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Changeset 10210

Timestamp:

07/04/08 11:53:45 (5 months ago)

Author:

vboxsync

Message:

Support MSR_K6_EFER_FFXSR if X86_CPUID_AMD_FEATURE_EDX_FFXSR is set.

Files:

r10209	r10210
2405	2405	if (u32Features & X86_CPUID_AMD_FEATURE_EDX_SEP)
2406	2406	uMask \|= MSR_K6_EFER_SCE;
	2407	if (u32Features & X86_CPUID_AMD_FEATURE_EDX_FFXSR)
	2408	uMask \|= MSR_K6_EFER_FFXSR;
2407	2409
2408	2410	/* Check for illegal MSR_K6_EFER_LME transitions: not allowed to change LME if paging is enabled. (AMD Arch. Programmer's Manual Volume 2: Table 14-5) */
…	…
2414	2416	}
2415	2417
2416		/* There are a few more: e.g. MSR_K6_EFER_~~FFXSR, MSR_K6_EFER_~~LMSLE */
2417		AssertMsg(!(val & ~(MSR_K6_EFER_NXE\|MSR_K6_EFER_LME\|MSR_K6_EFER_LMA /* ignored anyway */ \|MSR_K6_EFER_SCE)), ("Unexpected value %RX64\n", val));
	2418	/* There are a few more: e.g. MSR_K6_EFER_LMSLE */
	2419	AssertMsg(!(val & ~(MSR_K6_EFER_NXE\|MSR_K6_EFER_LME\|MSR_K6_EFER_LMA /* ignored anyway */ \|MSR_K6_EFER_SCE\|MSR_K6_EFER_FFXSR)), ("Unexpected value %RX64\n", val));
2418	2420	pCtx->msrEFER = (pCtx->msrEFER & ~uMask) \| (val & uMask);
2419	2421