Simplify -machine option queries with qemu_get_machine_opts()
The previous two commits fixed bugs in -machine option queries. I
can't find fault with the remaining queries, but let's use
qemu_get_machine_opts() everywhere, for consistency, simplicity and
robustness.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1372943363-24081-7-git-send-email-armbru@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/device_tree.c b/device_tree.c
index 69be9da..0e7fe2d 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -21,6 +21,7 @@
#include "config.h"
#include "qemu-common.h"
#include "sysemu/device_tree.h"
+#include "sysemu/sysemu.h"
#include "hw/loader.h"
#include "qemu/option.h"
#include "qemu/config-file.h"
@@ -239,14 +240,10 @@
* which phandle id to start allocting phandles.
*/
if (!phandle) {
- QemuOpts *machine_opts;
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- const char *phandle_start;
- phandle_start = qemu_opt_get(machine_opts, "phandle_start");
- if (phandle_start) {
- phandle = strtoul(phandle_start, NULL, 0);
- }
+ const char *phandle_start = qemu_opt_get(qemu_get_machine_opts(),
+ "phandle_start");
+ if (phandle_start) {
+ phandle = strtoul(phandle_start, NULL, 0);
}
}
@@ -307,15 +304,10 @@
void qemu_devtree_dumpdtb(void *fdt, int size)
{
- QemuOpts *machine_opts;
+ const char *dumpdtb = qemu_opt_get(qemu_get_machine_opts(), "dumpdtb");
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- const char *dumpdtb = qemu_opt_get(machine_opts, "dumpdtb");
- if (dumpdtb) {
- /* Dump the dtb to a file and quit */
- exit(g_file_set_contents(dumpdtb, fdt, size, NULL) ? 0 : 1);
- }
+ if (dumpdtb) {
+ /* Dump the dtb to a file and quit */
+ exit(g_file_set_contents(dumpdtb, fdt, size, NULL) ? 0 : 1);
}
-
}
diff --git a/exec.c b/exec.c
index 485d811..e150935 100644
--- a/exec.c
+++ b/exec.c
@@ -31,6 +31,7 @@
#include "hw/qdev.h"
#include "qemu/osdep.h"
#include "sysemu/kvm.h"
+#include "sysemu/sysemu.h"
#include "hw/xen/xen.h"
#include "qemu/timer.h"
#include "qemu/config-file.h"
@@ -1043,12 +1044,10 @@
static void qemu_ram_setup_dump(void *addr, ram_addr_t size)
{
int ret;
- QemuOpts *machine_opts;
/* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts &&
- !qemu_opt_get_bool(machine_opts, "dump-guest-core", true)) {
+ if (!qemu_opt_get_bool(qemu_get_machine_opts(),
+ "dump-guest-core", true)) {
ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP);
if (ret) {
perror("qemu_madvise");
@@ -1095,10 +1094,7 @@
static int memory_try_enable_merging(void *addr, size_t len)
{
- QemuOpts *opts;
-
- opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (opts && !qemu_opt_get_bool(opts, "mem-merge", true)) {
+ if (!qemu_opt_get_bool(qemu_get_machine_opts(), "mem-merge", true)) {
/* disabled by the user */
return 0;
}
diff --git a/hw/arm/boot.c b/hw/arm/boot.c
index 7c0090f..3e8741e 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -359,7 +359,6 @@
uint64_t elf_entry;
hwaddr entry;
int big_endian;
- QemuOpts *machine_opts;
/* Load the kernel. */
if (!info->kernel_filename) {
@@ -367,12 +366,7 @@
exit(1);
}
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- info->dtb_filename = qemu_opt_get(machine_opts, "dtb");
- } else {
- info->dtb_filename = NULL;
- }
+ info->dtb_filename = qemu_opt_get(qemu_get_machine_opts(), "dtb");
if (!info->secondary_cpu_reset_hook) {
info->secondary_cpu_reset_hook = default_reset_secondary;
diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index 2f3018d..ee7e49a 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -137,7 +137,6 @@
uint32_t clock_freq = 400000000;
uint32_t tb_freq = 400000000;
int i;
- const char *toplevel_compat = NULL; /* user override */
char compatible_sb[] = "fsl,mpc8544-immr\0simple-bus";
char soc[128];
char mpic[128];
@@ -158,14 +157,9 @@
0x0, 0xe1000000,
0x0, 0x10000,
};
- QemuOpts *machine_opts;
- const char *dtb_file = NULL;
-
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- dtb_file = qemu_opt_get(machine_opts, "dtb");
- toplevel_compat = qemu_opt_get(machine_opts, "dt_compatible");
- }
+ QemuOpts *machine_opts = qemu_get_machine_opts();
+ const char *dtb_file = qemu_opt_get(machine_opts, "dtb");
+ const char *toplevel_compat = qemu_opt_get(machine_opts, "dt_compatible");
if (dtb_file) {
char *filename;
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index c040794..226ae70 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -676,27 +676,19 @@
static void spapr_create_nvram(sPAPREnvironment *spapr)
{
- QemuOpts *machine_opts;
- DeviceState *dev;
+ DeviceState *dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram");
+ const char *drivename = qemu_opt_get(qemu_get_machine_opts(), "nvram");
- dev = qdev_create(&spapr->vio_bus->bus, "spapr-nvram");
+ if (drivename) {
+ BlockDriverState *bs;
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- const char *drivename;
-
- drivename = qemu_opt_get(machine_opts, "nvram");
- if (drivename) {
- BlockDriverState *bs;
-
- bs = bdrv_find(drivename);
- if (!bs) {
- fprintf(stderr, "No such block device \"%s\" for nvram\n",
- drivename);
- exit(1);
- }
- qdev_prop_set_drive_nofail(dev, "drive", bs);
+ bs = bdrv_find(drivename);
+ if (!bs) {
+ fprintf(stderr, "No such block device \"%s\" for nvram\n",
+ drivename);
+ exit(1);
}
+ qdev_prop_set_drive_nofail(dev, "drive", bs);
}
qdev_init_nofail(dev);
diff --git a/vl.c b/vl.c
index 6678765..fb69f22 100644
--- a/vl.c
+++ b/vl.c
@@ -1036,15 +1036,9 @@
return 0;
}
-/*********QEMU USB setting******/
bool usb_enabled(bool default_usb)
{
- QemuOpts *mach_opts;
- mach_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (mach_opts) {
- return qemu_opt_get_bool(mach_opts, "usb", default_usb);
- }
- return default_usb;
+ return qemu_opt_get_bool(qemu_get_machine_opts(), "usb", default_usb);
}
#ifndef _WIN32
@@ -4095,14 +4089,10 @@
qtest_init();
}
- machine_opts = qemu_opts_find(qemu_find_opts("machine"), 0);
- if (machine_opts) {
- kernel_filename = qemu_opt_get(machine_opts, "kernel");
- initrd_filename = qemu_opt_get(machine_opts, "initrd");
- kernel_cmdline = qemu_opt_get(machine_opts, "append");
- } else {
- kernel_filename = initrd_filename = kernel_cmdline = NULL;
- }
+ machine_opts = qemu_get_machine_opts();
+ kernel_filename = qemu_opt_get(machine_opts, "kernel");
+ initrd_filename = qemu_opt_get(machine_opts, "initrd");
+ kernel_cmdline = qemu_opt_get(machine_opts, "append");
if (!boot_order) {
boot_order = machine->boot_order;
@@ -4145,7 +4135,7 @@
exit(1);
}
- if (!linux_boot && machine_opts && qemu_opt_get(machine_opts, "dtb")) {
+ if (!linux_boot && qemu_opt_get(machine_opts, "dtb")) {
fprintf(stderr, "-dtb only allowed with -kernel option\n");
exit(1);
}
