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Diffstat (limited to 'qemu/hw/nvram/spapr_nvram.c')
-rw-r--r--qemu/hw/nvram/spapr_nvram.c252
1 files changed, 0 insertions, 252 deletions
diff --git a/qemu/hw/nvram/spapr_nvram.c b/qemu/hw/nvram/spapr_nvram.c
deleted file mode 100644
index 802636ef3..000000000
--- a/qemu/hw/nvram/spapr_nvram.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/*
- * QEMU sPAPR NVRAM emulation
- *
- * Copyright (C) 2012 David Gibson, IBM Corporation.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include <libfdt.h>
-
-#include "sysemu/block-backend.h"
-#include "sysemu/device_tree.h"
-#include "hw/sysbus.h"
-#include "hw/ppc/spapr.h"
-#include "hw/ppc/spapr_vio.h"
-
-typedef struct sPAPRNVRAM {
- VIOsPAPRDevice sdev;
- uint32_t size;
- uint8_t *buf;
- BlockBackend *blk;
-} sPAPRNVRAM;
-
-#define TYPE_VIO_SPAPR_NVRAM "spapr-nvram"
-#define VIO_SPAPR_NVRAM(obj) \
- OBJECT_CHECK(sPAPRNVRAM, (obj), TYPE_VIO_SPAPR_NVRAM)
-
-#define MIN_NVRAM_SIZE 8192
-#define DEFAULT_NVRAM_SIZE 65536
-#define MAX_NVRAM_SIZE 1048576
-
-static void rtas_nvram_fetch(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- sPAPRNVRAM *nvram = spapr->nvram;
- hwaddr offset, buffer, len;
- void *membuf;
-
- if ((nargs != 3) || (nret != 2)) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- if (!nvram) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- rtas_st(rets, 1, 0);
- return;
- }
-
- offset = rtas_ld(args, 0);
- buffer = rtas_ld(args, 1);
- len = rtas_ld(args, 2);
-
- if (((offset + len) < offset)
- || ((offset + len) > nvram->size)) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- rtas_st(rets, 1, 0);
- return;
- }
-
- assert(nvram->buf);
-
- membuf = cpu_physical_memory_map(buffer, &len, 1);
- memcpy(membuf, nvram->buf + offset, len);
- cpu_physical_memory_unmap(membuf, len, 1, len);
-
- rtas_st(rets, 0, RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, len);
-}
-
-static void rtas_nvram_store(PowerPCCPU *cpu, sPAPRMachineState *spapr,
- uint32_t token, uint32_t nargs,
- target_ulong args,
- uint32_t nret, target_ulong rets)
-{
- sPAPRNVRAM *nvram = spapr->nvram;
- hwaddr offset, buffer, len;
- int alen;
- void *membuf;
-
- if ((nargs != 3) || (nret != 2)) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- if (!nvram) {
- rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
- return;
- }
-
- offset = rtas_ld(args, 0);
- buffer = rtas_ld(args, 1);
- len = rtas_ld(args, 2);
-
- if (((offset + len) < offset)
- || ((offset + len) > nvram->size)) {
- rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
- return;
- }
-
- membuf = cpu_physical_memory_map(buffer, &len, 0);
-
- alen = len;
- if (nvram->blk) {
- alen = blk_pwrite(nvram->blk, offset, membuf, len);
- }
-
- assert(nvram->buf);
- memcpy(nvram->buf + offset, membuf, len);
-
- cpu_physical_memory_unmap(membuf, len, 0, len);
-
- rtas_st(rets, 0, (alen < len) ? RTAS_OUT_HW_ERROR : RTAS_OUT_SUCCESS);
- rtas_st(rets, 1, (alen < 0) ? 0 : alen);
-}
-
-static void spapr_nvram_realize(VIOsPAPRDevice *dev, Error **errp)
-{
- sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(dev);
-
- if (nvram->blk) {
- nvram->size = blk_getlength(nvram->blk);
- } else {
- nvram->size = DEFAULT_NVRAM_SIZE;
- }
-
- nvram->buf = g_malloc0(nvram->size);
-
- if ((nvram->size < MIN_NVRAM_SIZE) || (nvram->size > MAX_NVRAM_SIZE)) {
- error_setg(errp, "spapr-nvram must be between %d and %d bytes in size",
- MIN_NVRAM_SIZE, MAX_NVRAM_SIZE);
- return;
- }
-
- if (nvram->blk) {
- int alen = blk_pread(nvram->blk, 0, nvram->buf, nvram->size);
-
- if (alen != nvram->size) {
- error_setg(errp, "can't read spapr-nvram contents");
- return;
- }
- }
-
- spapr_rtas_register(RTAS_NVRAM_FETCH, "nvram-fetch", rtas_nvram_fetch);
- spapr_rtas_register(RTAS_NVRAM_STORE, "nvram-store", rtas_nvram_store);
-}
-
-static int spapr_nvram_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
-{
- sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(dev);
-
- return fdt_setprop_cell(fdt, node_off, "#bytes", nvram->size);
-}
-
-static int spapr_nvram_pre_load(void *opaque)
-{
- sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(opaque);
-
- g_free(nvram->buf);
- nvram->buf = NULL;
- nvram->size = 0;
-
- return 0;
-}
-
-static int spapr_nvram_post_load(void *opaque, int version_id)
-{
- sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(opaque);
-
- if (nvram->blk) {
- int alen = blk_pwrite(nvram->blk, 0, nvram->buf, nvram->size);
-
- if (alen < 0) {
- return alen;
- }
- if (alen != nvram->size) {
- return -1;
- }
- }
-
- return 0;
-}
-
-static const VMStateDescription vmstate_spapr_nvram = {
- .name = "spapr_nvram",
- .version_id = 1,
- .minimum_version_id = 1,
- .pre_load = spapr_nvram_pre_load,
- .post_load = spapr_nvram_post_load,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(size, sPAPRNVRAM),
- VMSTATE_VBUFFER_ALLOC_UINT32(buf, sPAPRNVRAM, 1, NULL, 0, size),
- VMSTATE_END_OF_LIST()
- },
-};
-
-static Property spapr_nvram_properties[] = {
- DEFINE_SPAPR_PROPERTIES(sPAPRNVRAM, sdev),
- DEFINE_PROP_DRIVE("drive", sPAPRNVRAM, blk),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void spapr_nvram_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
-
- k->realize = spapr_nvram_realize;
- k->devnode = spapr_nvram_devnode;
- k->dt_name = "nvram";
- k->dt_type = "nvram";
- k->dt_compatible = "qemu,spapr-nvram";
- set_bit(DEVICE_CATEGORY_MISC, dc->categories);
- dc->props = spapr_nvram_properties;
- dc->vmsd = &vmstate_spapr_nvram;
-}
-
-static const TypeInfo spapr_nvram_type_info = {
- .name = TYPE_VIO_SPAPR_NVRAM,
- .parent = TYPE_VIO_SPAPR_DEVICE,
- .instance_size = sizeof(sPAPRNVRAM),
- .class_init = spapr_nvram_class_init,
-};
-
-static void spapr_nvram_register_types(void)
-{
- type_register_static(&spapr_nvram_type_info);
-}
-
-type_init(spapr_nvram_register_types)