The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=47cf1b37f42d2acb24fa3a1e6106374dddb3edbf
commit 47cf1b37f42d2acb24fa3a1e6106374dddb3edbf Author: Mark Johnston <[email protected]> AuthorDate: 2023-04-25 17:33:08 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2023-04-25 17:35:14 +0000 vmm: Expose some more AVX512 CPUID bits to guests This is required to announce support for some accelerated AES operations. AVX512BW indicates support for the AVX512-FP16 extension and AVX512VL indicates support for the use of AVX512 instructions with vector lengths smaller than 512 bits. VAES and VPCLMULQDQ extensions indicate that VEX-prefixed AES-NI and pclmulqdq instructions are supported. All of these bits are needed for OpenSSL to use VAES to accelerate AES-GCM transforms. Reviewed by: corvink, kib, jhb MFC after: 2 weeks Sponsored by: Stormshield Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D39781 --- sys/amd64/vmm/x86.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/sys/amd64/vmm/x86.c b/sys/amd64/vmm/x86.c index 2d1b2385d1e8..a054b99c6481 100644 --- a/sys/amd64/vmm/x86.c +++ b/sys/amd64/vmm/x86.c @@ -431,18 +431,22 @@ x86_emulate_cpuid(struct vcpu *vcpu, uint64_t *rax, uint64_t *rbx, /* * Expose known-safe features. */ - regs[1] &= (CPUID_STDEXT_FSGSBASE | + regs[1] &= CPUID_STDEXT_FSGSBASE | CPUID_STDEXT_BMI1 | CPUID_STDEXT_HLE | CPUID_STDEXT_AVX2 | CPUID_STDEXT_SMEP | CPUID_STDEXT_BMI2 | CPUID_STDEXT_ERMS | CPUID_STDEXT_RTM | CPUID_STDEXT_AVX512F | + CPUID_STDEXT_AVX512DQ | CPUID_STDEXT_RDSEED | CPUID_STDEXT_SMAP | CPUID_STDEXT_AVX512PF | CPUID_STDEXT_AVX512ER | - CPUID_STDEXT_AVX512CD | CPUID_STDEXT_SHA); - regs[2] = 0; + CPUID_STDEXT_AVX512CD | CPUID_STDEXT_SHA | + CPUID_STDEXT_AVX512BW | + CPUID_STDEXT_AVX512VL; + regs[2] &= CPUID_STDEXT2_VAES | + CPUID_STDEXT2_VPCLMULQDQ; regs[3] &= CPUID_STDEXT3_MD_CLEAR; /* Advertise RDPID if it is enabled. */
