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From: | Xiao Guangrong |
Subject: | Re: [Qemu-devel] [PATCH v2 10/18] nvdimm: init the address region used by DSM method |
Date: | Wed, 26 Aug 2015 18:41:18 +0800 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 |
On 08/26/2015 12:11 AM, Stefan Hajnoczi wrote:
On Fri, Aug 14, 2015 at 10:52:03PM +0800, Xiao Guangrong wrote:@@ -257,14 +258,91 @@ static void build_nfit_table(GSList *device_list, char *buf) } } +struct dsm_buffer { + /* RAM page. */ + uint32_t handle; + uint8_t arg0[16]; + uint32_t arg1; + uint32_t arg2; + union { + char arg3[PAGE_SIZE - 3 * sizeof(uint32_t) - 16 * sizeof(uint8_t)]; + }; + + /* MMIO page. */ + union { + uint32_t notify; + char pedding[PAGE_SIZE];s/pedding/padding/
Will fix.
+ }; +}; + +static ram_addr_t dsm_addr; +static size_t dsm_size; + +static uint64_t dsm_read(void *opaque, hwaddr addr, + unsigned size) +{ + return 0; +} + +static void dsm_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ +} + +static const MemoryRegionOps dsm_ops = { + .read = dsm_read, + .write = dsm_write, + .endianness = DEVICE_LITTLE_ENDIAN, +}; + +static int build_dsm_buffer(void) +{ + MemoryRegion *dsm_ram_mr, *dsm_mmio_mr; + ram_addr_t addr;;s/;;/;/
Will fix.
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