On Wed, 2013-06-05 at 16:11 +1000, Alexey Kardashevskiy wrote:
This adds real mode handlers for the H_PUT_TCE_INDIRECT and
H_STUFF_TCE hypercalls for QEMU emulated devices such as IBMVIO
devices or emulated PCI. These calls allow adding multiple entries
(up to 512) into the TCE table in one
+#if defined(CONFIG_SPARSEMEM_VMEMMAP) || defined(CONFIG_FLATMEM)
+int realmode_get_page(struct page *page)
+{
+ if (PageCompound(page))
+ return -EAGAIN;
+
+ get_page(page);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(realmode_get_page);
+
+int
On Sun, 2013-06-16 at 14:26 +1000, Benjamin Herrenschmidt wrote:
+int realmode_get_page(struct page *page)
+{
+ if (PageCompound(page))
+ return -EAGAIN;
+
+ get_page(page);
+
+ return 0;
+}
Shouldn't it be get_page_unless_zero ?
Cheers,
Ben.
--
To
static pte_t kvmppc_lookup_pte(pgd_t *pgdir, unsigned long hva, bool writing,
- unsigned long *pte_sizep)
+ unsigned long *pte_sizep, bool do_get_page)
{
pte_t *ptep;
unsigned int shift = 0;
@@ -135,6 +136,14 @@ static pte_t
On Wed, 2013-06-05 at 16:11 +1000, Alexey Kardashevskiy wrote:
@@ -185,7 +186,31 @@ static unsigned long kvmppc_realmode_gpa_to_hpa(struct
kvm_vcpu *vcpu,
unsigned long hva, hpa, pg_size = 0, offset;
unsigned long gfn = gpa PAGE_SHIFT;
bool writing = gpa TCE_PCI_WRITE;
