Displaying 1 result from an estimated 1 matches for "init_ioapic_mappings".
2013 May 02
5
[PATCH] x86: allow Dom0 read-only access to IO-APICs
...n = paddr_to_pfn(mp_ioapics[i].mpc_apicaddr);
- if ( smp_found_config )
+ if ( !rangeset_contains_singleton(mmio_ro_ranges, mfn) )
rc |= iomem_deny_access(dom0, mfn, mfn);
}
--- a/xen/arch/x86/io_apic.c
+++ b/xen/arch/x86/io_apic.c
@@ -2468,6 +2468,9 @@ void __init init_ioapic_mappings(void)
unsigned int i, idx = FIX_IO_APIC_BASE_0;
union IO_APIC_reg_01 reg_01;
+ mmio_ro_ranges = rangeset_new(NULL, "r/o mmio ranges",
+ RANGESETF_prettyprint_hex);
+
if ( smp_found_config )
nr_irqs_gsi = 0;
for ( i = 0; i...