Displaying 20 results from an estimated 158 matches for "pteval".
2007 Apr 18
1
[PATCH 6/9] 00mm9 optimize ptep establish for pae.patch
...lly written PTE and getting a bad
mapping installed.
Signed-off-by: Zachary Amsden <zach@vmware.com>
===================================================================
--- a/include/asm-i386/pgtable-2level.h
+++ b/include/asm-i386/pgtable-2level.h
@@ -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_cle...
2020 Nov 03
0
[patch V3 24/37] sched: highmem: Store local kmaps in task struct
...lude <linux/kcsan.h>
+#include <asm/kmap_size.h>
/* task_struct member predeclarations (sorted alphabetically): */
struct audit_context;
@@ -629,6 +630,13 @@ struct wake_q_node {
struct wake_q_node *next;
};
+struct kmap_ctrl {
+#ifdef CONFIG_KMAP_LOCAL
+ int idx;
+ pte_t pteval[KM_TYPE_NR];
+#endif
+};
+
struct task_struct {
#ifdef CONFIG_THREAD_INFO_IN_TASK
/*
@@ -1294,6 +1302,7 @@ struct task_struct {
unsigned int sequential_io;
unsigned int sequential_io_avg;
#endif
+ struct kmap_ctrl kmap_ctrl;
#ifdef CONFIG_DEBUG_ATOMIC_SLEEP
unsigned long task_sta...
2007 Apr 18
0
[PATCH 7/9] 00mma remove set pte atomic.patch
...<zach@vmware.com>
===================================================================
--- a/include/asm-frv/pgtable.h
+++ b/include/asm-frv/pgtable.h
@@ -175,8 +175,6 @@ do { \
asm volatile("dcf %M0" :: "U"(*pteptr)); \
} while(0)
#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
-#define set_pte_atomic(pteptr, pteval) set_pte((pteptr), (pteval))
/*
* pgd_offset() returns a (pgd_t *)
===================================================================
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -13,19 +13,11 @@
*...
2020 Aug 15
0
[PATCH v4 5/6] x86/paravirt: remove set_pte_at pv-op
...irt_types.h b/arch/x86/include/asm/paravirt_types.h
index f27c3febaa6e..0fad9f61c76a 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -242,8 +242,6 @@ struct pv_mmu_ops {
/* 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);
pte_t (*ptep_modify_prot_start)(struct vm_area_struct *vma, unsigned long addr,
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pg...
2012 Feb 20
2
[PATCH] Disable PAT support when running under Xen (v1).
...until we have a
possible map and a non-dummy shared_info. */
per_cpu(xen_vcpu, 0) = &HYPERVISOR_shared_info->vcpu_info[0];
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 58a0e46..95c1cf6 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -415,13 +415,13 @@ static pteval_t iomap_pte(pteval_t val)
static pteval_t xen_pte_val(pte_t pte)
{
pteval_t pteval = pte.pte;
-
+#if 0
/* If this is a WC pte, convert back from Xen WC to Linux WC */
if ((pteval & (_PAGE_PAT | _PAGE_PCD | _PAGE_PWT)) == _PAGE_PAT) {
WARN_ON(!pat_enabled);
pteval = (pteval & ~...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
...@@
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-/*
- * Certain architectures need to do special things when PTEs
- * within 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_sam...
2007 Apr 18
1
[RFC, PATCH 19/24] i386 Vmi mmu changes
...@@
#define pgd_ERROR(e) \
printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-/*
- * Certain architectures need to do special things when PTEs
- * within 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_sam...
2020 Aug 15
6
[PATCH v4 0/6] x86/paravirt: cleanup after 32-bit PV removal
A lot of cleanup after removal of 32-bit Xen PV guest support in
paravirt code.
Changes in V4:
- dropped patches 1-3, as already committed
- addressed comments to V3
- added new patches 5+6
Changes in V3:
- addressed comments to V2
- split patch 1 into 2 patches
- new patches 3 and 7
Changes in V2:
- rebase to 5.8 kernel
- addressed comments to V1
- new patches 3 and 4
Juergen Gross (6):
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
2013 Jan 30
2
[PATCH] PVH: remove code to map iomem from guest
...include/xen/interface/physdev.h | 10 ----------
3 files changed, 4 insertions(+), 36 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index b4be4c9..fbf6a63 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -333,20 +333,6 @@ static void xen_set_pte(pte_t *ptep, pte_t pteval)
__xen_set_pte(ptep, pteval);
}
-void xen_set_clr_mmio_pvh_pte(unsigned long pfn, unsigned long mfn,
- int nr_mfns, int add_mapping)
-{
- struct physdev_map_iomem iomem;
-
- iomem.first_gfn = pfn;
- iomem.first_mfn = mfn;
- iomem.nr_mfns = nr_mfns;
- iomem.add_mapping = add_mapping;
-...
2007 Apr 19
3
[RFC, PATCH 1/5] Paravirt_ops full patching.patch
...avirt_ops.io_delay();
- paravirt_ops.io_delay();
+ PVOP_VCALL0(io_delay);
+ PVOP_VCALL0(io_delay);
+ PVOP_VCALL0(io_delay);
#endif
}
@@ -824,8 +838,7 @@ static inline void set_pte_at(struct mm_
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval)
{
- /* 5 arg words */
- paravirt_ops.set_pte_at(mm, addr, ptep, pteval);
+ PVOP_VCALL5(mm, addr, ptep, pteval.pte_low, pteval.pte_high);
}
static inline void set_pte_atomic(pte_t *ptep, pte_t pteval)
@@ -836,8 +849,7 @@ static inline void set_pte_present(struc
static inline void set_pte_pres...
2007 Apr 19
3
[RFC, PATCH 1/5] Paravirt_ops full patching.patch
...avirt_ops.io_delay();
- paravirt_ops.io_delay();
+ PVOP_VCALL0(io_delay);
+ PVOP_VCALL0(io_delay);
+ PVOP_VCALL0(io_delay);
#endif
}
@@ -824,8 +838,7 @@ static inline void set_pte_at(struct mm_
static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, pte_t pteval)
{
- /* 5 arg words */
- paravirt_ops.set_pte_at(mm, addr, ptep, pteval);
+ PVOP_VCALL5(mm, addr, ptep, pteval.pte_low, pteval.pte_high);
}
static inline void set_pte_atomic(pte_t *ptep, pte_t pteval)
@@ -836,8 +849,7 @@ static inline void set_pte_present(struc
static inline void set_pte_pres...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...ges */
- void (*alloc_pt)(struct mm_struct *mm, u32 pfn);
- void (*alloc_pd)(u32 pfn);
- void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, 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, p...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...ges */
- void (*alloc_pt)(struct mm_struct *mm, u32 pfn);
- void (*alloc_pd)(u32 pfn);
- void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, 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, p...
2020 Nov 03
0
[patch V3 06/37] highmem: Provide generic variant of kmap_atomic*
...tatic inline int kmap_local_idx(void)
+{
+ return __this_cpu_read(__kmap_local_idx) - 1;
+}
+
+static inline void kmap_local_idx_pop(void)
+{
+ int idx = __this_cpu_dec_return(__kmap_local_idx);
+
+ BUG_ON(idx < 0);
+}
+
+#ifndef arch_kmap_local_post_map
+# define arch_kmap_local_post_map(vaddr, pteval) do { } while (0)
+#endif
+#ifndef arch_kmap_local_pre_unmap
+# define arch_kmap_local_pre_unmap(vaddr) do { } while (0)
+#endif
+
+#ifndef arch_kmap_local_post_unmap
+# define arch_kmap_local_post_unmap(vaddr) do { } while (0)
+#endif
+
+#ifndef arch_kmap_local_map_idx
+#define arch_kmap_local_m...
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
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...@@ -191,15 +218,12 @@ struct paravirt_ops
void (*pte_update_defer)(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
-#ifdef CONFIG_HIGHPTE
- void *(*kmap_atomic_pte)(struct page *page, enum km_type type);
-#endif
-
#ifdef CONFIG_X86_PAE
void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
- void (*set_pte_present)(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte);
+ void (*set_pte_present)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte);
void (*set_pud)(pud_t *pudp, pud_t pudval);
- void (*pte_clear)(struct mm_struct *mm, unsigned long ad...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...@@ -191,15 +218,12 @@ struct paravirt_ops
void (*pte_update_defer)(struct mm_struct *mm,
unsigned long addr, pte_t *ptep);
-#ifdef CONFIG_HIGHPTE
- void *(*kmap_atomic_pte)(struct page *page, enum km_type type);
-#endif
-
#ifdef CONFIG_X86_PAE
void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
- void (*set_pte_present)(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pte);
+ void (*set_pte_present)(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte);
void (*set_pud)(pud_t *pudp, pud_t pudval);
- void (*pte_clear)(struct mm_struct *mm, unsigned long ad...