From 00d46e72e97ddb5651f62b6eead658a431c58bc6 Mon Sep 17 00:00:00 2001 From: Peter Maydell Date: Tue, 11 Jan 2022 17:10:45 +0000 Subject: [PATCH] hw/intc/arm_gicv3_its: Fix return codes in process_mapd() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix process_mapd() to consistently return CMD_STALL for memory errors and CMD_CONTINUE for parameter errors, as we claim in the comments that we do. Signed-off-by: Peter Maydell Reviewed-by: Alex Bennée Reviewed-by: Richard Henderson Message-id: 20220111171048.3545974-11-peter.maydell@linaro.org --- hw/intc/arm_gicv3_its.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/hw/intc/arm_gicv3_its.c b/hw/intc/arm_gicv3_its.c index 80ef4dbcad..917201c148 100644 --- a/hw/intc/arm_gicv3_its.c +++ b/hw/intc/arm_gicv3_its.c @@ -597,7 +597,6 @@ static ItsCmdResult process_mapd(GICv3ITSState *s, uint64_t value, uint64_t itt_addr; bool valid; MemTxResult res = MEMTX_OK; - ItsCmdResult result = CMD_STALL; devid = ((value & DEVID_MASK) >> DEVID_SHIFT); @@ -606,7 +605,7 @@ static ItsCmdResult process_mapd(GICv3ITSState *s, uint64_t value, MEMTXATTRS_UNSPECIFIED, &res); if (res != MEMTX_OK) { - return result; + return CMD_STALL; } size = (value & SIZE_MASK); @@ -616,7 +615,7 @@ static ItsCmdResult process_mapd(GICv3ITSState *s, uint64_t value, MEMTXATTRS_UNSPECIFIED, &res); if (res != MEMTX_OK) { - return result; + return CMD_STALL; } itt_addr = (value & ITTADDR_MASK) >> ITTADDR_SHIFT; @@ -633,11 +632,10 @@ static ItsCmdResult process_mapd(GICv3ITSState *s, uint64_t value, * we ignore this command and move onto the next * command in the queue */ - } else { - result = update_dte(s, devid, valid, size, itt_addr) ? CMD_CONTINUE : CMD_STALL; + return CMD_CONTINUE; } - return result; + return update_dte(s, devid, valid, size, itt_addr) ? CMD_CONTINUE : CMD_STALL; } /*