# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1201770681 0
# Node ID 32b898768217027688de8c96f67afb73983c9ad3
# Parent 5c30a9dec02d3d7b222d72819f4bb271d231bc63
ioemu: Stop PV guest from parsing xenstore and opening block devices.
PV guests are now using QEMU for a vncserver. During initialization
of QEMU xenstore_parse_config() is being called causing PV guests to
open block devices. This patch makes a new function,
xenstore_daemon_open(), so that the vnc password functions have an
open xenstore handle and moves xenstore_parse_config() into the FV
machine specific init function.
Signed-off-by: Pat Campbell <plc@xxxxxxxxxx>
---
tools/ioemu/hw/xen_machine_fv.c | 2 ++
tools/ioemu/vl.c | 2 +-
tools/ioemu/vl.h | 1 +
tools/ioemu/xenstore.c | 13 +++++++------
4 files changed, 11 insertions(+), 7 deletions(-)
diff -r 5c30a9dec02d -r 32b898768217 tools/ioemu/hw/xen_machine_fv.c
--- a/tools/ioemu/hw/xen_machine_fv.c Wed Jan 30 18:39:04 2008 +0000
+++ b/tools/ioemu/hw/xen_machine_fv.c Thu Jan 31 09:11:21 2008 +0000
@@ -205,6 +205,8 @@ static void xen_init_fv(uint64_t ram_siz
}
#endif
+ xenstore_parse_domain_config(domid);
+
xc_get_hvm_param(xc_handle, domid, HVM_PARAM_IOREQ_PFN, &ioreq_pfn);
fprintf(logfile, "shared page at pfn %lx\n", ioreq_pfn);
shared_page = xc_map_foreign_range(xc_handle, domid, XC_PAGE_SIZE,
diff -r 5c30a9dec02d -r 32b898768217 tools/ioemu/vl.c
--- a/tools/ioemu/vl.c Wed Jan 30 18:39:04 2008 +0000
+++ b/tools/ioemu/vl.c Thu Jan 31 09:11:21 2008 +0000
@@ -7593,7 +7593,7 @@ int main(int argc, char **argv)
#ifdef CONFIG_DM
bdrv_init();
xc_handle = xc_interface_open();
- xenstore_parse_domain_config(domid);
+ xenstore_daemon_open();
#endif /* CONFIG_DM */
#ifdef USE_KQEMU
diff -r 5c30a9dec02d -r 32b898768217 tools/ioemu/vl.h
--- a/tools/ioemu/vl.h Wed Jan 30 18:39:04 2008 +0000
+++ b/tools/ioemu/vl.h Thu Jan 31 09:11:21 2008 +0000
@@ -1457,6 +1457,7 @@ void readline_start(const char *prompt,
ReadLineFunc *readline_func, void *opaque);
/* xenstore.c */
+void xenstore_daemon_open(void);
void xenstore_parse_domain_config(int domid);
int xenstore_fd(void);
void xenstore_process_event(void *opaque);
diff -r 5c30a9dec02d -r 32b898768217 tools/ioemu/xenstore.c
--- a/tools/ioemu/xenstore.c Wed Jan 30 18:39:04 2008 +0000
+++ b/tools/ioemu/xenstore.c Thu Jan 31 09:11:21 2008 +0000
@@ -77,6 +77,13 @@ static void waitForDevice(char *fn)
return;
}
+void xenstore_daemon_open(void)
+{
+ xsh = xs_daemon_open();
+ if (xsh == NULL)
+ fprintf(logfile, "Could not contact xenstore for domain config\n");
+}
+
void xenstore_parse_domain_config(int domid)
{
char **e = NULL;
@@ -89,12 +96,6 @@ void xenstore_parse_domain_config(int do
for(i = 0; i < MAX_DISKS + MAX_SCSI_DISKS; i++)
media_filename[i] = NULL;
-
- xsh = xs_daemon_open();
- if (xsh == NULL) {
- fprintf(logfile, "Could not contact xenstore for domain config\n");
- return;
- }
path = xs_get_domain_path(xsh, domid);
if (path == NULL) {
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