Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-24 Thread Cédric Le Goater
On 09/24/2018 03:31 PM, Peter Maydell wrote: > On 24 September 2018 at 14:28, Cédric Le Goater wrote: >> On 09/24/2018 01:41 PM, Peter Maydell wrote: >>> On 19 September 2018 at 11:19, Cédric Le Goater wrote: These are the number of read operations done on the flash memory region :

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-24 Thread Peter Maydell
On 24 September 2018 at 14:28, Cédric Le Goater wrote: > On 09/24/2018 01:41 PM, Peter Maydell wrote: >> On 19 September 2018 at 11:19, Cédric Le Goater wrote: >>> These are the number of read operations done on the flash memory region : >>> >>> 922478 ~ 3.5 MBytes OpenBMC U-Boot >>>

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-24 Thread Cédric Le Goater
On 09/24/2018 01:41 PM, Peter Maydell wrote: > On 19 September 2018 at 11:19, Cédric Le Goater wrote: >> These are the number of read operations done on the flash memory region : >> >> 922478 ~ 3.5 MBytes OpenBMC U-Boot >> 20569977 ~ 80 MBytes Mainline U-Boot >> >> >> So we are

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-24 Thread Peter Maydell
On 19 September 2018 at 11:19, Cédric Le Goater wrote: > These are the number of read operations done on the flash memory region : > > 922478 ~ 3.5 MBytes OpenBMC U-Boot > 20569977 ~ 80 MBytes Mainline U-Boot > > > So we are trashing the TBs I would say. Is there a way to increase the

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-19 Thread Cédric Le Goater
On 09/19/2018 08:51 AM, Cédric Le Goater wrote: > On 09/18/2018 08:44 PM, Peter Maydell wrote: >> On 31 August 2018 at 11:38, Cédric Le Goater wrote: >>> Now that MMIO execution is supported, introduce a 'mmio-exec' property >>> to boot directly from CE0 of the FMC controller using a memory

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-19 Thread Cédric Le Goater
On 09/18/2018 08:44 PM, Peter Maydell wrote: > On 31 August 2018 at 11:38, Cédric Le Goater wrote: >> Now that MMIO execution is supported, introduce a 'mmio-exec' property >> to boot directly from CE0 of the FMC controller using a memory region >> alias. > > The name of this property seems to

Re: [Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-09-18 Thread Peter Maydell
On 31 August 2018 at 11:38, Cédric Le Goater wrote: > Now that MMIO execution is supported, introduce a 'mmio-exec' property > to boot directly from CE0 of the FMC controller using a memory region > alias. The name of this property seems to be a reference to QEMU's internals: is there some other

[Qemu-devel] [PATCH 04/11] hw/arm/aspeed: add a 'mmio-exec' property to boot from the FMC flash module

2018-08-31 Thread Cédric Le Goater
Now that MMIO execution is supported, introduce a 'mmio-exec' property to boot directly from CE0 of the FMC controller using a memory region alias. The overhead for the current firmware images using a custom U-Boot is around 2 seconds, which is fine, but with a U-Boot from mainline, it takes an