diff options
| -rw-r--r-- | xen/arch/x86/domain_build.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/xen/arch/x86/domain_build.c b/xen/arch/x86/domain_build.c index 03fe845e4b..8365f327f4 100644 --- a/xen/arch/x86/domain_build.c +++ b/xen/arch/x86/domain_build.c @@ -1122,6 +1122,10 @@ int __init construct_dom0( if ( !rangeset_contains_singleton(mmio_ro_ranges, mfn) ) rc |= iomem_deny_access(dom0, mfn, mfn); } + /* MSI range. */ + rc |= iomem_deny_access(dom0, paddr_to_pfn(MSI_ADDR_BASE_LO), + paddr_to_pfn(MSI_ADDR_BASE_LO + + MSI_ADDR_DEST_ID_MASK)); /* Remove access to E820_UNUSABLE I/O regions above 1MB. */ for ( i = 0; i < e820.nr_map; i++ ) |