This series unifies the memory allocators in kvm-unit-tests: - x86 startup code sets up phys_alloc using the e801 memory map information from multiboot. phys_alloc remains active until the tests call setup_vm. phys_alloc is very simple and is not able to free any memory. - a new MMU-friendly alloc_ops implementation is provided based on lib/x86/vm.c. The new alloc_ops relies on a physical page allocator (in lib/alloc_page.c), which is initialized from the final phys_alloc state, and a virtual address allocator. The alloc_ops get physical pages and maps them into a contiguous virtual address space range. The entry points for the architecture-dependent APIs are setup_mmu, install_page and virt_to_pte_phys. lib/x86/vm.c implements them together with other x86-specific functions. TODO: test ARM and PPC; implement the new API for ARM/PPC/s390 (probably using a soft TLB approach, similar to Linux, for PPC hashed page tables); support sub-page allocation in the new alloc_ops. Paolo Paolo Bonzini (10): lib: simplify alloc_ops lib: move vmalloc here from x86 lib: move page allocator here from x86 alloc_page: fix off-by-one x86: leave VM setup out of vtd_init x86: prepare for extending setup.c x86: use alloc_phys alloc: implement free x86: turn virt_to_phys_cr3 into virt_to_pte_phys vmalloc: convert to alloc_ops arm/Makefile.common | 2 +- lib/alloc.c | 203 +++++++++++----------------------------------- lib/alloc.h | 90 ++------------------- lib/alloc_page.c | 116 +++++++++++++++++++++++++++ lib/alloc_page.h | 16 ++++ lib/alloc_phys.c | 132 ++++++++++++++++++++++++++++++ lib/alloc_phys.h | 45 +++++++++++ lib/arm/setup.c | 1 + lib/libcflat.h | 2 + lib/powerpc/setup.c | 1 + lib/vmalloc.c | 98 +++++++++++++++++++++++ lib/vmalloc.h | 11 +++ lib/x86/asm/page.h | 4 + lib/x86/intel-iommu.c | 4 +- lib/x86/intel-iommu.h | 1 - lib/x86/io.c | 2 +- lib/x86/isr.c | 5 +- lib/x86/setup.c | 49 +++++++++--- lib/x86/vm.c | 204 ++++------------------------------------------- lib/x86/vm.h | 12 --- powerpc/Makefile.common | 2 +- s390x/Makefile | 2 +- x86/Makefile.common | 4 + x86/asyncpf.c | 6 +- x86/cstart.S | 4 +- x86/cstart64.S | 4 +- x86/emulator.c | 2 + x86/eventinj.c | 4 +- x86/hypercall.c | 1 + x86/hyperv_clock.c | 1 + x86/hyperv_connections.c | 1 + x86/hyperv_stimer.c | 1 + x86/hyperv_synic.c | 1 + x86/intel-iommu.c | 5 ++ x86/pmu.c | 4 +- x86/rmap_chain.c | 1 + x86/sieve.c | 6 +- x86/svm.c | 1 + x86/taskswitch.c | 1 + x86/taskswitch2.c | 1 + x86/vmx.c | 1 + x86/vmx_tests.c | 2 + 42 files changed, 575 insertions(+), 478 deletions(-) create mode 100644 lib/alloc_page.c create mode 100644 lib/alloc_page.h create mode 100644 lib/alloc_phys.c create mode 100644 lib/alloc_phys.h create mode 100644 lib/vmalloc.c create mode 100644 lib/vmalloc.h -- 2.14.2
