]> git.proxmox.com Git - mirror_ubuntu-disco-kernel.git/commit
KVM: Allow cross page reads and writes from cached translations.
authorAndrew Honig <ahonig@google.com>
Fri, 29 Mar 2013 16:35:21 +0000 (09:35 -0700)
committerGleb Natapov <gleb@redhat.com>
Sun, 7 Apr 2013 10:05:35 +0000 (13:05 +0300)
commit8f964525a121f2ff2df948dac908dcc65be21b5b
tree1986d7677a1cae8f639c91812da2d8c6ed5bba26
parent09a6e1f4ad32243989b30485f78985c0923284cd
KVM: Allow cross page reads and writes from cached translations.

This patch adds support for kvm_gfn_to_hva_cache_init functions for
reads and writes that will cross a page.  If the range falls within
the same memslot, then this will be a fast operation.  If the range
is split between two memslots, then the slower kvm_read_guest and
kvm_write_guest are used.

Tested: Test against kvm_clock unit tests.

Signed-off-by: Andrew Honig <ahonig@google.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
arch/x86/kvm/lapic.c
arch/x86/kvm/x86.c
include/linux/kvm_host.h
include/linux/kvm_types.h
virt/kvm/kvm_main.c