_ISA > select MC146818RTC > > (ideally, it should be possible to disable all the other machines in > default-configs/i386-softmmu.mak and only compile with CONFIG_MICROVM=y > ... but seems like there are also some other indirect dependencies left)
Yes, probably others too. I didn't bother building an accurate list of components, because when I tried disabling PC, the build broke (I don't remember the details, I think it crashed somewhere around the floppy disk and something else). My intention was, if microvm gets merged, to work on the build system to ensure to make possible a microvm-only build, and fill the actual list of components then. Thanks, Sergio.
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