[Xen-changelog] [xen master] xen/arm: warn the user that we cannot route SPIs to Dom0 on ACPI

[patchbot@xxxxxxx]

commit f91c84edebe67296e4051af055dbf0adafb13a37
Author:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
AuthorDate: Wed Jun 1 15:38:51 2016 +0100
Commit:     Stefano Stabellini <sstabellini@xxxxxxxxxx>
CommitDate: Wed Jun 1 16:14:08 2016 +0100

    xen/arm: warn the user that we cannot route SPIs to Dom0 on ACPI
    
    as a consequence of 9d77b3c01d1261ce17c10097a1b393f2893ca657 being
    reverted.
    
    Signed-off-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Reviewed-by: Julien Grall <julien.grall@xxxxxxx>
---
 xen/arch/arm/vgic.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/xen/arch/arm/vgic.c b/xen/arch/arm/vgic.c
index ee35683..413ff16 100644
--- a/xen/arch/arm/vgic.c
+++ b/xen/arch/arm/vgic.c
@@ -25,6 +25,8 @@
 #include <xen/irq.h>
 #include <xen/sched.h>
 #include <xen/perfc.h>
+#include <xen/iocap.h>
+#include <xen/acpi.h>
 
 #include <asm/current.h>
 
@@ -342,9 +344,22 @@ void vgic_enable_irqs(struct vcpu *v, uint32_t r, int n)
     unsigned long flags;
     int i = 0;
     struct vcpu *v_target;
+    struct domain *d = v->domain;
 
     while ( (i = find_next_bit(&mask, 32, i)) < 32 ) {
         irq = i + (32 * n);
+        /* Set the irq type and route it to guest only for SPI and Dom0 */
+        if( irq_access_permitted(d, irq) && is_hardware_domain(d) &&
+            ( irq >= 32 ) && ( !acpi_disabled ) )
+        {
+            static int log_once = 0;
+            if ( !log_once )
+            {
+                gprintk(XENLOG_WARNING, "Routing SPIs to Dom0 on ACPI systems 
is unimplemented.\n");
+                log_once++;
+            }
+        }
+
         v_target = __vgic_get_target_vcpu(v, irq);
         p = irq_to_pending(v_target, irq);
         set_bit(GIC_IRQ_GUEST_ENABLED, &p->status);
--
generated by git-patchbot for /home/xen/git/xen.git#master

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