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R_Colin_Johnson
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Automotive Hypervisors for Safe Add-ons
R_Colin_Johnson   10/23/2013 9:33:02 AM
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The new ARMv8-R virtualization with its "bare-metal" hypervisor mode should prove to be really popular among software developers wanting to add-on functionality while maintianing all the safety that automotive demands.

junko.yoshida
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Re: Automotive Hypervisors for Safe Add-ons
junko.yoshida   10/23/2013 9:43:29 AM
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Exactly. I agree, Colin. As I understand it, this has been a big headache for them.

Similarly, this should make it easier for SoC design, according to the Linley Group's Kevin Krewell.

 

junko.yoshida
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Licensees?
junko.yoshida   10/23/2013 9:47:29 AM
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Although ARM's announcement today came with no names for potential licensees for the new v8-R architecture, Nvidia's comments in the story make it clear that the hardware-supported virtualization feature, enabled in the new architecture,  is something very much in demand by chip companies hot to trot for developing automotive platform.

R_Colin_Johnson
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Re: Licensees?
R_Colin_Johnson   10/23/2013 9:58:24 AM
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Yes indeed. I imagine NVIDIA and other chip companies are hot to  get into the lucrative automotive space, and ARM is giving the the foot-in-the-door they need. The competition should bring many benefits to the consumer--new features, capabilities and options.

Bastian.Schick
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Re: Automotive Hypervisors for Safe Add-ons
Bastian.Schick   10/23/2013 12:08:52 PM
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Frankly, I see this announcement of ARM just as a marketing blob. They want to ride the A7 wave.

Let me reason why:

- Todays Cortex-R4 offers already the protection mechanisms needed to run safety and non safety software on the same chip (see TI's TMS570, RM4x).

- No one needs 64bit unless he wants to run Android for the multimedia stuff inside a deeply embedded device.

- The "protection" needed is more a bus thing then a CPU thing which is already implemented in ARM devices or PowerPC devices (see FSL Quoriva).

- Do we really want the breaking system software run on our radio? (Ok, this is not an rational argument)

 

So what is now the reason for this "new" architecure?

prabhakar_deosthali
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Re:
prabhakar_deosthali   10/23/2013 12:09:33 PM
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This looks to be a path breaking architecture .

I am just curious to know whether this will this bring more standardization in the automotive software development process and may it more individualistic.

For security certification it may be advisable to have some kind of standardization in the software modules and their integration process.

With driver-less cars now on the horizon this is all the more important an issue

rick merritt
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Re: Licensees?
rick merritt   10/23/2013 12:43:53 PM
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I can see this intensifying competition in microcontrollers where there's a split between many ARM licensees and the Microchips and Renesas-es.

Real time was a last bastion for some of these guys

Wilco1
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Re: Automotive Hypervisors for Safe Add-ons
Wilco1   10/23/2013 1:10:14 PM
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This is the v8 version of the v7-R architecture. So it is indeed compatible with existing cores like Cortex-R4 but adds new features as well, such as the Hypervisor and support for running Linux. Note v8-R is not 64-bit.

See http://arm.com/files/pdf/ARMv8R__Architecture_Oct13.pdf for all the details.

sanjaac
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Re: Licensees?
sanjaac   10/23/2013 1:46:19 PM
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Rick,

Maybe you are not well informed, which would be really surprising, but Renesas has long been an ARM licensee in the Automotive -namely Infotaiment segment- market, with R-Car family (http://am.renesas.com/applications/automotive/cis/cis_highend/index.jsp). A quick excerpt, excluding SuperH-only devices:
  • R-Car E1: ARM® Cortex™-A9 533 MHz, 1330 DMIPS
  • R-Car M1A/S: ARM® Cortex™-A9 800 MHz + SH-4A core 800 MHz (M1A), 3760 DMIPS
  • R-Car H1: ARM® Cortex™-A9 1 GHz x 4 + SH-4A core 11760DMIPS
  • R-Car M2: ARM® Cortex™-A15 × 2 + SH-4A core over 12000DMIPS
  • R-Car H2: ARM® Cortex™-A15 × 4 + Cortex™-A7 × 4 + SH-4A core over 25,000 DMIPS

A few more details of the R-Car H2: http://am.renesas.com/press/news/2013/news20130325.jsp

So, no really clear where is the split you mention.

Or is it maybe, because some MCU vendors - Renesas for instance- also have automotive devices, more dedicated for Real Time tasks, like the RH850 (http://am.renesas.com/products/mpumcu/rh850/index.jsp?campaign=gn_prod) or V850 (http://am.renesas.com/products/mpumcu/v850/sub/automotive.jsp) families, among others, and now with ARM's announcement we see a marriage of RealTime and Non-RealTime tasks on a same device?

But in any case, it is not an ARM or not-ARM split, at least not in Renesas case, neither in Industrial nor in Automotive fields.

Cheers.

rick merritt
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Re: Licensees?
rick merritt   10/23/2013 9:34:17 PM
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1 saves
Good point, Sanjaac. Renesas is playing both sides of the fence although I believe its propritary MCU architecture is one of the most widely used.

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