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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 5 of 6] Rework stale p2m auditing
Well, clearly that code has bit-rotted considerably and long ago. So
whatever purpose it served, no one is in need of it presently.
My intention is to call the p2m audit domctl during runtime. You could
turn on sharing, do some sharing operations, and then audit the p2m. The
pager could periodically audit via a domctl for debugging purposes. libxl
debug builds could audit the p2m before or after xl mem-set. Etc...
More subtly, if we transition to fine-grained p2m locks, auditing the p2m
will negate most benefits, and introduce the non-trivial complexity of
promoting fine-grained locks.
Andres
> On Mon, Nov 14, 2011 at 9:48 PM, Andres Lagar-Cavilla
> <andres@xxxxxxxxxxxxxxxx> wrote:
>> xen/arch/x86/domctl.c | 24 +++++++
>> xen/arch/x86/mm/p2m-ept.c | 1 +
>> xen/arch/x86/mm/p2m-pod.c | 5 -
>> xen/arch/x86/mm/p2m-pt.c | 137
>> +++++++------------------------------------
>> xen/arch/x86/mm/p2m.c | 124
>> ++++++++++++++++++++++++++++++++++++---
>> xen/include/asm-x86/p2m.h | 11 ++-
>> xen/include/public/domctl.h | 12 +++
>> 7 files changed, 180 insertions(+), 134 deletions(-)
>>
>>
>> The p2m audit code doesn't even compile, let alone work. It also
>> partially supports ept. Make it:
>>
>> - compile
>> - lay groundwork for eventual ept support
>
> This stuff looks good (haven't reviewed it in detail), but...
>
>> - move out of the way of all calls and turn it into a domctl. It's
>> obviously not being used by anybody presently.
>> - enable it via said domctl
>
> ..the idea with having audit_p2m() sprinkled around the code was to
> help narrow down what bit of code was screwing up the p2m table. I'm
> not sure switching it to a domctl will really help debugging in the
> future. How were you envisioning this would be used?
>
>>
>> Signed-off-by: Andres Lagar-Cavilla <andres@xxxxxxxxxxxxxxxx>
>>
>> diff -r f11528df1df3 -r 764e0872dd4f xen/arch/x86/domctl.c
>> --- a/xen/arch/x86/domctl.c
>> +++ b/xen/arch/x86/domctl.c
>> @@ -1449,6 +1449,30 @@ long arch_do_domctl(
>> break;
>> #endif /* __x86_64__ */
>>
>> + case XEN_DOMCTL_audit_p2m:
>> + {
>> + struct domain *d;
>> +
>> + ret = -ESRCH;
>> + d = rcu_lock_domain_by_id(domctl->domain);
>> + if ( d != NULL )
>> + {
>> +#if P2M_AUDIT
>> + audit_p2m(d,
>> + &domctl->u.audit_p2m.orphans_debug,
>> + &domctl->u.audit_p2m.orphans_invalid,
>> + &domctl->u.audit_p2m.m2p_bad,
>> + &domctl->u.audit_p2m.p2m_bad);
>> + ret = (copy_to_guest(u_domctl, domctl, 1)) ?
>> + -EFAULT : 0;
>> +#else
>> + ret = -ENOSYS;
>> +#endif /* P2M_AUDIT */
>> + rcu_unlock_domain(d);
>> + }
>> + }
>> + break;
>> +
>> case XEN_DOMCTL_set_access_required:
>> {
>> struct domain *d;
>> diff -r f11528df1df3 -r 764e0872dd4f xen/arch/x86/mm/p2m-ept.c
>> --- a/xen/arch/x86/mm/p2m-ept.c
>> +++ b/xen/arch/x86/mm/p2m-ept.c
>> @@ -817,6 +817,7 @@ void ept_p2m_init(struct p2m_domain *p2m
>> p2m->set_entry = ept_set_entry;
>> p2m->get_entry = ept_get_entry;
>> p2m->change_entry_type_global = ept_change_entry_type_global;
>> + p2m->audit_p2m = NULL;
>> }
>>
>> static void ept_dump_p2m_table(unsigned char key)
>> diff -r f11528df1df3 -r 764e0872dd4f xen/arch/x86/mm/p2m-pod.c
>> --- a/xen/arch/x86/mm/p2m-pod.c
>> +++ b/xen/arch/x86/mm/p2m-pod.c
>> @@ -522,7 +522,6 @@ p2m_pod_decrease_reservation(struct doma
>> steal_for_cache = ( p2m->pod.entry_count > p2m->pod.count );
>>
>> p2m_lock(p2m);
>> - audit_p2m(p2m, 1);
>>
>> if ( unlikely(d->is_dying) )
>> goto out_unlock;
>> @@ -616,7 +615,6 @@ out_entry_check:
>> }
>>
>> out_unlock:
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>>
>> out:
>> @@ -986,7 +984,6 @@ p2m_pod_demand_populate(struct p2m_domai
>> */
>> set_p2m_entry(p2m, gfn_aligned, _mfn(0), PAGE_ORDER_2M,
>> p2m_populate_on_demand, p2m->default_access);
>> - audit_p2m(p2m, 1);
>> return 0;
>> }
>>
>> @@ -1108,7 +1105,6 @@ guest_physmap_mark_populate_on_demand(st
>> return rc;
>>
>> p2m_lock(p2m);
>> - audit_p2m(p2m, 1);
>>
>> P2M_DEBUG("mark pod gfn=%#lx\n", gfn);
>>
>> @@ -1142,7 +1138,6 @@ guest_physmap_mark_populate_on_demand(st
>> BUG_ON(p2m->pod.entry_count < 0);
>> }
>>
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>>
>> out:
>> diff -r f11528df1df3 -r 764e0872dd4f xen/arch/x86/mm/p2m-pt.c
>> --- a/xen/arch/x86/mm/p2m-pt.c
>> +++ b/xen/arch/x86/mm/p2m-pt.c
>> @@ -483,7 +483,6 @@ static int p2m_pod_check_and_populate(st
>> /* This is called from the p2m lookups, which can happen with or
>> * without the lock hed. */
>> p2m_lock_recursive(p2m);
>> - audit_p2m(p2m, 1);
>>
>> /* Check to make sure this is still PoD */
>> if ( p2m_flags_to_type(l1e_get_flags(*p2m_entry)) !=
>> p2m_populate_on_demand )
>> @@ -494,7 +493,6 @@ static int p2m_pod_check_and_populate(st
>>
>> r = p2m_pod_demand_populate(p2m, gfn, order, q);
>>
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>>
>> return r;
>> @@ -975,118 +973,23 @@ static void p2m_change_type_global(struc
>>
>> }
>>
>> -/* Set up the p2m function pointers for pagetable format */
>> -void p2m_pt_init(struct p2m_domain *p2m)
>> +#if P2M_AUDIT
>> +long p2m_pt_audit_p2m(struct p2m_domain *p2m)
>> {
>> - p2m->set_entry = p2m_set_entry;
>> - p2m->get_entry = p2m_gfn_to_mfn;
>> - p2m->change_entry_type_global = p2m_change_type_global;
>> - p2m->write_p2m_entry = paging_write_p2m_entry;
>> -}
>> -
>> -
>> -#if P2M_AUDIT
>> -/* strict_m2p == 0 allows m2p mappings that don'#t match the p2m.
>> - * It's intended for add_to_physmap, when the domain has just been
>> allocated
>> - * new mfns that might have stale m2p entries from previous owners */
>> -void audit_p2m(struct p2m_domain *p2m, int strict_m2p)
>> -{
>> - struct page_info *page;
>> - struct domain *od;
>> - unsigned long mfn, gfn, m2pfn, lp2mfn = 0;
>> int entry_count = 0;
>> - mfn_t p2mfn;
>> - unsigned long orphans_d = 0, orphans_i = 0, mpbad = 0, pmbad = 0;
>> + unsigned long pmbad = 0;
>> + unsigned long mfn, gfn, m2pfn;
>> int test_linear;
>> - p2m_type_t type;
>> struct domain *d = p2m->domain;
>>
>> - if ( !paging_mode_translate(d) )
>> - return;
>> -
>> - //P2M_PRINTK("p2m audit starts\n");
>> + ASSERT(p2m_locked_by_me(p2m));
>>
>> test_linear = ( (d == current->domain)
>> && !pagetable_is_null(current->arch.monitor_table)
>> );
>> if ( test_linear )
>> flush_tlb_local();
>>
>> - spin_lock(&d->page_alloc_lock);
>> -
>> - /* Audit part one: walk the domain's page allocation list, checking
>> - * the m2p entries. */
>> - page_list_for_each ( page, &d->page_list )
>> - {
>> - mfn = mfn_x(page_to_mfn(page));
>> -
>> - // P2M_PRINTK("auditing guest page, mfn=%#lx\n", mfn);
>> -
>> - od = page_get_owner(page);
>> -
>> - if ( od != d )
>> - {
>> - P2M_PRINTK("wrong owner %#lx -> %p(%u) != %p(%u)\n",
>> - mfn, od, (od?od->domain_id:-1), d,
>> d->domain_id);
>> - continue;
>> - }
>> -
>> - gfn = get_gpfn_from_mfn(mfn);
>> - if ( gfn == INVALID_M2P_ENTRY )
>> - {
>> - orphans_i++;
>> - //P2M_PRINTK("orphaned guest page: mfn=%#lx has invalid
>> gfn\n",
>> - // mfn);
>> - continue;
>> - }
>> -
>> - if ( gfn == 0x55555555 || gfn == 0x5555555555555555 )
>> - {
>> - orphans_d++;
>> - //P2M_PRINTK("orphaned guest page: mfn=%#lx has debug
>> gfn\n",
>> - // mfn);
>> - continue;
>> - }
>> -
>> - if ( gfn == SHARED_M2P_ENTRY )
>> - {
>> - P2M_PRINTK("shared mfn (%lx) on domain page list!\n",
>> - mfn);
>> - continue;
>> - }
>> -
>> - p2mfn = gfn_to_mfn_type_p2m(p2m, gfn, &type, p2m_query);
>> - if ( strict_m2p && mfn_x(p2mfn) != mfn )
>> - {
>> - mpbad++;
>> - P2M_PRINTK("map mismatch mfn %#lx -> gfn %#lx -> mfn %#lx"
>> - " (-> gfn %#lx)\n",
>> - mfn, gfn, mfn_x(p2mfn),
>> - (mfn_valid(p2mfn)
>> - ? get_gpfn_from_mfn(mfn_x(p2mfn))
>> - : -1u));
>> - /* This m2p entry is stale: the domain has another frame in
>> - * this physical slot. No great disaster, but for
>> neatness,
>> - * blow away the m2p entry. */
>> - set_gpfn_from_mfn(mfn, INVALID_M2P_ENTRY);
>> - }
>> -
>> - if ( test_linear && (gfn <= p2m->max_mapped_pfn) )
>> - {
>> - lp2mfn = mfn_x(gfn_to_mfn_type_p2m(p2m, gfn, &type,
>> p2m_query));
>> - if ( lp2mfn != mfn_x(p2mfn) )
>> - {
>> - P2M_PRINTK("linear mismatch gfn %#lx -> mfn %#lx "
>> - "(!= mfn %#lx)\n", gfn, lp2mfn,
>> mfn_x(p2mfn));
>> - }
>> - }
>> -
>> - // P2M_PRINTK("OK: mfn=%#lx, gfn=%#lx, p2mfn=%#lx,
>> lp2mfn=%#lx\n",
>> - // mfn, gfn, mfn_x(p2mfn), lp2mfn);
>> - }
>> -
>> - spin_unlock(&d->page_alloc_lock);
>> -
>> - /* Audit part two: walk the domain's p2m table, checking the
>> entries. */
>> + /* Audit part one: walk the domain's p2m table, checking the
>> entries. */
>> if ( pagetable_get_pfn(p2m_get_pagetable(p2m)) != 0 )
>> {
>> l2_pgentry_t *l2e;
>> @@ -1239,17 +1142,23 @@ void audit_p2m(struct p2m_domain *p2m, i
>> entry_count);
>> BUG();
>> }
>> -
>> - //P2M_PRINTK("p2m audit complete\n");
>> - //if ( orphans_i | orphans_d | mpbad | pmbad )
>> - // P2M_PRINTK("p2m audit found %lu orphans (%lu inval %lu
>> debug)\n",
>> - // orphans_i + orphans_d, orphans_i, orphans_d);
>> - if ( mpbad | pmbad )
>> - {
>> - P2M_PRINTK("p2m audit found %lu odd p2m, %lu bad m2p
>> entries\n",
>> - pmbad, mpbad);
>> - WARN();
>> - }
>> +
>> + return pmbad;
>> }
>> #endif /* P2M_AUDIT */
>>
>> +/* Set up the p2m function pointers for pagetable format */
>> +void p2m_pt_init(struct p2m_domain *p2m)
>> +{
>> + p2m->set_entry = p2m_set_entry;
>> + p2m->get_entry = p2m_gfn_to_mfn;
>> + p2m->change_entry_type_global = p2m_change_type_global;
>> + p2m->write_p2m_entry = paging_write_p2m_entry;
>> +#if P2M_AUDIT
>> + p2m->audit_p2m = p2m_pt_audit_p2m;
>> +#else
>> + p2m->audit_p2m = NULL;
>> +#endif
>> +}
>> +
>> +
>> diff -r f11528df1df3 -r 764e0872dd4f xen/arch/x86/mm/p2m.c
>> --- a/xen/arch/x86/mm/p2m.c
>> +++ b/xen/arch/x86/mm/p2m.c
>> @@ -439,9 +439,7 @@ guest_physmap_remove_page(struct domain
>> {
>> struct p2m_domain *p2m = p2m_get_hostp2m(d);
>> p2m_lock(p2m);
>> - audit_p2m(p2m, 1);
>> p2m_remove_page(p2m, gfn, mfn, page_order);
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>> }
>>
>> @@ -482,7 +480,6 @@ guest_physmap_add_entry(struct domain *d
>> return rc;
>>
>> p2m_lock(p2m);
>> - audit_p2m(p2m, 0);
>>
>> P2M_DEBUG("adding gfn=%#lx mfn=%#lx\n", gfn, mfn);
>>
>> @@ -566,7 +563,6 @@ guest_physmap_add_entry(struct domain *d
>> }
>> }
>>
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>>
>> return rc;
>> @@ -656,7 +652,6 @@ set_mmio_p2m_entry(struct domain *d, uns
>>
>> P2M_DEBUG("set mmio %lx %lx\n", gfn, mfn_x(mfn));
>> rc = set_p2m_entry(p2m, gfn, mfn, PAGE_ORDER_4K, p2m_mmio_direct,
>> p2m->default_access);
>> - audit_p2m(p2m, 1);
>> p2m_unlock(p2m);
>> if ( 0 == rc )
>> gdprintk(XENLOG_ERR,
>> @@ -688,7 +683,6 @@ clear_mmio_p2m_entry(struct domain *d, u
>> goto out;
>> }
>> rc = set_p2m_entry(p2m, gfn, _mfn(INVALID_MFN), PAGE_ORDER_4K,
>> p2m_invalid, p2m->default_access);
>> - audit_p2m(p2m, 1);
>>
>> out:
>> p2m_unlock(p2m);
>> @@ -785,7 +779,6 @@ int p2m_mem_paging_nominate(struct domai
>>
>> /* Fix p2m entry */
>> set_p2m_entry(p2m, gfn, mfn, PAGE_ORDER_4K, p2m_ram_paging_out, a);
>> - audit_p2m(p2m, 1);
>> ret = 0;
>>
>> out:
>> @@ -852,7 +845,6 @@ int p2m_mem_paging_evict(struct domain *
>>
>> /* Remove mapping from p2m table */
>> set_p2m_entry(p2m, gfn, _mfn(INVALID_MFN), PAGE_ORDER_4K,
>> p2m_ram_paged, a);
>> - audit_p2m(p2m, 1);
>>
>> /* Clear content before returning the page to Xen */
>> scrub_one_page(page);
>> @@ -946,7 +938,6 @@ void p2m_mem_paging_populate(struct doma
>> req.flags |= MEM_EVENT_FLAG_EVICT_FAIL;
>>
>> set_p2m_entry(p2m, gfn, mfn, PAGE_ORDER_4K,
>> p2m_ram_paging_in_start, a);
>> - audit_p2m(p2m, 1);
>> }
>> p2m_unlock(p2m);
>>
>> @@ -1014,7 +1005,6 @@ int p2m_mem_paging_prep(struct domain *d
>>
>> /* Fix p2m mapping */
>> set_p2m_entry(p2m, gfn, mfn, PAGE_ORDER_4K, p2m_ram_paging_in, a);
>> - audit_p2m(p2m, 1);
>>
>> atomic_dec(&d->paged_pages);
>>
>> @@ -1063,7 +1053,6 @@ void p2m_mem_paging_resume(struct domain
>> {
>> set_p2m_entry(p2m, rsp.gfn, mfn, PAGE_ORDER_4K, p2m_ram_rw,
>> a);
>> set_gpfn_from_mfn(mfn_x(mfn), rsp.gfn);
>> - audit_p2m(p2m, 1);
>> }
>> p2m_unlock(p2m);
>> }
>> @@ -1425,6 +1414,119 @@ unsigned long paging_gva_to_gfn(struct v
>> return hostmode->gva_to_gfn(v, hostp2m, va, pfec);
>> }
>>
>> +/*** Audit ***/
>> +
>> +#if P2M_AUDIT
>> +void audit_p2m(struct domain *d,
>> + uint64_t *orphans_debug,
>> + uint64_t *orphans_invalid,
>> + uint64_t *m2p_bad,
>> + uint64_t *p2m_bad)
>> +{
>> + struct page_info *page;
>> + struct domain *od;
>> + unsigned long mfn, gfn;
>> + mfn_t p2mfn;
>> + unsigned long orphans_d = 0, orphans_i = 0, mpbad = 0, pmbad = 0;
>> + p2m_access_t p2ma;
>> + p2m_type_t type;
>> + struct p2m_domain *p2m = p2m_get_hostp2m(d);
>> +
>> + if ( !paging_mode_translate(d) )
>> + goto out_p2m_audit;
>> +
>> + P2M_PRINTK("p2m audit starts\n");
>> +
>> + p2m_lock(p2m);
>> +
>> + if (p2m->audit_p2m)
>> + pmbad = p2m->audit_p2m(p2m);
>> +
>> + /* Audit part two: walk the domain's page allocation list, checking
>> + * the m2p entries. */
>> + spin_lock(&d->page_alloc_lock);
>> + page_list_for_each ( page, &d->page_list )
>> + {
>> + mfn = mfn_x(page_to_mfn(page));
>> +
>> + P2M_PRINTK("auditing guest page, mfn=%#lx\n", mfn);
>> +
>> + od = page_get_owner(page);
>> +
>> + if ( od != d )
>> + {
>> + P2M_PRINTK("wrong owner %#lx -> %p(%u) != %p(%u)\n",
>> + mfn, od, (od?od->domain_id:-1), d,
>> d->domain_id);
>> + continue;
>> + }
>> +
>> + gfn = get_gpfn_from_mfn(mfn);
>> + if ( gfn == INVALID_M2P_ENTRY )
>> + {
>> + orphans_i++;
>> + P2M_PRINTK("orphaned guest page: mfn=%#lx has invalid
>> gfn\n",
>> + mfn);
>> + continue;
>> + }
>> +
>> + if ( gfn == 0x55555555 || gfn == 0x5555555555555555 )
>> + {
>> + orphans_d++;
>> + P2M_PRINTK("orphaned guest page: mfn=%#lx has debug gfn\n",
>> + mfn);
>> + continue;
>> + }
>> +
>> + if ( gfn == SHARED_M2P_ENTRY )
>> + {
>> + P2M_PRINTK("shared mfn (%lx) on domain page list!\n",
>> + mfn);
>> + continue;
>> + }
>> +
>> + p2mfn = get_gfn_type_access(p2m, gfn, &type, &p2ma, p2m_query,
>> NULL);
>> + if ( mfn_x(p2mfn) != mfn )
>> + {
>> + mpbad++;
>> + P2M_PRINTK("map mismatch mfn %#lx -> gfn %#lx -> mfn %#lx"
>> + " (-> gfn %#lx)\n",
>> + mfn, gfn, mfn_x(p2mfn),
>> + (mfn_valid(p2mfn)
>> + ? get_gpfn_from_mfn(mfn_x(p2mfn))
>> + : -1u));
>> + /* This m2p entry is stale: the domain has another frame in
>> + * this physical slot. No great disaster, but for
>> neatness,
>> + * blow away the m2p entry. */
>> + set_gpfn_from_mfn(mfn, INVALID_M2P_ENTRY);
>> + }
>> + __put_gfn(p2m, gfn);
>> +
>> + P2M_PRINTK("OK: mfn=%#lx, gfn=%#lx, p2mfn=%#lx, lp2mfn=%#lx\n",
>> + mfn, gfn, mfn_x(p2mfn), lp2mfn);
>> + }
>> + spin_unlock(&d->page_alloc_lock);
>> +
>> + p2m_unlock(p2m);
>> +
>> + P2M_PRINTK("p2m audit complete\n");
>> + if ( orphans_i | orphans_d | mpbad | pmbad )
>> + P2M_PRINTK("p2m audit found %lu orphans (%lu inval %lu
>> debug)\n",
>> + orphans_i + orphans_d, orphans_i, orphans_d);
>> + if ( mpbad | pmbad )
>> + {
>> + P2M_PRINTK("p2m audit found %lu odd p2m, %lu bad m2p
>> entries\n",
>> + pmbad, mpbad);
>> + WARN();
>> + }
>> +
>> +out_p2m_audit:
>> + *orphans_debug = (uint64_t) orphans_d;
>> + *orphans_invalid = (uint64_t) orphans_i;
>> + *m2p_bad = (uint64_t) mpbad;
>> + *p2m_bad = (uint64_t) pmbad;
>> +}
>> +#endif /* P2M_AUDIT */
>> +
>> /*
>> * Local variables:
>> * mode: C
>> diff -r f11528df1df3 -r 764e0872dd4f xen/include/asm-x86/p2m.h
>> --- a/xen/include/asm-x86/p2m.h
>> +++ b/xen/include/asm-x86/p2m.h
>> @@ -244,6 +244,7 @@ struct p2m_domain {
>> unsigned long gfn,
>> l1_pgentry_t *p,
>> mfn_t table_mfn, l1_pgentry_t
>> new,
>> unsigned int level);
>> + long (*audit_p2m)(struct p2m_domain *p2m);
>>
>> /* Default P2M access type for each page in the the domain: new
>> pages,
>> * swapped in pages, cleared pages, and pages that are ambiquously
>> @@ -558,13 +559,15 @@ int set_p2m_entry(struct p2m_domain *p2m
>> extern void p2m_pt_init(struct p2m_domain *p2m);
>>
>> /* Debugging and auditing of the P2M code? */
>> -#define P2M_AUDIT 0
>> +#define P2M_AUDIT 1
>> #define P2M_DEBUGGING 0
>>
>> #if P2M_AUDIT
>> -extern void audit_p2m(struct p2m_domain *p2m, int strict_m2p);
>> -#else
>> -# define audit_p2m(_p2m, _m2p) do { (void)(_p2m),(_m2p); } while (0)
>> +extern void audit_p2m(struct domain *d,
>> + uint64_t *orphans_debug,
>> + uint64_t *orphans_invalid,
>> + uint64_t *m2p_bad,
>> + uint64_t *p2m_bad);
>> #endif /* P2M_AUDIT */
>>
>> /* Printouts */
>> diff -r f11528df1df3 -r 764e0872dd4f xen/include/public/domctl.h
>> --- a/xen/include/public/domctl.h
>> +++ b/xen/include/public/domctl.h
>> @@ -800,6 +800,16 @@ struct xen_domctl_mem_sharing_op {
>> typedef struct xen_domctl_mem_sharing_op xen_domctl_mem_sharing_op_t;
>> DEFINE_XEN_GUEST_HANDLE(xen_domctl_mem_sharing_op_t);
>>
>> +struct xen_domctl_audit_p2m {
>> + /* OUT error counts */
>> + uint64_t orphans_debug;
>> + uint64_t orphans_invalid;
>> + uint64_t m2p_bad;
>> + uint64_t p2m_bad;
>> +};
>> +typedef struct xen_domctl_audit_p2m xen_domctl_audit_p2m_t;
>> +DEFINE_XEN_GUEST_HANDLE(xen_domctl_audit_p2m_t);
>> +
>> #if defined(__i386__) || defined(__x86_64__)
>> /* XEN_DOMCTL_setvcpuextstate */
>> /* XEN_DOMCTL_getvcpuextstate */
>> @@ -898,6 +908,7 @@ struct xen_domctl {
>> #define XEN_DOMCTL_setvcpuextstate 62
>> #define XEN_DOMCTL_getvcpuextstate 63
>> #define XEN_DOMCTL_set_access_required 64
>> +#define XEN_DOMCTL_audit_p2m 65
>> #define XEN_DOMCTL_gdbsx_guestmemio 1000
>> #define XEN_DOMCTL_gdbsx_pausevcpu 1001
>> #define XEN_DOMCTL_gdbsx_unpausevcpu 1002
>> @@ -951,6 +962,7 @@ struct xen_domctl {
>> struct xen_domctl_vcpuextstate vcpuextstate;
>> #endif
>> struct xen_domctl_set_access_required access_required;
>> + struct xen_domctl_audit_p2m audit_p2m;
>> struct xen_domctl_gdbsx_memio gdbsx_guest_memio;
>> struct xen_domctl_gdbsx_pauseunp_vcpu gdbsx_pauseunp_vcpu;
>> struct xen_domctl_gdbsx_domstatus gdbsx_domstatus;
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-devel
>>
>
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