From 52d1c1a258aef2b8ace50bb202ee7338ed0060f0 Mon Sep 17 00:00:00 2001 From: Prasad J Pandit Date: Thu, 25 Mar 2021 17:27:07 +0800 Subject: [PATCH] tz-ppc: add dummy read/write methods fix CVE-2020-15469 Add tz-ppc-dummy mmio read/write methods to avoid assert failure during initialisation. Signed-off-by: Prasad J Pandit Signed-off-by: Jiajie Li --- hw/misc/tz-ppc.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/hw/misc/tz-ppc.c b/hw/misc/tz-ppc.c index 2a14a26f29..5b7b883866 100644 --- a/hw/misc/tz-ppc.c +++ b/hw/misc/tz-ppc.c @@ -193,7 +193,20 @@ static bool tz_ppc_dummy_accepts(void *opaque, hwaddr addr, g_assert_not_reached(); } +static uint64_t tz_ppc_dummy_read(void *opaque, hwaddr addr, unsigned size) +{ + g_assert_not_reached(); +} + +static void tz_ppc_dummy_write(void *opaque, hwaddr addr, + uint64_t data, unsigned size) +{ + g_assert_not_reached(); +} + static const MemoryRegionOps tz_ppc_dummy_ops = { + .read = tz_ppc_dummy_read, + .write = tz_ppc_dummy_write, .valid.accepts = tz_ppc_dummy_accepts, }; -- 2.27.0