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target/microblaze: Add MFS Rd,EDR translation 

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>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-Id: <20200512143649.21655-2-edgar.iglesias@gmail.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
This commit is contained in:
Tong Ho 2020-05-12 16:36:49 +02:00 committed by Edgar E. Iglesias
parent 6d0af39f81
commit 7cdae31d3a
1 changed files with 1 additions and 0 deletions
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target/microblaze/translate.c
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@ -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: