[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH] x86/mtrr: recalculate P2M type for domains with iocaps
This change reflects the logic in epte_get_entry_emt() and allows changes in guest MTTRs to be reflected in EPT for domains having direct access to certain hardware memory regions but without IOMMU context assigned (e.g. XenGT). Signed-off-by: Igor Druzhinin <igor.druzhinin@xxxxxxxxxx> --- xen/arch/x86/hvm/mtrr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/arch/x86/hvm/mtrr.c b/xen/arch/x86/hvm/mtrr.c index b8fa340..7ccd85b 100644 --- a/xen/arch/x86/hvm/mtrr.c +++ b/xen/arch/x86/hvm/mtrr.c @@ -783,7 +783,7 @@ HVM_REGISTER_SAVE_RESTORE(MTRR, hvm_save_mtrr_msr, hvm_load_mtrr_msr, 1, void memory_type_changed(struct domain *d) { - if ( has_iommu_pt(d) && d->vcpu && d->vcpu[0] ) + if ( (has_iommu_pt(d) || cache_flush_permitted(d)) && d->vcpu && d->vcpu[0] ) { p2m_memory_type_changed(d); flush_all(FLUSH_CACHE); -- 2.7.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-devel
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