Subversion Repositories HelenOS

Rev

Rev 2444 | Rev 3902 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2444 Rev 3485
Line 245... Line 245...
245 
        : "=r" (v)
 245 
        : "=r" (v)
246 
    );
 246 
    );
247 
    return v;
 247 
    return v;
248 
}
 248 
}
249 
 
 249 
 
- 
 
 250 
/** Write to MSR */
- 
 
 251 
static inline void write_msr(uint32_t msr, uint64_t value)
- 
 
 252 
{
- 
 
 253 
    asm volatile ("wrmsr" : : "c" (msr), "a" ((uint32_t)(value)),
- 
 
 254 
        "d" ((uint32_t)(value >> 32)));
- 
 
 255 
}
- 
 
 256 
 
- 
 
 257 
static inline uint64_t read_msr(uint32_t msr)
- 
 
 258 
{
- 
 
 259 
    uint32_t ax, dx;
- 
 
 260 
 
- 
 
 261 
    asm volatile ("rdmsr" : "=a"(ax), "=d"(dx) : "c" (msr));
- 
 
 262 
    return ((uint64_t)dx << 32) | ax;
- 
 
 263 
}
- 
 
 264 
 
- 
 
 265 
 
250 
/** Return base address of current stack
 266 
/** Return base address of current stack
251 
 *
 267 
 *
252 
 * Return the base address of the current stack.
 268 
 * Return the base address of the current stack.
253 
 * The stack is assumed to be STACK_SIZE bytes long.
 269 
 * The stack is assumed to be STACK_SIZE bytes long.
254 
 * The stack must start on page boundary.
 270 
 * The stack must start on page boundary.