dbb9e0f40d
Add a new memory backend, similar to hostmem-file, except that it doesn't need to create files. It also enforces memory sealing. This backend is mainly useful for sharing the memory with other processes. Note that Linux supports transparent huge-pages of shmem/memfd memory since 4.8. It is relatively easier to set up THP than a dedicate hugepage mount point by using "madvise" in /sys/kernel/mm/transparent_hugepage/shmem_enabled. Since 4.14, memfd allows to set hugetlb requirement explicitly. Pending for merge in 4.16 is memfd sealing support for hugetlb backed memory. Usage: -object memory-backend-memfd,id=mem1,size=1G Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20180201132757.23063-5-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
13 lines
308 B
Makefile
13 lines
308 B
Makefile
common-obj-y += rng.o rng-egd.o
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common-obj-$(CONFIG_POSIX) += rng-random.o
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common-obj-$(CONFIG_TPM) += tpm.o
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common-obj-y += hostmem.o hostmem-ram.o
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common-obj-$(CONFIG_LINUX) += hostmem-file.o
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common-obj-y += cryptodev.o
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common-obj-y += cryptodev-builtin.o
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common-obj-$(CONFIG_LINUX) += hostmem-memfd.o
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