MIPSsim - Revision history

Ralf at 09:22, 17 August 2012

2012-08-17T09:22:16Z

Ralf at 10:07, 15 August 2012

2012-08-15T10:07:47Z

Ralf: Misc updates, most importantly mention that MIPSsim is deprecated.

2012-08-13T14:40:37Z

Misc updates, most importantly mention that MIPSsim is deprecated.

Grome at 08:14, 1 September 2008

2008-09-01T08:14:07Z

Grome: How to run the Linux kernel on MIPSsim

2008-08-29T15:11:31Z

How to run the Linux kernel on MIPSsim

Ralf: Mark article as stub.

2006-05-16T11:50:25Z

Mark article as stub.

Nigel at 11:09, 17 October 2005

2005-10-17T11:09:01Z

New page

Now supported by linux-mips kernel. Needs information and instructions on how to use.

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 {{stub}}
 {{feature-removal|name=MIPSsim support|date=late 2012 (for the 3.7 release)}}
 == Introduction ==

← Older revision		Revision as of 10:07, 15 August 2012
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	Then run the simulation:		Then run the simulation:
	sde-gdb -x gdbinit vmlinux		sde-gdb -x gdbinit vmlinux
		+	[[category:virtualization]]

@@ Line 1: / Line 1: @@
 {{stub}}
-Now supported by linux-mips kernel. Needs information and instructions on how to use.
+{{feature-removal|name=MIPSsim support|date=late 2012 (for the 3.7 release)}}
-−
-THIS PAGE IS A DRAFT. FEEL FREE TO CORRECT IT (ESPECIALLY THE ENGLISH).
 == Introduction ==
@@ Line 11: / Line 9: @@
 Analyzing the traces of several simulations its possible to (in)validate an architecture and to configure the SoC to obtain the best system performances. And in the case of the cache configuration, the impact of this analysis can be very important due to the cost of the cache ram.
-This page intends to explain briefly how to quickly run a Linux kernel on MIPSsim configured to simulate a 4KSd.
+This page intends to explain briefly how to quickly run a Linux kernel on MIPSsim configured to simulate a 4KSd where throughout this document the 4KSd should be considered a placeholder for another core made by MIPS Technologies.
-This core should be replaced by any other MIPS core.
 This document has been validated on the following platform:
@@ Line 18: / Line 15: @@
 * Redhat Enterprise 5
 * Fedora 8
 == Configuration ==
@@ Line 76: / Line 76: @@
 Then run the simulation:
   sde-gdb -x gdbinit vmlinux

@@ Line 69: / Line 69: @@
 First make the kernel:
   make CROSS_COMPILE=mipsel-linux-
 Then run the simulation:
   sde-gdb -x gdbinit vmlinux
---[[User:Grome|Grome]] 15:11, 29 August 2008 (UTC)
+--[[User:Grome|Grégory R.]] 08:14, 1 September 2008 (UTC)

← Older revision		Revision as of 15:11, 29 August 2008
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	Now supported by linux-mips kernel. Needs information and instructions on how to use.		Now supported by linux-mips kernel. Needs information and instructions on how to use.
		+
		+	THIS PAGE IS A DRAFT. FEEL FREE TO CORRECT IT (ESPECIALLY THE ENGLISH).
		+
		+	== Introduction ==
		+
		+	One of the difficulties of a SoC designer is to evaluate the impact of the SoC architecture and its configuration on the final system. When the final system includes the Linux Kernel, the MIPSsim simulator can be the good candidate to solve the problem.
		+
		+	Analyzing the traces of several simulations its possible to (in)validate an architecture and to configure the SoC to obtain the best system performances. And in the case of the cache configuration, the impact of this analysis can be very important due to the cost of the cache ram.
		+
		+	This page intends to explain briefly how to quickly run a Linux kernel on MIPSsim configured to simulate a 4KSd.
		+	This core should be replaced by any other MIPS core.
		+
		+	This document has been validated on the following platform:
		+	* Ubuntu 7.10/8.04
		+	* Redhat Enterprise 5
		+	* Fedora 8
		+
		+	== Configuration ==
		+
		+	Configuration of the different components.
		+
		+	=== Kernel Configuration ===
		+
		+	To configure the kernel, the best way is to use the MIPSsim default configuration and to modify it:
		+	make mipssim_defconfig
		+
		+	Using menuconfig/xconfig you must choose the endianess correpsponding to the core configuration.
		+
		+	Excepted that, there is no other mandatory modification.
		+
		+	This configuration uses the virtual UART, you must not modify the section "Serial Drivers" excepted if you want integrated your own virtual UART.
		+
		+	=== MIPSsim Configuration ===
		+
		+	In order to allow the kernel to calibrate the delay you need to enable interruption from the internal timer.
		+	In the configuration file you must have this line:
		+	set TIMER_INT_ENABLE 1
		+
		+	The second part of the MIPSsim configuration is the configuration of the Device Manager. This one is in charge to simulate hardware devices. MIPSsim is provided with some virtual devices. In order to run the Linux kernel on MIPsim you have to enable a RAM, an UART (to get the console) and a RTC. The default configuration of those last devices are those you have to use.
		+
		+	Your device configuration files should look like:
		+	MemIntf(EB, SparseMemRam, 0, 0x0, 64M, MIPS_SparseMemRam)
		+	MemIntf(EB, RTC, 2, 0x1fd00070, 0x00000002, MIPS_Rtc)
		+	MemIntf(EB, UART, 3, 0x1fd003f8, 0x00000008, MIPS_Uart)
		+	SparseMemRam(0,,,0,0,0,0,0)
		+	RTC(2,,0,0,1)
		+	UART(3,UNBUFFERED,0,0,1)
		+
		+	An important point here is the delay you can add to the SparseMemRam accesses modifying the last number of the line:
		+	SparseMemRam(0,,,0,0,0,0,0)
		+
		+	=== GDB Script ===
		+
		+	The GDB script must set the configuration file, the MIPSsim library and the target MIPS core.
		+	By example for a 4KSd the gdb script can look like this:
		+	set mdi library libMIPSsim_MDIc.so
		+	set mdi configfile 4KSd.cfg
		+	set mdi target 19
		+	set mdi device 01
		+	target mdi
		+	load
		+	run
		+
		+	== Run the Simulation ==
		+
		+	First make the kernel:
		+	make CROSS_COMPILE=mipsel-linux-
		+
		+	Then run the simulation:
		+	sde-gdb -x gdbinit vmlinux
		+
		+	--[[User:Grome\|Grome]] 15:11, 29 August 2008 (UTC)

← Older revision		Revision as of 11:50, 16 May 2006
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		+	{{stub}}
		+
	Now supported by linux-mips kernel. Needs information and instructions on how to use.		Now supported by linux-mips kernel. Needs information and instructions on how to use.