On Fri, Oct 25, 2024 at 04:14:45PM +0200, David Hildenbrand wrote: > Let's finally add s390 support for virtio-mem; my last RFC was sent > 4 years ago, and a lot changed in the meantime. > > The latest QEMU series is available at [1], which contains some more > details and a usage example on s390 (last patch). > > There is not too much in here: The biggest part is querying a new diag(500) > STORAGE_LIMIT hypercall to obtain the proper "max_physmem_end". ... > David Hildenbrand (7): > Documentation: s390-diag.rst: make diag500 a generic KVM hypercall > Documentation: s390-diag.rst: document diag500(STORAGE LIMIT) > subfunction > s390/physmem_info: query diag500(STORAGE LIMIT) to support QEMU/KVM > memory devices > virtio-mem: s390 support > lib/Kconfig.debug: default STRICT_DEVMEM to "y" on s390 > s390/sparsemem: reduce section size to 128 MiB > s390/sparsemem: provide memory_add_physaddr_to_nid() with CONFIG_NUMA > > Documentation/virt/kvm/s390/s390-diag.rst | 35 +++++++++++++---- > arch/s390/boot/physmem_info.c | 47 ++++++++++++++++++++++- > arch/s390/boot/startup.c | 7 +++- > arch/s390/include/asm/physmem_info.h | 3 ++ > arch/s390/include/asm/sparsemem.h | 10 ++++- > drivers/virtio/Kconfig | 12 +++--- > lib/Kconfig.debug | 2 +- > 7 files changed, 98 insertions(+), 18 deletions(-) I'll apply the whole series as soon as there are ACKs for the third patch, and from the KVM guys for the whole series. Christian, Janosch, Claudio?
