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| author | Xiao Guangrong <guangrong.xiao@linux.intel.com> | 2015-12-02 15:20:58 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2015-12-22 18:39:20 +0200 |
| commit | 87252e1b61cb6e651da6cd3e9996ade8bd59a388 (patch) | |
| tree | 6c1d6420df4737323247952507732b65535a7ff2 /include | |
| parent | 8870ca0e94f2524644812dd759863c0851ffb870 (diff) | |
| download | qemu-87252e1b61cb6e651da6cd3e9996ade8bd59a388.zip qemu-87252e1b61cb6e651da6cd3e9996ade8bd59a388.tar.gz qemu-87252e1b61cb6e651da6cd3e9996ade8bd59a388.tar.bz2 | |
nvdimm acpi: build ACPI NFIT table
NFIT is defined in ACPI 6.0: 5.2.25 NVDIMM Firmware Interface Table (NFIT)
Currently, we only support PMEM mode. Each device has 3 structures:
- SPA structure, defines the PMEM region info
- MEM DEV structure, it has the @handle which is used to associate specified
ACPI NVDIMM device we will introduce in later patch.
Also we can happily ignored the memory device's interleave, the real
nvdimm hardware access is hidden behind host
- DCR structure, it defines vendor ID used to associate specified vendor
nvdimm driver. Since we only implement PMEM mode this time, Command
window and Data window are not needed
The NVDIMM functionality is controlled by the parameter, 'nvdimm', which
is introduced for the machine, there is a example to enable it:
-machine pc,nvdimm -m 8G,maxmem=100G,slots=100 -object \
memory-backend-file,id=mem1,share,mem-path=/tmp/nvdimm1,size=10G -device \
nvdimm,memdev=mem1,id=nv1
It is disabled on default
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/pc.h | 2 | ||||
| -rw-r--r-- | include/hw/mem/nvdimm.h | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index c6a7775..b0d6283 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -55,6 +55,7 @@ struct PCMachineState { uint64_t max_ram_below_4g; OnOffAuto vmport; OnOffAuto smm; + bool nvdimm; /* RAM information (sizes, addresses, configuration): */ ram_addr_t below_4g_mem_size, above_4g_mem_size; @@ -65,6 +66,7 @@ struct PCMachineState { #define PC_MACHINE_MAX_RAM_BELOW_4G "max-ram-below-4g" #define PC_MACHINE_VMPORT "vmport" #define PC_MACHINE_SMM "smm" +#define PC_MACHINE_NVDIMM "nvdimm" /** * PCMachineClass: diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h index dbfa8d6..49183c1 100644 --- a/include/hw/mem/nvdimm.h +++ b/include/hw/mem/nvdimm.h @@ -26,4 +26,7 @@ #include "hw/mem/pc-dimm.h" #define TYPE_NVDIMM "nvdimm" + +void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data, + GArray *linker); #endif |