On Tue, Sep 18, 2012 at 02:57:05PM +0100, Stefano Stabellini wrote:
> On Tue, 18 Sep 2012, Arnd Bergmann wrote:
> > On Monday 17 September 2012, Stefano Stabellini wrote:
> >
> > > I am also attaching to this email the dts'es that I am currently using
> > > for dom0 and domU: vexpress-v2p-ca15-tc1
On Tue, Sep 18, 2012 at 12:34:29PM +, Arnd Bergmann wrote:
> On Monday 17 September 2012, Stefano Stabellini wrote:
>
> > I am also attaching to this email the dts'es that I am currently using
> > for dom0 and domU: vexpress-v2p-ca15-tc1.dts (that includes
> > vexpress-v2m-rs1-rtsm.dtsi) is th
On Mon, Sep 17, 2012 at 02:45:00PM +0100, Stefano Stabellini wrote:
> On Mon, 17 Sep 2012, Konrad Rzeszutek Wilk wrote:
> > On Fri, Sep 14, 2012 at 12:13:12PM +0100, Stefano Stabellini wrote:
> > > bind_evtchn_to_irqhandler can legitimately return 0 (irq 0): it is
On Mon, Sep 17, 2012 at 04:07:37PM +0400, Sergei Shtylyov wrote:
> Hello.
>
> On 17-09-2012 14:57, Stefano Stabellini wrote:
>
> >>>Changes in v2:
>
> >>>- mark Xen guest support on ARM as EXPERIMENTAL.
>
> >>>Signed-off-by: St
On Mon, Sep 17, 2012 at 12:05:59PM +0100, Stefano Stabellini wrote:
> On Fri, 14 Sep 2012, Konrad Rzeszutek Wilk wrote:
> > On Fri, Sep 14, 2012 at 12:13:12PM +0100, Stefano Stabellini wrote:
> > > bind_evtchn_to_irqhandler can legitimately return 0 (irq 0): it is
d event channel.
>
>
> Changes in v4:
>
> - do not xs_reset_watches on dom0.
>
>
> Changes in v2:
>
> - refactor xenbus_init.
>
> Signed-off-by: Stefano Stabellini
Acked-by: Konrad Rzeszutek Wilk
If you would like I can also carry this in my tree
On Fri, Sep 14, 2012 at 12:12:59PM +0100, Stefano Stabellini wrote:
> Hi all,
> this patch series implements Xen support for ARMv7 with virtualization
> extensions. It allows a Linux guest to boot as dom0 and
> as domU on Xen on ARM. PV console, disk and network frontends and
> backends are all wo
On Fri, Sep 14, 2012 at 12:13:17PM +0100, Stefano Stabellini wrote:
> Compile events.c on ARM.
> Parse, map and enable the IRQ to get event notifications from the device
> tree (node "/xen").
>
> Signed-off-by: Stefano Stabellini
Acked-by: Konrad Rzeszutek Wilk
>
ersions."
>
> Note: this patch should be already in Konrad's tree, it is here just for
> convenience.
>
> Changes in v2:
>
> - remove erroneous comment in the commit message.
>
> Signed-off-by: Stefano Stabellini
Acked-by: Konrad Rzeszutek Wilk
.. and I
On Fri, Sep 14, 2012 at 12:13:21PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
> Acked-by: Konrad Rzeszutek Wilk
So this should go through Jen's tree or at least get his Ack.
But doing all of these patches seperatly is painfull - and remembering
where they
On Fri, Sep 14, 2012 at 12:13:16PM +0100, Stefano Stabellini wrote:
> Initialize the grant table mapping at the address specified at index 0
> in the DT under the /xen node.
> After the grant table is initialized, call xenbus_probe (if not dom0).
So we don't really care about the grant's size then
On Fri, Sep 14, 2012 at 12:13:26PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
> CC: Arnd Bergmann
> CC: Konrad Rzeszutek Wilk
Acked-by: Konrad Rzeszutek Wilk
> ---
> MAINTAINERS |7 +++
> 1 files changed, 7 insertions(+), 0 deletions(-)
On Fri, Sep 14, 2012 at 12:13:09PM +0100, Stefano Stabellini wrote:
> Check for a node in the device tree compatible with "xen,xen", if it is
> present set xen_domain_type to XEN_HVM_DOMAIN and continue
> initialization.
>
> Map the real shared info page using XENMEM_add_to_physmap with
> XENMAPSP
to apic_physbase.
>
>
> Signed-off-by: Stefano Stabellini
Acked-by: Konrad Rzeszutek Wilk
for the generic parts; all other:
Reviewed-by: Konrad Rzeszutek Wilk
> ---
> arch/arm/include/asm/xen/interface.h |8 ++--
> arch/ia64/include/asm/xen/interface.h |1 +
>
On Fri, Sep 14, 2012 at 12:13:12PM +0100, Stefano Stabellini wrote:
> bind_evtchn_to_irqhandler can legitimately return 0 (irq 0): it is not
> an error.
>
> If Linux is running as an HVM domain and is running as Dom0, use
> xenstored_local_init to initialize the xenstore page and event channel.
L
On Fri, Sep 14, 2012 at 12:13:08PM +0100, Stefano Stabellini wrote:
> Add a doc to describe the Xen ARM device tree bindings
>
>
> Changes in v4:
>
> - "xen,xen" should be last as it is less specific;
> - update reg property using 2 address-cells and 2 size-cells.
>
>
> Signed-off-by: Stefano
s, even if
> at the moment is unused;
> - use ldm instead of pop;
> - fix up comments.
>
>
> Signed-off-by: Stefano Stabellini
Reviewed-by: Konrad Rzeszutek Wilk
.. since this is all in non-x86 and non-Xen generic parts so cannot
provide you with an Ack :-)
> ---
> arc
> > Right, the original patch didn't break anything with PV domains. The case
> > it doesn't handle is an HVM initial domain with an already-running
> > Xenstore domain; I think this applies both to ARM and hybrid/PVH on x86.
> > In that case, usage would be set to LOCAL instead of HVM.
>
>
> Rig
On Mon, Aug 06, 2012 at 03:27:26PM +0100, Stefano Stabellini wrote:
> From: Ian Campbell
>
> Do not apply!
OK.
>
> This is a simple, hacky implementation of xen_remap_domain_mfn_range,
> using XENMAPSPACE_gmfn_foreign.
>
> It should use same interface as hybrid x86.
Yeah, Mukesh - can you sha
On Mon, Aug 06, 2012 at 03:27:24PM +0100, Stefano Stabellini wrote:
> Update struct xen_add_to_physmap to be in sync with Xen's version of the
> structure.
> The size field was introduced by:
>
> changeset: 24164:707d27fe03e7
> user:Jean Guyader
> date:Fri Nov 18 13:42:08 2011 +
On Mon, Aug 06, 2012 at 03:27:23PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
OK. Looks good.
> ---
> arch/arm/include/asm/xen/hypercall.h | 19 +++
> drivers/net/xen-netback/netback.c|1 +
> drivers/net/xen-netfront.c |1 +
> 3 f
On Mon, Aug 06, 2012 at 03:27:22PM +0100, Stefano Stabellini wrote:
OK. Looks good.
> Signed-off-by: Stefano Stabellini
> ---
> drivers/block/xen-blkback/blkback.c |1 +
> include/xen/interface/io/protocols.h |3 +++
> 2 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/d
On Mon, Aug 06, 2012 at 03:27:21PM +0100, Stefano Stabellini wrote:
> This patch removes the "return -ENOSYS" for auto_translated_physmap
> guests from privcmd_mmap, thus it allows ARM guests to issue privcmd
> mmap calls. However privcmd mmap calls are still going to fail for HVM
> and hybrid gues
On Mon, Aug 06, 2012 at 03:27:20PM +0100, Stefano Stabellini wrote:
> Only until we get the balloon driver to work.
OK. Acked-by be.
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/xen/enlighten.c | 18 ++
> 1 files changed, 18 insertions(+), 0 deletions(-)
>
> diff --
On Mon, Aug 06, 2012 at 03:27:18PM +0100, Stefano Stabellini wrote:
> Compile events.c on ARM.
> Parse, map and enable the IRQ to get event notifications from the device
> tree (node "/xen").
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/include/asm/xen/events.h | 18 +
On Mon, Aug 06, 2012 at 03:27:19PM +0100, Stefano Stabellini wrote:
> Reset the IRQ_NOAUTOEN and IRQ_NOREQUEST flags that are enabled by
> default on ARM. If IRQ_NOAUTOEN is set, __setup_irq doesn't call
> irq_startup, that is responsible for calling irq_unmask at startup time.
> As a result event
On Mon, Aug 06, 2012 at 03:27:16PM +0100, Stefano Stabellini wrote:
> Use Xen features to figure out if we are privileged.
>
> XENFEAT_dom0 was introduced by 23735 in xen-unstable.hg.
Looks good.
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/xen/enlighten.c |7 +++
>
On Mon, Aug 06, 2012 at 03:27:15PM +0100, Stefano Stabellini wrote:
> Changes in v2:
>
> - mark Xen guest support on ARM as EXPERIMENTAL.
OK. Looks good.
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/Kconfig | 10 ++
> 1 files changed, 10 insertions(+), 0 deletions(-)
>
> d
On Mon, Aug 06, 2012 at 03:27:14PM +0100, Stefano Stabellini wrote:
> Changes in v2:
>
> - make pci.o depend on CONFIG_PCI and acpi.o depend on CONFIG_ACPI.
>
> Signed-off-by: Stefano Stabellini
Looks good.
> ---
> drivers/xen/Makefile | 11 ---
> 1 files changed, 8 insertions(+), 3
On Mon, Aug 06, 2012 at 03:27:13PM +0100, Stefano Stabellini wrote:
> bind_evtchn_to_irqhandler can legitimately return 0 (irq 0): it is not
> an error.
>
> If Linux is running as an HVM domain and is running as Dom0, use
> xenstored_local_init to initialize the xenstore page and event channel.
>
On Mon, Aug 06, 2012 at 03:27:12PM +0100, Stefano Stabellini wrote:
> All the original Xen headers have xen_ulong_t as unsigned long type, however
> when they have been imported in Linux, xen_ulong_t has been replaced with
> unsigned long. That might work for x86 and ia64 but it does not for arm.
>
On Mon, Aug 06, 2012 at 03:27:11PM +0100, Stefano Stabellini wrote:
> All the original Xen headers have xen_pfn_t as mfn and pfn type, however
> when they have been imported in Linux, xen_pfn_t has been replaced with
> unsigned long. That might work for x86 and ia64 but it does not for arm.
> Bring
On Mon, Aug 06, 2012 at 03:27:10PM +0100, Stefano Stabellini wrote:
> Check for a "/xen" node in the device tree, if it is present set
> xen_domain_type to XEN_HVM_DOMAIN and continue initialization.
>
> Map the real shared info page using XENMEM_add_to_physmap with
> XENMAPSPACE_shared_info.
>
>
On Mon, Aug 06, 2012 at 03:27:09PM +0100, Stefano Stabellini wrote:
> Changes in v2:
> - remove pvclock hack;
> - remove include linux/types.h from xen/interface/xen.h.
I think I can take in my tree now right by itself right? Or do
you want to keep this in your patchqueue? If so, Ack from me.
>
>
On Mon, Aug 06, 2012 at 03:27:07PM +0100, Stefano Stabellini wrote:
> sync_bitops functions are equivalent to the SMP implementation of the
> original functions, independently from CONFIG_SMP being defined.
>
> We need them because _set_bit etc are not SMP safe if !CONFIG_SMP. But
> under Xen you
On Mon, Aug 06, 2012 at 03:27:08PM +0100, Stefano Stabellini wrote:
> Changes in v2:
>
> - return -ENOSYS rather than -1.
Ack.
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/xen/Makefile |2 +-
> arch/arm/xen/grant-table.c | 53
>
On Mon, Aug 06, 2012 at 03:27:06PM +0100, Stefano Stabellini wrote:
> ARM Xen guests always use paging in hardware, like PV on HVM guests in
> the X86 world.
>
> Signed-off-by: Stefano Stabellini
Ack.. with one nitpick
> +/* XXX: this shouldn't be here */
.. but its here b/c the frontend drive
On Mon, Aug 06, 2012 at 03:27:04PM +0100, Stefano Stabellini wrote:
> - Basic hypervisor.h and interface.h definitions.
> - Skeleton enlighten.c, set xen_start_info to an empty struct.
> - Make xen_initial_domain dependent on the SIF_PRIVILIGED_BIT.
>
> The new code only compiles when CONFIG_XEN i
On Thu, Aug 02, 2012 at 08:35:51AM +0100, Ian Campbell wrote:
> On Wed, 2012-08-01 at 19:27 +0100, Rob Herring wrote:
> > On 07/26/2012 10:33 AM, Stefano Stabellini wrote:
> > > - Basic hypervisor.h and interface.h definitions.
> > > - Skelethon enlighten.c, set xen_start_info to an empty struct.
>
On Thu, Jul 26, 2012 at 04:34:06PM +0100, Stefano Stabellini wrote:
> From: Ian Campbell
>
> Do not apply!
Mukesh, I believe this is similar to what you had in mind.
>
> This is a simple, hacky implementation of xen_remap_domain_mfn_range,
> using XENMAPSPACE_gmfn_foreign.
>
> It should use s
On Thu, Jul 26, 2012 at 04:34:05PM +0100, Stefano Stabellini wrote:
> On ARM all guests are HVM guests, including Dom0.
> Allow dom0_write_console to be called by an HVM domain.
Um, but xen_hvm_domain() != xen_pv_domain() so won't this return without
printing anything?
>
> Signed-off-by: Stefano
On Thu, Jul 26, 2012 at 04:34:03PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
Should the maintainer of the v2m be CC-ed here?
This looks like a bug-fix of itself?
> ---
> arch/arm/mach-vexpress/v2m.c | 11 ++-
> 1 files changed, 6 insertions(+), 5 deletions(-
On Thu, Jul 26, 2012 at 04:34:02PM +0100, Stefano Stabellini wrote:
> Update struct xen_add_to_physmap to be in sync with Xen's version of the
> structure.
> The size field was introduced by:
>
> changeset: 24164:707d27fe03e7
> user:Jean Guyader
> date:Fri Nov 18 13:42:08 2011 +
On Thu, Jul 26, 2012 at 04:34:00PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
> ---
> drivers/block/xen-blkback/blkback.c |1 +
> include/xen/interface/io/protocols.h |3 +++
> 2 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/block/xen-
On Fri, Jul 27, 2012 at 03:10:13PM +0100, Stefano Stabellini wrote:
> On Fri, 27 Jul 2012, Jan Beulich wrote:
> > >>> On 26.07.12 at 17:33, Stefano Stabellini
> > >>> wrote:
> > > In order for privcmd mmap to work correctly, xen_remap_domain_mfn_range
> > > needs to be implemented for HVM guests.
On Thu, Jul 26, 2012 at 04:33:57PM +0100, Stefano Stabellini wrote:
> Compile events.c on ARM.
> Parse, map and enable the IRQ to get event notifications from the device
> tree (node "/xen").
>
> On ARM Linux irqs are not enabled by default:
>
> - call enable_percpu_irq for xen_events_irq (driver
On Thu, Jul 26, 2012 at 04:33:56PM +0100, Stefano Stabellini wrote:
> Initialize the grant table mapping at the address specified at index 0
> in the DT under the /xen node.
Is it always index 0? If so, should it have a #define for the
other index values?
> After the grant table is initialized, c
On Fri, Jul 27, 2012 at 03:33:50PM +0100, Ian Campbell wrote:
> On Fri, 2012-07-27 at 15:25 +0100, Stefano Stabellini wrote:
> > On Fri, 27 Jul 2012, Ian Campbell wrote:
> > > On Thu, 2012-07-26 at 16:33 +0100, Stefano Stabellini wrote:
> > > > Use Xen features to figure out if we are privileged.
>
On Thu, Jul 26, 2012 at 04:33:54PM +0100, Stefano Stabellini wrote:
> We used to rely on a core_initcall to initialize Xen on ARM, however
> core_initcalls are actually called after early consoles are initialized.
> That means that hvc_xen.c is going to be initialized before Xen.
>
> Given the lac
On Fri, Jul 27, 2012 at 10:28:25AM +0100, Ian Campbell wrote:
> On Thu, 2012-07-26 at 17:37 +0100, Konrad Rzeszutek Wilk wrote:
> > On Thu, Jul 26, 2012 at 04:33:46PM +0100, Stefano Stabellini wrote:
> > > sync_bitops functions are equivalent to the SMP implementation of
On Thu, Jul 26, 2012 at 04:33:53PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/Kconfig | 10 ++
> 1 files changed, 10 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index a91009c..9c54cb4 100644
> --- a/arc
On Thu, Jul 26, 2012 at 04:33:51PM +0100, Stefano Stabellini wrote:
> bind_evtchn_to_irqhandler can legitimately return 0 (irq 0): it is not
> an error.
>
> If Linux is running as an HVM domain and is running as Dom0, use
> xenstored_local_init to initialize the xenstore page and event channel.
>
On Thu, Jul 26, 2012 at 04:33:50PM +0100, Stefano Stabellini wrote:
> All the original Xen headers have xen_pfn_t as mfn and pfn type, however
> when they have been imported in Linux, xen_pfn_t has been replaced with
> unsigned long. That might work for x86 and ia64 but it does not for arm.
How co
On Thu, Jul 26, 2012 at 04:33:49PM +0100, Stefano Stabellini wrote:
> Check for a "/xen" node in the device tree, if it is present set
> xen_domain_type to XEN_HVM_DOMAIN and continue initialization.
>
> Map the real shared info page using XENMEM_add_to_physmap with
> XENMAPSPACE_shared_info.
>
>
On Thu, Jul 26, 2012 at 04:33:47PM +0100, Stefano Stabellini wrote:
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/xen/Makefile |2 +-
> arch/arm/xen/grant-table.c | 53
>
> 2 files changed, 54 insertions(+), 1 deletions(-)
> create
> > > +struct pvclock_wall_clock {
> > > + u32 version;
> > > + u32 sec;
> > > + u32 nsec;
> > > +} __attribute__((__packed__));
> >
> > That is weird. It is 4+4+4 = 12 bytes? Don't you want it to be 16 bytes?
>
> I agree that 16 bytes would be a better choice, but it needs to match
> the s
On Thu, Jul 26, 2012 at 04:33:44PM +0100, Stefano Stabellini wrote:
> Use r12 to pass the hypercall number to the hypervisor.
>
> We need a register to pass the hypercall number because we might not
> know it at compile time and HVC only takes an immediate argument.
>
> Among the available regist
On Thu, Jul 26, 2012 at 04:33:43PM +0100, Stefano Stabellini wrote:
> - Basic hypervisor.h and interface.h definitions.
> - Skelethon enlighten.c, set xen_start_info to an empty struct.
Skeleton
> - Do not limit xen_initial_domain to PV guests.
Better wording: Make xen_initial_domain dependent o
On Thu, Jul 26, 2012 at 04:33:46PM +0100, Stefano Stabellini wrote:
> sync_bitops functions are equivalent to the SMP implementation of the
> original functions, independently from CONFIG_SMP being defined.
So why can't the code be changed to use that? Is it that
the _set_bit, _clear_bit, etc are
On Thu, Jul 26, 2012 at 04:33:45PM +0100, Stefano Stabellini wrote:
> ARM Xen guests always use paging in hardware, like PV on HVM guests in
> the X86 world.
Nice, so no dealing with the P2M at all in the guest?
>
> Signed-off-by: Stefano Stabellini
> ---
> arch/arm/include/asm/xen/page.h |
On Tue, Jul 24, 2012 at 11:12:29PM +0200, Daniel Lezcano wrote:
> Remove the power field as it is not used.
>
> Signed-off-by: Daniel Lezcano
> Cc: Konrad Rzeszutek Wilk
Acked.
> ---
> drivers/acpi/processor_idle.c|2 --
> drivers/xen/xen-acpi-processor.c |
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