Displaying 20 results from an estimated 100 matches for "pmdval".
2007 Apr 18
1
[PATCH 6/9] 00mm9 optimize ptep establish for pae.patch
...@@ -16,6 +16,7 @@
#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
#define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval)
+#define set_pte_present(mm,addr,ptep,pteval) set_pte_at(mm,addr,ptep,pteval)
#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
#define pte_clear(mm,addr,xp) do { set_pte_at(mm, addr, xp, __pte(0)); } while (0)
===================================================================
--- a/include/asm-i386/pgtable-3level.h
+++ b/include/asm-i386/pgtable-3level.h
@@ -57,6 +57,21 @@ static inline void set...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
...ithin a page table are directly modified. Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-#define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval)
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
-
-#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte_low, 0))
#define pte_same(a, b) ((a).pte_low == (b).pte_low)
#define pte_page(x) pfn_to_page(pte_pfn(x))
#define pte_none(x) (!(x).pte_low)
@@ -61,4 +50,17 @@ static inline int pte_exec_kernel(pte_t...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
...ithin a page table are directly modified. Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-#define set_pte_atomic(pteptr, pteval) set_pte(pteptr,pteval)
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = (pmdval))
-
-#define ptep_get_and_clear(mm,addr,xp) __pte(xchg(&(xp)->pte_low, 0))
#define pte_same(a, b) ((a).pte_low == (b).pte_low)
#define pte_page(x) pfn_to_page(pte_pfn(x))
#define pte_none(x) (!(x).pte_low)
@@ -61,4 +50,17 @@ static inline int pte_exec_kernel(pte_t...
2008 May 31
1
[PATCH] xen: avoid hypercalls when updating unpinned pud/pmd
...ntry
+ directly */
+ if (!page_pinned(ptr)) {
+ *ptr = val;
+ return;
+ }
+
+ xen_set_pud_hyper(ptr, val);
}
void xen_set_pte(pte_t *ptep, pte_t pte)
@@ -418,7 +449,7 @@
void xen_pmd_clear(pmd_t *pmdp)
{
- xen_set_pmd(pmdp, __pmd(0));
+ set_pmd(pmdp, __pmd(0));
}
pmd_t xen_make_pmd(pmdval_t pmd)
@@ -789,7 +820,7 @@
spin_lock(&mm->page_table_lock);
/* pgd may not be pinned in the error exit path of execve */
- if (PagePinned(virt_to_page(mm->pgd)))
+ if (page_pinned(mm->pgd))
xen_pgd_unpin(mm->pgd);
spin_unlock(&mm->page_table_lock);
==============...
2009 Jun 05
1
[PATCH] lguest: PAE support
...tic void lguest_set_pud(pud_t *pudp, pud_t pudval)
+{
+ native_set_pud(pudp, pudval);
+
+ /* 32 bytes aligned pdpt address and the index. */
+ lazy_hcall2(LHCALL_SET_PGD, __pa(pudp) & 0xFFFFFFE0,
+ (__pa(pudp) & 0x1F) / sizeof(pud_t));
+}
+
static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
- *pmdp = pmdval;
+ native_set_pmd(pmdp, pmdval);
+ lazy_hcall2(LHCALL_SET_PMD, __pa(pmdp) & PAGE_MASK,
+ (__pa(pmdp) & (PAGE_SIZE - 1)) / sizeof(pmd_t));
+}
+#else
+
+/* The Guest calls lguest_set_pmd to set a top-level entry when PAE is not
+ * activated. */
+static void lguest_se...
2009 Jun 05
1
[PATCH] lguest: PAE support
...tic void lguest_set_pud(pud_t *pudp, pud_t pudval)
+{
+ native_set_pud(pudp, pudval);
+
+ /* 32 bytes aligned pdpt address and the index. */
+ lazy_hcall2(LHCALL_SET_PGD, __pa(pudp) & 0xFFFFFFE0,
+ (__pa(pudp) & 0x1F) / sizeof(pud_t));
+}
+
static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
- *pmdp = pmdval;
+ native_set_pmd(pmdp, pmdval);
+ lazy_hcall2(LHCALL_SET_PMD, __pa(pmdp) & PAGE_MASK,
+ (__pa(pmdp) & (PAGE_SIZE - 1)) / sizeof(pmd_t));
+}
+#else
+
+/* The Guest calls lguest_set_pmd to set a top-level entry when PAE is not
+ * activated. */
+static void lguest_se...
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
2007 Apr 18
3
[PATCH] abstract out bits of ldt.c
Chris Wright wrote:
>* Zachary Amsden (zach@vmware.com) wrote:
>
>
>>Does Xen assume page aligned descriptor tables? I assume from this
>>
>>
>
>Yes.
>
>
>
>>patch and snippets I have gathered from others, that is a yes, and other
>>things here imply that DT pages are not shadowed. If so, Xen itself
>>must have live segments
2007 Apr 18
3
[PATCH] abstract out bits of ldt.c
Chris Wright wrote:
>* Zachary Amsden (zach@vmware.com) wrote:
>
>
>>Does Xen assume page aligned descriptor tables? I assume from this
>>
>>
>
>Yes.
>
>
>
>>patch and snippets I have gathered from others, that is a yes, and other
>>things here imply that DT pages are not shadowed. If so, Xen itself
>>must have live segments
2007 Apr 18
2
[PATCH 1/4] Pte drop ptep_get_and_clear paravirt op.patch
...- return (pte_t) { val, val >> 32 };
-}
#else /* !CONFIG_X86_PAE */
+
static inline pte_t __pte(unsigned long val)
{
return (pte_t) { PVOP_CALL1(unsigned long, make_pte, val) };
@@ -899,11 +893,6 @@ static inline void set_pmd(pmd_t *pmdp,
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
PVOP_VCALL2(set_pmd, pmdp, pmdval.pud.pgd.pgd);
-}
-
-static inline pte_t raw_ptep_get_and_clear(pte_t *p)
-{
- return (pte_t) { PVOP_CALL1(unsigned long, ptep_get_and_clear, p) };
}
#endif /* CONFIG_X86_PAE */
diff -r c02c6f5e882c include/asm-i386/pgtable.h
--- a/include/asm-i386/pgtable...
2007 Apr 18
2
[PATCH 1/4] Pte drop ptep_get_and_clear paravirt op.patch
...- return (pte_t) { val, val >> 32 };
-}
#else /* !CONFIG_X86_PAE */
+
static inline pte_t __pte(unsigned long val)
{
return (pte_t) { PVOP_CALL1(unsigned long, make_pte, val) };
@@ -899,11 +893,6 @@ static inline void set_pmd(pmd_t *pmdp,
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
PVOP_VCALL2(set_pmd, pmdp, pmdval.pud.pgd.pgd);
-}
-
-static inline pte_t raw_ptep_get_and_clear(pte_t *p)
-{
- return (pte_t) { PVOP_CALL1(unsigned long, ptep_get_and_clear, p) };
}
#endif /* CONFIG_X86_PAE */
diff -r c02c6f5e882c include/asm-i386/pgtable.h
--- a/include/asm-i386/pgtable...
2007 Apr 18
8
[PATCH 0/7] x86 paravirtualization infrastructure
The following patches introduce the core infrastructure needed to
paravirtualize the 32-bit x86 Linux kernel. This is done by moving
virtualization sensitive insn's or code paths to a function table,
paravirt_ops. This structure can be populated with hypervisor specific
calls or native stubs and currently support running on bare metal, VMI,
Xen, or Lhype. These patches apply to
2007 Apr 18
8
[PATCH 0/7] x86 paravirtualization infrastructure
The following patches introduce the core infrastructure needed to
paravirtualize the 32-bit x86 Linux kernel. This is done by moving
virtualization sensitive insn's or code paths to a function table,
paravirt_ops. This structure can be populated with hypervisor specific
calls or native stubs and currently support running on bare metal, VMI,
Xen, or Lhype. These patches apply to
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
..., u32 count);
- void (*release_pt)(u32 pfn);
- void (*release_pd)(u32 pfn);
-
- /* Pagetable manipulation functions */
- void (*set_pte)(pte_t *ptep, pte_t pteval);
- void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval);
- void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- void (*pte_update)(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
- void (*pte_update_defer)(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep);
+ } pv_apic_ops;
+
+ struct pv_mmu_ops {
+ unsigned long (*read_cr2)(void);
+ void (*write_cr2)(unsigned long);
+
+ unsigned lon...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
..., u32 count);
- void (*release_pt)(u32 pfn);
- void (*release_pd)(u32 pfn);
-
- /* Pagetable manipulation functions */
- void (*set_pte)(pte_t *ptep, pte_t pteval);
- void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval);
- void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- void (*pte_update)(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
- void (*pte_update_defer)(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep);
+ } pv_apic_ops;
+
+ struct pv_mmu_ops {
+ unsigned long (*read_cr2)(void);
+ void (*write_cr2)(unsigned long);
+
+ unsigned lon...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...igh);
}
static inline void set_pte_present(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
/* 5 arg words */
- paravirt_ops.set_pte_present(mm, addr, ptep, pte);
+ pv_mmu_ops.set_pte_present(mm, addr, ptep, pte);
}
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
- PVOP_VCALL3(set_pmd, pmdp, pmdval.pmd, pmdval.pmd >> 32);
+ PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp,
+ pmdval.pmd, pmdval.pmd >> 32);
}
static inline void set_pud(pud_t *pudp, pud_t pudval)
{
- PVOP_VCALL3(set_pud, pudp, pudval.pgd.pgd, pudval.pgd.pgd >> 32);
+ PVOP_V...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...igh);
}
static inline void set_pte_present(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pte)
{
/* 5 arg words */
- paravirt_ops.set_pte_present(mm, addr, ptep, pte);
+ pv_mmu_ops.set_pte_present(mm, addr, ptep, pte);
}
static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval)
{
- PVOP_VCALL3(set_pmd, pmdp, pmdval.pmd, pmdval.pmd >> 32);
+ PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp,
+ pmdval.pmd, pmdval.pmd >> 32);
}
static inline void set_pud(pud_t *pudp, pud_t pudval)
{
- PVOP_VCALL3(set_pud, pudp, pudval.pgd.pgd, pudval.pgd.pgd >> 32);
+ PVOP_V...
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack
2007 Apr 18
17
[patch 00/17] paravirt_ops updates
Hi Andi,
This series of patches updates paravirt_ops in various ways. Some of the
changes are plain cleanups and improvements, and some add some interfaces
necessary for Xen.
The brief overview:
add-MAINTAINERS.patch - obvious
remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed
paravirt-nop.patch - mark nop operations consistently
paravirt-pte-accessors.patch - operations to pack/unpack