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From: | Xiao Guangrong |
Subject: | Re: [Qemu-devel] [PATCH 5/6] nvdimm acpi: let qemu handle _DSM method |
Date: | Fri, 8 Jan 2016 12:01:54 +0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
On 01/07/2016 10:22 PM, Igor Mammedov wrote:
On Tue, 5 Jan 2016 02:52:07 +0800 Xiao Guangrong <address@hidden> wrote:If dsm memory is successfully patched, we let qemu fully emulate the dsm method This patch saves _DSM input parameters into dsm memory, tell dsm memory address to QEMU, then fetch the result from the dsm memoryyou also need to add NVDR._CRS method that would report resources used by operation regions.
I can not understand this point, why we need to report the resource of OperationRegion? It is ACPI internally used anyway.
NVDIMM_COMMON_DSM - probably should be serialized, otherwise there is a race risk, when several callers would write to control region.
Yes, i did it in patch 6/6, but definitely i should more it to here.
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