Displaying 20 results from an estimated 73 matches for "mem_map".
2005 Dec 07
5
[PATCH] Arch-neutral balloon driver
...2.6-xen-sparse/drivers/xen/balloon/balloon.c
--- a/linux-2.6-xen-sparse/drivers/xen/balloon/balloon.c Sun Dec
4 19:12:00 2005
+++ b/linux-2.6-xen-sparse/drivers/xen/balloon/balloon.c Tue Dec
6 16:25:53 2005
@@ -192,8 +192,8 @@
page = balloon_retrieve();
BUG_ON(page == NULL);
- pfn = page - mem_map;
- BUG_ON(phys_to_machine_mapping[pfn] !=
INVALID_P2M_ENTRY);
+ pfn = page_to_pfn(page);
+ BUG_ON(phys_to_machine_mapping_valid(pfn));
/* Update P->M and M->P tables. */
set_phys_to_machine(pfn, mfn_list[i]);
@@ -253,8 +253,8 @@
break;
}
- pfn = page - mem_map;
- mfn_lis...
2007 Apr 18
1
Where does vmi_apply_boot_page_allocations ever get called?
Because I need a hook for "do stuff after mem_map is valid" too.
J
2007 Apr 18
1
Where does vmi_apply_boot_page_allocations ever get called?
Because I need a hook for "do stuff after mem_map is valid" too.
J
2004 Sep 14
4
Memory oversubscription
Hi. First of all, thanks for Xen. It''s terrific!
I''m interested in doing memory oversubscription and am wondering if Xen
can do this (now or in the future).
For example, on a machine with 100MB available physical memory, can I:
1. Create a domain with a 90MB allocation
2. Inflate a balloon in that domain and return say 40MB back to Xen
I know there are mechanisms for doing
2005 Feb 19
0
[PATCH] check read/write return values
...PyLong_AsLong(f3);
lf4 = PyLong_AsLong(f4);
- sscanf(sf1, "%lx", &lf1);
- sscanf(sf2, "%lx", &lf2);
+ if (sscanf(sf1, "%lx", &lf1) != 1)
+ return NULL;
+ if (sscanf(sf2, "%lx", &lf2) != 1)
+ return NULL;
mem_map.map[i-1].addr = lf1;
mem_map.map[i-1].size = lf2 - lf1;
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2005 Apr 25
3
BUG: xend oopses on munmap of /proc/xen/privcmd
This is with last night''s Xen snapshot (apr 24th), on kernel
2.6.12-rc3 - but the mess is so horrid that I''m not quite sure
how to fix it...
This oops prevents xen from starting xenU domains.
Basically xend does the following:
1) mmap /proc/xen/privcmd
2) call an ioctl to populate the mmap
3) munmap the mapping created in (1)
During the munmap, the dom0 kernel oopses, as
2007 Apr 18
0
[patch 9/9] Guest page hinting: full s390 support.
...linux-2.6/include/asm-s390/page-states.h linux-2.6-patched/include/asm-s390/page-states.h
--- linux-2.6/include/asm-s390/page-states.h 2006-09-01 12:49:36.000000000 +0200
+++ linux-2.6-patched/include/asm-s390/page-states.h 2006-09-01 12:50:25.000000000 +0200
@@ -33,6 +33,22 @@ extern struct page *mem_map;
_rc; \
})
+static inline int page_host_discards(void)
+{
+ return MACHINE_HAS_ESSA;
+}
+
+static inline int page_discarded(struct page *page)
+{
+ int state;
+
+ if (!MACHINE_HAS_ESSA)
+ return 0;
+ state = page_essa(page, ESSA_GET_STATE);
+ return (state & ESSA_USTATE_MASK) == ESSA_USTA...
2007 Apr 18
0
[patch 9/9] Guest page hinting: full s390 support.
...linux-2.6/include/asm-s390/page-states.h linux-2.6-patched/include/asm-s390/page-states.h
--- linux-2.6/include/asm-s390/page-states.h 2006-09-01 12:49:36.000000000 +0200
+++ linux-2.6-patched/include/asm-s390/page-states.h 2006-09-01 12:50:25.000000000 +0200
@@ -33,6 +33,22 @@ extern struct page *mem_map;
_rc; \
})
+static inline int page_host_discards(void)
+{
+ return MACHINE_HAS_ESSA;
+}
+
+static inline int page_discarded(struct page *page)
+{
+ int state;
+
+ if (!MACHINE_HAS_ESSA)
+ return 0;
+ state = page_essa(page, ESSA_GET_STATE);
+ return (state & ESSA_USTATE_MASK) == ESSA_USTA...
2007 Apr 18
0
[patch 2/9] Guest page hinting: unused / free pages on s390.
...efine ESSA_USTATE_STABLE 0x00
+#define ESSA_USTATE_UNUSED 0x04
+#define ESSA_USTATE_PVOLATILE 0x08
+#define ESSA_USTATE_VOLATILE 0x0c
+
+#define ESSA_CSTATE_MASK 0x03
+#define ESSA_CSTATE_RESIDENT 0x00
+#define ESSA_CSTATE_PRESERVED 0x02
+#define ESSA_CSTATE_ZERO 0x03
+
+extern struct page *mem_map;
+
+/*
+ * ESSA <rc-reg>,<page-address-reg>,<command-immediate>
+ */
+#define page_essa(_page,_command) ({ \
+ int _rc; \
+ asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0" \
+ : "=&d" (_rc) : "a" (((_page)-mem_map)<<PAGE_SHIFT),...
2007 Apr 18
0
[patch 2/9] Guest page hinting: unused / free pages on s390.
...efine ESSA_USTATE_STABLE 0x00
+#define ESSA_USTATE_UNUSED 0x04
+#define ESSA_USTATE_PVOLATILE 0x08
+#define ESSA_USTATE_VOLATILE 0x0c
+
+#define ESSA_CSTATE_MASK 0x03
+#define ESSA_CSTATE_RESIDENT 0x00
+#define ESSA_CSTATE_PRESERVED 0x02
+#define ESSA_CSTATE_ZERO 0x03
+
+extern struct page *mem_map;
+
+/*
+ * ESSA <rc-reg>,<page-address-reg>,<command-immediate>
+ */
+#define page_essa(_page,_command) ({ \
+ int _rc; \
+ asm volatile(".insn rrf,0xb9ab0000,%0,%1,%2,0" \
+ : "=&d" (_rc) : "a" (((_page)-mem_map)<<PAGE_SHIFT),...
2007 Jul 06
2
[PATCH] I386: Deactivate the test for the dead CONFIG_DEBUG_PAGE_TYPE variable.
Robert P. J. Day wrote:
> Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
>
> ---
>
> diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c
Maintainers are apparently those under "PARAVIRT_OPS INTERFACE".
CCs added.
> index c12720d..e3ce5c8 100644
> --- a/arch/i386/kernel/vmi.c
> +++ b/arch/i386/kernel/vmi.c
> @@ -235,7 +235,7 @@ static
2007 Jul 06
2
[PATCH] I386: Deactivate the test for the dead CONFIG_DEBUG_PAGE_TYPE variable.
Robert P. J. Day wrote:
> Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
>
> ---
>
> diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c
Maintainers are apparently those under "PARAVIRT_OPS INTERFACE".
CCs added.
> index c12720d..e3ce5c8 100644
> --- a/arch/i386/kernel/vmi.c
> +++ b/arch/i386/kernel/vmi.c
> @@ -235,7 +235,7 @@ static
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...ned long)];
-#ifdef CONFIG_HIGHMEM
-#define inc_totalhigh_pages() (totalhigh_pages++)
-#define dec_totalhigh_pages() (totalhigh_pages--)
-#else
-#define inc_totalhigh_pages() do {} while (0)
-#define dec_totalhigh_pages() do {} while (0)
-#endif
-
/* List of ballooned pages, threaded through the mem_map array. */
static LIST_HEAD(ballooned_pages);
@@ -132,9 +124,7 @@ static void __balloon_append(struct page *page)
static void balloon_append(struct page *page)
{
__balloon_append(page);
- if (PageHighMem(page))
- dec_totalhigh_pages();
- totalram_pages--;
+ adjust_managed_page_count(page, -1...
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...ned long)];
-#ifdef CONFIG_HIGHMEM
-#define inc_totalhigh_pages() (totalhigh_pages++)
-#define dec_totalhigh_pages() (totalhigh_pages--)
-#else
-#define inc_totalhigh_pages() do {} while (0)
-#define dec_totalhigh_pages() do {} while (0)
-#endif
-
/* List of ballooned pages, threaded through the mem_map array. */
static LIST_HEAD(ballooned_pages);
@@ -132,9 +124,7 @@ static void __balloon_append(struct page *page)
static void balloon_append(struct page *page)
{
__balloon_append(page);
- if (PageHighMem(page))
- dec_totalhigh_pages();
- totalram_pages--;
+ adjust_managed_page_count(page, -1...
2013 May 26
6
[PATCH v8, part3 12/14] mm: correctly update zone->mamaged_pages
...ned long)];
-#ifdef CONFIG_HIGHMEM
-#define inc_totalhigh_pages() (totalhigh_pages++)
-#define dec_totalhigh_pages() (totalhigh_pages--)
-#else
-#define inc_totalhigh_pages() do {} while (0)
-#define dec_totalhigh_pages() do {} while (0)
-#endif
-
/* List of ballooned pages, threaded through the mem_map array. */
static LIST_HEAD(ballooned_pages);
@@ -132,9 +124,7 @@ static void __balloon_append(struct page *page)
static void balloon_append(struct page *page)
{
__balloon_append(page);
- if (PageHighMem(page))
- dec_totalhigh_pages();
- totalram_pages--;
+ adjust_managed_page_count(page, -1...
2009 Aug 24
1
[PATCH 1/8] blkio-cgroup-v11: Introduction
Hi all,
This is a new release of blkio-cgroup v11.
Changes:
- The function cgroup_get_from_page() is added which determines to
which cgroup a given page belongs. This function is introduced from
Vivek's io-controller patch. Thanks Vivek.
- Fix a type mismatch of the refcount of io_context. The refcount has
been changed to atomic_long_t.
This patch can be applied to 2.6.31-rc7.
The
2009 Aug 24
1
[PATCH 1/8] blkio-cgroup-v11: Introduction
Hi all,
This is a new release of blkio-cgroup v11.
Changes:
- The function cgroup_get_from_page() is added which determines to
which cgroup a given page belongs. This function is introduced from
Vivek's io-controller patch. Thanks Vivek.
- Fix a type mismatch of the refcount of io_context. The refcount has
been changed to atomic_long_t.
This patch can be applied to 2.6.31-rc7.
The
2009 Aug 24
1
[PATCH 1/8] blkio-cgroup-v11: Introduction
Hi all,
This is a new release of blkio-cgroup v11.
Changes:
- The function cgroup_get_from_page() is added which determines to
which cgroup a given page belongs. This function is introduced from
Vivek's io-controller patch. Thanks Vivek.
- Fix a type mismatch of the refcount of io_context. The refcount has
been changed to atomic_long_t.
This patch can be applied to 2.6.31-rc7.
The
2013 May 11
0
[PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages
...ned long)];
-#ifdef CONFIG_HIGHMEM
-#define inc_totalhigh_pages() (totalhigh_pages++)
-#define dec_totalhigh_pages() (totalhigh_pages--)
-#else
-#define inc_totalhigh_pages() do {} while (0)
-#define dec_totalhigh_pages() do {} while (0)
-#endif
-
/* List of ballooned pages, threaded through the mem_map array. */
static LIST_HEAD(ballooned_pages);
@@ -132,9 +124,7 @@ static void __balloon_append(struct page *page)
static void balloon_append(struct page *page)
{
__balloon_append(page);
- if (PageHighMem(page))
- dec_totalhigh_pages();
- totalram_pages--;
+ adjust_managed_page_count(page, -1...
2013 May 11
0
[PATCH v6, part3 13/16] mm: correctly update zone->mamaged_pages
...ned long)];
-#ifdef CONFIG_HIGHMEM
-#define inc_totalhigh_pages() (totalhigh_pages++)
-#define dec_totalhigh_pages() (totalhigh_pages--)
-#else
-#define inc_totalhigh_pages() do {} while (0)
-#define dec_totalhigh_pages() do {} while (0)
-#endif
-
/* List of ballooned pages, threaded through the mem_map array. */
static LIST_HEAD(ballooned_pages);
@@ -132,9 +124,7 @@ static void __balloon_append(struct page *page)
static void balloon_append(struct page *page)
{
__balloon_append(page);
- if (PageHighMem(page))
- dec_totalhigh_pages();
- totalram_pages--;
+ adjust_managed_page_count(page, -1...