Set boot menu options for an s390 guest and store them in
the iplb. These options are set via the QEMU command line
option:
-boot menu=on|off[,splash-time=X]
or via the libvirt domain xml:
<os>
<bootmenu enable='yes|no' timeout='X'/>
</os>
Where X represents some positive integer representing
milliseconds.
Signed-off-by: Collin L. Walling <wall...@linux.vnet.ibm.com>
Reviewed-by: Janosch Frank <fran...@linux.vnet.ibm.com>
---
hw/s390x/ipl.c | 20 ++++++++++++++++++++
hw/s390x/ipl.h | 8 ++++++--
pc-bios/s390-ccw/iplb.h | 8 ++++++--
3 files changed, 32 insertions(+), 4 deletions(-)
diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 0d06fc1..2b73228 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -23,6 +23,7 @@
#include "hw/s390x/ebcdic.h"
#include "ipl.h"
#include "qemu/error-report.h"
+#include "qemu/config-file.h"
#define KERN_IMAGE_START 0x010000UL
#define KERN_PARM_AREA 0x010480UL
@@ -219,6 +220,21 @@ static Property s390_ipl_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
+static void s390_ipl_set_boot_menu(uint8_t *boot_menu_enabled,
+ uint16_t *boot_menu_timeout)
+{
+ QemuOptsList *plist = qemu_find_opts("boot-opts");
+ QemuOpts *opts = QTAILQ_FIRST(&plist->head);
+ char *p;
+
+ *boot_menu_enabled = qemu_opt_get_bool(opts, "menu", false);
+
+ if (*boot_menu_enabled) {
+ p = (char *)qemu_opt_get(opts, "splash-time");
+ *boot_menu_timeout = p ? strtol(p, &p, 10) : 0;
+ }
+}
+
static bool s390_gen_initial_iplb(S390IPLState *ipl)
{
DeviceState *dev_st;
@@ -245,6 +261,8 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
ipl->iplb.pbt = S390_IPL_TYPE_CCW;
ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
+ s390_ipl_set_boot_menu(&ipl->iplb.ccw.boot_menu_enabled,
+ &ipl->iplb.ccw.boot_menu_timeout);
} else if (sd) {
SCSIBus *bus = scsi_bus_from_device(sd);
VirtIOSCSI *vdev = container_of(bus, VirtIOSCSI, bus);
@@ -266,6 +284,8 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl)
ipl->iplb.scsi.channel = cpu_to_be16(sd->channel);
ipl->iplb.scsi.devno = cpu_to_be16(ccw_dev->sch->devno);
ipl->iplb.scsi.ssid = ccw_dev->sch->ssid & 3;
+ s390_ipl_set_boot_menu(&ipl->iplb.scsi.boot_menu_enabled,
+ &ipl->iplb.scsi.boot_menu_timeout);
} else {
return false; /* unknown device */
}
diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h
index 8a705e0..7c960b1 100644
--- a/hw/s390x/ipl.h
+++ b/hw/s390x/ipl.h
@@ -17,7 +17,9 @@
struct IplBlockCcw {
uint64_t netboot_start_addr;
- uint8_t reserved0[77];
+ uint8_t reserved0[74];
+ uint8_t boot_menu_enabled;
+ uint16_t boot_menu_timeout;
uint8_t ssid;
uint16_t devno;
uint8_t vm_flags;
@@ -51,7 +53,9 @@ struct IplBlockQemuScsi {
uint32_t lun;
uint16_t target;
uint16_t channel;
- uint8_t reserved0[77];
+ uint8_t reserved0[74];
+ uint8_t boot_menu_enabled;
+ uint16_t boot_menu_timeout;
uint8_t ssid;
uint16_t devno;
} QEMU_PACKED;
diff --git a/pc-bios/s390-ccw/iplb.h b/pc-bios/s390-ccw/iplb.h
index 890aed9..658d163 100644
--- a/pc-bios/s390-ccw/iplb.h
+++ b/pc-bios/s390-ccw/iplb.h
@@ -14,7 +14,9 @@
struct IplBlockCcw {
uint64_t netboot_start_addr;
- uint8_t reserved0[77];
+ uint8_t reserved0[74];
+ uint8_t boot_menu_enabled;
+ uint16_t boot_menu_timeout;
uint8_t ssid;
uint16_t devno;
uint8_t vm_flags;
@@ -48,7 +50,9 @@ struct IplBlockQemuScsi {
uint32_t lun;
uint16_t target;
uint16_t channel;
- uint8_t reserved0[77];
+ uint8_t reserved0[74];
+ uint8_t boot_menu_enabled;
+ uint16_t boot_menu_timeout;
uint8_t ssid;
uint16_t devno;
} __attribute__ ((packed));
--
2.7.4
