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[Qemu-devel] [PATCH/RFC] provide --accel option
From: |
Glauber Costa |
Subject: |
[Qemu-devel] [PATCH/RFC] provide --accel option |
Date: |
Fri, 12 Sep 2008 15:47:13 -0300 |
The --accel option will provide us the ability of defining which
accelerator to pick at run time. It has the advantage of not using
the not-well-accepted constructor directives, and also, of stabilishing
a way to define priorities among accelerators.
The ones registered first, are tried first.
Signed-off-by: Glauber Costa <address@hidden>
---
vl.c | 25 +++++++++++++++++++++----
1 files changed, 21 insertions(+), 4 deletions(-)
diff --git a/vl.c b/vl.c
index a93b76f..a75635d 100644
--- a/vl.c
+++ b/vl.c
@@ -296,6 +296,13 @@ QEMUAccel noaccel = {
.break_loop = accel_nop,
};
+QEMUAccel *available_accels[] = {
+/* list of available accelerators */
+#ifdef USE_KQEMU
+ &kqemu_accel,
+#endif
+};
+
#define TFR(expr) do { if ((expr) != -1) break; } while (errno == EINTR)
/***********************************************************/
@@ -7900,6 +7907,7 @@ enum {
QEMU_OPTION_no_quit,
QEMU_OPTION_pidfile,
QEMU_OPTION_no_kqemu,
+ QEMU_OPTION_accel,
QEMU_OPTION_kernel_kqemu,
QEMU_OPTION_win2k_hack,
QEMU_OPTION_usb,
@@ -7985,6 +7993,7 @@ const QEMUOption qemu_options[] = {
{ "no-kqemu", 0, QEMU_OPTION_no_kqemu },
{ "kernel-kqemu", 0, QEMU_OPTION_kernel_kqemu },
#endif
+ { "accel", HAS_ARG, QEMU_OPTION_accel},
#if defined(TARGET_PPC) || defined(TARGET_SPARC)
{ "g", 1, QEMU_OPTION_g },
#endif
@@ -8307,10 +8316,6 @@ int main(int argc, char **argv)
}
#endif
- /* Basic handler for the noaccel case */
- register_qemu_accel(&noaccel);
- register_qemu_accel(&kqemu_accel);
-
register_machines();
machine = first_machine;
cpu_model = NULL;
@@ -8767,6 +8772,15 @@ int main(int argc, char **argv)
kqemu_allowed = 2;
break;
#endif
+ case QEMU_OPTION_accel:
+ {
+ int i;
+ for (i = 0; i < sizeof(available_accels)/sizeof(void *);
i++) {
+ if (!strcasecmp(optarg, available_accels[i]->name))
+ register_qemu_accel(available_accels[i]);
+ }
+ }
+ break;
case QEMU_OPTION_usb:
usb_enabled = 1;
break;
@@ -8891,6 +8905,9 @@ int main(int argc, char **argv)
}
}
+ /* Basic handler for the noaccel case */
+ register_qemu_accel(&noaccel);
+
if (nographic) {
if (serial_device_index == 0)
serial_devices[0] = "stdio";
--
1.5.5.1
- [Qemu-devel] [PATCH/RFC] provide --accel option,
Glauber Costa <=