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authorPeter Maydell <peter.maydell@linaro.org>2022-01-11 17:10:44 +0000
committerPeter Maydell <peter.maydell@linaro.org>2022-01-20 16:04:58 +0000
commitf66751961468813ba6a13de1510c448769b6979a (patch)
treec9901cbb903f539717d4c650d27db0d309c44b72 /hw/intc
parent0241f7316073f5e66b560195c36e719e369947d0 (diff)
downloadfocaccia-qemu-f66751961468813ba6a13de1510c448769b6979a.tar.gz
focaccia-qemu-f66751961468813ba6a13de1510c448769b6979a.zip
hw/intc/arm_gicv3_its: Fix return codes in process_mapc()
Fix process_mapc() 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: 20220111171048.3545974-10-peter.maydell@linaro.org
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/arm_gicv3_its.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/hw/intc/arm_gicv3_its.c b/hw/intc/arm_gicv3_its.c
index 010779a9fd..80ef4dbcad 100644
--- a/hw/intc/arm_gicv3_its.c
+++ b/hw/intc/arm_gicv3_its.c
@@ -491,7 +491,6 @@ static ItsCmdResult process_mapc(GICv3ITSState *s, uint32_t offset)
     uint64_t rdbase;
     bool valid;
     MemTxResult res = MEMTX_OK;
-    ItsCmdResult result = CMD_STALL;
     uint64_t value;
 
     offset += NUM_BYTES_IN_DW;
@@ -501,7 +500,7 @@ static ItsCmdResult process_mapc(GICv3ITSState *s, uint32_t offset)
                                  MEMTXATTRS_UNSPECIFIED, &res);
 
     if (res != MEMTX_OK) {
-        return result;
+        return CMD_STALL;
     }
 
     icid = value & ICID_MASK;
@@ -520,11 +519,10 @@ static ItsCmdResult process_mapc(GICv3ITSState *s, uint32_t offset)
          * we ignore this command and move onto the next
          * command in the queue
          */
-    } else {
-        result = update_cte(s, icid, valid, rdbase) ? CMD_CONTINUE : CMD_STALL;
+        return CMD_CONTINUE;
     }
 
-    return result;
+    return update_cte(s, icid, valid, rdbase) ? CMD_CONTINUE : CMD_STALL;
 }
 
 static bool update_dte(GICv3ITSState *s, uint32_t devid, bool valid,