diff options
Diffstat (limited to 'usr/src/uts/intel/sys/vmm.h')
| -rw-r--r-- | usr/src/uts/intel/sys/vmm.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/usr/src/uts/intel/sys/vmm.h b/usr/src/uts/intel/sys/vmm.h index 50d76ab17c..45e0fe8f34 100644 --- a/usr/src/uts/intel/sys/vmm.h +++ b/usr/src/uts/intel/sys/vmm.h @@ -406,4 +406,51 @@ enum vm_create_flags { VCF_RESERVOIR_MEM = (1 << 0), }; +/* + * Describes an entry for `cpuid` emulation. + * Used internally by bhyve (kernel) in addition to exposed ioctl(2) interface. + */ +struct vcpu_cpuid_entry { + uint32_t vce_function; + uint32_t vce_index; + uint32_t vce_flags; + uint32_t vce_eax; + uint32_t vce_ebx; + uint32_t vce_ecx; + uint32_t vce_edx; + uint32_t _pad; +}; + +/* + * Defined flags for vcpu_cpuid_entry`vce_flags are below. + */ + +/* Use index (ecx) input value when matching entry */ +#define VCE_FLAG_MATCH_INDEX (1 << 0) + +/* All valid flacts for vcpu_cpuid_entry`vce_flags */ +#define VCE_FLAGS_VALID VCE_FLAG_MATCH_INDEX + +/* + * Defined flags for vcpu_cpuid configuration are below. + * These are used by both the ioctl(2) interface via vm_vcpu_cpuid_config and + * internally in the kernel vmm. + */ + +/* Use legacy hard-coded cpuid masking tables applied to the host CPU */ +#define VCC_FLAG_LEGACY_HANDLING (1 << 0) +/* + * Emulate Intel-style fallback behavior (emit highest "standard" entry) if the + * queried function/index do not match. If not set, emulate AMD-style, where + * all zeroes are returned in such cases. + */ +#define VCC_FLAG_INTEL_FALLBACK (1 << 1) + +/* All valid flacts for vm_vcpu_cpuid_config`vvcc_flags */ +#define VCC_FLAGS_VALID \ + (VCC_FLAG_LEGACY_HANDLING | VCC_FLAG_INTEL_FALLBACK) + +/* Maximum vcpu_cpuid_entry records per vCPU */ +#define VMM_MAX_CPUID_ENTRIES 256 + #endif /* _VMM_H_ */ |