- Remove early parsing for GIC addresses
- Remove hard coded maintenance IRQ number
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
This function will replace request_irq in a later patch. It takes a dt_irq
as first argument instead of an unsigned int.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
This function will replace setup_irq in later patch. It takes a dt_irq
as first argument instead of an unsigned int.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
This function translates an interrupt specifier to an IRQ number and IRQ
type (ie: level trigger, edge trigger,...). It's GIC specific.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
This function routes an IRQ to a specific cpu. The IRQ is retrieved via
the device tree.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Add function to parse the device tree and create a hierarchical tree.
This code is based on drivers/of/base.c in linux source.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Map physical range in virtual memory with a specific mapping attribute.
Also add new mapping attributes for ARM: PAGE_HYPERVISOR_NOCACHE
and PAGE_HYPERVISOR_WC.
This function replaces early_ioremap which is only able to deal with 2Mb
aligned mapping. Therefore, vmap initialization has been moved earlier.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
ioremap function can unlikely return an unaligned virtual address if
the physical address itself is unaligned on a page size.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
[ ijc -- include asm/page.h to fix build error on x86 ]
If there is a single colon for a given target and the target
is redefined in another place (e.g. in included file) then
make executes only new target and displays following warning:
Makefile:35: warning: overriding commands for target `clean'
tools/libfsimage/common/../../../tools/libfsimage/Rules.mk:25:
warning: ignoring old commands for target `clean'
To cope with that issue define all required targets as double-colon
rules. Additionally, remove some redundant stuff.
Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
doc: buildsystem fixes
- use correct pathes (make gmake dist-docs from toplevel directory work)
- configure detects perl as tools/configure does
Signed-off-by: Christoph Egger <chegger@amazon.de>
Reviewed-by: Matthew Wilson <msw@amazon.de>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- reran autogen.sh ]
gic_disable_cpu is only called with interrupt disabled.
Use spin_lock instead of spin_lock_irq and check the function is
called with interrupts disabled.
Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
On some setup, the first linux page table is at 0x40004000. Xen will load
dom0 device tree at 0x4000100. In case of the device tree is big, linux will
corrupt the device tree.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
When debug is enabled in device tree code, some lines
are bigger than 80 characters.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
As vpl011 UART is not initialized for dom 0, when the domain tries to access to
this range, a segfault will occur in Xen. The right behaviour should be a data
abort for the guest.
Signed-off-by: Julien Grall <julien.grall@linaro.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Fixes build on arm64:
gic.c: In function ‘gic_irq_eoi’:
gic.c:726:16: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
gic.c: In function ‘maintenance_interrupt’:
gic.c:776:29: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
gic.c:778:64: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
cc1: all warnings being treated as errors
make[3]: *** [gic.o] Error 1
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
All non-external-mode (==PV) guests have 4-level pagetables now that
the PAE build of Xen is gone.
This patch should have no effect, since the condition it removes could
never be true anyway: the l2 offset of HYPERVISOR_VIRT_START on 64-bit
Xen is much higher than any l2 offset we could have seen in the
tables (and indeed bigger than the 'int' type, which clang was
complaining about). Actual compat PV guest xen entries are handled by
the equivalent test in the 64-bit SHADOW_FOREACH_L2E() below.
Reported-by: Julien Grall <julien.grall@linaro.org>
Signed-off-by: Tim Deegan <tim@xen.org>
Don't inject irqs to vcpus that are down.
Also when (re)activating a vcpu, clear the vgic and gic irq queues: we
don't want to inject any irqs that couldn't be handled by the vcpu right
before going offline.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Introduce a domain wide vtimer initialization function to initialize
the phys_timer and the virt_timer offsets.
Use the domain phys_timer and virt_timer offsets throughout the vtimer
code instead of the per-vcpu offsets.
Remove the per-vcpu offsets from struct vtimer altogether.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
The Xen physical timer emulator and virtual timer driver use two
internal Xen timers: initialize them on the pcpu the vcpu is running on,
rather than the processor that it's creating the vcpu.
On vcpu restore migrate the phys_timer and the virt_timer to the
pcpu the vcpu is running on.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
If we need to inject an irq into a VCPU that is running on a different
processor, we shouldn't just enqueue the irq into the lr_pending and
inflight lists and wait for something to interrupt the guest execution.
Send an IPI to the target pcpu so that Xen can inject the new interrupt
returning to guest.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
We don't want to support the full vcpu_op hypercall interface, just
VCPUOP_register_vcpu_info: introduce an internal ARM-only
do_arm_vcpu_op function to filter out the vcpu_op hypercalls that
we don't want to support.
Call do_arm_vcpu_op instead of do_vcpu_op from traps.c.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Move the implementation of VCPUOP_register_vcpu_info from x86 specific
to commmon code.
Move vcpu_info_mfn from an arch specific vcpu sub-field to the common
vcpu struct.
Move the initialization of vcpu_info_mfn to common code.
Move unmap_vcpu_info and the call to unmap_vcpu_info at domain
destruction time to common code.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Keir Fraser <keir@xen.org>
Julien Grall
Ian Campbell
Jan Beulich
Daniel Kiper
Christoph Egger
Julien Grall
George Dunlap
Konrad Rzeszutek Wilk
Tim Deegan
Stefano Stabellini