search for: pudp

...-{ - if (sizeof(pmdval_t) > sizeof(long)) - /* 5 arg words */ - pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd); - else - PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp, - native_pmd_val(pmd)); -} - -static inline void set_pud_at(struct mm_struct *mm, unsigned long addr, - pud_t *pudp, pud_t pud) -{ - if (sizeof(pudval_t) > sizeof(long)) - /* 5 arg words */ - pv_mmu_ops.set_pud_at(mm, addr, pudp, pud); - else - PVOP_VCALL4(pv_mmu_ops.set_pud_at, mm, addr, pudp, - native_pud_val(pud)); -} - static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) { pmdval_t val = native...

...-{ - if (sizeof(pmdval_t) > sizeof(long)) - /* 5 arg words */ - pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd); - else - PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp, - native_pmd_val(pmd)); -} - -static inline void set_pud_at(struct mm_struct *mm, unsigned long addr, - pud_t *pudp, pud_t pud) -{ - if (sizeof(pudval_t) > sizeof(long)) - /* 5 arg words */ - pv_mmu_ops.set_pud_at(mm, addr, pudp, pud); - else - PVOP_VCALL4(pv_mmu_ops.set_pud_at, mm, addr, pudp, - native_pud_val(pud)); -} - static inline void set_pmd(pmd_t *pmdp, pmd_t pmd) { pmdval_t val = native...

This series contain fixes to make the paravirt_ops code compile and boot on x86_64. This is a follow-up for the previous series from Glauber.

This series contain fixes to make the paravirt_ops code compile and boot on x86_64. This is a follow-up for the previous series from Glauber.

...ge->flags[HMM_PFN_WRITE] : - range->flags[HMM_PFN_VALID]; -} - static int hmm_vma_handle_pmd(struct mm_walk *walk, unsigned long addr, unsigned long end, @@ -700,10 +691,19 @@ static int hmm_vma_walk_pmd(pmd_t *pmdp, return 0; } -static int hmm_vma_walk_pud(pud_t *pudp, - unsigned long start, - unsigned long end, - struct mm_walk *walk) +#if defined(CONFIG_ARCH_HAS_PTE_DEVMAP) && \ + defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD) +static inline uint64_t pud_to_hmm_pfn_flags(struct hmm_range *range, pud_t pud) +{ + if (!pud_present...

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):

...or (cl = start; cl != end; cl += flush_size) + clflush(cl); +} + +static int set_clr_page_flags(struct x86_mapping_info *info, + unsigned long address, + pteval_t set, pteval_t clr) +{ + unsigned long scratch, *target; + pgd_t *pgdp = (pgd_t *)top_level_pgt; + p4d_t *p4dp; + pud_t *pudp; + pmd_t *pmdp; + pte_t *ptep, pte; + + /* + * First make sure there is a PMD mapping for 'address'. + * It should already exist, but keep things generic. + * + * To map the page just read from it and fault it in if there is no + * mapping yet. add_identity_map() can't be called he...

...NE_DEVICE have one extra reference */ if (is_zone_device_page(page)) { /* @@ -2833,13 +2908,191 @@ int migrate_vma_setup(struct migrate_vma *args) } EXPORT_SYMBOL(migrate_vma_setup); +static pmd_t *find_pmd(struct mm_struct *mm, unsigned long addr) +{ + pgd_t *pgdp; + p4d_t *p4dp; + pud_t *pudp; + + pgdp = pgd_offset(mm, addr); + p4dp = p4d_alloc(mm, pgdp, addr); + if (!p4dp) + return NULL; + pudp = pud_alloc(mm, p4dp, addr); + if (!pudp) + return NULL; + return pmd_alloc(mm, pudp, addr); +} + +#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION +/* + * This code closely follows: + * do_huge_pmd_an...

...t; sizeof(long)) - ret = PVOP_CALLEE2(pmdval_t, mmu.pmd_val, - pmd.pmd, (u64)pmd.pmd >> 32); - else - ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); + ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); return ret; } @@ -504,12 +463,9 @@ static inline void set_pud(pud_t *pudp, pud_t pud) { pudval_t val = native_pud_val(pud); - if (sizeof(pudval_t) > sizeof(long)) - PVOP_VCALL3(mmu.set_pud, pudp, val, (u64)val >> 32); - else - PVOP_VCALL2(mmu.set_pud, pudp, val); + PVOP_VCALL2(mmu.set_pud, pudp, val); } -#if CONFIG_PGTABLE_LEVELS >= 4 + static inline...

...izeof(pmdval_t) > sizeof(long)) - ret = PVOP_CALLEE2(pmdval_t, mmu.pmd_val, - pmd.pmd, (u64)pmd.pmd >> 32); - else - ret = PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); - - return ret; + return PVOP_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd); } static inline void set_pud(pud_t *pudp, pud_t pud) { - pudval_t val = native_pud_val(pud); - - if (sizeof(pudval_t) > sizeof(long)) - PVOP_VCALL3(mmu.set_pud, pudp, val, (u64)val >> 32); - else - PVOP_VCALL2(mmu.set_pud, pudp, val); + PVOP_VCALL2(mmu.set_pud, pudp, native_pud_val(pud)); } -#if CONFIG_PGTABLE_LEVELS >= 4...

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

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

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

...() so that + * we can leverage the get_dev_pagemap() optimization which will not + * re-take a reference on a pgmap if we already have one. + */ + if (pgmap) + put_dev_pagemap(pgmap); pte_unmap(ptep - 1); hmm_vma_walk->last = addr; @@ -714,6 +709,7 @@ static int hmm_vma_walk_pud(pud_t *pudp, struct hmm_vma_walk *hmm_vma_walk = walk->private; struct hmm_range *range = hmm_vma_walk->range; unsigned long addr = start, next; + struct dev_pagemap *pgmap = NULL; pmd_t *pmdp; pud_t pud; int ret; @@ -744,17 +740,14 @@ static int hmm_vma_walk_pud(pud_t *pudp, pfn = pud_p...

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

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

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

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

...u64 clonepfn, u64 start, u64 count); + void (*release_pt)(u64 pfn); + void (*release_pd)(u64 pfn); + + void (*set_pte)(pte_t *ptep, pte_t pteval); + void (*set_pte_at)(struct mm_struct *mm, u64 addr, pte_t *ptep, pte_t pteval); + void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval); + void (*set_pud)(pud_t *pudp, pud_t pudval); + void (*set_pgd)(pgd_t *pgdp, pgd_t pgdval); + + void (*pte_update)(struct mm_struct *mm, u64 addr, pte_t *ptep); + void (*pte_update_defer)(struct mm_struct *mm, u64 addr, pte_t *ptep); + + pte_t (*ptep_get_and_clear)(struct mm_struct *mm, u64 addr, pte_t *ptep); + + void (*pte_cl...

...u64 clonepfn, u64 start, u64 count); + void (*release_pt)(u64 pfn); + void (*release_pd)(u64 pfn); + + void (*set_pte)(pte_t *ptep, pte_t pteval); + void (*set_pte_at)(struct mm_struct *mm, u64 addr, pte_t *ptep, pte_t pteval); + void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval); + void (*set_pud)(pud_t *pudp, pud_t pudval); + void (*set_pgd)(pgd_t *pgdp, pgd_t pgdval); + + void (*pte_update)(struct mm_struct *mm, u64 addr, pte_t *ptep); + void (*pte_update_defer)(struct mm_struct *mm, u64 addr, pte_t *ptep); + + pte_t (*ptep_get_and_clear)(struct mm_struct *mm, u64 addr, pte_t *ptep); + + void (*pte_cl...