| Message ID | 03b382a38c62b5431c63d00f9acffacf43b55c1d.1591017086.git.tamas.lengyel@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | VM forking | expand |
> -----Original Message----- > From: Xen-devel <xen-devel-bounces@lists.xenproject.org> On Behalf Of Tamas K Lengyel > Sent: 01 June 2020 14:22 > To: xen-devel@lists.xenproject.org > Cc: Ian Jackson <ian.jackson@eu.citrix.com>; Tamas K Lengyel <tamas.lengyel@intel.com>; Wei Liu > <wl@xen.org>; Roger Pau Monné <roger.pau@citrix.com> > Subject: [PATCH v19 for-4.14 02/13] tools/libxc: xc_memshr_fork with interrupts blocked > > Toolstack side for creating forks with interrupt injection blocked. > > Signed-off-by: Tamas K Lengyel <tamas.lengyel@intel.com> > Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> > Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Release-acked-by: Paul Durrant <paul@xen.org> > --- > tools/libxc/include/xenctrl.h | 3 ++- > tools/libxc/xc_memshr.c | 4 +++- > 2 files changed, 5 insertions(+), 2 deletions(-) > > diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h > index f9e17ae424..5eeee1de46 100644 > --- a/tools/libxc/include/xenctrl.h > +++ b/tools/libxc/include/xenctrl.h > @@ -2241,7 +2241,8 @@ int xc_memshr_range_share(xc_interface *xch, > int xc_memshr_fork(xc_interface *xch, > uint32_t source_domain, > uint32_t client_domain, > - bool allow_with_iommu); > + bool allow_with_iommu, > + bool block_interrupts); > > /* > * Note: this function is only intended to be used on short-lived forks that > diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c > index 2300cc7075..a6cfd7dccf 100644 > --- a/tools/libxc/xc_memshr.c > +++ b/tools/libxc/xc_memshr.c > @@ -240,7 +240,7 @@ int xc_memshr_debug_gref(xc_interface *xch, > } > > int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, > - bool allow_with_iommu) > + bool allow_with_iommu, bool block_interrupts) > { > xen_mem_sharing_op_t mso; > > @@ -251,6 +251,8 @@ int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, > > if ( allow_with_iommu ) > mso.u.fork.flags |= XENMEM_FORK_WITH_IOMMU_ALLOWED; > + if ( block_interrupts ) > + mso.u.fork.flags |= XENMEM_FORK_BLOCK_INTERRUPTS; > > return xc_memshr_memop(xch, domid, &mso); > } > -- > 2.25.1 >
On Mon, Jun 01, 2020 at 06:21:36AM -0700, Tamas K Lengyel wrote: > Toolstack side for creating forks with interrupt injection blocked. > > Signed-off-by: Tamas K Lengyel <tamas.lengyel@intel.com> > Reviewed-by: Roger Pau Monné <roger.pau@citrix.com> > Acked-by: Ian Jackson <ian.jackson@eu.citrix.com> Acked-by: Wei Liu <wl@xen.org>
diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h index f9e17ae424..5eeee1de46 100644 --- a/tools/libxc/include/xenctrl.h +++ b/tools/libxc/include/xenctrl.h @@ -2241,7 +2241,8 @@ int xc_memshr_range_share(xc_interface *xch, int xc_memshr_fork(xc_interface *xch, uint32_t source_domain, uint32_t client_domain, - bool allow_with_iommu); + bool allow_with_iommu, + bool block_interrupts); /* * Note: this function is only intended to be used on short-lived forks that diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c index 2300cc7075..a6cfd7dccf 100644 --- a/tools/libxc/xc_memshr.c +++ b/tools/libxc/xc_memshr.c @@ -240,7 +240,7 @@ int xc_memshr_debug_gref(xc_interface *xch, } int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, - bool allow_with_iommu) + bool allow_with_iommu, bool block_interrupts) { xen_mem_sharing_op_t mso; @@ -251,6 +251,8 @@ int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, if ( allow_with_iommu ) mso.u.fork.flags |= XENMEM_FORK_WITH_IOMMU_ALLOWED; + if ( block_interrupts ) + mso.u.fork.flags |= XENMEM_FORK_BLOCK_INTERRUPTS; return xc_memshr_memop(xch, domid, &mso); }