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From 5483df4df2729a5d1e4888a48039b1cd90438480 Mon Sep 17 00:00:00 2001
From: Othmar Pasteka <pasteka@kabsi.at>
Date: Wed, 30 Jan 2013 00:26:52 +0100
Subject: [PATCH 12/12] vmdk: Allow selecting SCSI adapter in image creation
Introduce a new option "adapter_type" when converting to vmdk images.
It can be one of the following: ide (default), buslogic, lsilogic
or legacyESX (according to the vmdk spec from vmware).
In case of a non-ide adapter, heads is set to 255 instead of the 16.
The latter is used for "ide".
Also see LP#545089
Signed-off-by: Othmar Pasteka <pasteka@kabsi.at>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
block/vmdk.c | 31 ++++++++++++++++++++++++++++---
block_int.h | 1 +
2 files changed, 29 insertions(+), 3 deletions(-)
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1089,6 +1089,7 @@ static int vmdk_create(const char *filen
int fd, idx = 0;
char desc[BUF_SIZE];
int64_t total_size = 0, filesize;
+ const char *adapter_type = NULL;
const char *backing_file = NULL;
const char *fmt = NULL;
int flags = 0;
@@ -1100,6 +1101,7 @@ static int vmdk_create(const char *filen
const char *desc_extent_line;
char parent_desc_line[BUF_SIZE] = "";
uint32_t parent_cid = 0xffffffff;
+ uint32_t number_heads = 16;
const char desc_template[] =
"# Disk DescriptorFile\n"
"version=1\n"
@@ -1116,9 +1118,9 @@ static int vmdk_create(const char *filen
"\n"
"ddb.virtualHWVersion = \"%d\"\n"
"ddb.geometry.cylinders = \"%" PRId64 "\"\n"
- "ddb.geometry.heads = \"16\"\n"
+ "ddb.geometry.heads = \"%d\"\n"
"ddb.geometry.sectors = \"63\"\n"
- "ddb.adapterType = \"ide\"\n";
+ "ddb.adapterType = \"%s\"\n";
if (filename_decompose(filename, path, prefix, postfix, PATH_MAX)) {
return -EINVAL;
@@ -1127,6 +1129,8 @@ static int vmdk_create(const char *filen
while (options && options->name) {
if (!strcmp(options->name, BLOCK_OPT_SIZE)) {
total_size = options->value.n;
+ } else if (!strcmp(options->name, BLOCK_OPT_ADAPTER_TYPE)) {
+ adapter_type = options->value.s;
} else if (!strcmp(options->name, BLOCK_OPT_BACKING_FILE)) {
backing_file = options->value.s;
} else if (!strcmp(options->name, BLOCK_OPT_COMPAT6)) {
@@ -1136,6 +1140,20 @@ static int vmdk_create(const char *filen
}
options++;
}
+ if (!adapter_type) {
+ adapter_type = "ide";
+ } else if (strcmp(adapter_type, "ide") &&
+ strcmp(adapter_type, "buslogic") &&
+ strcmp(adapter_type, "lsilogic") &&
+ strcmp(adapter_type, "legacyESX")) {
+ fprintf(stderr, "VMDK: Unknown adapter type: '%s'.\n", adapter_type);
+ return -EINVAL;
+ }
+ if (strcmp(adapter_type, "ide") != 0) {
+ /* that's the number of heads with which vmware operates when
+ creating, exporting, etc. vmdk files with a non-ide adapter type */
+ number_heads = 255;
+ }
if (!fmt) {
/* Default format to monolithicSparse */
fmt = "monolithicSparse";
@@ -1222,7 +1240,8 @@ static int vmdk_create(const char *filen
parent_desc_line,
ext_desc_lines,
(flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
- total_size / (int64_t)(63 * 16 * 512));
+ total_size / (int64_t)(63 * number_heads * 512), number_heads,
+ adapter_type);
if (split || flat) {
fd = open(
filename,
@@ -1281,6 +1300,12 @@ static QEMUOptionParameter vmdk_create_o
.help = "Virtual disk size"
},
{
+ .name = BLOCK_OPT_ADAPTER_TYPE,
+ .type = OPT_STRING,
+ .help = "Virtual adapter type, can be one of "
+ "ide (default), lsilogic, buslogic or legacyESX"
+ },
+ {
.name = BLOCK_OPT_BACKING_FILE,
.type = OPT_STRING,
.help = "File name of a base image"
--- a/block_int.h
+++ b/block_int.h
@@ -40,6 +40,7 @@
#define BLOCK_OPT_TABLE_SIZE "table_size"
#define BLOCK_OPT_PREALLOC "preallocation"
#define BLOCK_OPT_SUBFMT "subformat"
+#define BLOCK_OPT_ADAPTER_TYPE "adapter_type"
typedef struct AIOPool {
void (*cancel)(BlockDriverAIOCB *acb);
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