# HG changeset patch
# User djm@xxxxxxxxxxxxxxx
# Node ID d3594980a8f119712e808aa3d96ffd162e683671
# Parent 7d81d6b8c302b10d205e3b6fa981294fd4e611de
Enable region0 virtual addresss in vcpu_translate (but still broken elsewhere)
Signed-off by: Dan Magenheimer <dan.magenheimer@xxxxxx>
diff -r 7d81d6b8c302 -r d3594980a8f1 xen/arch/ia64/xen/vcpu.c
--- a/xen/arch/ia64/xen/vcpu.c Tue Nov 8 18:15:55 2005
+++ b/xen/arch/ia64/xen/vcpu.c Wed Nov 9 18:26:17 2005
@@ -1287,26 +1287,30 @@
unsigned long recover_to_page_fault_count = 0;
unsigned long recover_to_break_fault_count = 0;
+int warn_region0_address = 0; // FIXME later: tie to a boot parameter?
+
IA64FAULT vcpu_translate(VCPU *vcpu, UINT64 address, BOOLEAN is_data, UINT64
*pteval, UINT64 *itir, UINT64 *iha)
{
unsigned long pta, pte, rid, rr;
int i;
TR_ENTRY *trp;
- if (!(address >> 61)) {
- if (!PSCB(vcpu,metaphysical_mode)) {
- REGS *regs = vcpu_regs(vcpu);
- unsigned long viip = PSCB(vcpu,iip);
- unsigned long vipsr = PSCB(vcpu,ipsr);
- unsigned long iip = regs->cr_iip;
- unsigned long ipsr = regs->cr_ipsr;
- printk("vcpu_translate: bad address %p, viip=%p,
vipsr=%p, iip=%p, ipsr=%p continuing\n", address, viip, vipsr, iip, ipsr);
- }
-
+ if (PSCB(vcpu,metaphysical_mode)) {
+ if (address >> 61) // FIXME: need more precise check here
+ panic_domain(vcpu_regs(vcpu),
+ "vcpu_translate: bad physical address\n");
*pteval = (address & _PAGE_PPN_MASK) | __DIRTY_BITS |
_PAGE_PL_2 | _PAGE_AR_RWX;
*itir = PAGE_SHIFT << 2;
phys_translate_count++;
return IA64_NO_FAULT;
+ }
+ else if (!(address >> 61) && warn_region0_address) {
+ REGS *regs = vcpu_regs(vcpu);
+ unsigned long viip = PSCB(vcpu,iip);
+ unsigned long vipsr = PSCB(vcpu,ipsr);
+ unsigned long iip = regs->cr_iip;
+ unsigned long ipsr = regs->cr_ipsr;
+ printk("vcpu_translate: bad address %p, viip=%p, vipsr=%p,
iip=%p, ipsr=%p continuing\n", address, viip, vipsr, iip, ipsr);
}
rr = PSCB(vcpu,rrs)[address>>61];
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