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author | Xiao Guangrong <guangrong.xiao@linux.intel.com> | 2016-11-07 19:13:45 +0800 |
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committer | Michael S. Tsirkin <mst@redhat.com> | 2016-11-15 17:20:37 +0200 |
commit | c2fa30757a2ba1bb5b053883773a9a61fbdd7082 (patch) | |
tree | 0b07185619e0b55d52bb116be5afa3622b0a1d1f | |
parent | 284197e41f0fe98d58ce5e8acd4966c91f28c4bd (diff) | |
download | qemu-c2fa30757a2ba1bb5b053883773a9a61fbdd7082.zip qemu-c2fa30757a2ba1bb5b053883773a9a61fbdd7082.tar.gz qemu-c2fa30757a2ba1bb5b053883773a9a61fbdd7082.tar.bz2 |
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>
-rw-r--r-- | hw/acpi/nvdimm.c | 46 |
1 files changed, 27 insertions, 19 deletions
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c index 7733f14..c7e7744 100644 --- a/hw/acpi/nvdimm.c +++ b/hw/acpi/nvdimm.c @@ -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)); } -#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. */ 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"); if (read_fit->offset > fit->len) { - func_ret_status = 3 /* Invalid Input Parameters */; + func_ret_status = NVDIMM_DSM_RET_STATUS_INVALID; goto exit; } @@ -544,11 +550,11 @@ static void nvdimm_dsm_func_read_fit(AcpiNVDIMMState *state, NvdimmDsmIn *in, if (!read_fit->offset) { fit_buf->dirty = false; } 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; } - func_ret_status = 0 /* Success */; + func_ret_status = NVDIMM_DSM_RET_STATUS_SUCCESS; read_len = MIN(fit->len - read_fit->offset, 4096 - sizeof(NvdimmFuncReadFITOut)); @@ -577,7 +583,7 @@ static void nvdimm_dsm_reserved_root(AcpiNVDIMMState *state, NvdimmDsmIn *in, 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) @@ -593,7 +599,7 @@ static void nvdimm_dsm_root(NvdimmDsmIn *in, hwaddr dsm_mem_addr) } /* 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); - 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.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, 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) { 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 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, get_label_data->length); - if (status != 0 /* Success */) { + if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) { nvdimm_dsm_no_payload(status, dsm_mem_addr); 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->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, 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, set_label_data->length); - if (status != 0 /* Success */) { + if (status != NVDIMM_DSM_RET_STATUS_SUCCESS) { nvdimm_dsm_no_payload(status, dsm_mem_addr); 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, 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) @@ -766,7 +773,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) } if (!nvdimm) { - nvdimm_dsm_no_payload(2 /* Non-Existing Memory Device */, + nvdimm_dsm_no_payload(NVDIMM_DSM_RET_STATUS_NOMEMDEV, dsm_mem_addr); return; } @@ -793,7 +800,7 @@ static void nvdimm_dsm_device(NvdimmDsmIn *in, hwaddr dsm_mem_addr) 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 @@ -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. */) { nvdimm_debug("Revision %#x is not supported, expect %#x.\n", 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; } @@ -1018,7 +1025,7 @@ static void nvdimm_build_common_dsm(Aml *dev) aml_append(unsupport, ifctx); /* 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(method, unsupport); @@ -1119,7 +1126,8 @@ static void nvdimm_build_fit(Aml *dev) aml_name(NVDIMM_DSM_RFIT_STATUS))); /* 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)); aml_append(ifctx, aml_return(aml_buffer(0, NULL))); aml_append(method, ifctx); @@ -1156,7 +1164,7 @@ static void nvdimm_build_fit(Aml *dev) * again. */ 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_int(0), offset)); aml_append(whilectx, ifctx); |