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From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
To: qemu-devel@nongnu.org
Cc: figlesia@xilinx.com, peter.maydell@linaro.org,
	sstabellini@kernel.org, edgar.iglesias@xilinx.com,
	sai.pavan.boddu@xilinx.com, frasse.iglesias@gmail.com,
	alistair@alistair23.me, frederic.konrad@adacore.com,
	tong.ho@xilinx.com, philmd@redhat.com, luc.michel@greensocs.com
Subject: [PATCH v1 1/1] target/microblaze: Add MFS Rd,EDR translation
Date: Tue, 12 May 2020 16:36:49 +0200	[thread overview]
Message-ID: <20200512143649.21655-2-edgar.iglesias@gmail.com> (raw)
In-Reply-To: <20200512143649.21655-1-edgar.iglesias@gmail.com>

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 --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:
-- 
2.20.1



  reply	other threads:[~2020-05-12 14:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 14:36 [PATCH v1 0/1] target/microblaze: Fix mfs from EDR Edgar E. Iglesias
2020-05-12 14:36 ` Edgar E. Iglesias [this message]
2020-05-13  7:42   ` [PATCH v1 1/1] target/microblaze: Add MFS Rd,EDR translation Luc Michel

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