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| author | Tim Deegan <tim@xen.org> | 2011-08-23 10:43:25 +0100 |
|---|---|---|
| committer | Tim Deegan <tim@xen.org> | 2011-08-23 10:43:25 +0100 |
| commit | ce686e3169f5e3aaee650d2120962851d351c9e7 (patch) | |
| tree | 9ff0b4f23dcd7fcfffa7a76956dde39a1a8ec9fb /xen/include/xen/iommu.h | |
| parent | 6abdf3c829a15d8e051e2bf3fd231c45b70643f6 (diff) | |
| download | xen-ce686e3169f5e3aaee650d2120962851d351c9e7.tar.gz xen-ce686e3169f5e3aaee650d2120962851d351c9e7.tar.bz2 xen-ce686e3169f5e3aaee650d2120962851d351c9e7.zip | |
IOMMU: only try to share IOMMU and HAP tables for domains with P2M.
This makes the check more precise, and brings VTd in line with AMD code.
Signed-off-by: Tim Deegan <tim@xen.org>
Diffstat (limited to 'xen/include/xen/iommu.h')
| -rw-r--r-- | xen/include/xen/iommu.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h index a8a60f9ae3..ade8690417 100644 --- a/xen/include/xen/iommu.h +++ b/xen/include/xen/iommu.h @@ -34,6 +34,9 @@ extern bool_t iommu_hap_pt_share; extern bool_t iommu_debug; extern bool_t amd_iommu_perdev_intremap; +/* Does this domain have a P2M table we can use as its IOMMU pagetable? */ +#define iommu_use_hap_pt(d) (paging_mode_hap(d) && iommu_hap_pt_share) + extern struct rangeset *mmio_ro_ranges; #define domain_hvm_iommu(d) (&d->arch.hvm_domain.hvm_iommu) |