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-rw-r--r--src/commonlib/include/commonlib/cbmem_id.h1
-rw-r--r--src/include/stage_cache.h10
-rw-r--r--src/lib/cbmem_stage_cache.c29
-rw-r--r--src/lib/ext_stage_cache.c41
4 files changed, 81 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/cbmem_id.h b/src/commonlib/include/commonlib/cbmem_id.h
index 9a66246001..3529fefaa0 100644
--- a/src/commonlib/include/commonlib/cbmem_id.h
+++ b/src/commonlib/include/commonlib/cbmem_id.h
@@ -61,6 +61,7 @@
#define CBMEM_ID_SMM_SAVE_SPACE 0x07e9acee
#define CBMEM_ID_STAGEx_META 0x57a9e000
#define CBMEM_ID_STAGEx_CACHE 0x57a9e100
+#define CBMEM_ID_STAGEx_RAW 0x57a9e200
#define CBMEM_ID_STORAGE_DATA 0x53746f72
#define CBMEM_ID_TCPA_LOG 0x54435041
#define CBMEM_ID_TIMESTAMP 0x54494d45
diff --git a/src/include/stage_cache.h b/src/include/stage_cache.h
index 08312ff554..28cb85998b 100644
--- a/src/include/stage_cache.h
+++ b/src/include/stage_cache.h
@@ -20,14 +20,24 @@
#include <stdint.h>
#include <program_loading.h>
+/* Types of stages that may be stored in stage cache */
enum {
STAGE_RAMSTAGE,
STAGE_REFCODE,
STAGE_POSTCAR,
};
+/* Types of raw data that may be stored in stage cache */
+enum {
+ STAGE_S3_DATA,
+};
+
/* Cache the loaded stage provided according to the parameters. */
void stage_cache_add(int stage_id, const struct prog *stage);
+/* Cache non-specific data or code. */
+void stage_cache_add_raw(int stage_id, const void *base, const size_t size);
+/* Get a pointer to cached raw data and its size. */
+void stage_cache_get_raw(int stage_id, void **base, size_t *size);
/* Load the cached stage at given location returning the stage entry point. */
void stage_cache_load_stage(int stage_id, struct prog *stage);
/* Fill in parameters for the external stage cache, if utilized. */
diff --git a/src/lib/cbmem_stage_cache.c b/src/lib/cbmem_stage_cache.c
index f17f12c892..299cb00dcf 100644
--- a/src/lib/cbmem_stage_cache.c
+++ b/src/lib/cbmem_stage_cache.c
@@ -45,6 +45,35 @@ void stage_cache_add(int stage_id, const struct prog *stage)
memcpy(c, prog_start(stage), prog_size(stage));
}
+void stage_cache_add_raw(int stage_id, const void *base, const size_t size)
+{
+ void *c;
+
+ c = cbmem_add(CBMEM_ID_STAGEx_RAW + stage_id, size);
+ if (c == NULL) {
+ printk(BIOS_DEBUG, "Error: Can't add %x raw data to cbmem\n",
+ CBMEM_ID_STAGEx_RAW + stage_id);
+ return;
+ }
+
+ memcpy(c, base, size);
+}
+
+void stage_cache_get_raw(int stage_id, void **base, size_t *size)
+{
+ const struct cbmem_entry *e;
+
+ e = cbmem_entry_find(CBMEM_ID_STAGEx_RAW + stage_id);
+ if (e == NULL) {
+ printk(BIOS_ERR, "Error: Can't find raw %x data in cbmem\n",
+ CBMEM_ID_STAGEx_RAW + stage_id);
+ return;
+ }
+
+ *base = cbmem_entry_start(e);
+ *size = cbmem_entry_size(e);
+}
+
void stage_cache_load_stage(int stage_id, struct prog *stage)
{
struct stage_cache *meta;
diff --git a/src/lib/ext_stage_cache.c b/src/lib/ext_stage_cache.c
index cea9f52625..ab783473f3 100644
--- a/src/lib/ext_stage_cache.c
+++ b/src/lib/ext_stage_cache.c
@@ -93,6 +93,47 @@ void stage_cache_add(int stage_id, const struct prog *stage)
memcpy(c, prog_start(stage), prog_size(stage));
}
+void stage_cache_add_raw(int stage_id, const void *base, const size_t size)
+{
+ struct imd *imd;
+ const struct imd_entry *e;
+ void *c;
+
+ imd = imd_get();
+ e = imd_entry_add(imd, CBMEM_ID_STAGEx_RAW + stage_id, size);
+ if (e == NULL) {
+ printk(BIOS_DEBUG, "Error: Can't add %x raw data to imd\n",
+ CBMEM_ID_STAGEx_RAW + stage_id);
+ return;
+ }
+
+ c = imd_entry_at(imd, e);
+ if (c == NULL) {
+ printk(BIOS_DEBUG, "Error: Can't get %x raw entry in imd\n",
+ CBMEM_ID_STAGEx_RAW + stage_id);
+ return;
+ }
+
+ memcpy(c, base, size);
+}
+
+void stage_cache_get_raw(int stage_id, void **base, size_t *size)
+{
+ struct imd *imd;
+ const struct imd_entry *e;
+
+ imd = imd_get();
+ e = imd_entry_find(imd, CBMEM_ID_STAGEx_RAW + stage_id);
+ if (e == NULL) {
+ printk(BIOS_DEBUG, "Error: Can't find %x raw data to imd\n",
+ CBMEM_ID_STAGEx_RAW + stage_id);
+ return;
+ }
+
+ *base = imd_entry_at(imd, e);
+ *size = imd_entry_size(imd, e);
+}
+
void stage_cache_load_stage(int stage_id, struct prog *stage)
{
struct imd *imd;