lkml.org 
[lkml]   [2020]   [Mar]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v7 02/14] KVM: Cache as_id in kvm_memory_slot
    Date
    Cache the address space ID just like the slot ID.  It will be used in
    order to fill in the dirty ring entries.

    Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
    Suggested-by: Sean Christopherson <sean.j.christopherson@intel.com>
    Signed-off-by: Peter Xu <peterx@redhat.com>
    ---
    include/linux/kvm_host.h | 1 +
    virt/kvm/kvm_main.c | 1 +
    2 files changed, 2 insertions(+)

    diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
    index 35bc52e187a2..2def86edcd65 100644
    --- a/include/linux/kvm_host.h
    +++ b/include/linux/kvm_host.h
    @@ -346,6 +346,7 @@ struct kvm_memory_slot {
    unsigned long userspace_addr;
    u32 flags;
    short id;
    + u16 as_id;
    };

    static inline unsigned long kvm_dirty_bitmap_bytes(struct kvm_memory_slot *memslot)
    diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
    index 28eae681859f..e24e7111a308 100644
    --- a/virt/kvm/kvm_main.c
    +++ b/virt/kvm/kvm_main.c
    @@ -1240,6 +1240,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
    if (!mem->memory_size)
    return kvm_delete_memslot(kvm, mem, &old, as_id);

    + new.as_id = as_id;
    new.id = id;
    new.base_gfn = mem->guest_phys_addr >> PAGE_SHIFT;
    new.npages = mem->memory_size >> PAGE_SHIFT;
    --
    2.24.1
    \
     
     \ /
      Last update: 2020-03-18 17:38    [W:4.161 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site