On 01/03/2018 18:51, Jim Mattson wrote: > No complaints here! It seems sane here too, I'll review the individual patches as soon as possible. Thanks, Paolo > 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
