From: Julien Grall <julien.grall@citrix.com>
Date: Mon, 30 Nov 2015 16:21:03 +0000 (+0000)
Subject: WORKAROUND: Ignore access to GICD_I*ACTIVER
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=a90d3b511db7c91b25d26c6a7a5f5f29570e5f23;p=people%2Fjulieng%2Fxen-unstable.git

WORKAROUND: Ignore access to GICD_I*ACTIVER

Linux upstream is accessing them
---

diff --git a/xen/arch/arm/vgic-v2.c b/xen/arch/arm/vgic-v2.c
index 2c73133251..07316e816c 100644
--- a/xen/arch/arm/vgic-v2.c
+++ b/xen/arch/arm/vgic-v2.c
@@ -491,14 +491,14 @@ static int vgic_v2_distr_mmio_write(struct vcpu *v, mmio_info_t *info,
         printk(XENLOG_G_ERR
                "%pv: vGICD: unhandled word write %#"PRIregister" to ISACTIVER%d\n",
                v, r, gicd_reg - GICD_ISACTIVER);
-        return 0;
+        goto write_ignore_32;
 
     case VRANGE32(GICD_ICACTIVER, GICD_ICACTIVERN):
         if ( dabt.size != DABT_WORD ) goto bad_width;
         printk(XENLOG_G_ERR
                "%pv: vGICD: unhandled word write %#"PRIregister" to ICACTIVER%d\n",
                v, r, gicd_reg - GICD_ICACTIVER);
-        return 0;
+        goto write_ignore_32;
 
     case VRANGE32(GICD_IPRIORITYR, GICD_IPRIORITYRN):
     {
diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c
index 985e866793..f01bbd9613 100644
--- a/xen/arch/arm/vgic-v3.c
+++ b/xen/arch/arm/vgic-v3.c
@@ -618,14 +618,14 @@ static int __vgic_v3_distr_common_mmio_write(const char *name, struct vcpu *v,
         printk(XENLOG_G_ERR
                "%pv: %s: unhandled word write %#"PRIregister" to ISACTIVER%d\n",
                v, name, r, reg - GICD_ISACTIVER);
-        return 0;
+        goto write_ignore_32;
 
     case VRANGE32(GICD_ICACTIVER, GICD_ICACTIVERN):
         if ( dabt.size != DABT_WORD ) goto bad_width;
         printk(XENLOG_G_ERR
                "%pv: %s: unhandled word write %#"PRIregister" to ICACTIVER%d\n",
                v, name, r, reg - GICD_ICACTIVER);
-        return 0;
+        goto write_ignore_32;
 
     case VRANGE32(GICD_IPRIORITYR, GICD_IPRIORITYRN):
     {