Add HPET emulation to qemu (Beth Kon)

This patch adds HPET emulation.  It can be disabled with -disable-hpet.  An hpet
provides a more finely granular clocksource than otherwise available on PC.
This means that latency-dependent applications (e.g. multimedia) will generally
be smoother when using the HPET.

Signed-off-by: Beth Kon <eak@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6081 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 7 insertions, 0 deletions

diff --git a/monitor.c b/monitor.c
index 0d55433172..042d2b0bd7 100644
--- a/monitor.c
+++ b/monitor.c
@@ -252,6 +252,11 @@ static void do_info_name(void)
         term_printf("%s\n", qemu_name);
 }
 
+static void do_info_hpet(void)
+{
+    term_printf("HPET is %s by QEMU\n", (no_hpet) ? "disabled" : "enabled");
+}
+
 static void do_info_uuid(void)
 {
     term_printf(UUID_FMT "\n", qemu_uuid[0], qemu_uuid[1], qemu_uuid[2],
@@ -1531,6 +1536,8 @@ static const term_cmd_t info_cmds[] = {
       "", "show virtual to physical memory mappings", },
     { "mem", "", mem_info,
       "", "show the active virtual memory mappings", },
+    { "hpet", "", do_info_hpet,
+      "", "show state of HPET", },
 #endif
     { "jit", "", do_info_jit,
       "", "show dynamic compiler info", },