mtrr_wrmsr

函数名称：Doesn't attempt to pass an error out to MTRR users* because it's quite complicated in some cases and probably not* worth it because the best error handling is to ignore it.

函数原型：void mtrr_wrmsr(unsigned msr, unsigned a, unsigned b)

返回类型：void

参数：

类型	参数	名称
unsigned	msr
unsigned	a
unsigned	b

**调用者**
名称	描述
k8_check_syscfg_dram_mod_en	BIOS is expected to clear MtrrFixDramModEn bit, see for example* "BIOS and Kernel Developer's Guide for the AMD Athlon 64 and AMD* Opteron Processors" (26094 Rev. 3.30 February 2006), section* "13
set_fixed_range	set_fixed_range - checks & updates a fixed-range MTRR if it* differs from the value it should have@msr: MSR address of the MTTR which should be checked and updated@changed: pointer which indicates whether the MTRR needed to be changed*@msrwords: pointer
set_mtrr_var_ranges	Set the MSR pair relating to a var range.* Returns true if changes are made.
prepare_set	Since we are disabling the cache don't allow any interrupts,* they would run extremely slow and would only increase the pain.* The caller must ensure that local interrupts are disabled and* are reenabled after post_set() has been called.
post_set
generic_set_mtrr	generic_set_mtrr - set variable MTRR register on the local CPU.@reg: The register to set.@base: The base address of the region.@size: The size of the region. If this is 0 the region is disabled.@type: The type of the region.* Returns nothing.

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