diff mbox series

[v1,1/1] target/microblaze: Add MFS Rd,EDR translation

Message ID 20200512143649.21655-2-edgar.iglesias@gmail.com
State New
Headers show
Series [v1,1/1] target/microblaze: Add MFS Rd,EDR translation | expand

Commit Message

Edgar E. Iglesias May 12, 2020, 2:36 p.m. UTC 
From: Tong Ho <tong.ho@xilinx.com>

This is to fix cpu-abort with 'qemu: fatal: unknown mfs reg d'
(in the default case) when microblaze guest issues 'MFS Rd,EDR'
instruction.

Since embeddedsw release 2019.2, XPlm_ExceptionHandler() issues
the instruction on exception, and microblaze model aborts when
PLM firmware guest encounters an exception.

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 target/microblaze/translate.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index 20b7427811..92b3630804 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -581,6 +581,7 @@  static void dec_msr(DisasContext *dc)
             case SR_ESR:
             case SR_FSR:
             case SR_BTR:
+            case SR_EDR:
                 tcg_gen_extrl_i64_i32(cpu_R[dc->rd], cpu_SR[sr]);
                 break;
             case 0x800: