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vmm: Let guests enable SMEP/SMAP if the host supports it

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Reviewed by:	kib, grehan, jhb
Tested by:	grehan (AMD)
MFC after:	3 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D30462
This commit is contained in:
Mark Johnston 2021-05-26 09:34:52 -04:00
parent 9d0bc96ef8
commit 4c599db71a
1 changed files with 3 additions and 1 deletions
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4
sys/amd64/vmm/x86.c
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@ -441,10 +441,12 @@ x86_emulate_cpuid(struct vm *vm, int vcpu_id, uint64_t *rax, uint64_t *rbx,
*/
regs[1] &= (CPUID_STDEXT_FSGSBASE |
CPUID_STDEXT_BMI1 | CPUID_STDEXT_HLE |
CPUID_STDEXT_AVX2 | CPUID_STDEXT_BMI2 |
CPUID_STDEXT_AVX2 | CPUID_STDEXT_SMEP |
CPUID_STDEXT_BMI2 |
CPUID_STDEXT_ERMS | CPUID_STDEXT_RTM |
CPUID_STDEXT_AVX512F |
CPUID_STDEXT_RDSEED |
CPUID_STDEXT_SMAP |
CPUID_STDEXT_AVX512PF |
CPUID_STDEXT_AVX512ER |
CPUID_STDEXT_AVX512CD | CPUID_STDEXT_SHA);