search for: pte_update_def

pte_update_defer can be removed as it is always set to the same function as pte_update. So any usage of pte_update_defer() can be replaced by pte_update(). pmd_update_defer is always set to paravirt_nop, so it can just be nuked. Signed-off-by: Juergen Gross <jgross at suse.com> --- arch/x86/include/asm/p...

pte_update_defer can be removed as it is always set to the same function as pte_update. So any usage of pte_update_defer() can be replaced by pte_update(). pmd_update_defer is always set to paravirt_nop, so it can just be nuked. Signed-off-by: Juergen Gross <jgross at suse.com> --- arch/x86/include/asm/p...

pte_update_defer can be removed as it is always set to the same function as pte_update. So any usage of pte_update_defer() can be replaced by pte_update(). pmd_update and pmd_update_defer are always set to paravirt_nop, so they can just be nuked. Signed-off-by: Juergen Gross <jgross at suse.com> --- arch...

pte_update_defer can be removed as it is always set to the same function as pte_update. So any usage of pte_update_defer() can be replaced by pte_update(). pmd_update and pmd_update_defer are always set to paravirt_nop, so they can just be nuked. Signed-off-by: Juergen Gross <jgross at suse.com> --- arch...

Impact: intermittent guest segv/crash fix I've been seeing random guest bad address crashes and segmentation faults: bisect led to 4f98a2fee8 (vmscan: split LRU lists into anon & file sets), but that's a red herring. It turns out that lguest never hooked up the pte_update/pte_update_defer calls, so our ptes were not always in sync. After the vmscan commit, the bug became reproducible; now a fsck in a 64MB guest causes reproducible pagetable corruption. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: jeremy at xensource.com Cc: virtualization at lists.osdl.org C...

Make parameter names match function argument names for the yet to be defined pte_update_defer accessor. Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r c7f79c35c160 include/asm-i386/pgtable.h --- a/include/asm-i386/pgtable.h Thu Oct 19 03:03:24 2006 -0700 +++ b/include/asm-i386/pgtable.h Thu Oct 19 03:11:31 2006 -0700 @@ -275,7 +275,7 @@ do { \ do { \ if...

Make parameter names match function argument names for the yet to be defined pte_update_defer accessor. Signed-off-by: Zachary Amsden <zach@vmware.com> diff -r c7f79c35c160 include/asm-i386/pgtable.h --- a/include/asm-i386/pgtable.h Thu Oct 19 03:03:24 2006 -0700 +++ b/include/asm-i386/pgtable.h Thu Oct 19 03:11:31 2006 -0700 @@ -275,7 +275,7 @@ do { \ do { \ if...

Impact: intermittent guest segv/crash fix I've been seeing random guest bad address crashes and segmentation faults: bisect led to 4f98a2fee8 (vmscan: split LRU lists into anon & file sets), but that's a red herring. It turns out that lguest never hooked up the pte_update/pte_update_defer calls, so our ptes were not always in sync. After the vmscan commit, the bug became reproducible; now a fsck in a 64MB guest causes reproducible pagetable corruption. Signed-off-by: Rusty Russell <rusty at rustcorp.com.au> Cc: jeremy at xensource.com Cc: virtualization at lists.osdl.org C...

...============================================================ --- a/arch/i386/mm/init.c +++ b/arch/i386/mm/init.c @@ -493,6 +493,7 @@ int __init set_kernel_exec(unsigned long pte->pte_high &= ~(1 << (_PAGE_BIT_NX - 32)); else pte->pte_high |= 1 << (_PAGE_BIT_NX - 32); + pte_update_defer(&init_mm, vaddr, pte); __flush_tlb_all(); out: return ret; =================================================================== --- a/include/asm-i386/pgtable.h +++ b/include/asm-i386/pgtable.h @@ -247,6 +247,23 @@ static inline pte_t pte_mkhuge(pte_t pte #endif /* + * Rules for using...

...msden <zach@vmware.com> diff -r c02c6f5e882c arch/i386/kernel/paravirt.c --- a/arch/i386/kernel/paravirt.c Wed Apr 11 16:25:09 2007 -0700 +++ b/arch/i386/kernel/paravirt.c Wed Apr 11 17:09:55 2007 -0700 @@ -315,8 +315,6 @@ struct paravirt_ops paravirt_ops = { .pte_update = paravirt_nop, .pte_update_defer = paravirt_nop, - .ptep_get_and_clear = native_ptep_get_and_clear, - #ifdef CONFIG_HIGHPTE .kmap_atomic_pte = kmap_atomic, #endif diff -r c02c6f5e882c include/asm-i386/paravirt.h --- a/include/asm-i386/paravirt.h Wed Apr 11 16:25:09 2007 -0700 +++ b/include/asm-i386/paravirt.h Wed Apr 11 17...

...msden <zach@vmware.com> diff -r c02c6f5e882c arch/i386/kernel/paravirt.c --- a/arch/i386/kernel/paravirt.c Wed Apr 11 16:25:09 2007 -0700 +++ b/arch/i386/kernel/paravirt.c Wed Apr 11 17:09:55 2007 -0700 @@ -315,8 +315,6 @@ struct paravirt_ops paravirt_ops = { .pte_update = paravirt_nop, .pte_update_defer = paravirt_nop, - .ptep_get_and_clear = native_ptep_get_and_clear, - #ifdef CONFIG_HIGHPTE .kmap_atomic_pte = kmap_atomic, #endif diff -r c02c6f5e882c include/asm-i386/paravirt.h --- a/include/asm-i386/paravirt.h Wed Apr 11 16:25:09 2007 -0700 +++ b/include/asm-i386/paravirt.h Wed Apr 11 17...

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .read_cr3 = native_read_cr3, + .write_cr3 = native_write_cr3, + + .flush_tlb_user = native_flush_tlb, + .flush_tlb_...

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .read_cr3 = native_read_cr3, + .write_cr3 = native_write_cr3, + + .flush_tlb_user = native_flush_tlb, + .flush_tlb_...

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .pagetable_setup_start = native_pagetable_setup_start, + .pagetable_setup_done = native_pagetable_setup_done, + + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .re...

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .pagetable_setup_start = native_pagetable_setup_start, + .pagetable_setup_done = native_pagetable_setup_done, + + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .re...

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

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

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .pagetable_setup_start = native_pagetable_setup_start, + .pagetable_setup_done = native_pagetable_setup_done, + + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .re...

...e_flush_tlb_others, - - .alloc_pt = paravirt_nop, - .alloc_pd = paravirt_nop, - .alloc_pd_clone = paravirt_nop, - .release_pt = paravirt_nop, - .release_pd = paravirt_nop, - - .set_pte = native_set_pte, - .set_pte_at = native_set_pte_at, - .set_pmd = native_set_pmd, - .pte_update = paravirt_nop, - .pte_update_defer = paravirt_nop, + }, + + .pv_misc_ops = { + .set_lazy_mode = paravirt_nop, + }, + + .pv_mmu_ops = { + .pagetable_setup_start = native_pagetable_setup_start, + .pagetable_setup_done = native_pagetable_setup_done, + + .read_cr2 = native_read_cr2, + .write_cr2 = native_write_cr2, + .re...

...*pgd) +{ + lazy_hcall(LHCALL_INVALIDATE_PGTABLE, __pa(pgd), 0, 0); +} + /* * The Unadvanced Programmable Interrupt Controller. * @@ -1018,6 +1046,7 @@ __init void lguest_init(void) pv_mmu_ops.lazy_mode.leave = lguest_leave_lazy_mode; pv_mmu_ops.pte_update = lguest_pte_update; pv_mmu_ops.pte_update_defer = lguest_pte_update; + pv_mmu_ops.pgd_free = lguest_pgd_free; #ifdef CONFIG_X86_LOCAL_APIC /* apic read/write intercepts */ diff --git a/drivers/lguest/lg.h b/drivers/lguest/lg.h index 5faefea..363c231 100644 --- a/drivers/lguest/lg.h +++ b/drivers/lguest/lg.h @@ -174,6 +174,7 @@ void guest_...