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nvdimm acpi: define DSM return codes 

and use these codes to refine the code

Suggested-by: Igor Mammedov <imammedo@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>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
This commit is contained in:
Xiao Guangrong 2016-11-07 19:13:45 +08:00 committed by Michael S. Tsirkin
parent 284197e41f
commit c2fa30757a
1 changed files with 27 additions and 19 deletions
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46
hw/acpi/nvdimm.c
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@ -514,7 +514,13 @@ nvdimm_dsm_no_payload(uint32_t func_ret_status, hwaddr dsm_mem_addr)
cpu_physical_memory_write(dsm_mem_addr, &out, sizeof(out)); cpu_physical_memory_write(dsm_mem_addr, &out, sizeof(out));
} }
#define NVDIMM_QEMU_RSVD_HANDLE_ROOT 0x10000 #define NVDIMM_DSM_RET_STATUS_SUCCESS 0 /* Success */
#define NVDIMM_DSM_RET_STATUS_UNSUPPORT 1 /* Not Supported */
#define NVDIMM_DSM_RET_STATUS_NOMEMDEV 2 /* Non-Existing Memory Device */
#define NVDIMM_DSM_RET_STATUS_INVALID 3 /* Invalid Input Parameters */
#define NVDIMM_DSM_RET_STATUS_FIT_CHANGED 0x100 /* FIT Changed */
#define NVDIMM_QEMU_RSVD_HANDLE_ROOT 0x10000
/* Read FIT data, defined in docs/specs/acpi_nvdimm.txt. */ /* Read FIT data, defined in docs/specs/acpi_nvdimm.txt. */
static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in, static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in,
@ -536,7 +542,7 @@ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in,
read_fit->offset, fit->len, fit_buf->dirty ? "Yes" : "No"); read_fit->offset, fit->len, fit_buf->dirty ? "Yes" : "No");
if (read_fit->offset > fit->len) { if (read_fit->offset > fit->len) {
func_ret_status = 3 /* Invalid Input Parameters */; func_ret_status = NVDIMM_DSM_RET_STATUS_INVALID;
goto exit; goto exit;
} }
@ -544,11 +550,11 @@ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in,
if (!read_fit->offset) { if (!read_fit->offset) {
fit_buf->dirty = false; fit_buf->dirty = false;
} else if (fit_buf->dirty) { /* FIT has been changed during RFIT. */ } else if (fit_buf->dirty) { /* FIT has been changed during RFIT. */
func_ret_status = 0x100 /* fit changed */; func_ret_status = NVDIMM_DSM_RET_STATUS_FIT_CHANGED;
goto exit; goto exit;
} }
func_ret_status = 0 /* Success */; func_ret_status = NVDIMM_DSM_RET_STATUS_SUCCESS;
read_len = MIN(fit->len - read_fit->offset, read_len = MIN(fit->len - read_fit->offset,
4096 - sizeof(NvdimmFuncReadFITOut)); 4096 - sizeof(NvdimmFuncReadFITOut));
@ -577,7 +583,7 @@ static void nvdimm_dsm_reserved_root(AcpiNVDIMMState *state, NvdimmDsmIn *in,
return; return;
} }
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr);
} }
static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr) static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
@ -593,7 +599,7 @@ static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
} }
/* No function except function 0 is supported yet. */ /* No function except function 0 is supported yet. */
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr);
} }
/* /*
@ -639,7 +645,7 @@ static void nvdimm_dsm_label_size(NVDIMMDevice *nvdimm, hwaddr dsm_mem_addr)
nvdimm_debug("label_size %#x, max_xfer %#x.\n", label_size, mxfer); nvdimm_debug("label_size %#x, max_xfer %#x.\n", label_size, mxfer);
label_size_out.func_ret_status = cpu_to_le32(0 /* Success */); label_size_out.func_ret_status = cpu_to_le32(NVDIMM_DSM_RET_STATUS_SUCCESS);
label_size_out.label_size = cpu_to_le32(label_size); label_size_out.label_size = cpu_to_le32(label_size);
label_size_out.max_xfer = cpu_to_le32(mxfer); label_size_out.max_xfer = cpu_to_le32(mxfer);
@ -650,7 +656,7 @@ static void nvdimm_dsm_label_size(NVDIMMDevice *nvdimm, hwaddr dsm_mem_addr)
static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm, static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm,
uint32_t offset, uint32_t length) uint32_t offset, uint32_t length)
{ {
uint32_t ret = 3 /* Invalid Input Parameters */; uint32_t ret = NVDIMM_DSM_RET_STATUS_INVALID;
if (offset + length < offset) { if (offset + length < offset) {
nvdimm_debug("offset %#x + length %#x is overflow.\n", offset, nvdimm_debug("offset %#x + length %#x is overflow.\n", offset,
@ -670,7 +676,7 @@ static uint32_t nvdimm_rw_label_data_check(NVDIMMDevice *nvdimm,
return ret; return ret;
} }
return 0 /* Success */; return NVDIMM_DSM_RET_STATUS_SUCCESS;
} }
/* /*
@ -694,7 +700,7 @@ static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
status = nvdimm_rw_label_data_check(nvdimm, get_label_data->offset, status = nvdimm_rw_label_data_check(nvdimm, get_label_data->offset,
get_label_data->length); get_label_data->length);
if (status != 0 /* Success */) { if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) {
nvdimm_dsm_no_payload(status, dsm_mem_addr); nvdimm_dsm_no_payload(status, dsm_mem_addr);
return; return;
} }
@ -704,7 +710,8 @@ static void nvdimm_dsm_get_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
get_label_data_out = g_malloc(size); get_label_data_out = g_malloc(size);
get_label_data_out->len = cpu_to_le32(size); get_label_data_out->len = cpu_to_le32(size);
get_label_data_out->func_ret_status = cpu_to_le32(0 /* Success */); get_label_data_out->func_ret_status =
cpu_to_le32(NVDIMM_DSM_RET_STATUS_SUCCESS);
nvc->read_label_data(nvdimm, get_label_data_out->out_buf, nvc->read_label_data(nvdimm, get_label_data_out->out_buf,
get_label_data->length, get_label_data->offset); get_label_data->length, get_label_data->offset);
@ -732,7 +739,7 @@ static void nvdimm_dsm_set_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
status = nvdimm_rw_label_data_check(nvdimm, set_label_data->offset, status = nvdimm_rw_label_data_check(nvdimm, set_label_data->offset,
set_label_data->length); set_label_data->length);
if (status != 0 /* Success */) { if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) {
nvdimm_dsm_no_payload(status, dsm_mem_addr); nvdimm_dsm_no_payload(status, dsm_mem_addr);
return; return;
} }
@ -742,7 +749,7 @@ static void nvdimm_dsm_set_label_data(NVDIMMDevice *nvdimm, NvdimmDsmIn *in,
nvc->write_label_data(nvdimm, set_label_data->in_buf, nvc->write_label_data(nvdimm, set_label_data->in_buf,
set_label_data->length, set_label_data->offset); set_label_data->length, set_label_data->offset);
nvdimm_dsm_no_payload(0 /* Success */, dsm_mem_addr); nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_SUCCESS, dsm_mem_addr);
} }
static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
@ -766,7 +773,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
} }
if (!nvdimm) { if (!nvdimm) {
nvdimm_dsm_no_payload(2 /* Non-Existing Memory Device */, nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_NOMEMDEV,
dsm_mem_addr); dsm_mem_addr);
return; return;
} }
@ -793,7 +800,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr)
break; break;
} }
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr);
} }
static uint64_t static uint64_t
@ -830,7 +837,7 @@ nvdimm_dsm_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
if (in->revision != 0x1 /* Currently we only support DSM Spec Rev1. */) { if (in->revision != 0x1 /* Currently we only support DSM Spec Rev1. */) {
nvdimm_debug("Revision %#x is not supported, expect %#x.\n", nvdimm_debug("Revision %#x is not supported, expect %#x.\n",
in->revision, 0x1); in->revision, 0x1);
nvdimm_dsm_no_payload(1 /* Not Supported */, dsm_mem_addr); nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_UNSUPPORT, dsm_mem_addr);
goto exit; goto exit;
} }
@ -1018,7 +1025,7 @@ static void nvdimm_build_common_dsm(Aml *dev)
aml_append(unsupport, ifctx); aml_append(unsupport, ifctx);
/* No function is supported yet. */ /* No function is supported yet. */
byte_list[0] = 1 /* Not Supported */; byte_list[0] = NVDIMM_DSM_RET_STATUS_UNSUPPORT;
aml_append(unsupport, aml_return(aml_buffer(1, byte_list))); aml_append(unsupport, aml_return(aml_buffer(1, byte_list)));
aml_append(method, unsupport); aml_append(method, unsupport);
@ -1119,7 +1126,8 @@ static void nvdimm_build_fit(Aml *dev)
aml_name(NVDIMM_DSM_RFIT_STATUS))); aml_name(NVDIMM_DSM_RFIT_STATUS)));
/* if something is wrong during _DSM. */ /* if something is wrong during _DSM. */
ifcond = aml_equal(aml_int(0 /* Success */), aml_name("STAU")); ifcond = aml_equal(aml_int(NVDIMM_DSM_RET_STATUS_SUCCESS),
aml_name("STAU"));
ifctx = aml_if(aml_lnot(ifcond)); ifctx = aml_if(aml_lnot(ifcond));
aml_append(ifctx, aml_return(aml_buffer(0, NULL))); aml_append(ifctx, aml_return(aml_buffer(0, NULL)));
aml_append(method, ifctx); aml_append(method, ifctx);
@ -1156,7 +1164,7 @@ static void nvdimm_build_fit(Aml *dev)
* again. * again.
*/ */
ifctx = aml_if(aml_equal(aml_name(NVDIMM_DSM_RFIT_STATUS), ifctx = aml_if(aml_equal(aml_name(NVDIMM_DSM_RFIT_STATUS),
aml_int(0x100 /* fit changed */))); aml_int(NVDIMM_DSM_RET_STATUS_FIT_CHANGED)));
aml_append(ifctx, aml_store(aml_buffer(0, NULL), fit)); aml_append(ifctx, aml_store(aml_buffer(0, NULL), fit));
aml_append(ifctx, aml_store(aml_int(0), offset)); aml_append(ifctx, aml_store(aml_int(0), offset));
aml_append(whilectx, ifctx); aml_append(whilectx, ifctx);