On 12/05/2015 12:38 AM, Vladimir Sementsov-Ogievskiy wrote:
On 16.11.2015 13:50, Xiao Guangrong wrote:
NVDIMM (A Non-Volatile Dual In-line Memory Module) is going to be supported
on Intel's platform.
Hi.
One question: do this mean, that your qemu emulated nvidimm - pmem solution will work only on Intel
host?
Currently, it is only enabled in x86 emulator, however, it can be easily enabled on
other platform which supports acpi.
BTW, you also need to check the linux kernel driver, nfit.ko, which is currently only
working on x86 IIUC:
config ACPI_NFIT
tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
depends on PHYS_ADDR_T_64BIT
depends on BLK_DEV
depends on ARCH_HAS_MMIO_FLUSH
select LIBNVDIMM
help
Infrastructure to probe ACPI 6 compliant platforms for
NVDIMMs (NFIT) and register a libnvdimm device tree. In
addition to storage devices this also enables libnvdimm to pass
ACPI._DSM messages for platform/dimm configuration.
To compile this driver as a module, choose M here:
the module will be called nfit.
$ git grep ARCH_HAS_MMIO_FLUSH
arch/x86/Kconfig: select ARCH_HAS_MMIO_FLUSH
drivers/acpi/Kconfig: depends on ARCH_HAS_MMIO_FLUSH
lib/Kconfig:config ARCH_HAS_MMIO_FLUSH
You should check ARCH_HAS_MMIO_FLUSH on your platform.
Thanks!
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