Displaying 5 results from an estimated 5 matches for "_page_changed".
2007 Apr 18
0
[patch 9/9] Guest page hinting: full s390 support.
...*/
-#define page_test_and_clear_dirty(_page) \
+#define page_test_dirty(_page) \
({ \
struct page *__page = (_page); \
unsigned long __physpage = __pa((__page-mem_map) << PAGE_SHIFT); \
- int __skey = page_get_storage_key(__physpage); \
- if (__skey & _PAGE_CHANGED) \
- page_set_storage_key(__physpage, __skey & ~_PAGE_CHANGED);\
- (__skey & _PAGE_CHANGED); \
+ (page_get_storage_key(__physpage) & _PAGE_CHANGED); \
+})
+
+#define page_clear_dirty(_page) \
+({ \
+ struct page *__page = (_page); \
+ unsigned long...
2007 Apr 18
0
[patch 9/9] Guest page hinting: full s390 support.
...*/
-#define page_test_and_clear_dirty(_page) \
+#define page_test_dirty(_page) \
({ \
struct page *__page = (_page); \
unsigned long __physpage = __pa((__page-mem_map) << PAGE_SHIFT); \
- int __skey = page_get_storage_key(__physpage); \
- if (__skey & _PAGE_CHANGED) \
- page_set_storage_key(__physpage, __skey & ~_PAGE_CHANGED);\
- (__skey & _PAGE_CHANGED); \
+ (page_get_storage_key(__physpage) & _PAGE_CHANGED); \
+})
+
+#define page_clear_dirty(_page) \
+({ \
+ struct page *__page = (_page); \
+ unsigned long...
2008 Mar 20
0
[RFC/PATCH 02/15] preparation: host memory management changes for s390 kvm
...line void page_clear_dirty(struct page *page);
+#include <linux/page-flags.h>
+
+static inline void ptep_rcp_copy(pte_t *ptep)
+{
+#ifdef CONFIG_PGSTE
+ struct page *page = virt_to_page(pte_val(*ptep));
+ unsigned int skey;
+
+ skey = page_get_storage_key(page_to_phys(page));
+ if (skey & _PAGE_CHANGED)
+ rcp_set_bits(ptep, _PAGE_RCP_GC);
+ if (skey & _PAGE_REFERENCED)
+ rcp_set_bits(ptep, _PAGE_RCP_GR);
+ if (rcp_test_and_clear_bits(ptep, _PAGE_RCP_HC))
+ SetPageDirty(page);
+ if (rcp_test_and_clear_bits(ptep, _PAGE_RCP_HR))
+ SetPageReferenced(page);
+#endif
+}
+
/*
* query functions...
2008 Mar 20
34
[RFC/PATCH 00/15] kvm on big iron
This patch series introduces a backend for kvm to run on IBM System z
machines that uses the mainframe's sie virtualization capability. This
work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with
a 64bit linux host. Userspace will follow once we're done brushing it
over.
The patch queue consists of the following patches, which can be applied
in sequence on top of kvm.git
2008 Mar 20
34
[RFC/PATCH 00/15] kvm on big iron
This patch series introduces a backend for kvm to run on IBM System z
machines that uses the mainframe's sie virtualization capability. This
work runs 64bit guests on z800/z890/z900/z990/z9/z10 class machines with
a 64bit linux host. Userspace will follow once we're done brushing it
over.
The patch queue consists of the following patches, which can be applied
in sequence on top of kvm.git