]> git.karo-electronics.de Git - linux-beck.git/commitdiff
iommu/vt-d: Fix address shifting in page request handler
authorDavid Woodhouse <David.Woodhouse@intel.com>
Fri, 16 Oct 2015 16:22:31 +0000 (17:22 +0100)
committerDavid Woodhouse <David.Woodhouse@intel.com>
Fri, 16 Oct 2015 16:22:34 +0000 (17:22 +0100)
This really should be VTD_PAGE_SHIFT, not PAGE_SHIFT. Not that we ever
really anticipate seeing this used on IA64, but we should get it right
anyway.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
drivers/iommu/intel-svm.c

index 99a78030857b78d5e31c5d53db8b2627238fa069..24ee57c0786d018a5c9e2e447ac6ba03ba3063d7 100644 (file)
@@ -490,7 +490,7 @@ static irqreturn_t prq_event_thread(int irq, void *d)
                req = &iommu->prq[head / sizeof(*req)];
 
                result = QI_RESP_FAILURE;
-               address = (u64)req->addr << PAGE_SHIFT;
+               address = (u64)req->addr << VTD_PAGE_SHIFT;
                if (!req->pasid_present) {
                        pr_err("%s: Page request without PASID: %08llx %08llx\n",
                               iommu->name, ((unsigned long long *)req)[0],