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Do some rearrangements in rdmsr.c file

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I need to do that to add support for FreeBSD
This commit is contained in:
Xorg 2016-05-18 17:18:59 +02:00
parent 841c975e95
commit 6c70d53a18
1 changed files with 54 additions and 38 deletions
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92
libcpuid/rdmsr.c
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@ -31,39 +31,7 @@
#include "libcpuid_util.h"
#include "rdtsc.h"
#ifndef _WIN32
# ifdef __APPLE__
/* On Darwin, we still do not support RDMSR, so supply dummy struct
and functions */
struct msr_driver_t { int dummy; };
struct msr_driver_t* cpu_msr_driver_open(void)
{
set_error(ERR_NOT_IMP);
return NULL;
}
struct msr_driver_t* cpu_msr_driver_open_core(int core_num)
{
set_error(ERR_NOT_IMP);
return NULL;
}
int cpu_rdmsr(struct msr_driver_t* driver, int msr_index, uint64_t* result)
{
return set_error(ERR_NOT_IMP);
}
int cpu_msr_driver_close(struct msr_driver_t* driver)
{
return set_error(ERR_NOT_IMP);
}
#define MSRINFO_DEFINED
int cpu_msrinfo(struct msr_driver_t* driver, cpu_msrinfo_request_t which)
{
return set_error(ERR_NOT_IMP);
}
# else /* __APPLE__ */
#if defined (__linux__) || defined (__gnu_linux__)
/* Assuming linux with /dev/cpu/x/msr: */
#include <unistd.h>
#include <stdio.h>
@ -105,6 +73,7 @@ struct msr_driver_t* cpu_msr_driver_open_core(int core_num)
handle->fd = fd;
return handle;
}
int cpu_rdmsr(struct msr_driver_t* driver, uint32_t msr_index, uint64_t* result)
{
ssize_t ret;
@ -125,8 +94,10 @@ int cpu_msr_driver_close(struct msr_driver_t* drv)
}
return 0;
}
# endif /* __APPLE__ */
#else /* _WIN32 */
/* #endif defined (__linux__) || defined (__gnu_linux__) */
#elif defined (_WIN32)
#include <windows.h>
#include <winioctl.h>
#include <winerror.h>
@ -240,7 +211,6 @@ static BOOL wait_for_service_state(SC_HANDLE hService, DWORD dwDesiredState, SER
return fOK;
}
static int load_driver(struct msr_driver_t* drv)
{
LPTSTR lpszInfo = __TEXT("RDMSR Executor Driver");
@ -348,7 +318,7 @@ clean_up:
#define FILE_DEVICE_UNKNOWN 0x00000022
#define IOCTL_UNKNOWN_BASE FILE_DEVICE_UNKNOWN
#define IOCTL_PROCVIEW_RDMSR CTL_CODE(IOCTL_UNKNOWN_BASE, 0x0803, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
#define IOCTL_PROCVIEW_RDMSR CTL_CODE(IOCTL_UNKNOWN_BASE, 0x0803, METHOD_BUFFERED, FILE_READ_ACCESS | FILE_WRITE_ACCESS)
int cpu_rdmsr(struct msr_driver_t* driver, uint32_t msr_index, uint64_t* result)
{
@ -384,7 +354,53 @@ int cpu_msr_driver_close(struct msr_driver_t* drv)
return 0;
}
#endif /* _WIN32 */
/* endif defined (_WIN32) */
#else /* Unsupported OS */
/* On others OS (lie Darwin), we still do not support RDMSR, so supply dummy struct
and functions */
struct msr_driver_t { int dummy; };
struct msr_driver_t* cpu_msr_driver_open(void)
{
set_error(ERR_NOT_IMP);
return NULL;
}
struct msr_driver_t* cpu_msr_driver_open_core(int core_num)
{
set_error(ERR_NOT_IMP);
return NULL;
}
int cpu_rdmsr(struct msr_driver_t* driver, int msr_index, uint64_t* result)
{
return set_error(ERR_NOT_IMP);
}
int cpu_msr_driver_close(struct msr_driver_t* driver)
{
return set_error(ERR_NOT_IMP);
}
#define MSRINFO_DEFINED
int cpu_rdmsr_range(struct msr_driver_t* handle, uint32_t msr_index, uint8_t highbit,
uint8_t lowbit, uint64_t* result)
{
return set_error(ERR_NOT_IMP);
}
uint64_t get_bits_value(uint64_t val, int highbit, int lowbit)
{
return set_error(ERR_NOT_IMP);
}
int cpu_msrinfo(struct msr_driver_t* driver, cpu_msrinfo_request_t which)
{
return set_error(ERR_NOT_IMP);
}
#endif /* Unsupported OS */
static int rdmsr_supported(void)
{