[gem5-dev] Change in public/gem5[master]: dev: Add ATA command used in recent Linux kernels

[Jason Lowe-Power (Gerrit)]

Jason Lowe-Power has uploaded this change for review. (  
https://gem5-review.googlesource.com/2863

Change subject: dev: Add ATA command used in recent Linux kernels
......................................................................

dev: Add ATA command used in recent Linux kernels

Add a case for the ATA command ATAPI_IDENTIFY_DEVICE.
This avoids the panic: Unsupported ATA command when booting a recent Linux
kernel. This was tested on 4.8.13.

Change-Id: Ib297a2c02da0730d8698c59801254dd0f5ee9f7f
Signed-off-by: Jason Lowe-Power <ja...@lowepower.com>
---
M src/dev/storage/ide_disk.cc
1 file changed, 1 insertion(+), 0 deletions(-)



diff --git a/src/dev/storage/ide_disk.cc b/src/dev/storage/ide_disk.cc
index e4b4e62..f7b6a80 100644
--- a/src/dev/storage/ide_disk.cc
+++ b/src/dev/storage/ide_disk.cc
@@ -657,6 +657,7 @@

         // Supported PIO data-in commands
       case WDCC_IDENTIFY:
+      case ATAPI_IDENTIFY_DEVICE:
         cmdBytes = cmdBytesLeft = sizeof(struct ataparams);
         devState = Prepare_Data_In;
         action = ACT_DATA_READY;

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Gerrit-Project: public/gem5
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ib297a2c02da0730d8698c59801254dd0f5ee9f7f
Gerrit-Change-Number: 2863
Gerrit-PatchSet: 1
Gerrit-Owner: Jason Lowe-Power <ja...@lowepower.com>
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