Displaying 20 results from an estimated 21 matches for "l1_pgentry_t".
2005 Mar 14
4
[patch/unstable] page table cleanups
...00000000 +0100
+++ xen/arch/x86/shadow.c 2005-03-14 12:34:26.000000000 +0100
@@ -532,13 +532,15 @@ static void shadow_map_l1_into_current_l
{
struct exec_domain *ed = current;
struct domain *d = ed->domain;
- unsigned long *gpl1e, *spl1e, gl2e, sl2e, gl1pfn, sl1mfn, sl1ss;
+ l1_pgentry_t *gpl1e, *spl1e;
+ l2_pgentry_t gl2e, sl2e;
+ unsigned long gl1pfn, sl1mfn, sl1ss;
struct pfn_info *sl1mfn_info;
int i;
__guest_get_l2e(ed, va, &gl2e);
- gl1pfn = gl2e >> PAGE_SHIFT;
+ gl1pfn = l2_pgentry_val(gl2e) >> PAGE_SHIF...
2008 Mar 31
0
what''s the purpose of line page table (PML4 entry 258)
...mm.c?a=x86_64#L2999>
unsigned long flags
<http://lxr.xensource.com/lxr/ident?a=x86_64;i=flags>)
3000 <http://lxr.xensource.com/lxr/source/xen/arch/x86/mm.c?a=x86_64#L3000> {
3001 <http://lxr.xensource.com/lxr/source/xen/arch/x86/mm.c?a=x86_64#L3001>
l1_pgentry_t
<http://lxr.xensource.com/lxr/ident?a=x86_64;i=l1_pgentry_t> val
<http://lxr.xensource.com/lxr/ident?a=x86_64;i=val> = l1e_from_intpte
<http://lxr.xensource.com/lxr/ident?a=x86_64;i=l1e_from_intpte>(val64);
3002 <http://lxr.xensource.com/lxr/source/xen/arch/x86/mm.c?a=x86_64#...
2013 Oct 10
10
[PATCH 0/4] x86: XSA-67 follow-up
1: correct LDT checks
2: add address validity check to guest_map_l1e()
3: use {rd,wr}{fs,gs}base when available
4: check for canonical address before doing page walks
Signed-off-by: Jan Beulich <jbeulich@suse.com>
2012 Mar 01
14
[PATCH 0 of 3] RFC Paging support for AMD NPT V2
There has been some progress, but still no joy. Definitely not intended for
inclusion at this point.
Tim, Wei, I added a Xen command line toggle to disable IOMMU and P2M table
sharing.
Tim, I verified that changes to p2m-pt.c don''t break shadow mode (64bit
hypervisor and Win 7 guest).
Hongkaixing, I incorporated your suggestion in patch 2, so I should add your
Signed-off-by eventually.
2005 Jun 30
0
[PATCH][10/10] Use copy_from_user when accessing guest_pt
...ff -r 2d289d7ab961 -r d0eccea63a24 xen/arch/x86/shadow.c
--- a/xen/arch/x86/shadow.c Thu Jun 30 05:26:09 2005
+++ b/xen/arch/x86/shadow.c Thu Jun 30 05:26:24 2005
@@ -1906,7 +1906,7 @@
unsigned long gpfn, unsigned index)
{
unsigned long smfn = __shadow_status(d, gpfn, PGT_snapshot);
- l1_pgentry_t *snapshot; // could be L1s or L2s or ...
+ l1_pgentry_t *snapshot, gpte; // could be L1s or L2s or ...
int entries_match;
perfc_incrc(snapshot_entry_matches_calls);
@@ -1916,10 +1916,14 @@
snapshot = map_domain_page(smfn);
+ if (__copy_from_user(&gpte, &guest_pt[i...
2005 Sep 05
0
[PATCH][4/6] Add to virtual device operations
...sor virtual address
+ * the hypervisor virtual address should below HYPERVISOR_VIRT_START,
+ * so that share page can be treated as a guest page
+ */
+int map_param_share_page(unsigned long gva, unsigned long hva){
+
+ unsigned long mfn;
+ l2_pgentry_t *mpl2e; /* monitor page table l2 */
+ l1_pgentry_t *mpl1e; /* monitor page table l1 */
+ struct pfn_info *l1_mfn_info;
+ unsigned long l1_mfn;
+ struct vcpu* v = current;
+ struct domain *d = v->domain;
+
+ mfn = __gpfn_to_mfn(d, gva >> PAGE_SHIFT);
+ mpl2e = current->arch.monitor_vtable;
+ if ( mpl2e[l2_table_offse...
2007 May 14
0
[PATCH] x86: replace some intpte_t * casts
..._p), \
+ update_intpte(&_t ## e_get_intpte(*(_p)), \
_t ## e_get_intpte(_o), _t ## e_get_intpte(_n), \
(_m), (_v))
@@ -2498,7 +2498,7 @@ static int create_grant_pte_mapping(
}
ol1e = *(l1_pgentry_t *)va;
- if ( !UPDATE_ENTRY(l1, va, ol1e, nl1e, mfn, v) )
+ if ( !UPDATE_ENTRY(l1, (l1_pgentry_t *)va, ol1e, nl1e, mfn, v) )
{
put_page_type(page);
rc = GNTST_general_error;
@@ -3278,7 +3278,7 @@ static int ptwr_emulated_update(
intpte_t t = old;
ol1e =...
2011 Mar 25
2
[RFC PATCH 2/3] AMD IOMMU: Implement p2m sharing
--
Advanced Micro Devices GmbH
Sitz: Dornach, Gemeinde Aschheim,
Landkreis München Registergericht München,
HRB Nr. 43632
WEEE-Reg-Nr: DE 12919551
Geschäftsführer:
Alberto Bozzo, Andrew Bowd
_______________________________________________
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Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel
2007 Oct 03
0
[PATCH 3/3] TLB flushing and IO memory mapping
...:03:12 2007 +0100
@@ -594,6 +594,14 @@ get_##level##_linear_pagetable(
return 1;
\
}
+
+int iomem_page_test(unsigned long mfn, struct page_info *page)
+{
+ return unlikely(!mfn_valid(mfn)) ||
+ unlikely(page_get_owner(page) == dom_io);
+}
+
+
int
get_page_from_l1e(
l1_pgentry_t l1e, struct domain *d)
@@ -611,8 +619,7 @@ get_page_from_l1e(
return 0;
}
- if ( unlikely(!mfn_valid(mfn)) ||
- unlikely(page_get_owner(page) == dom_io) )
+ if ( iomem_page_test(mfn, page) )
{
/* DOMID_IO reverts to caller for privilege checks. */...
2011 Nov 29
10
[PATCH 0 of 2] Fix correctness race in xc_mem_paging_prep
ging_prep ensures that an mfn is backing the paged-out gfn, and
transitions to the next state in the paging state machine for this page.
Foreign mappings of the gfn will now succeed. This is the key idea, as it
allows the pager to now map the gfn and fill in its contents.
Unfortunately, it also allows any other foreign mapper to map the gfn and read
its contents. This is particularly dangerous
2012 Feb 06
1
[PATCH] ia64: fix build (next instance)
...int (*remove_from_physmap) (struct domain *d1, struct domain *d2);
int (*console_io) (struct domain *d, int cmd);
@@ -174,7 +175,6 @@ struct xsm_operations {
int (*update_va_mapping) (struct domain *d, struct domain *f,
l1_pgentry_t pte);
int (*add_to_physmap) (struct domain *d1, struct domain *d2);
- int (*remove_from_physmap) (struct domain *d1, struct domain *d2);
int (*sendtrigger) (struct domain *d);
int (*bind_pt_irq) (struct domain *d, struct xen_domctl_bind_pt_irq *bind);
int (*unbind_pt_irq) (st...
2007 May 14
0
[PATCH] x86: ptwr adjustments
...(addr & 4) && !do_cmpxchg &&
@@ -3270,7 +3271,7 @@ static int ptwr_emulated_update(
adjust_guest_l1e(nl1e, d);
/* Checked successfully: do the update (write or cmpxchg). */
- pl1e = map_domain_page(page_to_mfn(page));
+ pl1e = map_domain_page(mfn);
pl1e = (l1_pgentry_t *)((unsigned long)pl1e + (addr & ~PAGE_MASK));
if ( do_cmpxchg )
{
@@ -3285,21 +3286,21 @@ static int ptwr_emulated_update(
if ( !okay )
{
unmap_domain_page(pl1e);
- put_page_from_l1e(gl1e_to_ml1e(d, nl1e), d);
+ put_page_from_l1e(n...
2011 May 06
14
[PATCH 0 of 4] Use superpages on restore/migrate
This patch series restores the use of superpages when restoring or
migrating a VM, while retaining efficient batching of 4k pages when
superpages are not appropriate or available.
Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
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2005 May 31
0
[PATCH] Store page and evtchn in start_info_t
...shared_info_frame,
unsigned int control_evtchn,
unsigned long flags,
- unsigned int vcpus)
+ unsigned int vcpus,
+ unsigned int store_evtchn, unsigned long *store_mfn)
{
l1_pgentry_t *vl1tab=NULL, *vl1e=NULL;
l2_pgentry_t *vl2tab=NULL, *vl2e=NULL;
@@ -108,7 +109,8 @@
{
vpt_end = vpt_start + (nr_pt_pages * PAGE_SIZE);
vstartinfo_start = vpt_end;
- vstartinfo_end = vstartinfo_start + PAGE_SIZE;
+ /* Place store shared page afte...
2011 Sep 08
5
[PATCH 0 of 2] v2: memshare/xenpaging/xen-access fixes for xen-unstable
The following two patches allow the parallel use of memsharing, xenpaging and
xen-access by using an independent ring buffer for each feature.
Please review.
v2:
- update mem_event_check_ring arguments, check domain rather than domain_id
- check ring_full first because its value was just evaluated
- check if ring buffer is initialized before calling
mem_access_domctl/mem_paging_domctl
2007 Mar 20
62
RFC: [0/2] Remove netloop by lazy copying in netback
Hi Keir:
These two patches remove the need for netloop by performing the
copying in netback and only if it is necessary. The rationale
is that most packets will be processed without delay allowing
them to be freed without copying at all. So instead of copying
every packet destined to dom0 we''ll only copy those that linger
longer than a specified amount of time (currently 0.5s).
As it
2006 Oct 04
0
[PATCH,RFC 6/17] 32-on-64 shared info handling
....c
===================================================================
--- 2006-10-04.orig/xen/arch/x86/domain_build.c 2006-10-04 15:10:46.000000000 +0200
+++ 2006-10-04/xen/arch/x86/domain_build.c 2006-10-04 15:11:03.000000000 +0200
@@ -325,6 +325,7 @@ int construct_dom0(struct domain *d,
l1_pgentry_t gdt_l1e;
set_bit(_DOMF_compat, &d->domain_flags);
+ v->vcpu_info = (void *)&d->shared_info->compat.vcpu_info[0];
if ( nr_pages != (unsigned int)nr_pages )
nr_pages = UINT_MAX;
@@ -735,7 +736,7 @@ int construct_dom0(struct domain *d,...
2013 Dec 06
36
[V6 PATCH 0/7]: PVH dom0....
Hi,
V6: The only change from V5 is in patch #6:
- changed comment to reflect autoxlate
- removed a redundant ASSERT
- reworked logic a bit so that get_page_from_gfn() is called with NULL
for p2m type as before. arm has ASSERT wanting it to be NULL.
Tim: patch 4 needs your approval.
Daniel: patch 5 needs your approval.
These patches implement PVH dom0.
Patches 1 and 2
2012 Jun 08
18
[PATCH 0 of 4 RFC] Populate-on-demand: Check pages being returned by the balloon driver
Populate-on-demand: Check pages being returned by the balloon driver
This patch series is the second result of my work last summer on
decreasing fragmentation of superpages in a guests'' p2m when using
populate-on-demand.
This patch series is against 4.1; I''m posting it to get feedback on
the viability of getting a ported version of this patch into 4.2.
As with the previous
2012 Jan 25
26
[PATCH v4 00/23] Xenstore stub domain
Changes from v3:
- mini-os configuration files moved into stubdom/
- mini-os extra console support now a config option
- Fewer #ifdefs
- grant table setup uses hypercall bounce
- Xenstore stub domain syslog support re-enabled
Changes from v2:
- configuration support added to mini-os build system
- add mini-os support for conditionally compiling frontends, xenbus
-