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nvdimm acpi: check revision 

Currently only revision 1 is supported

Signed-off-by: Xiao Guangrong <guangrong.xiao@linux.intel.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Xiao Guangrong 2016-06-07 20:22:05 +08:00 committed by Michael S. Tsirkin
parent 189f4d5635
commit d15fc53f8d
1 changed files with 7 additions and 0 deletions
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7
hw/acpi/nvdimm.c
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@ -485,6 +485,13 @@ nvdimm_dsm_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
nvdimm_debug("Revision %#x Handler %#x Function %#x.\n", in->revision,
in->handle, in->function);
if (in->revision != 0x1 /* Currently we only support DSM Spec Rev1. */) {
nvdimm_debug("Revision %#x is not supported, expect %#x.\n",
in->revision, 0x1);
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr);
goto exit;
}
/* Handle 0 is reserved for NVDIMM Root Device. */
if (!in->handle) {
nvdimm_dsm_root(in, dsm_mem_addr);