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scripts/qemu: enable libpmem

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Enable libpmem to support PMEM when running under Kubernetes.

see https://github.com/kata-containers/runtime/issues/2262

According to QEMU's nvdimm documentation: When 'pmem' is 'on' and QEMU is
built with libpmem support, QEMU will take necessary operations to guarantee
the persistence of its own writes to the vNVDIMM backend.

fixes #958

Signed-off-by: Julio Montes <julio.montes@intel.com>
This commit is contained in:
Julio Montes
2020-02-28 17:50:09 +00:00
parent 9a37ebec66
commit c0d45d8ace
6 changed files with 10 additions and 6 deletions
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9
scripts/configure-hypervisor.sh
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@@ -330,10 +330,6 @@ generate_qemu_options() {
qemu_options+=(size:--disable-linux-aio)
if [[ "${qemu_version_major}" -ge 4 || ( "${qemu_version_major}" -eq 3 && "${qemu_version_minor}" -ge 1 ) ]]; then
# Disable libpmem, vNVDIMM backend (aka rootfs image) shouldn't be modifed
# by the guest
qemu_options+=(security:--disable-libpmem)
# Disable graphics
qemu_options+=(size:--disable-virglrenderer)
@@ -396,6 +392,11 @@ generate_qemu_options() {
fi
# Enable libc malloc_trim() for memory optimization.
qemu_options+=(speed:--enable-malloc-trim)
# According to QEMU's nvdimm documentation: When 'pmem' is 'on' and QEMU is
# built with libpmem support, QEMU will take necessary operations to guarantee
# the persistence of its own writes to the vNVDIMM backend.
qemu_options+=(functionality:--enable-libpmem)
fi
#---------------------------------------------------------------------