On Wed, Feb 03, 2016 at 10:07:27AM -0500, Konrad Rzeszutek Wilk wrote: > On Wed, Feb 03, 2016 at 02:34:47AM -0700, Jan Beulich wrote: > > >>> On 02.02.16 at 23:05, <konrad.w...@oracle.com> wrote: > > > This is getting more and more bizzare. > > > > > > I realized that this machine has VMCS shadowing so Xen does not trap on > > > any vmwrite or vmread. Unless I update the VMCS shadowing bitmap - which > > > I did for vmwrite and vmread to get a better view of this. It never > > > traps on VIRTUAL_APIC_PAGE_ADDR accesses. It does trap on: > > > VIRTUAL_PROCESSOR_ID, > > > VM_EXIT_MSR_LOAD_ADDR and GUEST_[ES,DS,FS,GS,TR]_SELECTORS. > > > > > > (It may also trap on IO_BITMAP_A,B but I didn't print that out). > > > > > > To confirm that the VMCS that will be given to the L2 guest is correct > > > I added some printking of some states that ought to be pretty OK such > > > as HOST_RIP or HOST_RSP - which are all 0! > > > > But did you also check what the field of interest starts out as? > > I will do that.
Attached is the patch against staging (I had used 4.6 before as the only change between those two was the dynamic mapping/unmapping of the vmread/vmwrite bitmap). (d1) (d1) drive 0x000f6270: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=524288000 (d1) (d1) Space available for UMB: cb800-ed000, f5d30-f6270 (d1) Returned 258048 bytes of ZoneHigh (d1) e820 map has 7 items: (d1) 0: 0000000000000000 - 000000000009fc00 = 1 RAM (d1) 1: 000000000009fc00 - 00000000000a0000 = 2 RESERVED (d1) 2: 00000000000f0000 - 0000000000100000 = 2 RESERVED (d1) 3: 0000000000100000 - 00000000effff000 = 1 RAM (d1) 4: 00000000effff000 - 00000000f0000000 = 2 RESERVED (d1) 5: 00000000fc000000 - 0000000100000000 = 2 RESERVED (d1) 6: 0000000100000000 - 000000020f800000 = 1 RAM (d1) enter handle_19: (d1) NULL (d1) Booting from Hard Disk... (d1) Booting from 0000:7c00 (XEN) stdvga.c:178:d1v0 leaving stdvga mode (XEN) stdvga.c:173:d1v0 entering stdvga mode (XEN) nvmx_handle_vmwrite 1: IO_BITMAP_A(2000)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 0: IO_BITMAP_A(2000)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: IO_BITMAP_B(2002)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 2: IO_BITMAP_A(2000)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: VIRTUAL_APIC_PAGE_ADDR(2012)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 2: IO_BITMAP_B(2002)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: (2006)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 2: VIRTUAL_APIC_PAGE_ADDR(2012)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: VM_EXIT_MSR_LOAD_ADDR(2008)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 3: IO_BITMAP_A(2000)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 3: IO_BITMAP_B(2002)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 2: MSR_BITMAP(2004)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: MSR_BITMAP(2004)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 0: MSR_BITMAP(2004)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 3: (2006)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 3: VM_EXIT_MSR_LOAD_ADDR(2008)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 3: MSR_BITMAP(2004)[0=ffffffffffffffff] (XEN) nvmx_handle_vmwrite 1: VIRTUAL_PROCESSOR_ID(0)[0=9] (XEN) nvmx_handle_vmwrite 0: VIRTUAL_PROCESSOR_ID(0)[0=9] (XEN) nvmx_handle_vmwrite 1: MSR_BITMAP(2004)[ffffffffffffffff=1367ed000] (XEN) nvmx_handle_vmwrite 3: VIRTUAL_PROCESSOR_ID(0)[0=9] (XEN) nvmx_handle_vmwrite 0: MSR_BITMAP(2004)[ffffffffffffffff=1367ed000] (XEN) nvmx_handle_vmwrite 1: VM_EXIT_MSR_LOAD_ADDR(2008)[ffffffffffffffff=135639f40] (XEN) nvmx_handle_vmwrite 0: VM_EXIT_MSR_LOAD_ADDR(2008)[ffffffffffffffff=135666f40] (XEN) nvmx_handle_vmwrite 2: VIRTUAL_PROCESSOR_ID(0)[0=9] (XEN) nvmx_handle_vmwrite 3: MSR_BITMAP(2004)[ffffffffffffffff=1367ed000] (XEN) nvmx_handle_vmwrite 3: VM_EXIT_MSR_LOAD_ADDR(2008)[ffffffffffffffff=135693f40] (XEN) nvmx_handle_vmwrite 2: MSR_BITMAP(2004)[ffffffffffffffff=1367ed000] (XEN) nvmx_handle_vmwrite 2: VM_EXIT_MSR_LOAD_ADDR(2008)[ffffffffffffffff=135701f40] (XEN) nvmx_handle_vmwrite 3: VM_EXIT_MSR_LOAD_ADDR(2008)[135639f40=13763cf40] (XEN) nvmx_handle_vmwrite 1: VM_EXIT_MSR_LOAD_ADDR(2008)[135701f40=137a3cf40] (XEN) nvmx_handle_vmwrite 0: VM_EXIT_MSR_LOAD_ADDR(2008)[135693f40=13783cf40] (XEN) nvmx_handle_vmwrite 2: VM_EXIT_MSR_LOAD_ADDR(2008)[135666f40=137c3cf40] (XEN) nvmx_handle_vmwrite 3: (800)[0=0] (XEN) nvmx_handle_vmwrite 3: (804)[0=0] (XEN) nvmx_handle_vmwrite 3: (806)[0=0] (XEN) nvmx_handle_vmwrite 3: (80a)[0=0] (XEN) nvmx_handle_vmwrite 3: (80e)[0=0] (XEN) vvmx.c:2566:d1v3 Unknown nested vmexit reason 80000021. (XEN) Failed vm entry (exit reason 0x80000021) caused by invalid guest state (4). (XEN) ************* VMCS Area ************** (XEN) *** Guest State *** (XEN) CR0: actual=0x0000000000000030, shadow=0x0000000000000000, gh_mask=ffffffffffffffff (XEN) CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffffff (XEN) CR3 = 0x0000000080c06000 (XEN) RSP = 0x0000000000000000 (0x0000000000000000) RIP = 0x0000000000000000 (0x0000000000000000) (XEN) RFLAGS=0x00000002 (0x00000002) DR7 = 0x0000000000000400 (XEN) Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 (XEN) sel attr limit base (XEN) CS: 0000 00000 00000000 0000000000000000 (XEN) DS: 0000 00000 00000000 0000000000000000 (XEN) SS: 0000 00000 00000000 0000000000000000 (XEN) ES: 0000 00000 00000000 0000000000000000 (XEN) FS: 0000 00000 00000000 0000000000000000 (XEN) GS: 0000 00000 00000000 0000000000000000 (XEN) GDTR: 00000000 0000000000000000 (XEN) LDTR: 0000 00000 00000000 0000000000000000 (XEN) IDTR: 00000000 0000000000000000 (XEN) TR: 0000 00000 00000000 0000000000000000 (XEN) EFER = 0x0000000000000800 PAT = 0x0000000000000000 (XEN) PreemptionTimer = 0x00000000 SM Base = 0x00000000 (XEN) DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 (XEN) Interruptibility = 00000000 ActivityState = 00000000 (XEN) VIRTUAL_APIC_PAGE_ADDR = 0x0000000000000000 TPR threshold = 0x0000000000000000 (XEN) APIC_ACCESS_ADDR = 0x0000000000000000 (XEN) *** Host State *** (XEN) RIP = 0xffff82d0801f8f80 (vmx_asm_vmexit_handler) RSP = 0xffff834007897f90 (XEN) CS=e008 SS=0000 DS=0000 ES=0000 FS=0000 GS=0000 TR=e040 (XEN) FSBase=0000000000000000 GSBase=0000000000000000 TRBase=ffff83400789eb80 (XEN) GDTBase=ffff83400788f000 IDTBase=ffff83400789b000 (XEN) CR0=0000000080050033 CR3=00000040007a0000 CR4=00000000001526e0 (XEN) Sysenter RSP=ffff834007897fc0 CS:RIP=e008:ffff82d08023eb30 (XEN) EFER = 0x0000000000000000 PAT = 0x0000050100070406 (XEN) *** Control State *** (XEN) PinBased=0000003f CPUBased=b62065fa SecondaryExec=000054eb (XEN) EntryControls=000011fb ExitControls=001fefff (XEN) ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 (XEN) VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000 (XEN) VMExit: intr_info=00000000 errcode=00000000 ilen=00000006 (XEN) reason=80000021 qualification=0000000000000004 (XEN) IDTVectoring: info=00000000 errcode=00000000 (XEN) TSC Offset = 0xffef355833aa1cd5 (XEN) TPR Threshold = 0x00 PostedIntrVec = 0x00 (XEN) EPT pointer = 0x00000040007d101e EPTP index = 0x0000 (XEN) PLE Gap=00000080 Window=00001000 (XEN) Virtual processor ID = 0x0050 VMfunc controls = 0000000000000000 (XEN) ************************************** (XEN) domain_crash called from vmx.c:2845 (XEN) Domain 1 (vcpu#3) crashed on cpu#54: (XEN) ----[ Xen-4.7-unstable x86_64 debug=y Tainted: C ]---- (XEN) CPU: 54 (XEN) RIP: 0000:[<0000000000000000>] (XEN) RFLAGS: 0000000000000002 CONTEXT: hvm guest (d1v3) (XEN) rax: 0000000000000000 rbx: 0000000000000000 rcx: 0000000000000000 (XEN) rdx: 00000000078bfbff rsi: 0000000000000000 rdi: 0000000000000000 (XEN) rbp: 0000000000000000 rsp: 0000000000000000 r8: 0000000000000000 (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 0000000000000000 (XEN) r12: 0000000000000000 r13: 0000000000000000 r14: 0000000000000000 (XEN) r15: 0000000000000000 cr0: 0000000000000010 cr4: 0000000000000000 (XEN) cr3: 0000000080c06000 cr2: 0000000000000000 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0000 cs: 0000 I am going to augment more of the tracing to get an idea of what is happening before this.
diff --git a/tools/xentrace/formats b/tools/xentrace/formats index 5d7b72a..d44f2fa 100644 --- a/tools/xentrace/formats +++ b/tools/xentrace/formats @@ -42,8 +42,8 @@ 0x00081401 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) nVMENTRY 0x00081402 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) nVMEXIT [ exitcode = 0x%(1)08x, rIP = 0x%(2)08x ] 0x00081502 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) nVMEXIT [ exitcode = 0x%(1)08x, rIP = 0x%(3)08x%(2)08x ] -0x00082001 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) PF_XEN [ errorcode = 0x%(2)02x, virt = 0x%(1)08x ] -0x00082101 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) PF_XEN [ errorcode = 0x%(3)02x, virt = 0x%(2)08x%(1)08x ] +0x00082401 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) nL1 [ errorcode = 0x%(2)02x, virt = 0x%(1)08x ] +0x00082501 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) nL1 [ errorcode = 0x%(3)02x, virt = 0x%(2)08x%(1)08x ] 0x00082002 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) PF_INJECT [ errorcode = 0x%(1)02x, virt = 0x%(2)08x ] 0x00082102 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) PF_INJECT [ errorcode = 0x%(1)02x, virt = 0x%(3)08x%(2)08x ] 0x00082003 CPU%(cpu)d %(tsc)d (+%(reltsc)8d) INJ_EXC [ vector = 0x%(1)02x, errorcode = 0x%(2)04x ] diff --git a/xen/arch/x86/hvm/vmx/vmcs.c b/xen/arch/x86/hvm/vmx/vmcs.c index 5bc3c74..964ef01 100644 --- a/xen/arch/x86/hvm/vmx/vmcs.c +++ b/xen/arch/x86/hvm/vmx/vmcs.c @@ -1825,6 +1825,12 @@ void vmcs_dump_vcpu(struct vcpu *v) SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY ) printk("InterruptStatus = %04x\n", vmr16(GUEST_INTR_STATUS)); + if ( cpu_has_vmx_tpr_shadow ) + printk("VIRTUAL_APIC_PAGE_ADDR = 0x%016lx TPR threshold = 0x%016lx\n", + vmr(VIRTUAL_APIC_PAGE_ADDR), vmr(TPR_THRESHOLD)); + if ( cpu_has_vmx_virtualize_apic_accesses ) + printk("APIC_ACCESS_ADDR = 0x%016lx\n", + vmr(APIC_ACCESS_ADDR)); printk("*** Host State ***\n"); printk("RIP = 0x%016lx (%ps) RSP = 0x%016lx\n", vmr(HOST_RIP), (void *)vmr(HOST_RIP), vmr(HOST_RSP)); diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c index 04dde83..565af29 100644 --- a/xen/arch/x86/hvm/vmx/vmx.c +++ b/xen/arch/x86/hvm/vmx/vmx.c @@ -2970,6 +2970,7 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs) unsigned long exit_qualification, exit_reason, idtv_info, intr_info = 0; unsigned int vector = 0; struct vcpu *v = current; + bool_t vcpu_guestmode; __vmread(GUEST_RIP, ®s->rip); __vmread(GUEST_RSP, ®s->rsp); @@ -2986,12 +2987,17 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs) __vmread(VM_EXIT_REASON, &exit_reason); + if ( nestedhvm_enabled(v->domain) && nestedhvm_vcpu_in_guestmode(v) ) + vcpu_guestmode = 1; + if ( hvm_long_mode_enabled(v) ) - HVMTRACE_ND(VMEXIT64, 0, 1/*cycles*/, 3, exit_reason, + HVMTRACE_ND(VMEXIT64, vcpu_guestmode ? TRC_HVM_NESTEDFLAG : 0, + 1/*cycles*/, 3, exit_reason, (uint32_t)regs->eip, (uint32_t)((uint64_t)regs->eip >> 32), 0, 0, 0); else - HVMTRACE_ND(VMEXIT, 0, 1/*cycles*/, 2, exit_reason, + HVMTRACE_ND(VMEXIT, vcpu_guestmode ? TRC_HVM_NESTEDFLAG : 0, + 1/*cycles*/, 2, exit_reason, (uint32_t)regs->eip, 0, 0, 0, 0); @@ -3069,7 +3075,19 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs) { paging_update_nestedmode(v); if ( nvmx_n2_vmexit_handler(regs, exit_reason) ) + { + if ( hvm_long_mode_enabled(v) ) + HVMTRACE_ND(PF_XEN64, TRC_HVM_NESTEDFLAG , + 1/*cycles*/, 3, exit_reason, + (uint32_t)regs->eip, (uint32_t)((uint64_t)regs->eip >> 32), + 0, 0, 0); + else + HVMTRACE_ND(PF_XEN, TRC_HVM_NESTEDFLAG, + 1/*cycles*/, 2, exit_reason, + (uint32_t)regs->eip, + 0, 0, 0, 0); goto out; + } } if ( unlikely(exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY) ) diff --git a/xen/arch/x86/hvm/vmx/vvmx.c b/xen/arch/x86/hvm/vmx/vvmx.c index 271ec70..974e89f 100644 --- a/xen/arch/x86/hvm/vmx/vvmx.c +++ b/xen/arch/x86/hvm/vmx/vvmx.c @@ -101,7 +101,14 @@ int nvmx_vcpu_initialise(struct vcpu *v) set_bit(IO_BITMAP_B, vw); set_bit(VMCS_HIGH(IO_BITMAP_B), vw); + set_bit(VIRTUAL_APIC_PAGE_ADDR, vw); + + unmap_domain_page(vw); + + vw = __map_domain_page(vmread_bitmap); + set_bit(VIRTUAL_APIC_PAGE_ADDR, vw); unmap_domain_page(vw); + } nvmx->ept.enabled = 0; @@ -692,12 +699,40 @@ static void nvmx_update_virtual_apic_address(struct vcpu *v) p2m_type_t p2mt; unsigned long vapic_gpfn; struct page_info *vapic_pg; + u32 sec_ctrl = __n2_secondary_exec_control(v); + + vapic_gpfn = __get_vvmcs(nvcpu->nv_vvmcx, VIRTUAL_APIC_PAGE_ADDR); - vapic_gpfn = __get_vvmcs(nvcpu->nv_vvmcx, VIRTUAL_APIC_PAGE_ADDR) >> PAGE_SHIFT; - vapic_pg = get_page_from_gfn(v->domain, vapic_gpfn, &p2mt, P2M_ALLOC); - ASSERT(vapic_pg && !p2m_is_paging(p2mt)); - __vmwrite(VIRTUAL_APIC_PAGE_ADDR, page_to_maddr(vapic_pg)); - put_page(vapic_pg); + vapic_pg = get_page_from_gfn(v->domain, vapic_gpfn >> PAGE_SHIFT, &p2mt, P2M_ALLOC); + if ( !vapic_pg ) + { + unsigned int i; + printk("%s: vCPU%d 0x%lx(vAPIC) 0x%lx(APIC), 0x%lx(TPR) ctrl=%x sec=%x %s%s%s%s\n", + __func__,v->vcpu_id, + vapic_gpfn, + __get_vvmcs(nvcpu->nv_vvmcx, APIC_ACCESS_ADDR), + __get_vvmcs(nvcpu->nv_vvmcx, TPR_THRESHOLD), + ctrl, sec_ctrl, + sec_ctrl & SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES ? "APIC" : "", + sec_ctrl & SECONDARY_EXEC_APIC_REGISTER_VIRT ? "APIC virt" : "", + sec_ctrl & SECONDARY_EXEC_ENABLE_VMCS_SHADOWING ? "VMCS shadow" : "", + sec_ctrl & SECONDARY_EXEC_ENABLE_VIRT_EXCEPTIONS ? "v excpt" : ""); + for (i = 0; i < 3; i++) + printk("%s: %s = 0x%lx updated %ld.\n", __func__, + i == 0 ? "TPR threshold" : + (i == 1 ? "Virtual APIC" : + (i == 2 ? "APIC address" : "" )), + nvcpu->debug[i], nvcpu->debug_cnt[i]); + + printk("HOST_RIP=0x%lx HOST_RSP=0x%lx\n", __get_vvmcs(nvcpu->nv_vvmcx, HOST_RIP), + __get_vvmcs(nvcpu->nv_vvmcx, HOST_RSP)); + __vmwrite(VIRTUAL_APIC_PAGE_ADDR, vapic_gpfn); + } else { + ASSERT(vapic_pg); + ASSERT(vapic_pg && !p2m_is_paging(p2mt)); + __vmwrite(VIRTUAL_APIC_PAGE_ADDR, page_to_maddr(vapic_pg)); + put_page(vapic_pg); + } } else __vmwrite(VIRTUAL_APIC_PAGE_ADDR, 0); @@ -1729,12 +1764,17 @@ int nvmx_handle_vmread(struct cpu_user_regs *regs) struct nestedvcpu *nvcpu = &vcpu_nestedhvm(v); u64 value = 0; int rc; + unsigned long operand; rc = decode_vmx_inst(regs, &decode, NULL, 0); if ( rc != X86EMUL_OKAY ) return rc; - value = __get_vvmcs(nvcpu->nv_vvmcx, reg_read(regs, decode.reg2)); + operand = reg_read(regs, decode.reg2); + value = __get_vvmcs(nvcpu->nv_vvmcx, operand); + + if ( operand == VIRTUAL_APIC_PAGE_ADDR ) + printk("%s: val=%lx\n", __func__, value); switch ( decode.type ) { case VMX_INST_MEMREG_TYPE_MEMORY: @@ -1756,29 +1796,62 @@ int nvmx_handle_vmwrite(struct cpu_user_regs *regs) struct vcpu *v = current; struct vmx_inst_decoded decode; struct nestedvcpu *nvcpu = &vcpu_nestedhvm(v); - unsigned long operand; + unsigned long operand, val; u64 vmcs_encoding; bool_t okay = 1; + char *msg = NULL; if ( decode_vmx_inst(regs, &decode, &operand, 0) != X86EMUL_OKAY ) return X86EMUL_EXCEPTION; vmcs_encoding = reg_read(regs, decode.reg2); + val = __get_vvmcs(nvcpu->nv_vvmcx, vmcs_encoding); __set_vvmcs(nvcpu->nv_vvmcx, vmcs_encoding, operand); switch ( vmcs_encoding & ~VMCS_HIGH(0) ) { case IO_BITMAP_A: okay = _map_io_bitmap(v, IO_BITMAP_A); + msg="IO_BITMAP_A"; break; case IO_BITMAP_B: okay = _map_io_bitmap(v, IO_BITMAP_B); + msg="IO_BITMAP_B"; break; case MSR_BITMAP: + msg="MSR_BITMAP"; okay = _map_msr_bitmap(v); break; + case TPR_THRESHOLD: + msg="TPR_THRESHOLD"; + nvcpu->debug[0] = operand; + nvcpu->debug_cnt[0] ++; + okay = 1; + break; + case VIRTUAL_APIC_PAGE_ADDR: + msg="VIRTUAL_APIC_PAGE_ADDR"; + nvcpu->debug[1] = operand; + nvcpu->debug_cnt[1] ++; + okay = 1; + break; + case APIC_ACCESS_ADDR: + msg="APIC_ACCESS_ADDR"; + nvcpu->debug[2] = operand; + nvcpu->debug_cnt[1] ++; + okay = 1; + break; + case VM_EXIT_MSR_LOAD_ADDR: + msg="VM_EXIT_MSR_LOAD_ADDR"; + break; + case VIRTUAL_PROCESSOR_ID: + msg="VIRTUAL_PROCESSOR_ID"; + default: + okay = 1; + break; } + printk("%s %d: %s(%lx)[%lx=%lx]\n", __func__, v->vcpu_id, + msg ? msg : "",vmcs_encoding, val, operand); vmreturn(regs, okay ? VMSUCCEED : VMFAIL_VALID); diff --git a/xen/include/asm-x86/hvm/vcpu.h b/xen/include/asm-x86/hvm/vcpu.h index 152d9f3..b69a584 100644 --- a/xen/include/asm-x86/hvm/vcpu.h +++ b/xen/include/asm-x86/hvm/vcpu.h @@ -130,6 +130,9 @@ struct nestedvcpu { /* L2's control-resgister, just as the L2 sees them. */ unsigned long guest_cr[5]; + + unsigned long debug[3]; /* 0 - TPR, 1 - VIRTUAL APIC, 2 - APIC_ADDR */ + unsigned long debug_cnt[3]; /* 0 - TPR, 1 - VIRTUAL APIC, 2 - APIC_ADDR */ }; #define vcpu_nestedhvm(v) ((v)->arch.hvm_vcpu.nvcpu)
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