No complaints here! On Thu, Mar 1, 2018 at 7:24 AM, Raslan, KarimAllah <karahmed@xxxxxxxxx> wrote: > Jim/Paolo/Radim, > > Any complains about the current API? (introduced in 4/10) > > I have more patches on top and I would like to ensure that this is > agreed upon at least before sending more revisions/patches. > > Also 1, 2, and 3 should be a bit straight forward and does not use > this API. > > Thanks. > > On Wed, 2018-02-21 at 18:47 +0100, KarimAllah Ahmed wrote: >> For the most part, KVM can handle guest memory that does not have a struct >> page (i.e. not directly managed by the kernel). However, There are a few places >> in the code, specially in the nested code, that does not support that. >> >> Patch 1, 2, and 3 avoid the mapping and unmapping all together and just >> directly use kvm_guest_read and kvm_guest_write. >> >> Patch 4 introduces a new guest mapping interface that encapsulate all the >> bioler plate code that is needed to map and unmap guest memory. It also >> supports guest memory without "struct page". >> >> Patch 5, 6, 7, 8, 9, and 10 switch most of the offending code in VMX and hyperv >> to use the new guest mapping API. >> >> This patch series is the first set of fixes. Handling SVM and APIC-access page >> will be handled in a different patch series. >> >> KarimAllah Ahmed (10): >> X86/nVMX: handle_vmon: Read 4 bytes from guest memory instead of >> map->read->unmap sequence >> X86/nVMX: handle_vmptrld: Copy the VMCS12 directly from guest memory >> instead of map->copy->unmap sequence. >> X86/nVMX: Update the PML table without mapping and unmapping the page >> KVM: Introduce a new guest mapping API >> KVM/nVMX: Use kvm_vcpu_map when mapping the L1 MSR bitmap >> KVM/nVMX: Use kvm_vcpu_map when mapping the virtual APIC page >> KVM/nVMX: Use kvm_vcpu_map when mapping the posted interrupt >> descriptor table >> KVM/X86: Use kvm_vcpu_map in emulator_cmpxchg_emulated >> KVM/X86: hyperv: Use kvm_vcpu_map in synic_clear_sint_msg_pending >> KVM/X86: hyperv: Use kvm_vcpu_map in synic_deliver_msg >> >> arch/x86/kvm/hyperv.c | 28 ++++----- >> arch/x86/kvm/vmx.c | 144 +++++++++++++++-------------------------------- >> arch/x86/kvm/x86.c | 13 ++--- >> include/linux/kvm_host.h | 15 +++++ >> virt/kvm/kvm_main.c | 50 ++++++++++++++++ >> 5 files changed, 129 insertions(+), 121 deletions(-) >> > Amazon Development Center Germany GmbH > Berlin - Dresden - Aachen > main office: Krausenstr. 38, 10117 Berlin > Geschaeftsfuehrer: Dr. Ralf Herbrich, Christian Schlaeger > Ust-ID: DE289237879 > Eingetragen am Amtsgericht Charlottenburg HRB 149173 B
