From 437fd90c0250dee670290f9b714253671a990160 Mon Sep 17 00:00:00 2001
From: José Pekkarinen <jose.pekkarinen@nokia.com>
Date: Wed, 18 May 2016 13:18:31 +0300
Subject: These changes are the raw update to qemu-2.6.
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Collission happened in the following patches:

migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)

The code provided by the patches was already in the upstreamed
version.

Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
---
 qemu/roms/SLOF/lib/libnvram/envvar.c      | 40 ++++++++---------
 qemu/roms/SLOF/lib/libnvram/libnvram.code | 75 +++++++++++++------------------
 qemu/roms/SLOF/lib/libnvram/nvram.c       | 27 +++++++++++
 qemu/roms/SLOF/lib/libnvram/nvram.h       | 10 +++--
 4 files changed, 84 insertions(+), 68 deletions(-)

(limited to 'qemu/roms/SLOF/lib/libnvram')

diff --git a/qemu/roms/SLOF/lib/libnvram/envvar.c b/qemu/roms/SLOF/lib/libnvram/envvar.c
index 87aaf27a0..ee943fce5 100644
--- a/qemu/roms/SLOF/lib/libnvram/envvar.c
+++ b/qemu/roms/SLOF/lib/libnvram/envvar.c
@@ -17,7 +17,7 @@
 #include "nvram.h"
 
 /* returns the offset of the first byte after the searched envvar */
-static int get_past_env_pos(partition_t part, char *envvar)
+static int get_past_env_pos(partition_t part, char *envvar, int evlen)
 {
 	int offset, len;
 	static char temp[256];
@@ -32,7 +32,7 @@ static int get_past_env_pos(partition_t part, char *envvar)
 		while((data=nvram_read_byte(offset++)) && len < 256) {
 			temp[len++]=data;
 		}
-		if (!strncmp(envvar, temp, strlen(envvar))) {
+		if (!strncmp(envvar, temp, evlen)) {
 			return offset;
 		}
 	} while (len);
@@ -43,16 +43,16 @@ static int get_past_env_pos(partition_t part, char *envvar)
 /**
  * @param partition name of the envvar partition
  * @param envvar name of the environment variable
+ * @param evlen string length of the envvar parameter
  * @return pointer to temporary string containing the value of envvar
  */
-
-char *get_env(partition_t part, char *envvar)
+char *nvram_get_env(partition_t part, char *envvar, int evlen)
 {
 	static char temp[256+1];
 	int len, offset;
 	uint8_t data;
 
-	DEBUG("get_env %s... ", envvar);
+	DEBUG("nvram_get_env %p... ", envvar);
 	if(!part.addr) {
 		/* ERROR: No environment variable partition */
 		DEBUG("invalid partition.\n");
@@ -68,7 +68,7 @@ char *get_env(partition_t part, char *envvar)
 		}
 		temp[len]=0;
 
-		if (!strncmp(envvar, temp, strlen(envvar))) {
+		if (!strncmp(envvar, temp, evlen)) {
 			int pos=0;
 			while (temp[pos]!='=' && pos < len) pos++;
 			// DEBUG("value='%s'\n", temp+pos+1); 
@@ -100,7 +100,7 @@ static int find_last_envvar(partition_t part)
 	return -1;
 }
 
-int add_env(partition_t part, char *envvar, char *value)
+int nvram_add_env(partition_t part, char *envvar, int evlen, char *value, int vallen)
 {
 	int freespace, last, len, offset;
 	unsigned int i;
@@ -112,7 +112,7 @@ int add_env(partition_t part, char *envvar, char *value)
 	freespace = part.addr+part.len-last;
 
 	/* how long is the entry we want to write? */
-	len = strlen(envvar) + strlen(value) + 2;
+	len = evlen + vallen + 2;
 
 	if(freespace<len) {
 		// TODO try to increase partition size
@@ -121,18 +121,18 @@ int add_env(partition_t part, char *envvar, char *value)
 
 	offset=last;
 
-	for(i=0; i<strlen(envvar); i++)
+	for (i = 0; i < evlen; i++)
 		nvram_write_byte(offset++, envvar[i]);
 
 	nvram_write_byte(offset++, '=');
 
-	for(i=0; i<strlen(value); i++)
+	for (i = 0; i < vallen; i++)
 		nvram_write_byte(offset++, value[i]);
 
 	return 0;
 }
 
-int del_env(partition_t part, char *envvar)
+int nvram_del_env(partition_t part, char *envvar, int evlen)
 {
 	int last, current, pos, i;
 	char *buffer;
@@ -141,7 +141,7 @@ int del_env(partition_t part, char *envvar)
 		return -1;
 
 	last=find_last_envvar(part);
-	current = pos = get_past_env_pos(part, envvar);
+	current = pos = get_past_env_pos(part, envvar, evlen);
 	
 	// TODO is this really required?
 	/* go back to non-0 value */
@@ -168,25 +168,25 @@ int del_env(partition_t part, char *envvar)
 	return 0;
 }
 
-int set_env(partition_t part, char *envvar, char *value)
+int nvram_set_env(partition_t part, char *envvar, int evlen, char *value, int vallen)
 {
 	char *oldvalue, *buffer;
 	int last, current, buffersize, i;
 
-	DEBUG("set_env %lx[%lx]: %s=%s\n", part.addr, part.len, envvar, value);
+	DEBUG("nvram_set_env %lx[%lx]: %p=>%p\n", part.addr, part.len, envvar, value);
 
 	if(!part.addr)
 		return -1;
 
 	/* Check whether the environment variable exists already */
-	oldvalue = get_env(part, envvar);
+	oldvalue = nvram_get_env(part, envvar, evlen);
 
-	if(oldvalue==NULL)
-		return add_env(part, envvar, value);
+	if (oldvalue == NULL)
+		return nvram_add_env(part, envvar, evlen, value, vallen);
 
 
 	/* The value did not change. So we succeeded! */
-	if(!strncmp(oldvalue, value, strlen(value)+1))
+	if (strlen(oldvalue) == vallen && !strncmp(oldvalue, value, vallen))
 		return 0;
 
 	/* we need to overwrite environment variables, back them up first */
@@ -195,7 +195,7 @@ int set_env(partition_t part, char *envvar, char *value)
 
 	/* allocate a buffer */
 	last=find_last_envvar(part);
-	current=get_past_env_pos(part, envvar);
+	current = get_past_env_pos(part, envvar, evlen);
 	buffersize = last - current;
 	buffer=get_nvram_buffer(buffersize);
 	if(!buffer)
@@ -214,7 +214,7 @@ int set_env(partition_t part, char *envvar, char *value)
 	current++;
 
 	/* Write the new value */
-	for(i=0; i<(int)strlen(value); i++) {
+	for(i = 0; i < vallen; i++) {
 		nvram_write_byte(current++, value[i]);
 	}
 	
diff --git a/qemu/roms/SLOF/lib/libnvram/libnvram.code b/qemu/roms/SLOF/lib/libnvram/libnvram.code
index 723941d3e..8481f57f5 100644
--- a/qemu/roms/SLOF/lib/libnvram/libnvram.code
+++ b/qemu/roms/SLOF/lib/libnvram/libnvram.code
@@ -11,17 +11,6 @@
  *****************************************************************************/
 #include <nvram.h>
 
-#define STRING_INIT(str)	\
-	char str[255];		\
-	char * str##_address;	\
-	int  str##_length;
-
-#define STRING_FROM_STACK(str)				\
-	str##_length = TOS.u; POP;				\
-	str##_address = TOS.a; POP;			\
-	memcpy(str, str##_address, str##_length);	\
-	memset(str + str##_length, 0, 255 - str##_length);
-
 PRIM(nvram_X2d_c_X40)
 	unsigned int offset = TOS.u;
 	TOS.u=nvram_read_byte(offset);
@@ -80,21 +69,18 @@ MIRP
 
 /* get-named-nvram-partition ( name.addr name.len -- addr len FAILED? ) */
 PRIM(get_X2d_named_X2d_nvram_X2d_partition)
-	STRING_INIT(name)
 	partition_t partition;
+	int namelen = TOS.n; POP;
 
-	STRING_FROM_STACK(name)
-	partition = get_partition(-1, name);
+	partition = get_partition_fs(TOS.a, namelen);
 
 	if(partition.len && partition.len != -1) {
-		PUSH;
 		TOS.u = partition.addr;
 		PUSH;
 		TOS.u = partition.len;
 		PUSH;
 		TOS.u = 0; // FALSE
 	} else {
-		PUSH;
 		TOS.u = -1; // TRUE
 	}
 MIRP
@@ -103,23 +89,16 @@ MIRP
 
 /* new-nvram-partition ( type name.addr name.len len -- part.offs part.len FALSE | TRUE) */
 PRIM(new_X2d_nvram_X2d_partition)
-	int type, len, i, slen;
-	char name[12], *addr;
+	int type, len, namelen;
 	partition_t partition;
+	char *name;
 
 	len = TOS.u; POP;
-	slen = TOS.u; POP;
-	addr = (char *)TOS.u; POP;
+	namelen = TOS.u; POP;
+	name = (char *)TOS.u; POP;
 	type = TOS.u; POP;
 
-	for (i=0; i<12; i++) {
-		if(slen>i)
-			name[i]=addr[i];
-		else
-			name[i]=0;
-	}
-
-	partition=new_nvram_partition(type, name, len);
+	partition = new_nvram_partition_fs(type, name, namelen, len);
 
 	if(!partition.len) {
 		PUSH; TOS.u = -1; // TRUE
@@ -165,15 +144,17 @@ MIRP
 
 // ( part.start part.len name.addr name.len -- var.addr var.len TRUE | false )
 PRIM(internal_X2d_get_X2d_env)
-	STRING_INIT(name)
+	char *name;
+	int namelen;
 	partition_t part;
 	char *val;
 
-	STRING_FROM_STACK(name)
+	namelen = TOS.u; POP;
+	name = TOS.a; POP;
 	part.len = TOS.u; POP;
 	part.addr = TOS.u; POP;
 
-	val=get_env(part, name);
+	val = nvram_get_env(part, name, namelen);
 	if(val) {
 		PUSH; TOS.a = val;
 		PUSH; TOS.u = strlen(val);
@@ -185,17 +166,19 @@ MIRP
 
 // ( part.start part.len name.addr name.len val.addr val.len -- FALSE|TRUE)
 PRIM(internal_X2d_add_X2d_env)
-	STRING_INIT(name)
-	STRING_INIT(value)
+	char *name, *val;
+	int namelen, vallen;
 	partition_t part;
 	int ret;
 
-	STRING_FROM_STACK(value)
-	STRING_FROM_STACK(name)
+	vallen = TOS.u; POP;
+	val = TOS.a; POP;
+	namelen = TOS.u; POP;
+	name = TOS.a; POP;
 	part.len = TOS.u; POP;
 	part.addr = TOS.u; POP;
 
-	ret=add_env(part, name, value);
+	ret = nvram_add_env(part, name, namelen, val, vallen);
 	if(ret) {
 		PUSH; TOS.u = -1; // TRUE
 	} else {
@@ -205,15 +188,17 @@ MIRP
 
 // ( part.addr part.len name.addr name.len -- FALSE|TRUE)
 PRIM(internal_X2d_del_X2d_env)
-	STRING_INIT(name)
+	char *name;
+	int namelen;
 	partition_t part;
 	int ret;
 
-	STRING_FROM_STACK(name);
+	namelen = TOS.u; POP;
+	name = TOS.a; POP;
 	part.len = TOS.u; POP;
 	part.addr = TOS.u; POP;
 
-	ret=del_env(part, name);
+	ret = nvram_del_env(part, name, namelen);
 	if(ret) {
 		PUSH; TOS.u = -1; // TRUE
 	} else {
@@ -224,17 +209,19 @@ MIRP
 
 // internal-set-env ( part.addr part.len name.addr name.len val.addr val.len -- FALSE|TRUE)
 PRIM(internal_X2d_set_X2d_env)
-	STRING_INIT(name)
-	STRING_INIT(value)
+	char *name, *value;
+	int namelen, valuelen;
 	partition_t part;
 	int ret;
 
-	STRING_FROM_STACK(value)
-	STRING_FROM_STACK(name)
+	valuelen = TOS.u; POP;
+	value = TOS.a; POP;
+	namelen = TOS.u; POP;
+	name = TOS.a; POP;
 	part.len = TOS.u; POP;
 	part.addr = TOS.u; POP;
 
-	ret=set_env(part, name, value);
+	ret = nvram_set_env(part, name, namelen, value, valuelen);
 	if(ret) {
 		PUSH; TOS.u = -1; // TRUE
 	} else {
diff --git a/qemu/roms/SLOF/lib/libnvram/nvram.c b/qemu/roms/SLOF/lib/libnvram/nvram.c
index 5c1137669..473814e5c 100644
--- a/qemu/roms/SLOF/lib/libnvram/nvram.c
+++ b/qemu/roms/SLOF/lib/libnvram/nvram.c
@@ -358,6 +358,17 @@ partition_t get_partition(unsigned int type, char *name)
 	return ret;
 }
 
+/* Get partition specified by a Forth string */
+partition_t get_partition_fs(char *name, int namelen)
+{
+	char buf[namelen + 1];
+
+	memcpy(buf, name, namelen);
+	buf[namelen] = 0;
+
+	return get_partition(-1, buf);
+}
+
 void erase_nvram(int offset, int len)
 {
 	int i;
@@ -466,6 +477,22 @@ partition_t new_nvram_partition(int type, char *name, int len)
 	return new_part;
 }
 
+partition_t new_nvram_partition_fs(int type, char *name, int namelen, int len)
+{
+	char buf[13];
+	int i;
+
+	for (i = 0; i < 12; i++) {
+		if (i < namelen)
+			buf[i] = name[i];
+		else
+			buf[i] = 0;
+	}
+	buf[12] = 0;
+
+	return new_nvram_partition(type, buf, len);
+}
+
 /**
  * @param partition   partition structure pointing to the partition to wipe.
  */
diff --git a/qemu/roms/SLOF/lib/libnvram/nvram.h b/qemu/roms/SLOF/lib/libnvram/nvram.h
index fa6bdd425..73fe44424 100644
--- a/qemu/roms/SLOF/lib/libnvram/nvram.h
+++ b/qemu/roms/SLOF/lib/libnvram/nvram.h
@@ -51,9 +51,11 @@ char *get_nvram_buffer(int len);
 void free_nvram_buffer(char *buffer);
 int nvramlog_printf(const char* fmt, ...);
 partition_t get_partition(unsigned int type, char *name);
+partition_t get_partition_fs(char *name, int namelen);
 void erase_nvram(int offset, int len);
 int wipe_partition(partition_t partition, int header_only);
 partition_t new_nvram_partition(int type, char *name, int len);
+partition_t new_nvram_partition_fs(int type, char *name, int namelen, int len);
 int increase_nvram_partition_size(partition_t partition, int newsize);
 int clear_nvram_partition(partition_t part);
 int delete_nvram_partition(partition_t part);
@@ -65,9 +67,9 @@ void nvram_init(uint32_t store_token, uint32_t fetch_token,
 unsigned int get_nvram_size(void);
 
 /* envvar.c */
-char *get_env(partition_t part, char *envvar);
-int add_env(partition_t part, char *envvar, char *value);
-int del_env(partition_t part, char *envvar);
-int set_env(partition_t part, char *envvar, char *value);
+char *nvram_get_env(partition_t part, char *envvar, int evlen);
+int nvram_add_env(partition_t part, char *envvar, int evlen, char *value, int vallen);
+int nvram_del_env(partition_t part, char *envvar, int evlen);
+int nvram_set_env(partition_t part, char *envvar, int evlen, char *val, int vlen);
 
 #endif
-- 
cgit 1.2.3-korg