diff options
Diffstat (limited to 'sys/amd64/vmm/x86.c')
| -rw-r--r-- | sys/amd64/vmm/x86.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/sys/amd64/vmm/x86.c b/sys/amd64/vmm/x86.c index 669fa4b..47ba975 100644 --- a/sys/amd64/vmm/x86.c +++ b/sys/amd64/vmm/x86.c @@ -29,13 +29,17 @@ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); +#include <sys/param.h> #include <sys/types.h> #include <sys/systm.h> +#include <sys/cpuset.h> #include <machine/cpufunc.h> #include <machine/md_var.h> #include <machine/specialreg.h> +#include <machine/vmm.h> + #include "x86.h" #define CPUID_VM_HIGH 0x40000000 @@ -43,10 +47,12 @@ __FBSDID("$FreeBSD$"); static const char bhyve_id[12] = "BHyVE BHyVE "; int -x86_emulate_cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx, - uint32_t vcpu_id) +x86_emulate_cpuid(struct vm *vm, int vcpu_id, + uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx) { + int error; unsigned int func, regs[4]; + enum x2apic_state x2apic_state; func = *eax; @@ -91,6 +97,12 @@ x86_emulate_cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx, case CPUID_0000_0001: do_cpuid(1, regs); + error = vm_get_x2apic_state(vm, vcpu_id, &x2apic_state); + if (error) { + panic("x86_emulate_cpuid: error %d " + "fetching x2apic state", error); + } + /* * Override the APIC ID only in ebx */ @@ -102,7 +114,11 @@ x86_emulate_cpuid(uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx, * Advertise x2APIC capability and Hypervisor guest. */ regs[2] &= ~(CPUID2_VMX | CPUID2_EST | CPUID2_TM2); - regs[2] |= CPUID2_X2APIC | CPUID2_HV; + + regs[2] |= CPUID2_HV; + + if (x2apic_state != X2APIC_DISABLED) + regs[2] |= CPUID2_X2APIC; /* * Hide xsave/osxsave/avx until the FPU save/restore |
