diff options
Diffstat (limited to 'sys/amd64/vmm/intel/vmx.c')
| -rw-r--r-- | sys/amd64/vmm/intel/vmx.c | 45 |
1 files changed, 20 insertions, 25 deletions
diff --git a/sys/amd64/vmm/intel/vmx.c b/sys/amd64/vmm/intel/vmx.c index 7a9cfb8..b185c57 100644 --- a/sys/amd64/vmm/intel/vmx.c +++ b/sys/amd64/vmm/intel/vmx.c @@ -63,7 +63,6 @@ __FBSDID("$FreeBSD$"); #include "vmx.h" #include "x86.h" #include "vmx_controls.h" -#include "vmm_instruction_emul.h" #define PINBASED_CTLS_ONE_SETTING \ (PINBASED_EXTINT_EXITING | \ @@ -1150,23 +1149,11 @@ vmx_emulate_cr_access(struct vmx *vmx, int vcpu, uint64_t exitqual) } static int -vmx_lapic_fault(struct vm *vm, int cpu, - uint64_t gpa, uint64_t rip, int inst_length, - uint64_t cr3, uint64_t ept_qual) +vmx_ept_fault(struct vm *vm, int cpu, + uint64_t gla, uint64_t gpa, uint64_t rip, int inst_length, + uint64_t cr3, uint64_t ept_qual, struct vie *vie) { - int read, write, handled; - struct vie vie; - - /* - * For this to be a legitimate access to the local apic: - * - the GPA in the local apic page - * - the GPA must be aligned on a 16 byte boundary - */ - if (gpa < DEFAULT_APIC_BASE || gpa >= DEFAULT_APIC_BASE + PAGE_SIZE) - return (UNHANDLED); - - if ((gpa & 0xF) != 0) - return (UNHANDLED); + int read, write, error; /* EPT violation on an instruction fetch doesn't make sense here */ if (ept_qual & EPT_VIOLATION_INST_FETCH) @@ -1188,15 +1175,22 @@ vmx_lapic_fault(struct vm *vm, int cpu, } /* Fetch, decode and emulate the faulting instruction */ - if (vmm_fetch_instruction(vm, rip, inst_length, cr3, &vie) != 0) + if (vmm_fetch_instruction(vm, cpu, rip, inst_length, cr3, vie) != 0) return (UNHANDLED); - if (vmm_decode_instruction(&vie) != 0) + if (vmm_decode_instruction(vm, cpu, gla, vie) != 0) return (UNHANDLED); - handled = lapic_mmio(vm, cpu, gpa - DEFAULT_APIC_BASE, read, &vie); + /* + * Check if this is a local apic access + */ + if (gpa < DEFAULT_APIC_BASE || gpa >= DEFAULT_APIC_BASE + PAGE_SIZE) + return (UNHANDLED); - return (handled); + error = vmm_emulate_instruction(vm, cpu, gpa, vie, + lapic_mmio_read, lapic_mmio_write, 0); + + return (error ? UNHANDLED : HANDLED); } static int @@ -1206,7 +1200,7 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit) struct vmcs *vmcs; struct vmxctx *vmxctx; uint32_t eax, ecx, edx; - uint64_t qual, gpa, cr3, intr_info; + uint64_t qual, gla, gpa, cr3, intr_info; handled = 0; vmcs = &vmx->vmcs[vcpu]; @@ -1299,11 +1293,12 @@ vmx_exit_process(struct vmx *vmx, int vcpu, struct vm_exit *vmexit) handled = vmx_handle_cpuid(vmx->vm, vcpu, vmxctx); break; case EXIT_REASON_EPT_FAULT: + gla = vmcs_gla(); gpa = vmcs_gpa(); cr3 = vmcs_guest_cr3(); - handled = vmx_lapic_fault(vmx->vm, vcpu, - gpa, vmexit->rip, vmexit->inst_length, - cr3, qual); + handled = vmx_ept_fault(vmx->vm, vcpu, gla, gpa, + vmexit->rip, vmexit->inst_length, + cr3, qual, &vmexit->u.paging.vie); if (!handled) { vmexit->exitcode = VM_EXITCODE_PAGING; vmexit->u.paging.cr3 = cr3; |
