On 05/27/2015 08:05 PM, Paolo Bonzini wrote:
This brings together the remaining parts of SMM. For now I've left the "weird" interaction between SMM and NMI blocking, and I'm using the same format for the state save area (which is also the one used by QEMU) as the RFC. It builds on the previous cleanup patches, which (with the exception of "KVM: x86: pass kvm_mmu_page to gfn_to_rmap") are now in kvm/queue. The first six patches are more or less the same as the previous version, while the address spaces part hopefully touches all affected functions now. Patches 1-6 implement the SMM API and world switch; patches 7-12 implements the multiple address spaces; patch 13 ties the loose ends and advertises the capability. Tested with SeaBIOS and OVMF, where SMM provides the trusted base for secure boot.
Nice work. While I did not do a thorough review, the mmu bits look robust.
Thanks, Paolo Paolo Bonzini (13): KVM: x86: introduce num_emulated_msrs KVM: x86: pass host_initiated to functions that read MSRs KVM: x86: pass the whole hflags field to emulator and back KVM: x86: API changes for SMM support KVM: x86: stubs for SMM support KVM: x86: save/load state on SMM switch KVM: add vcpu-specific functions to read/write/translate GFNs KVM: implement multiple address spaces KVM: x86: pass kvm_mmu_page to gfn_to_rmap 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 KVM: x86: advertise KVM_CAP_X86_SMM Documentation/virtual/kvm/api.txt | 52 ++- arch/powerpc/include/asm/kvm_book3s_64.h | 2 +- arch/x86/include/asm/kvm_emulate.h | 9 +- arch/x86/include/asm/kvm_host.h | 44 ++- arch/x86/include/asm/vmx.h | 1 + arch/x86/include/uapi/asm/kvm.h | 11 +- arch/x86/kvm/cpuid.h | 8 + arch/x86/kvm/emulate.c | 262 +++++++++++++- arch/x86/kvm/kvm_cache_regs.h | 5 + arch/x86/kvm/lapic.c | 4 +- arch/x86/kvm/mmu.c | 171 +++++----- arch/x86/kvm/mmu_audit.c | 16 +- arch/x86/kvm/paging_tmpl.h | 18 +- arch/x86/kvm/svm.c | 73 ++-- arch/x86/kvm/trace.h | 22 ++ arch/x86/kvm/vmx.c | 106 +++--- arch/x86/kvm/x86.c | 562 ++++++++++++++++++++++++++----- include/linux/kvm_host.h | 49 ++- include/uapi/linux/kvm.h | 6 +- virt/kvm/kvm_main.c | 237 ++++++++++--- 20 files changed, 1337 insertions(+), 321 deletions(-)
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