* [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio
@ 2016-05-27 16:06 Julien Grall
2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Julien Grall @ 2016-05-27 16:06 UTC (permalink / raw)
To: xen-devel
Cc: sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap,
tim, Julien Grall, shannon.zhao, JBeulich
Hello all,
This series is based on the thread [1]. To allow future extension, the new
space dev_mmio should have all unused fields marked as reserved.
This series is candidate for Xen 4.7, the first patch ensure a clean ABI
for the new space which will allow future extension.
See in each patch for all the changes.
Regards,
[1] http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg02328.html
Julien Grall (2):
xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' as reserved for
dev_mmio
xen/arm: Document the behavior of XENMAPSPACE_dev_mmio
xen/arch/arm/mm.c | 9 +++++++--
xen/arch/x86/mm.c | 4 ++--
xen/common/compat/memory.c | 7 +++++++
xen/common/memory.c | 12 +++++++++---
xen/include/public/memory.h | 16 ++++++++++++++--
xen/include/xen/mm.h | 3 ++-
6 files changed, 41 insertions(+), 10 deletions(-)
--
1.9.1
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Xen-devel@lists.xen.org
http://lists.xen.org/xen-devel
^ permalink raw reply [flat|nested] 6+ messages in thread* [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' as reserved for dev_mmio 2016-05-27 16:06 [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Julien Grall @ 2016-05-27 16:06 ` Julien Grall 2016-05-30 11:29 ` Stefano Stabellini 2016-05-30 11:53 ` Jan Beulich 2016-05-27 16:06 ` [for-4.7 v3 2/2] xen/arm: Document the behavior of XENMAPSPACE_dev_mmio Julien Grall 2016-05-30 11:55 ` [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Wei Liu 2 siblings, 2 replies; 6+ messages in thread From: Julien Grall @ 2016-05-27 16:06 UTC (permalink / raw) To: xen-devel Cc: sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap, tim, Julien Grall, shannon.zhao, JBeulich The field 'foreign_id' is not used when the space is dev_mmio. As the space is not yet part of the stable ABI, the field is marked as reserved for future use. The value should always be 0, other values will return -EOPNOTSUPP. Signed-off-by: Julien Grall <julien.grall@arm.com> --- Changes in v3: - s/add_to_physmap_batch_extra/xen_add_to_physmap_batch_extra/ - Add a comment in compat Changes in v2: - Return -EOPNOTSUPP rather than -ENOSYS - Introduce a union in the structure xenmem_add_to_physmap_batch --- xen/arch/arm/mm.c | 9 +++++++-- xen/arch/x86/mm.c | 4 ++-- xen/common/compat/memory.c | 7 +++++++ xen/common/memory.c | 12 +++++++++--- xen/include/public/memory.h | 10 +++++++++- xen/include/xen/mm.h | 3 ++- 6 files changed, 36 insertions(+), 9 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index b46e23e..0aa8092 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -1047,7 +1047,7 @@ void share_xen_page_with_privileged_guests( int xenmem_add_to_physmap_one( struct domain *d, unsigned int space, - domid_t foreign_domid, + union xen_add_to_physmap_batch_extra extra, unsigned long idx, xen_pfn_t gpfn) { @@ -1103,7 +1103,8 @@ int xenmem_add_to_physmap_one( { struct domain *od; p2m_type_t p2mt; - od = rcu_lock_domain_by_any_id(foreign_domid); + + od = rcu_lock_domain_by_any_id(extra.foreign_domid); if ( od == NULL ) return -ESRCH; @@ -1143,6 +1144,10 @@ int xenmem_add_to_physmap_one( break; } case XENMAPSPACE_dev_mmio: + /* extra should be 0. Reserved for future use. */ + if ( extra.res0 ) + return -EOPNOTSUPP; + rc = map_dev_mmio_region(d, gpfn, 1, idx); return rc; diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c index 03a4d5b..8d10a3e 100644 --- a/xen/arch/x86/mm.c +++ b/xen/arch/x86/mm.c @@ -4769,7 +4769,7 @@ static int handle_iomem_range(unsigned long s, unsigned long e, void *p) int xenmem_add_to_physmap_one( struct domain *d, unsigned int space, - domid_t foreign_domid, + union xen_add_to_physmap_batch_extra extra, unsigned long idx, xen_pfn_t gpfn) { @@ -4830,7 +4830,7 @@ int xenmem_add_to_physmap_one( break; } case XENMAPSPACE_gmfn_foreign: - return p2m_add_foreign(d, idx, gpfn, foreign_domid); + return p2m_add_foreign(d, idx, gpfn, extra.foreign_domid); default: break; } diff --git a/xen/common/compat/memory.c b/xen/common/compat/memory.c index 19a914d..20c7671 100644 --- a/xen/common/compat/memory.c +++ b/xen/common/compat/memory.c @@ -253,6 +253,13 @@ int compat_memory_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) compat) unsigned int size = cmp.atpb.size; xen_ulong_t *idxs = (void *)(nat.atpb + 1); xen_pfn_t *gpfns = (void *)(idxs + limit); + /* + * The union will always be 16-bit width. So it is not + * necessary to have the exact field which correspond to the + * space. + */ + enum XLAT_add_to_physmap_batch_u u = + XLAT_add_to_physmap_batch_u_res0; if ( copy_from_guest(&cmp.atpb, compat, 1) || !compat_handle_okay(cmp.atpb.idxs, size) || diff --git a/xen/common/memory.c b/xen/common/memory.c index 644f81a..ccc6436 100644 --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -639,9 +639,15 @@ static int xenmem_add_to_physmap(struct domain *d, { unsigned int done = 0; long rc = 0; + union xen_add_to_physmap_batch_extra extra; + + if ( xatp->space != XENMAPSPACE_gmfn_foreign ) + extra.res0 = 0; + else + extra.foreign_domid = DOMID_INVALID; if ( xatp->space != XENMAPSPACE_gmfn_range ) - return xenmem_add_to_physmap_one(d, xatp->space, DOMID_INVALID, + return xenmem_add_to_physmap_one(d, xatp->space, extra, xatp->idx, xatp->gpfn); if ( xatp->size < start ) @@ -658,7 +664,7 @@ static int xenmem_add_to_physmap(struct domain *d, while ( xatp->size > done ) { - rc = xenmem_add_to_physmap_one(d, xatp->space, DOMID_INVALID, + rc = xenmem_add_to_physmap_one(d, xatp->space, extra, xatp->idx, xatp->gpfn); if ( rc < 0 ) break; @@ -719,7 +725,7 @@ static int xenmem_add_to_physmap_batch(struct domain *d, } rc = xenmem_add_to_physmap_one(d, xatpb->space, - xatpb->foreign_domid, + xatpb->u, idx, gpfn); if ( unlikely(__copy_to_guest_offset(xatpb->errs, 0, &rc, 1)) ) diff --git a/xen/include/public/memory.h b/xen/include/public/memory.h index fe52ee1..5f7e0d2 100644 --- a/xen/include/public/memory.h +++ b/xen/include/public/memory.h @@ -259,7 +259,15 @@ struct xen_add_to_physmap_batch { /* Number of pages to go through */ uint16_t size; - domid_t foreign_domid; /* IFF gmfn_foreign */ + +#if __XEN_INTERFACE_VERSION__ < 0x00040700 + domid_t foreign_domid; /* IFF gmfn_foreign. Should be 0 for other spaces. */ +#else + union xen_add_to_physmap_batch_extra { + domid_t foreign_domid; /* gmfn_foreign */ + uint16_t res0; /* All the other spaces. Should be 0 */ + } u; +#endif /* Indexes into space being mapped. */ XEN_GUEST_HANDLE(xen_ulong_t) idxs; diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h index d4721fc..3cf646a 100644 --- a/xen/include/xen/mm.h +++ b/xen/include/xen/mm.h @@ -50,6 +50,7 @@ #include <xen/list.h> #include <xen/spinlock.h> #include <xen/typesafe.h> +#include <public/memory.h> TYPE_SAFE(unsigned long, mfn); #define PRI_mfn "05lx" @@ -505,7 +506,7 @@ void scrub_one_page(struct page_info *); #endif int xenmem_add_to_physmap_one(struct domain *d, unsigned int space, - domid_t foreign_domid, + union xen_add_to_physmap_batch_extra extra, unsigned long idx, xen_pfn_t gpfn); /* Returns 1 on success, 0 on error, negative if the ring -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' as reserved for dev_mmio 2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall @ 2016-05-30 11:29 ` Stefano Stabellini 2016-05-30 11:53 ` Jan Beulich 1 sibling, 0 replies; 6+ messages in thread From: Stefano Stabellini @ 2016-05-30 11:29 UTC (permalink / raw) To: Julien Grall Cc: tim, sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap, xen-devel, shannon.zhao, JBeulich On Fri, 27 May 2016, Julien Grall wrote: > The field 'foreign_id' is not used when the space is dev_mmio. As the > space is not yet part of the stable ABI, the field is marked as reserved > for future use. > > The value should always be 0, other values will return -EOPNOTSUPP. > > Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> > Changes in v3: > - s/add_to_physmap_batch_extra/xen_add_to_physmap_batch_extra/ > - Add a comment in compat > > Changes in v2: > - Return -EOPNOTSUPP rather than -ENOSYS > - Introduce a union in the structure xenmem_add_to_physmap_batch > --- > xen/arch/arm/mm.c | 9 +++++++-- > xen/arch/x86/mm.c | 4 ++-- > xen/common/compat/memory.c | 7 +++++++ > xen/common/memory.c | 12 +++++++++--- > xen/include/public/memory.h | 10 +++++++++- > xen/include/xen/mm.h | 3 ++- > 6 files changed, 36 insertions(+), 9 deletions(-) > > diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c > index b46e23e..0aa8092 100644 > --- a/xen/arch/arm/mm.c > +++ b/xen/arch/arm/mm.c > @@ -1047,7 +1047,7 @@ void share_xen_page_with_privileged_guests( > int xenmem_add_to_physmap_one( > struct domain *d, > unsigned int space, > - domid_t foreign_domid, > + union xen_add_to_physmap_batch_extra extra, > unsigned long idx, > xen_pfn_t gpfn) > { > @@ -1103,7 +1103,8 @@ int xenmem_add_to_physmap_one( > { > struct domain *od; > p2m_type_t p2mt; > - od = rcu_lock_domain_by_any_id(foreign_domid); > + > + od = rcu_lock_domain_by_any_id(extra.foreign_domid); > if ( od == NULL ) > return -ESRCH; > > @@ -1143,6 +1144,10 @@ int xenmem_add_to_physmap_one( > break; > } > case XENMAPSPACE_dev_mmio: > + /* extra should be 0. Reserved for future use. */ > + if ( extra.res0 ) > + return -EOPNOTSUPP; > + > rc = map_dev_mmio_region(d, gpfn, 1, idx); > return rc; > > diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c > index 03a4d5b..8d10a3e 100644 > --- a/xen/arch/x86/mm.c > +++ b/xen/arch/x86/mm.c > @@ -4769,7 +4769,7 @@ static int handle_iomem_range(unsigned long s, unsigned long e, void *p) > int xenmem_add_to_physmap_one( > struct domain *d, > unsigned int space, > - domid_t foreign_domid, > + union xen_add_to_physmap_batch_extra extra, > unsigned long idx, > xen_pfn_t gpfn) > { > @@ -4830,7 +4830,7 @@ int xenmem_add_to_physmap_one( > break; > } > case XENMAPSPACE_gmfn_foreign: > - return p2m_add_foreign(d, idx, gpfn, foreign_domid); > + return p2m_add_foreign(d, idx, gpfn, extra.foreign_domid); > default: > break; > } > diff --git a/xen/common/compat/memory.c b/xen/common/compat/memory.c > index 19a914d..20c7671 100644 > --- a/xen/common/compat/memory.c > +++ b/xen/common/compat/memory.c > @@ -253,6 +253,13 @@ int compat_memory_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) compat) > unsigned int size = cmp.atpb.size; > xen_ulong_t *idxs = (void *)(nat.atpb + 1); > xen_pfn_t *gpfns = (void *)(idxs + limit); > + /* > + * The union will always be 16-bit width. So it is not > + * necessary to have the exact field which correspond to the > + * space. > + */ > + enum XLAT_add_to_physmap_batch_u u = > + XLAT_add_to_physmap_batch_u_res0; > > if ( copy_from_guest(&cmp.atpb, compat, 1) || > !compat_handle_okay(cmp.atpb.idxs, size) || > diff --git a/xen/common/memory.c b/xen/common/memory.c > index 644f81a..ccc6436 100644 > --- a/xen/common/memory.c > +++ b/xen/common/memory.c > @@ -639,9 +639,15 @@ static int xenmem_add_to_physmap(struct domain *d, > { > unsigned int done = 0; > long rc = 0; > + union xen_add_to_physmap_batch_extra extra; > + > + if ( xatp->space != XENMAPSPACE_gmfn_foreign ) > + extra.res0 = 0; > + else > + extra.foreign_domid = DOMID_INVALID; > > if ( xatp->space != XENMAPSPACE_gmfn_range ) > - return xenmem_add_to_physmap_one(d, xatp->space, DOMID_INVALID, > + return xenmem_add_to_physmap_one(d, xatp->space, extra, > xatp->idx, xatp->gpfn); > > if ( xatp->size < start ) > @@ -658,7 +664,7 @@ static int xenmem_add_to_physmap(struct domain *d, > > while ( xatp->size > done ) > { > - rc = xenmem_add_to_physmap_one(d, xatp->space, DOMID_INVALID, > + rc = xenmem_add_to_physmap_one(d, xatp->space, extra, > xatp->idx, xatp->gpfn); > if ( rc < 0 ) > break; > @@ -719,7 +725,7 @@ static int xenmem_add_to_physmap_batch(struct domain *d, > } > > rc = xenmem_add_to_physmap_one(d, xatpb->space, > - xatpb->foreign_domid, > + xatpb->u, > idx, gpfn); > > if ( unlikely(__copy_to_guest_offset(xatpb->errs, 0, &rc, 1)) ) > diff --git a/xen/include/public/memory.h b/xen/include/public/memory.h > index fe52ee1..5f7e0d2 100644 > --- a/xen/include/public/memory.h > +++ b/xen/include/public/memory.h > @@ -259,7 +259,15 @@ struct xen_add_to_physmap_batch { > > /* Number of pages to go through */ > uint16_t size; > - domid_t foreign_domid; /* IFF gmfn_foreign */ > + > +#if __XEN_INTERFACE_VERSION__ < 0x00040700 > + domid_t foreign_domid; /* IFF gmfn_foreign. Should be 0 for other spaces. */ > +#else > + union xen_add_to_physmap_batch_extra { > + domid_t foreign_domid; /* gmfn_foreign */ > + uint16_t res0; /* All the other spaces. Should be 0 */ > + } u; > +#endif > > /* Indexes into space being mapped. */ > XEN_GUEST_HANDLE(xen_ulong_t) idxs; > diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h > index d4721fc..3cf646a 100644 > --- a/xen/include/xen/mm.h > +++ b/xen/include/xen/mm.h > @@ -50,6 +50,7 @@ > #include <xen/list.h> > #include <xen/spinlock.h> > #include <xen/typesafe.h> > +#include <public/memory.h> > > TYPE_SAFE(unsigned long, mfn); > #define PRI_mfn "05lx" > @@ -505,7 +506,7 @@ void scrub_one_page(struct page_info *); > #endif > > int xenmem_add_to_physmap_one(struct domain *d, unsigned int space, > - domid_t foreign_domid, > + union xen_add_to_physmap_batch_extra extra, > unsigned long idx, xen_pfn_t gpfn); > > /* Returns 1 on success, 0 on error, negative if the ring > -- > 1.9.1 > _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' as reserved for dev_mmio 2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall 2016-05-30 11:29 ` Stefano Stabellini @ 2016-05-30 11:53 ` Jan Beulich 1 sibling, 0 replies; 6+ messages in thread From: Jan Beulich @ 2016-05-30 11:53 UTC (permalink / raw) To: Julien Grall Cc: tim, sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap, xen-devel, shannon.zhao >>> On 27.05.16 at 18:06, <julien.grall@arm.com> wrote: > The field 'foreign_id' is not used when the space is dev_mmio. As the > space is not yet part of the stable ABI, the field is marked as reserved > for future use. > > The value should always be 0, other values will return -EOPNOTSUPP. > > Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Jan Beulich <jbeulich@suse.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
* [for-4.7 v3 2/2] xen/arm: Document the behavior of XENMAPSPACE_dev_mmio 2016-05-27 16:06 [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Julien Grall 2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall @ 2016-05-27 16:06 ` Julien Grall 2016-05-30 11:55 ` [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Wei Liu 2 siblings, 0 replies; 6+ messages in thread From: Julien Grall @ 2016-05-27 16:06 UTC (permalink / raw) To: xen-devel Cc: sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap, tim, Julien Grall, shannon.zhao, Jan Beulich Currently, XENMAPSPACE_dev_mmio maps MMIO regions using one of the most restrictive memory attribute (Device-nGnRE). Signed-off-by: Julien Grall <julien.grall@arm.com> Acked-by: Stefano Stabellini <sstabellini@kernel.org> Acked-by: Jan Beulich <jbeulich@suse.com> --- Changes in v3: - Update comment - Add Stefano's Jan's ack Changes in v2: - s/Device_nGnRE/Device-nGnRE/ to match the spec - Update the comment to mention the name for ARMv7. --- xen/include/public/memory.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/xen/include/public/memory.h b/xen/include/public/memory.h index 5f7e0d2..29ec571 100644 --- a/xen/include/public/memory.h +++ b/xen/include/public/memory.h @@ -220,7 +220,11 @@ DEFINE_XEN_GUEST_HANDLE(xen_machphys_mapping_t); #define XENMAPSPACE_gmfn_range 3 /* GMFN range, XENMEM_add_to_physmap only. */ #define XENMAPSPACE_gmfn_foreign 4 /* GMFN from another dom, * XENMEM_add_to_physmap_batch only. */ -#define XENMAPSPACE_dev_mmio 5 /* device mmio region */ +#define XENMAPSPACE_dev_mmio 5 /* device mmio region + ARM only; the region is mapped in + Stage-2 using the memory attribute + "Device-nGnRE" (previously named + "Device" on ARMv7) */ /* ` } */ /* -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio 2016-05-27 16:06 [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Julien Grall 2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall 2016-05-27 16:06 ` [for-4.7 v3 2/2] xen/arm: Document the behavior of XENMAPSPACE_dev_mmio Julien Grall @ 2016-05-30 11:55 ` Wei Liu 2 siblings, 0 replies; 6+ messages in thread From: Wei Liu @ 2016-05-30 11:55 UTC (permalink / raw) To: Julien Grall Cc: tim, sstabellini, wei.liu2, andrew.cooper3, Ian.Jackson, george.dunlap, xen-devel, shannon.zhao, JBeulich On Fri, May 27, 2016 at 05:06:19PM +0100, Julien Grall wrote: > Hello all, > > This series is based on the thread [1]. To allow future extension, the new > space dev_mmio should have all unused fields marked as reserved. > > This series is candidate for Xen 4.7, the first patch ensure a clean ABI > for the new space which will allow future extension. > > See in each patch for all the changes. > > Regards, > > [1] http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg02328.html > > Julien Grall (2): > xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' as reserved for > dev_mmio > xen/arm: Document the behavior of XENMAPSPACE_dev_mmio > > xen/arch/arm/mm.c | 9 +++++++-- > xen/arch/x86/mm.c | 4 ++-- > xen/common/compat/memory.c | 7 +++++++ > xen/common/memory.c | 12 +++++++++--- > xen/include/public/memory.h | 16 ++++++++++++++-- > xen/include/xen/mm.h | 3 ++- > 6 files changed, 41 insertions(+), 10 deletions(-) > > -- > 1.9.1 > Release-acked-by: Wei Liu <wei.liu2@citrix.com> Thanks everyone. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2016-05-30 11:55 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-05-27 16:06 [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Julien Grall 2016-05-27 16:06 ` [for-4.7 v3 1/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id' " Julien Grall 2016-05-30 11:29 ` Stefano Stabellini 2016-05-30 11:53 ` Jan Beulich 2016-05-27 16:06 ` [for-4.7 v3 2/2] xen/arm: Document the behavior of XENMAPSPACE_dev_mmio Julien Grall 2016-05-30 11:55 ` [for-4.7 v3 0/2] xen: XENMEM_add_to_physmap_batch: Mark 'foreign_id" as reserved for dev_mmio Wei Liu
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