This implements Avi's suggestion of having two separate kvm_memslots for regular and SMM operation, corresponding to different address spaces. All in all, the surgery is limited even though there are a few preparatory patches that touch all architectures. The amount of added code for the vcpu-specific versions of kvm_read_guest and kvm_write_guest is smaller, and duplication is limited to a couple of functions. Even the rmap parts, which scared me a lot when the first version OOPSed on me, :) are actually very easy. Patches 1-6 are preparatory cleanups that can be applied separately, while the others will be posted in v2 of the SMM patches. Patches 7-8 add the new functions (this time in virt/kvm/kvm_main.c). Architectures can then define a function kvm_arch_vcpu_memslots_id that returns the active address space id for a given VCPU. The address space ID must be passed to KVM_SET_USER_MEMORY_REGION and KVM_GET_DIRTY_LOG, using the high 16 bits of the slot id. Patch 9 then does VCPU-specific accesses in x86, and patch 10 loops over the SMM slots as well on memslot iterations. Patch 11 then introduces the SMRAM address space, which is very simple after all the legwork. Thanks for the reviews, Paolo Paolo Bonzini (11): KVM: introduce kvm_alloc/free_memslots KVM: use kvm_memslots whenever possible KVM: const-ify uses of struct kvm_userspace_memory_region KVM: add memslots argument to kvm_arch_memslots_updated KVM: add "new" argument to kvm_arch_commit_memory_region KVM: x86: pass kvm_mmu_page to gfn_to_rmap KVM: add vcpu-specific functions to read/write/translate GFNs KVM: implement multiple address spaces KVM: x86: use vcpu-specific functions to read/write/translate GFNs KVM: x86: work on all available address spaces KVM: x86: add SMM to the MMU role, support SMRAM address space Documentation/virtual/kvm/api.txt | 12 ++ arch/arm/kvm/mmu.c | 10 +- arch/mips/include/asm/kvm_host.h | 2 +- arch/mips/kvm/mips.c | 9 +- arch/powerpc/include/asm/kvm_book3s_64.h | 2 +- arch/powerpc/include/asm/kvm_host.h | 2 +- arch/powerpc/include/asm/kvm_ppc.h | 10 +- arch/powerpc/kvm/book3s.c | 9 +- arch/powerpc/kvm/book3s_64_mmu_hv.c | 2 +- arch/powerpc/kvm/book3s_hv.c | 15 +- arch/powerpc/kvm/book3s_pr.c | 11 +- arch/powerpc/kvm/booke.c | 7 +- arch/powerpc/kvm/powerpc.c | 7 +- arch/s390/include/asm/kvm_host.h | 2 +- arch/s390/kvm/kvm-s390.c | 9 +- arch/x86/include/asm/kvm_host.h | 29 +-- arch/x86/kvm/mmu.c | 143 +++++++------- arch/x86/kvm/paging_tmpl.h | 14 +- arch/x86/kvm/svm.c | 16 +- arch/x86/kvm/vmx.c | 34 ++-- arch/x86/kvm/x86.c | 99 +++++++--- include/linux/kvm_host.h | 54 +++++- include/linux/kvm_types.h | 1 + include/uapi/linux/kvm.h | 1 + virt/kvm/kvm_main.c | 314 ++++++++++++++++++++++--------- 25 files changed, 548 insertions(+), 266 deletions(-) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
