From cfb7a42b4241cf1a8dea0f33947c66671923f694 Mon Sep 17 00:00:00 2001
From: Markus Armbruster <armbru@redhat.com>
Date: Tue, 6 Aug 2013 13:17:05 +0200
Subject: [PATCH 12/28] Simplify -machine option queries with qemu_get_machine_opts()
RH-Author: Markus Armbruster <armbru@redhat.com>
Message-id: <1375795025-28674-7-git-send-email-armbru@redhat.com>
Patchwork-id: 52996
O-Subject: [PATCH 7.0 qemu-kvm 6/6] Simplify -machine option queries with qemu_get_machine_opts()
Bugzilla: 980782
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Michal Novotny <minovotn@redhat.com>
RH-Acked-by: Orit Wasserman <owasserm@redhat.com>
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>
(cherry picked from commit 2ff3de685a875ece3ee21256736c0a9dbf39dc4c)
---
device_tree.c | 28 ++++++++++------------------
exec.c | 12 ++++--------
hw/arm/boot.c | 8 +-------
hw/ppc/e500.c | 12 +++---------
hw/ppc/spapr.c | 28 ++++++++++------------------
vl.c | 22 ++++++----------------
6 files changed, 34 insertions(+), 76 deletions(-)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
device_tree.c | 28 ++++++++++------------------
exec.c | 12 ++++--------
hw/arm/boot.c | 8 +-------
hw/ppc/e500.c | 12 +++---------
hw/ppc/spapr.c | 28 ++++++++++------------------
vl.c | 22 ++++++----------------
6 files changed, 34 insertions(+), 76 deletions(-)
diff --git a/device_tree.c b/device_tree.c
index 56af24b..77cbe04 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 @@ uint32_t qemu_devtree_alloc_phandle(void *fdt)
* 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 @@ int qemu_devtree_add_subnode(void *fdt, const char *name)
void qemu_devtree_dumpdtb(void *fdt, int size)
{
- QemuOpts *machine_opts;
-
- 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);
- }
- }
+ const char *dumpdtb = qemu_opt_get(qemu_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);
+ }
}
diff --git a/exec.c b/exec.c
index aec65c5..ee22b9b 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"
@@ -979,12 +980,10 @@ ram_addr_t last_ram_offset(void)
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");
@@ -1031,10 +1030,7 @@ void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev)
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 6bffc3d..6436109 100644
--- a/hw/arm/boot.c
+++ b/hw/arm/boot.c
@@ -365,7 +365,6 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
uint64_t elf_entry;
hwaddr entry;
int big_endian;
- QemuOpts *machine_opts;
/* Load the kernel. */
if (!info->kernel_filename) {
@@ -373,12 +372,7 @@ void arm_load_kernel(ARMCPU *cpu, struct arm_boot_info *info)
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 c9ae512..ef3e571 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -137,7 +137,6 @@ static int ppce500_load_device_tree(CPUPPCState *env,
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 @@ static int ppce500_load_device_tree(CPUPPCState *env,
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 c96ac81..6a46488 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -678,27 +678,19 @@ static void spapr_cpu_reset(void *opaque)
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 0ed9257..d424af7 100644
--- a/vl.c
+++ b/vl.c
@@ -1037,15 +1037,9 @@ static int parse_sandbox(QemuOpts *opts, void *opaque)
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
@@ -4136,14 +4130,10 @@ int main(int argc, char **argv, char **envp)
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 (!kernel_cmdline) {
kernel_cmdline = "";
@@ -4161,7 +4151,7 @@ int main(int argc, char **argv, char **envp)
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);
}
--
1.7.1