[PATCH] arm/vgic-v3: Fix write_ignore_64's check in __vgic_v3_rdistr_rd_mmio_write()

[Oleksandr Tyshchenko]

An attempt to write access the register (i.e. GICR_PROPBASER, GICR_PENDBASER)
which should be ignored (i.e. no virtual ITS present) causes the data about
due to incorrect check at the write_ignore_64 label. The check should be
inverted.

Fixes: c4d6bbdc12e5 ("xen/arm: vgic-v3: Support 32-bit access for 64-bit 
registers")
Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshche...@epam.com>
---
 xen/arch/arm/vgic-v3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xen/arch/arm/vgic-v3.c b/xen/arch/arm/vgic-v3.c
index 2eaa48fadb..b366b046a2 100644
--- a/xen/arch/arm/vgic-v3.c
+++ b/xen/arch/arm/vgic-v3.c
@@ -649,7 +649,7 @@ bad_width:
     return 0;
 
 write_ignore_64:
-    if ( vgic_reg64_check_access(dabt) ) goto bad_width;
+    if ( !vgic_reg64_check_access(dabt) ) goto bad_width;
     return 1;
 
 write_ignore_32:
-- 
2.34.1