Displaying 20 results from an estimated 66 matches for "__pgprot".
2008 May 23
0
[PATCH] x86/paravirt: add pte_flags to just get pte flags
...te)
{
- return pte_val(pte) & _PAGE_GLOBAL;
+ return pte_flags(pte) & _PAGE_GLOBAL;
}
static inline int pte_exec(pte_t pte)
{
- return !(pte_val(pte) & _PAGE_NX);
+ return !(pte_flags(pte) & _PAGE_NX);
}
static inline int pte_special(pte_t pte)
@@ -304,7 +304,7 @@
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK)
#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
2008 May 23
0
[PATCH] x86/paravirt: add pte_flags to just get pte flags
...te)
{
- return pte_val(pte) & _PAGE_GLOBAL;
+ return pte_flags(pte) & _PAGE_GLOBAL;
}
static inline int pte_exec(pte_t pte)
{
- return !(pte_val(pte) & _PAGE_NX);
+ return !(pte_flags(pte) & _PAGE_NX);
}
static inline int pte_special(pte_t pte)
@@ -304,7 +304,7 @@
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_val(x) & ~PTE_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x) & ~PTE_MASK)
#define canon_pgprot(p) __pgprot(pgprot_val(p) & __supported_pte_mask)
2009 Sep 21
1
[PATCH 2/5] lguest: use set_pte/set_pmd uniformly for real page table entries
...; PTRS_PER_PMD;
i += PTRS_PER_PTE, j++) {
- /* FIXME: native_set_pmd is overkill here. */
- native_set_pmd(&pmd, __pmd(((unsigned long)(linear + i)
- - mem_base) | _PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
+ pmd = pfn_pmd(((unsigned long)&linear[i] - mem_base)/PAGE_SIZE,
+ __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
if (copy_to_user(&pmds[j], &pmd, sizeof(pmd)) != 0)
return -EFAULT;
}
/* One PGD entry, pointing to that PMD page. */
- set_pgd(&pgd, __pgd(((u32)pmds - mem_base) | _PAGE_PRESENT));
+ pgd = __pgd(((unsigned long)pmds - mem_base) |...
2009 Sep 21
1
[PATCH 2/5] lguest: use set_pte/set_pmd uniformly for real page table entries
...; PTRS_PER_PMD;
i += PTRS_PER_PTE, j++) {
- /* FIXME: native_set_pmd is overkill here. */
- native_set_pmd(&pmd, __pmd(((unsigned long)(linear + i)
- - mem_base) | _PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
+ pmd = pfn_pmd(((unsigned long)&linear[i] - mem_base)/PAGE_SIZE,
+ __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
if (copy_to_user(&pmds[j], &pmd, sizeof(pmd)) != 0)
return -EFAULT;
}
/* One PGD entry, pointing to that PMD page. */
- set_pgd(&pgd, __pgd(((u32)pmds - mem_base) | _PAGE_PRESENT));
+ pgd = __pgd(((unsigned long)pmds - mem_base) |...
2009 Feb 06
2
Xen pv_ops domU :: BUG() in remove_from_page_cache()
Hi,
2.6.29-rc3 x86_64 guest on x86_64 RHEL5.3 host:
https://bugzilla.redhat.com/484295
kernel BUG at mm/filemap.c:123!
invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC
last sysfs file: /sys/devices/vbd-51712/block/xvda/xvda2/dev
CPU 0
Modules linked in: ipv6 xts lrw gf128mul sha256_generic cbc dm_crypt
2009 Apr 16
1
NULL pointer dereference at __switch_to() ( __unlazy_fpu ) with lguest PAE patch
...struct lguest_pages *pages)
{
pte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages);
- pgd_t switcher_pgd;
pte_t regs_pte;
unsigned long pfn;
+#ifdef CONFIG_X86_PAE
+ pmd_t switcher_pmd;
+ pmd_t *pmd_table;
+
+ switcher_pmd = pfn_pmd(__pa(switcher_pte_page) >>
+ PAGE_SHIFT, __pgprot(__PAGE_KERNEL));
+ pmd_table = __va(pgd_pfn(cpu->lg->
+ pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX])
+ << PAGE_SHIFT);
+ pmd_table[SWITCHER_PMD_INDEX] = switcher_pmd;
+
+#else
+ pgd_t switcher_pgd;
+
/* Make the last PGD entry for this Guest point to the Switcher's...
2009 Apr 16
1
NULL pointer dereference at __switch_to() ( __unlazy_fpu ) with lguest PAE patch
...struct lguest_pages *pages)
{
pte_t *switcher_pte_page = __get_cpu_var(switcher_pte_pages);
- pgd_t switcher_pgd;
pte_t regs_pte;
unsigned long pfn;
+#ifdef CONFIG_X86_PAE
+ pmd_t switcher_pmd;
+ pmd_t *pmd_table;
+
+ switcher_pmd = pfn_pmd(__pa(switcher_pte_page) >>
+ PAGE_SHIFT, __pgprot(__PAGE_KERNEL));
+ pmd_table = __va(pgd_pfn(cpu->lg->
+ pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX])
+ << PAGE_SHIFT);
+ pmd_table[SWITCHER_PMD_INDEX] = switcher_pmd;
+
+#else
+ pgd_t switcher_pgd;
+
/* Make the last PGD entry for this Guest point to the Switcher's...
2011 Feb 11
1
[PATCH 1/3]: Staging: hv: Use native page allocation/free functions
...,7 +230,12 @@ int hv_init(void)
* Allocate the hypercall page memory
* virtaddr = osd_page_alloc(1);
*/
- virtaddr = osd_virtual_alloc_exec(PAGE_SIZE);
+#ifdef __x86_64__
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
+#else
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL,
+ __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
+#endif
if (!virtaddr) {
DPRINT_ERR(VMBUS,
@@ -462,10 +467,10 @@ void hv_synic_init(void *irqarg)
Cleanup:
if (hv_context.synic_event_page[cpu])
- osd_page_free(hv_context.synic_event_page[cpu], 1);
+ free_page((unsigned long)hv_context.synic_event_p...
2011 Feb 11
1
[PATCH 1/3]: Staging: hv: Use native page allocation/free functions
...,7 +230,12 @@ int hv_init(void)
* Allocate the hypercall page memory
* virtaddr = osd_page_alloc(1);
*/
- virtaddr = osd_virtual_alloc_exec(PAGE_SIZE);
+#ifdef __x86_64__
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
+#else
+ virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL,
+ __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
+#endif
if (!virtaddr) {
DPRINT_ERR(VMBUS,
@@ -462,10 +467,10 @@ void hv_synic_init(void *irqarg)
Cleanup:
if (hv_context.synic_event_page[cpu])
- osd_page_free(hv_context.synic_event_page[cpu], 1);
+ free_page((unsigned long)hv_context.synic_event_p...
2008 Sep 26
6
Mapping hvm guest pages in Dom0
hello,
I would like to map (Read/Write) pages owned by a HVM guest from my Dom0
Linux kernel module. I have access to the "machine frame numbers" of these
pages.
1. What is the right interface to do this? kmap needs ''struct page'' ptrs
which I doubt exist for pages owned by a HVM guest. Is there a hypercall to
do this then?
2. Do I need to modify the HVM behavior in
2011 Feb 11
1
[PATCH]: Staging: hv: Cleanup vmalloc calls
...ng/hv/hv.c
+++ b/drivers/staging/hv/hv.c
@@ -230,12 +230,7 @@ int hv_init(void)
* Allocate the hypercall page memory
* virtaddr = osd_page_alloc(1);
*/
-#ifdef __x86_64__
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
-#else
- virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL,
- __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
-#endif
if (!virtaddr) {
DPRINT_ERR(VMBUS,
--
1.5.5.6
2011 Feb 11
1
[PATCH]: Staging: hv: Cleanup vmalloc calls
...ng/hv/hv.c
+++ b/drivers/staging/hv/hv.c
@@ -230,12 +230,7 @@ int hv_init(void)
* Allocate the hypercall page memory
* virtaddr = osd_page_alloc(1);
*/
-#ifdef __x86_64__
virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL, PAGE_KERNEL_EXEC);
-#else
- virtaddr = __vmalloc(PAGE_SIZE, GFP_KERNEL,
- __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
-#endif
if (!virtaddr) {
DPRINT_ERR(VMBUS,
--
1.5.5.6
2007 Oct 31
5
[PATCH 0/7] (Re-)introducing pvops for x86_64 - Real pvops work part
Hey folks,
This is the part-of-pvops-implementation-that-is-not-exactly-a-merge. Neat,
uh? This is the majority of the work.
The first patch in the series does not really belong here. It was already
sent to lkml separetedly before, but I'm including it again, for a very
simple reason: Try to test the paravirt patches without it, and you'll fail
miserably ;-) (and it was not yet
2007 Oct 31
5
[PATCH 0/7] (Re-)introducing pvops for x86_64 - Real pvops work part
Hey folks,
This is the part-of-pvops-implementation-that-is-not-exactly-a-merge. Neat,
uh? This is the majority of the work.
The first patch in the series does not really belong here. It was already
sent to lkml separetedly before, but I'm including it again, for a very
simple reason: Try to test the paravirt patches without it, and you'll fail
miserably ;-) (and it was not yet
2007 Nov 09
11
[PATCH 0/24] paravirt_ops for unified x86 - that's me again!
Hey folks,
Here's a new spin of the pvops64 patch series.
We didn't get that many comments from the last time,
so it should be probably almost ready to get in. Heya!
>From the last version, the most notable changes are:
* consolidation of system.h, merging jeremy's comments about ordering
concerns
* consolidation of smp functions that goes through smp_ops. They're sharing
2007 Nov 09
11
[PATCH 0/24] paravirt_ops for unified x86 - that's me again!
Hey folks,
Here's a new spin of the pvops64 patch series.
We didn't get that many comments from the last time,
so it should be probably almost ready to get in. Heya!
>From the last version, the most notable changes are:
* consolidation of system.h, merging jeremy's comments about ordering
concerns
* consolidation of smp functions that goes through smp_ops. They're sharing
2020 Nov 03
0
[patch V3 15/37] powerpc/mm/highmem: Switch to generic kmap atomic
...t_mem_is_free;
-#ifdef CONFIG_HIGHMEM
-pte_t *kmap_pte;
-EXPORT_SYMBOL(kmap_pte);
-#endif
-
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{
@@ -235,8 +230,6 @@ void __init paging_init(void)
map_kernel_page(PKMAP_BASE, 0, __pgprot(0)); /* XXX gross */
pkmap_page_table = virt_to_kpte(PKMAP_BASE);
-
- kmap_pte = virt_to_kpte(__fix_to_virt(FIX_KMAP_BEGIN));
#endif /* CONFIG_HIGHMEM */
printk(KERN_DEBUG "Top of RAM: 0x%llx, Total RAM: 0x%llx\n",
2020 Mar 20
0
[PATCH 2/2] mm/thp: Rename pmd_mknotpresent() as pmd_mknotvalid()
...6/include/asm/pgtable.h
@@ -589,7 +589,7 @@ static inline pud_t pfn_pud(unsigned long page_nr, pgprot_t pgprot)
return __pud(pfn | check_pgprot(pgprot));
}
-static inline pmd_t pmd_mknotpresent(pmd_t pmd)
+static inline pmd_t pmd_mknotvalid(pmd_t pmd)
{
return pfn_pmd(pmd_pfn(pmd),
__pgprot(pmd_flags(pmd) & ~(_PAGE_PRESENT|_PAGE_PROTNONE)));
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index 49d7814b59a9..f9f61b934475 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -130,7 +130,7 @@ static void clear_pmd_presence(pmd_t *pmd, bool clear, pmdval_t *old)
pmdv...
2007 Aug 10
9
[PATCH 0/25 -v2] paravirt_ops for x86_64, second round
Here is an slightly updated version of the paravirt_ops patch.
If your comments and criticism were welcome before, now it's even more!
There are some issues that are _not_ addressed in this revision, and here
are the causes:
* split debugreg into multiple functions, suggested by Andi:
- Me and jsfg agree that introducing more pvops (specially 14!) is
not worthwhile. So, although we do
2007 Aug 10
9
[PATCH 0/25 -v2] paravirt_ops for x86_64, second round
Here is an slightly updated version of the paravirt_ops patch.
If your comments and criticism were welcome before, now it's even more!
There are some issues that are _not_ addressed in this revision, and here
are the causes:
* split debugreg into multiple functions, suggested by Andi:
- Me and jsfg agree that introducing more pvops (specially 14!) is
not worthwhile. So, although we do