On 2012-08-31 19:20, Don Slutz wrote: > This is known is linux as VMWARE_PORT_CMD_GETHZ. > > Signed-off-by: Don Slutz <[email protected]> > --- > hw/vmport.c | 23 ++++++++++++++++++++++- > 1 files changed, 22 insertions(+), 1 deletions(-) > > diff --git a/hw/vmport.c b/hw/vmport.c > index a4f52ee..e856255 100644 > --- a/hw/vmport.c > +++ b/hw/vmport.c > @@ -31,8 +31,9 @@ > > #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 +103,25 @@ 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; > + const uint32_t apicHz = 1000000000L; > + > + value = (uint64_t)env->tsc_khz * 1000; > + if (value) { > + /* apic-frequency (bus speed) */ > + env->regs[R_ECX] = apicHz; > + /* 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 +161,7 @@ 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; > } > >
Reviewed-by: Jan Kiszka <[email protected]> -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux
