Displaying 20 results from an estimated 74 matches for "make_pt".
Did you mean:
make_pte
2020 Aug 09
2
[PATCH v3 4/7] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
On 8/7/20 4:38 AM, Juergen Gross wrote:
> @@ -377,10 +373,7 @@ static inline pte_t __pte(pteval_t val)
> {
> pteval_t ret;
>
> - if (sizeof(pteval_t) > sizeof(long))
> - ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >> 32);
> - else
> - ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
> + ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>
> return (pte_t) { .pte = ret };
Can this now simply return (pte_t) ret?
-boris
2020 Aug 09
2
[PATCH v3 4/7] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
On 8/7/20 4:38 AM, Juergen Gross wrote:
> @@ -377,10 +373,7 @@ static inline pte_t __pte(pteval_t val)
> {
> pteval_t ret;
>
> - if (sizeof(pteval_t) > sizeof(long))
> - ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >> 32);
> - else
> - ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
> + ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>
> return (pte_t) { .pte = ret };
Can this now simply return (pte_t) ret?
-boris
2020 Aug 10
1
[PATCH v3 4/7] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
...vsky wrote:
>> On 8/7/20 4:38 AM, Juergen Gross wrote:
>>> @@ -377,10 +373,7 @@ static inline pte_t __pte(pteval_t val)
>>> ? {
>>> ????? pteval_t ret;
>>> ? -??? if (sizeof(pteval_t) > sizeof(long))
>>> -??????? ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >>
>>> 32);
>>> -??? else
>>> -??????? ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>>> +??? ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>>> ? ????? return (pte_t) { .pte = ret };
>>
>>
>> Can this now sim...
2020 Aug 10
0
[PATCH v3 4/7] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
...9.08.20 04:34, Boris Ostrovsky wrote:
> On 8/7/20 4:38 AM, Juergen Gross wrote:
>> @@ -377,10 +373,7 @@ static inline pte_t __pte(pteval_t val)
>> {
>> pteval_t ret;
>>
>> - if (sizeof(pteval_t) > sizeof(long))
>> - ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >> 32);
>> - else
>> - ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>> + ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
>>
>> return (pte_t) { .pte = ret };
>
>
> Can this now simply return (pte_t) ret?
I don't think s...
2008 May 23
0
[PATCH] x86/paravirt: add pte_flags to just get pte flags
...etions(-)
===================================================================
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -406,6 +406,7 @@
#endif /* PAGETABLE_LEVELS >= 3 */
.pte_val = native_pte_val,
+ .pte_flags = native_pte_val,
.pgd_val = native_pgd_val,
.make_pte = native_make_pte,
===================================================================
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1102,6 +1102,7 @@
.set_pmd = xen_set_pmd,
.pte_val = xen_pte_val,
+ .pte_flags = native_pte_val,
.pgd_val = xen_pgd_val,
.make_pte =...
2008 May 23
0
[PATCH] x86/paravirt: add pte_flags to just get pte flags
...etions(-)
===================================================================
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -406,6 +406,7 @@
#endif /* PAGETABLE_LEVELS >= 3 */
.pte_val = native_pte_val,
+ .pte_flags = native_pte_val,
.pgd_val = native_pgd_val,
.make_pte = native_make_pte,
===================================================================
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1102,6 +1102,7 @@
.set_pmd = xen_set_pmd,
.pte_val = xen_pte_val,
+ .pte_flags = native_pte_val,
.pgd_val = xen_pgd_val,
.make_pte =...
2020 Aug 07
4
[PATCH v3 0/7] Remove 32-bit Xen PV guest support
The long term plan has been to replace Xen PV guests by PVH. The first
victim of that plan are now 32-bit PV guests, as those are used only
rather seldom these days. Xen on x86 requires 64-bit support and with
Grub2 now supporting PVH officially since version 2.04 there is no
need to keep 32-bit PV guest support alive in the Linux kernel.
Additionally Meltdown mitigation is not available in the
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(insns, len, start, end);
break;
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
+ case PARAVIRT_PATCH(pv_mmu_ops.make_pgd):
+ case PARAVIRT_PATCH(pv_mmu_ops.make_pte):
+ case PARAVIRT_PATCH(pv_mmu_ops.pgd_val):
+ case PARAVIRT_PATCH(pv_mmu_ops.pte_val):
#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
-...
2007 Jul 09
1
[PATCH RFC] first cut at splitting up paravirt_ops
...SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(insns, len, start, end);
break;
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
+ case PARAVIRT_PATCH(pv_mmu_ops.make_pgd):
+ case PARAVIRT_PATCH(pv_mmu_ops.make_pte):
+ case PARAVIRT_PATCH(pv_mmu_ops.pgd_val):
+ case PARAVIRT_PATCH(pv_mmu_ops.pte_val):
#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
-...
2020 Aug 07
0
[PATCH v3 4/7] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
...CALL1(cpu.load_gs_index, gs);
}
-#endif
static inline void write_ldt_entry(struct desc_struct *dt, int entry,
const void *desc)
@@ -377,10 +373,7 @@ static inline pte_t __pte(pteval_t val)
{
pteval_t ret;
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
+ ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
return (pte_t) { .pte = ret };
}
@@ -389,11 +382,7 @@ static inline pteval_t pte_val(pte_t pte)
{
pteval_t ret;
- if (sizeof(pteval_t) > sizeof(lo...
2020 Aug 15
0
[PATCH v4 1/6] x86/paravirt: remove 32-bit support from PARAVIRT_XXL
...write_ldt_entry(struct desc_struct *dt, int entry,
const void *desc)
@@ -375,52 +371,22 @@ static inline void paravirt_release_p4d(unsigned long pfn)
static inline pte_t __pte(pteval_t val)
{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t, mmu.make_pte, val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t, mmu.make_pte, val);
-
- return (pte_t) { .pte = ret };
+ return (pte_t) { PVOP_CALLEE1(pteval_t, mmu.make_pte, val) };
}
static inline pteval_t pte_val(pte_t pte)
{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))...
2018 Aug 10
0
[PATCH 04/10] x86/paravirt: use a single ops structure
...d,
+ .pv_mmu_ops.set_pgd = native_set_pgd,
#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
#endif /* CONFIG_PGTABLE_LEVELS >= 4 */
#endif /* CONFIG_PGTABLE_LEVELS >= 3 */
- .pte_val = PTE_IDENT,
- .pgd_val = PTE_IDENT,
+ .pv_mmu_ops.pte_val = PTE_IDENT,
+ .pv_mmu_ops.pgd_val = PTE_IDENT,
- .make_pte = PTE_IDENT,
- .make_pgd = PTE_IDENT,
+ .pv_mmu_ops.make_pte = PTE_IDENT,
+ .pv_mmu_ops.make_pgd = PTE_IDENT,
- .dup_mmap = paravirt_nop,
- .exit_mmap = paravirt_nop,
- .activate_mm = paravirt_nop,
+ .pv_mmu_ops.dup_mmap = paravirt_nop,
+ .pv_mmu_ops.exit_mmap = paravirt_nop,
+ .pv_mmu_ops.activ...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...);
+ SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(ibuf, len, start, end);
- break;
-
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
-#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
- case PARAVIRT_PATCH(pmd_val):
-#endif
- /* These functions end up returning exactly what
- they're passed, in the same registers. */
- ret = paravirt_patch_nop();...
2007 Oct 09
2
[PATCH RFC REPOST 1/2] paravirt: refactor struct paravirt_ops into smaller pv_*_ops
...);
+ SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(ibuf, len, start, end);
- break;
-
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
-#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
- case PARAVIRT_PATCH(pmd_val):
-#endif
- /* These functions end up returning exactly what
- they're passed, in the same registers. */
- ret = paravirt_patch_nop();...
2007 Sep 28
2
[PATCH RFC] paravirt_ops: refactor struct paravirt_ops into smaller pv_*_ops
...SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(ibuf, len, start, end);
- break;
-
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
-#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
- case PARAVIRT_PATCH(pmd_val):
-#endif
- /* These functions end up returning exactly what
- they're passed, in the same registers. */
- ret = paravirt_patch_nop();...
2007 Sep 28
2
[PATCH RFC] paravirt_ops: refactor struct paravirt_ops into smaller pv_*_ops
...SITE(pv_mmu_ops, read_cr2);
+ SITE(pv_mmu_ops, read_cr3);
+ SITE(pv_mmu_ops, write_cr3);
+ SITE(pv_cpu_ops, clts);
+ SITE(pv_cpu_ops, read_tsc);
#undef SITE
patch_site:
ret = paravirt_patch_insns(ibuf, len, start, end);
- break;
-
- case PARAVIRT_PATCH(make_pgd):
- case PARAVIRT_PATCH(make_pte):
- case PARAVIRT_PATCH(pgd_val):
- case PARAVIRT_PATCH(pte_val):
-#ifdef CONFIG_X86_PAE
- case PARAVIRT_PATCH(make_pmd):
- case PARAVIRT_PATCH(pmd_val):
-#endif
- /* These functions end up returning exactly what
- they're passed, in the same registers. */
- ret = paravirt_patch_nop();...
2023 Feb 07
1
[PATCH v2] x86/paravirt: merge activate_mm and dup_mmap callbacks
...top-level */
int (*pgd_alloc)(struct mm_struct *mm);
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 327757afb027..ff1109b9c6cd 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -352,8 +352,7 @@ struct paravirt_patch_template pv_ops = {
.mmu.make_pte = PTE_IDENT,
.mmu.make_pgd = PTE_IDENT,
- .mmu.dup_mmap = paravirt_nop,
- .mmu.activate_mm = paravirt_nop,
+ .mmu.enter_mmap = paravirt_nop,
.mmu.lazy_mode = {
.enter = paravirt_nop,
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index cb258f58fdc8..cbc53da4c1b4 100644
--- a/...
2019 Jul 15
5
[PATCH 0/2] Remove 32-bit Xen PV guest support
The long term plan has been to replace Xen PV guests by PVH. The first
victim of that plan are now 32-bit PV guests, as those are used only
rather seldom these days. Xen on x86 requires 64-bit support and with
Grub2 now supporting PVH officially since version 2.04 there is no
need to keep 32-bit PV guest support alive in the Linux kernel.
Additionally Meltdown mitigation is not available in the
2019 Jul 15
5
[PATCH 0/2] Remove 32-bit Xen PV guest support
The long term plan has been to replace Xen PV guests by PVH. The first
victim of that plan are now 32-bit PV guests, as those are used only
rather seldom these days. Xen on x86 requires 64-bit support and with
Grub2 now supporting PVH officially since version 2.04 there is no
need to keep 32-bit PV guest support alive in the Linux kernel.
Additionally Meltdown mitigation is not available in the
2007 Apr 18
1
rough sketch of revised patching infrastructure
Here's the new patching patch. It compiles, but it doesn't, you know,
boot, as such.
The basic idea is to make the incremental cost of patching a new hook as
small as possible. If a backend wants pure default patch handling, then
it can simply call paravirt_patcher with a NULL patch table; this will
end up patching calls to be direct calls to the paravirt op, unless the
op is NULL or