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| author | Joerg Roedel <joerg.roedel@amd.com> | 2010-09-10 17:30:48 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:52:34 +0200 |
| commit | c30a358d33e0e111f06e54a4a4125371e6b6693c (patch) | |
| tree | bdd1d80f2eca1a63344b80f8e4353095cd06a947 /include/linux | |
| parent | 1e301feb079e8ee6091bb75283e960fc33059a68 (diff) | |
| download | lwn-c30a358d33e0e111f06e54a4a4125371e6b6693c.tar.gz lwn-c30a358d33e0e111f06e54a4a4125371e6b6693c.zip | |
KVM: MMU: Add infrastructure for two-level page walker
This patch introduces a mmu-callback to translate gpa
addresses in the walk_addr code. This is later used to
translate l2_gpa addresses into l1_gpa addresses.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/kvm_host.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index f2ecdd52032b..917e68ff5ed2 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -534,6 +534,11 @@ static inline gpa_t gfn_to_gpa(gfn_t gfn) return (gpa_t)gfn << PAGE_SHIFT; } +static inline gfn_t gpa_to_gfn(gpa_t gpa) +{ + return (gfn_t)(gpa >> PAGE_SHIFT); +} + static inline hpa_t pfn_to_hpa(pfn_t pfn) { return (hpa_t)pfn << PAGE_SHIFT; |