KVM: Use a shared page for kernel/user communication when runing a vcpu

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Instead of passing a 'struct kvm_run' back and forth between the kernel and
userspace, allocate a page and allow the user to mmap() it.  This reduces
needless copying and makes the interface expandable by providing lots of
free space.

Signed-off-by: Avi Kivity <avi@qumranet.com>

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This commit is contained in:

Avi Kivity 2007-02-22 12:58:31 +02:00

parent 1ea252afcd

commit 9a2bb7f486

3 changed files with 44 additions and 17 deletions

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1

drivers/kvm/kvm.h

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54

drivers/kvm/kvm_main.c

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6

include/linux/kvm.h

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