2c789f7e2f
OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=24e6c52baae4dc9cfba9b8bb18434dec
94 lines
3.9 KiB
Diff
94 lines
3.9 KiB
Diff
Index: xen-4.0.0-testing/tools/ioemu-remote/hw/xen_blktap.c
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===================================================================
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--- xen-4.0.0-testing.orig/tools/ioemu-remote/hw/xen_blktap.c
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+++ xen-4.0.0-testing/tools/ioemu-remote/hw/xen_blktap.c
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@@ -227,6 +227,7 @@ static int open_disk(struct td_state *s,
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BlockDriver* drv;
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char* devname;
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static int devnumber = 0;
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+ int flags = readonly ? BDRV_O_RDONLY : BDRV_O_RDWR;
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int i;
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DPRINTF("Opening %s as blktap%d\n", path, devnumber);
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@@ -249,7 +250,7 @@ static int open_disk(struct td_state *s,
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DPRINTF("%s driver specified\n", drv ? drv->format_name : "No");
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/* Open the image */
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- if (bdrv_open2(bs, path, 0, drv) != 0) {
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+ if (bdrv_open2(bs, path, flags, drv) != 0) {
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fprintf(stderr, "Could not open image file %s\n", path);
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return -ENOMEM;
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}
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Index: xen-4.0.0-testing/tools/ioemu-remote/xenstore.c
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===================================================================
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--- xen-4.0.0-testing.orig/tools/ioemu-remote/xenstore.c
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+++ xen-4.0.0-testing/tools/ioemu-remote/xenstore.c
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@@ -136,7 +136,8 @@ static void insert_media(void *opaque)
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else
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format = &bdrv_raw;
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- bdrv_open2(bs, media_filename[i], 0, format);
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+ /* Temporary BDRV_O_RDWR */
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+ bdrv_open2(bs, media_filename[i], BDRV_O_RDWR, format);
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#ifdef CONFIG_STUBDOM
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{
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char *buf, *backend, *params_path, *params;
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@@ -400,9 +401,9 @@ void xenstore_parse_domain_config(int hv
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{
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char **e_danger = NULL;
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char *buf = NULL;
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- char *fpath = NULL, *bpath = NULL, *btype = NULL,
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+ char *fpath = NULL, *bpath = NULL, *btype = NULL, *mode = NULL,
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*dev = NULL, *params = NULL, *drv = NULL;
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- int i, j, ret, is_tap;
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+ int i, j, ret, is_tap, flags;
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unsigned int len, num, hd_index, pci_devid = 0;
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BlockDriverState *bs;
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BlockDriver *format;
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@@ -464,7 +465,8 @@ void xenstore_parse_domain_config(int hv
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}
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for (i = 0; i < num; i++) {
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- format = NULL; /* don't know what the format is yet */
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+ flags = 0;
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+ format = NULL; /* don't know what the format is yet */
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/* read the backend path */
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xenstore_get_backend_path(&bpath, "vbd", danger_path, hvm_domid, e_danger[i]);
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if (bpath == NULL)
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@@ -550,6 +552,17 @@ void xenstore_parse_domain_config(int hv
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format = &bdrv_raw;
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}
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+ /* read the mode of the device */
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+ if (pasprintf(&buf, "%s/mode", bpath) == -1)
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+ continue;
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+ free(mode);
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+ mode = xs_read(xsh, XBT_NULL, buf, &len);
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+
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+ if (!strcmp(mode, "r") || !strcmp(mode, "ro"))
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+ flags |= BDRV_O_RDONLY;
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+ if (!strcmp(mode, "w") || !strcmp(mode, "rw"))
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+ flags |= BDRV_O_RDWR;
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+
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#if 0
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/* Phantom VBDs are disabled because the use of paths
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* from guest-controlled areas in xenstore is unsafe.
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@@ -617,7 +630,7 @@ void xenstore_parse_domain_config(int hv
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#ifdef CONFIG_STUBDOM
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if (pasprintf(&danger_buf, "%s/device/vbd/%s", danger_path, e_danger[i]) == -1)
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continue;
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- if (bdrv_open2(bs, danger_buf, BDRV_O_CACHE_WB /* snapshot and write-back */, &bdrv_raw) == 0) {
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+ if (bdrv_open2(bs, danger_buf, flags|BDRV_O_CACHE_WB /* snapshot and write-back */, &bdrv_raw) == 0) {
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pstrcpy(bs->filename, sizeof(bs->filename), params);
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}
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#else
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@@ -646,7 +659,7 @@ void xenstore_parse_domain_config(int hv
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}
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}
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pstrcpy(bs->filename, sizeof(bs->filename), params);
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- if (bdrv_open2(bs, params, BDRV_O_CACHE_WB /* snapshot and write-back */, format) < 0) {
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+ if (bdrv_open2(bs, params, flags|BDRV_O_CACHE_WB /* snapshot and write-back */, format) < 0) {
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fprintf(stderr, "qemu: could not open vbd '%s' or hard disk image '%s' (drv '%s' format '%s')\n", buf, params, drv ? drv : "?", format ? format->format_name : "0");
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} else {
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char* snapshot = get_snapshot_name(atoi(e_danger[i]));
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