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authorPeter Maydell <peter.maydell@linaro.org>2022-01-11 17:10:45 +0000
committerPeter Maydell <peter.maydell@linaro.org>2022-01-20 16:04:58 +0000
commit00d46e72e97ddb5651f62b6eead658a431c58bc6 (patch)
tree3db20a9180d266927b0730d2bb8bf8d58dc47cc6 /hw/intc
parentf66751961468813ba6a13de1510c448769b6979a (diff)
hw/intc/arm_gicv3_its: Fix return codes in process_mapd()
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 <peter.maydell@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20220111171048.3545974-11-peter.maydell@linaro.org
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/arm_gicv3_its.c10
1 files 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;
}
/*