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[Qemu-devel] [PATCH] hw: Add VMware's GETHZ command.
From: |
Don Slutz |
Subject: |
[Qemu-devel] [PATCH] hw: Add VMware's GETHZ command. |
Date: |
Fri, 31 Aug 2012 11:30:00 -0400 |
This is known is linux as VMWARE_PORT_CMD_GETHZ.
Signed-off-by: Don Slutz <address@hidden>
---
hw/vmport.c | 22 +++++++++++++++++++++-
1 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/hw/vmport.c b/hw/vmport.c
index a4f52ee..37dbf91 100644
--- a/hw/vmport.c
+++ b/hw/vmport.c
@@ -26,13 +26,15 @@
#include "pc.h"
#include "kvm.h"
#include "qdev.h"
+#include "qemu-timer.h"
//#define VMPORT_DEBUG
#define VMPORT_CMD_GETVERSION 0x0a
#define VMPORT_CMD_GETRAMSIZE 0x14
+#define VMPORT_CMD_GETHZ 0x2d
-#define VMPORT_ENTRIES 0x2c
+#define VMPORT_ENTRIES 0x2e
#define VMPORT_MAGIC 0x564D5868
typedef struct _VMPortState
@@ -102,6 +104,23 @@ static uint32_t vmport_cmd_ram_size(void *opaque, uint32_t
addr)
return ram_size;
}
+static uint32_t vmport_cmd_get_hz(void *opaque, uint32_t addr)
+{
+ CPUX86State *env = cpu_single_env;
+ uint64_t value;
+
+ value = (uint64_t)env->tsc_khz * 1000;
+ if (value) {
+ /* apic-frequency (bus speed) */
+ env->regs[R_ECX] = (uint32_t)get_ticks_per_sec();
+ /* High part of tsc-frequency */
+ env->regs[R_EBX] = (uint32_t)(value >> 32);
+ /* Low part of tsc-frequency */
+ return (uint32_t)value;
+ } else
+ return env->regs[R_EAX];
+}
+
/* vmmouse helpers */
void vmmouse_get_data(uint32_t *data)
{
@@ -141,6 +160,7 @@ static int vmport_initfn(ISADevice *dev)
/* Register some generic port commands */
vmport_register(VMPORT_CMD_GETVERSION, vmport_cmd_get_version, NULL);
vmport_register(VMPORT_CMD_GETRAMSIZE, vmport_cmd_ram_size, NULL);
+ vmport_register(VMPORT_CMD_GETHZ, vmport_cmd_get_hz, NULL);
return 0;
}
--
1.7.1
- [Qemu-devel] [PATCH] hw: Add VMware's GETHZ command.,
Don Slutz <=