kvm, emulator: Rename VendorSpecific flag
Call it EmulateOnUD which is exactly what we're trying to do with
vendor-specific instructions.
Rename ->only_vendor_specific_insn to something shorter, while at it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 92a176a..24ec121 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -274,7 +274,7 @@
bool guest_mode; /* guest running a nested guest */
bool perm_ok; /* do not check permissions if true */
- bool only_vendor_specific_insn;
+ bool ud; /* inject an #UD if host doesn't support insn */
bool have_exception;
struct x86_exception exception;
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index d554d96..5418015 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -130,7 +130,7 @@
#define Mov (1<<20)
/* Misc flags */
#define Prot (1<<21) /* instruction generates #UD if not in prot-mode */
-#define VendorSpecific (1<<22) /* Vendor specific instruction */
+#define EmulateOnUD (1<<22) /* Emulate if unsupported by the host */
#define NoAccess (1<<23) /* Don't access memory (lea/invlpg/verr etc) */
#define Op3264 (1<<24) /* Operand is 64b in long mode, 32b otherwise */
#define Undefined (1<<25) /* No Such Instruction */
@@ -3502,7 +3502,7 @@
static const struct opcode group7_rm3[] = {
DIP(SrcNone | Prot | Priv, vmrun, check_svme_pa),
- II(SrcNone | Prot | VendorSpecific, em_vmmcall, vmmcall),
+ II(SrcNone | Prot | EmulateOnUD, em_vmmcall, vmmcall),
DIP(SrcNone | Prot | Priv, vmload, check_svme_pa),
DIP(SrcNone | Prot | Priv, vmsave, check_svme_pa),
DIP(SrcNone | Prot | Priv, stgi, check_svme),
@@ -3587,7 +3587,7 @@
II(SrcMem16 | Mov | Priv, em_lmsw, lmsw),
II(SrcMem | ByteOp | Priv | NoAccess, em_invlpg, invlpg),
}, {
- I(SrcNone | Priv | VendorSpecific, em_vmcall),
+ I(SrcNone | Priv | EmulateOnUD, em_vmcall),
EXT(0, group7_rm1),
N, EXT(0, group7_rm3),
II(SrcNone | DstMem | Mov, em_smsw, smsw), N,
@@ -3810,7 +3810,7 @@
static const struct opcode twobyte_table[256] = {
/* 0x00 - 0x0F */
G(0, group6), GD(0, &group7), N, N,
- N, I(ImplicitOps | VendorSpecific, em_syscall),
+ N, I(ImplicitOps | EmulateOnUD, em_syscall),
II(ImplicitOps | Priv, em_clts, clts), N,
DI(ImplicitOps | Priv, invd), DI(ImplicitOps | Priv, wbinvd), N, N,
N, D(ImplicitOps | ModRM), N, N,
@@ -3830,8 +3830,8 @@
IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc),
II(ImplicitOps | Priv, em_rdmsr, rdmsr),
IIP(ImplicitOps, em_rdpmc, rdpmc, check_rdpmc),
- I(ImplicitOps | VendorSpecific, em_sysenter),
- I(ImplicitOps | Priv | VendorSpecific, em_sysexit),
+ I(ImplicitOps | EmulateOnUD, em_sysenter),
+ I(ImplicitOps | Priv | EmulateOnUD, em_sysexit),
N, N,
N, N, N, N, N, N, N, N,
/* 0x40 - 0x4F */
@@ -4268,7 +4268,7 @@
if (ctxt->d == 0 || (ctxt->d & NotImpl))
return EMULATION_FAILED;
- if (!(ctxt->d & VendorSpecific) && ctxt->only_vendor_specific_insn)
+ if (!(ctxt->d & EmulateOnUD) && ctxt->ud)
return EMULATION_FAILED;
if (mode == X86EMUL_MODE_PROT64 && (ctxt->d & Stack))
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d00d884..15f9540 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5108,8 +5108,7 @@
ctxt->have_exception = false;
ctxt->perm_ok = false;
- ctxt->only_vendor_specific_insn
- = emulation_type & EMULTYPE_TRAP_UD;
+ ctxt->ud = emulation_type & EMULTYPE_TRAP_UD;
r = x86_decode_insn(ctxt, insn, insn_len);