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Commit 717746e3 authored by Avi Kivity's avatar Avi Kivity
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KVM: x86 emulator: drop vcpu argument from cr/dr/cpl/msr callbacks 

Making the emulator caller agnostic.
Signed-off-by: default avatarAvi Kivity <avi@redhat.com>
parent 4bff1e86
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Showing with 73 additions and 59 deletions
arch/x86/include/asm/kvm_emulate.h
View file @ 717746e3
...@@ -176,13 +176,13 @@ struct x86_emulate_ops { ...@@ -176,13 +176,13 @@ struct x86_emulate_ops {
int seg); int seg);
void (*get_gdt)(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt); void (*get_gdt)(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt);
void (*get_idt)(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt); void (*get_idt)(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt);
ulong (*get_cr)(int cr, struct kvm_vcpu *vcpu); ulong (*get_cr)(struct x86_emulate_ctxt *ctxt, int cr);
int (*set_cr)(int cr, ulong val, struct kvm_vcpu *vcpu); int (*set_cr)(struct x86_emulate_ctxt *ctxt, int cr, ulong val);
int (*cpl)(struct kvm_vcpu *vcpu); int (*cpl)(struct x86_emulate_ctxt *ctxt);
int (*get_dr)(int dr, unsigned long *dest, struct kvm_vcpu *vcpu); int (*get_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong *dest);
int (*set_dr)(int dr, unsigned long value, struct kvm_vcpu *vcpu); int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value);
int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data);
int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata);
void (*get_fpu)(struct x86_emulate_ctxt *ctxt); /* disables preempt */ void (*get_fpu)(struct x86_emulate_ctxt *ctxt); /* disables preempt */
void (*put_fpu)(struct x86_emulate_ctxt *ctxt); /* reenables preempt */ void (*put_fpu)(struct x86_emulate_ctxt *ctxt); /* reenables preempt */
int (*intercept)(struct kvm_vcpu *vcpu, int (*intercept)(struct kvm_vcpu *vcpu,
......
arch/x86/kvm/emulate.c
View file @ 717746e3
...@@ -596,7 +596,7 @@ static int __linearize(struct x86_emulate_ctxt *ctxt, ...@@ -596,7 +596,7 @@ static int __linearize(struct x86_emulate_ctxt *ctxt,
if (addr.ea > lim || (u32)(addr.ea + size - 1) > lim) if (addr.ea > lim || (u32)(addr.ea + size - 1) > lim)
goto bad; goto bad;
} }
cpl = ctxt->ops->cpl(ctxt->vcpu); cpl = ctxt->ops->cpl(ctxt);
rpl = ctxt->ops->get_segment_selector(ctxt, addr.seg) & 3; rpl = ctxt->ops->get_segment_selector(ctxt, addr.seg) & 3;
cpl = max(cpl, rpl); cpl = max(cpl, rpl);
if (!(desc.type & 8)) { if (!(desc.type & 8)) {
...@@ -1248,7 +1248,7 @@ static int load_segment_descriptor(struct x86_emulate_ctxt *ctxt, ...@@ -1248,7 +1248,7 @@ static int load_segment_descriptor(struct x86_emulate_ctxt *ctxt,
rpl = selector & 3; rpl = selector & 3;
dpl = seg_desc.dpl; dpl = seg_desc.dpl;
cpl = ops->cpl(ctxt->vcpu); cpl = ops->cpl(ctxt);
switch (seg) { switch (seg) {
case VCPU_SREG_SS: case VCPU_SREG_SS:
...@@ -1407,7 +1407,7 @@ static int emulate_popf(struct x86_emulate_ctxt *ctxt, ...@@ -1407,7 +1407,7 @@ static int emulate_popf(struct x86_emulate_ctxt *ctxt,
int rc; int rc;
unsigned long val, change_mask; unsigned long val, change_mask;
int iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT; int iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
int cpl = ops->cpl(ctxt->vcpu); int cpl = ops->cpl(ctxt);
rc = emulate_pop(ctxt, ops, &val, len); rc = emulate_pop(ctxt, ops, &val, len);
if (rc != X86EMUL_CONTINUE) if (rc != X86EMUL_CONTINUE)
...@@ -1852,7 +1852,7 @@ emulate_syscall(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1852,7 +1852,7 @@ emulate_syscall(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
setup_syscalls_segments(ctxt, ops, &cs, &ss); setup_syscalls_segments(ctxt, ops, &cs, &ss);
ops->get_msr(ctxt->vcpu, MSR_STAR, &msr_data); ops->get_msr(ctxt, MSR_STAR, &msr_data);
msr_data >>= 32; msr_data >>= 32;
cs_sel = (u16)(msr_data & 0xfffc); cs_sel = (u16)(msr_data & 0xfffc);
ss_sel = (u16)(msr_data + 8); ss_sel = (u16)(msr_data + 8);
...@@ -1871,17 +1871,17 @@ emulate_syscall(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1871,17 +1871,17 @@ emulate_syscall(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
#ifdef CONFIG_X86_64 #ifdef CONFIG_X86_64
c->regs[VCPU_REGS_R11] = ctxt->eflags & ~EFLG_RF; c->regs[VCPU_REGS_R11] = ctxt->eflags & ~EFLG_RF;
ops->get_msr(ctxt->vcpu, ops->get_msr(ctxt,
ctxt->mode == X86EMUL_MODE_PROT64 ? ctxt->mode == X86EMUL_MODE_PROT64 ?
MSR_LSTAR : MSR_CSTAR, &msr_data); MSR_LSTAR : MSR_CSTAR, &msr_data);
c->eip = msr_data; c->eip = msr_data;
ops->get_msr(ctxt->vcpu, MSR_SYSCALL_MASK, &msr_data); ops->get_msr(ctxt, MSR_SYSCALL_MASK, &msr_data);
ctxt->eflags &= ~(msr_data | EFLG_RF); ctxt->eflags &= ~(msr_data | EFLG_RF);
#endif #endif
} else { } else {
/* legacy mode */ /* legacy mode */
ops->get_msr(ctxt->vcpu, MSR_STAR, &msr_data); ops->get_msr(ctxt, MSR_STAR, &msr_data);
c->eip = (u32)msr_data; c->eip = (u32)msr_data;
ctxt->eflags &= ~(EFLG_VM | EFLG_IF | EFLG_RF); ctxt->eflags &= ~(EFLG_VM | EFLG_IF | EFLG_RF);
...@@ -1910,7 +1910,7 @@ emulate_sysenter(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1910,7 +1910,7 @@ emulate_sysenter(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
setup_syscalls_segments(ctxt, ops, &cs, &ss); setup_syscalls_segments(ctxt, ops, &cs, &ss);
ops->get_msr(ctxt->vcpu, MSR_IA32_SYSENTER_CS, &msr_data); ops->get_msr(ctxt, MSR_IA32_SYSENTER_CS, &msr_data);
switch (ctxt->mode) { switch (ctxt->mode) {
case X86EMUL_MODE_PROT32: case X86EMUL_MODE_PROT32:
if ((msr_data & 0xfffc) == 0x0) if ((msr_data & 0xfffc) == 0x0)
...@@ -1938,10 +1938,10 @@ emulate_sysenter(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1938,10 +1938,10 @@ emulate_sysenter(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
ops->set_cached_descriptor(ctxt, &ss, 0, VCPU_SREG_SS); ops->set_cached_descriptor(ctxt, &ss, 0, VCPU_SREG_SS);
ops->set_segment_selector(ctxt, ss_sel, VCPU_SREG_SS); ops->set_segment_selector(ctxt, ss_sel, VCPU_SREG_SS);
ops->get_msr(ctxt->vcpu, MSR_IA32_SYSENTER_EIP, &msr_data); ops->get_msr(ctxt, MSR_IA32_SYSENTER_EIP, &msr_data);
c->eip = msr_data; c->eip = msr_data;
ops->get_msr(ctxt->vcpu, MSR_IA32_SYSENTER_ESP, &msr_data); ops->get_msr(ctxt, MSR_IA32_SYSENTER_ESP, &msr_data);
c->regs[VCPU_REGS_RSP] = msr_data; c->regs[VCPU_REGS_RSP] = msr_data;
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
...@@ -1970,7 +1970,7 @@ emulate_sysexit(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops) ...@@ -1970,7 +1970,7 @@ emulate_sysexit(struct x86_emulate_ctxt *ctxt, struct x86_emulate_ops *ops)
cs.dpl = 3; cs.dpl = 3;
ss.dpl = 3; ss.dpl = 3;
ops->get_msr(ctxt->vcpu, MSR_IA32_SYSENTER_CS, &msr_data); ops->get_msr(ctxt, MSR_IA32_SYSENTER_CS, &msr_data);
switch (usermode) { switch (usermode) {
case X86EMUL_MODE_PROT32: case X86EMUL_MODE_PROT32:
cs_sel = (u16)(msr_data + 16); cs_sel = (u16)(msr_data + 16);
...@@ -2010,7 +2010,7 @@ static bool emulator_bad_iopl(struct x86_emulate_ctxt *ctxt, ...@@ -2010,7 +2010,7 @@ static bool emulator_bad_iopl(struct x86_emulate_ctxt *ctxt,
if (ctxt->mode == X86EMUL_MODE_VM86) if (ctxt->mode == X86EMUL_MODE_VM86)
return true; return true;
iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT; iopl = (ctxt->eflags & X86_EFLAGS_IOPL) >> IOPL_SHIFT;
return ops->cpl(ctxt->vcpu) > iopl; return ops->cpl(ctxt) > iopl;
} }
static bool emulator_io_port_access_allowed(struct x86_emulate_ctxt *ctxt, static bool emulator_io_port_access_allowed(struct x86_emulate_ctxt *ctxt,
...@@ -2187,7 +2187,7 @@ static void save_state_to_tss32(struct x86_emulate_ctxt *ctxt, ...@@ -2187,7 +2187,7 @@ static void save_state_to_tss32(struct x86_emulate_ctxt *ctxt,
{ {
struct decode_cache *c = &ctxt->decode; struct decode_cache *c = &ctxt->decode;
tss->cr3 = ops->get_cr(3, ctxt->vcpu); tss->cr3 = ops->get_cr(ctxt, 3);
tss->eip = c->eip; tss->eip = c->eip;
tss->eflags = ctxt->eflags; tss->eflags = ctxt->eflags;
tss->eax = c->regs[VCPU_REGS_RAX]; tss->eax = c->regs[VCPU_REGS_RAX];
...@@ -2215,7 +2215,7 @@ static int load_state_from_tss32(struct x86_emulate_ctxt *ctxt, ...@@ -2215,7 +2215,7 @@ static int load_state_from_tss32(struct x86_emulate_ctxt *ctxt,
struct decode_cache *c = &ctxt->decode; struct decode_cache *c = &ctxt->decode;
int ret; int ret;
if (ops->set_cr(3, tss->cr3, ctxt->vcpu)) if (ops->set_cr(ctxt, 3, tss->cr3))
return emulate_gp(ctxt, 0); return emulate_gp(ctxt, 0);
c->eip = tss->eip; c->eip = tss->eip;
ctxt->eflags = tss->eflags | 2; ctxt->eflags = tss->eflags | 2;
...@@ -2338,7 +2338,7 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt, ...@@ -2338,7 +2338,7 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt,
if (reason != TASK_SWITCH_IRET) { if (reason != TASK_SWITCH_IRET) {
if ((tss_selector & 3) > next_tss_desc.dpl || if ((tss_selector & 3) > next_tss_desc.dpl ||
ops->cpl(ctxt->vcpu) > next_tss_desc.dpl) ops->cpl(ctxt) > next_tss_desc.dpl)
return emulate_gp(ctxt, 0); return emulate_gp(ctxt, 0);
} }
...@@ -2382,7 +2382,7 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt, ...@@ -2382,7 +2382,7 @@ static int emulator_do_task_switch(struct x86_emulate_ctxt *ctxt,
&next_tss_desc); &next_tss_desc);
} }
ops->set_cr(0, ops->get_cr(0, ctxt->vcpu) | X86_CR0_TS, ctxt->vcpu); ops->set_cr(ctxt, 0, ops->get_cr(ctxt, 0) | X86_CR0_TS);
ops->set_cached_descriptor(ctxt, &next_tss_desc, 0, VCPU_SREG_TR); ops->set_cached_descriptor(ctxt, &next_tss_desc, 0, VCPU_SREG_TR);
ops->set_segment_selector(ctxt, tss_selector, VCPU_SREG_TR); ops->set_segment_selector(ctxt, tss_selector, VCPU_SREG_TR);
...@@ -2542,7 +2542,7 @@ static int em_rdtsc(struct x86_emulate_ctxt *ctxt) ...@@ -2542,7 +2542,7 @@ static int em_rdtsc(struct x86_emulate_ctxt *ctxt)
struct decode_cache *c = &ctxt->decode; struct decode_cache *c = &ctxt->decode;
u64 tsc = 0; u64 tsc = 0;
ctxt->ops->get_msr(ctxt->vcpu, MSR_IA32_TSC, &tsc); ctxt->ops->get_msr(ctxt, MSR_IA32_TSC, &tsc);
c->regs[VCPU_REGS_RAX] = (u32)tsc; c->regs[VCPU_REGS_RAX] = (u32)tsc;
c->regs[VCPU_REGS_RDX] = tsc >> 32; c->regs[VCPU_REGS_RDX] = tsc >> 32;
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
...@@ -2625,8 +2625,8 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt) ...@@ -2625,8 +2625,8 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
((new_val & X86_CR0_NW) && !(new_val & X86_CR0_CD))) ((new_val & X86_CR0_NW) && !(new_val & X86_CR0_CD)))
return emulate_gp(ctxt, 0); return emulate_gp(ctxt, 0);
cr4 = ctxt->ops->get_cr(4, ctxt->vcpu); cr4 = ctxt->ops->get_cr(ctxt, 4);
ctxt->ops->get_msr(ctxt->vcpu, MSR_EFER, &efer); ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
if ((new_val & X86_CR0_PG) && (efer & EFER_LME) && if ((new_val & X86_CR0_PG) && (efer & EFER_LME) &&
!(cr4 & X86_CR4_PAE)) !(cr4 & X86_CR4_PAE))
...@@ -2652,8 +2652,8 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt) ...@@ -2652,8 +2652,8 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
case 4: { case 4: {
u64 cr4, efer; u64 cr4, efer;
cr4 = ctxt->ops->get_cr(4, ctxt->vcpu); cr4 = ctxt->ops->get_cr(ctxt, 4);
ctxt->ops->get_msr(ctxt->vcpu, MSR_EFER, &efer); ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
if ((efer & EFER_LMA) && !(new_val & X86_CR4_PAE)) if ((efer & EFER_LMA) && !(new_val & X86_CR4_PAE))
return emulate_gp(ctxt, 0); return emulate_gp(ctxt, 0);
...@@ -2669,7 +2669,7 @@ static int check_dr7_gd(struct x86_emulate_ctxt *ctxt) ...@@ -2669,7 +2669,7 @@ static int check_dr7_gd(struct x86_emulate_ctxt *ctxt)
{ {
unsigned long dr7; unsigned long dr7;
ctxt->ops->get_dr(7, &dr7, ctxt->vcpu); ctxt->ops->get_dr(ctxt, 7, &dr7);
/* Check if DR7.Global_Enable is set */ /* Check if DR7.Global_Enable is set */
return dr7 & (1 << 13); return dr7 & (1 << 13);
...@@ -2684,7 +2684,7 @@ static int check_dr_read(struct x86_emulate_ctxt *ctxt) ...@@ -2684,7 +2684,7 @@ static int check_dr_read(struct x86_emulate_ctxt *ctxt)
if (dr > 7) if (dr > 7)
return emulate_ud(ctxt); return emulate_ud(ctxt);
cr4 = ctxt->ops->get_cr(4, ctxt->vcpu); cr4 = ctxt->ops->get_cr(ctxt, 4);
if ((cr4 & X86_CR4_DE) && (dr == 4 || dr == 5)) if ((cr4 & X86_CR4_DE) && (dr == 4 || dr == 5))
return emulate_ud(ctxt); return emulate_ud(ctxt);
...@@ -2710,7 +2710,7 @@ static int check_svme(struct x86_emulate_ctxt *ctxt) ...@@ -2710,7 +2710,7 @@ static int check_svme(struct x86_emulate_ctxt *ctxt)
{ {
u64 efer; u64 efer;
ctxt->ops->get_msr(ctxt->vcpu, MSR_EFER, &efer); ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
if (!(efer & EFER_SVME)) if (!(efer & EFER_SVME))
return emulate_ud(ctxt); return emulate_ud(ctxt);
...@@ -2731,9 +2731,9 @@ static int check_svme_pa(struct x86_emulate_ctxt *ctxt) ...@@ -2731,9 +2731,9 @@ static int check_svme_pa(struct x86_emulate_ctxt *ctxt)
static int check_rdtsc(struct x86_emulate_ctxt *ctxt) static int check_rdtsc(struct x86_emulate_ctxt *ctxt)
{ {
u64 cr4 = ctxt->ops->get_cr(4, ctxt->vcpu); u64 cr4 = ctxt->ops->get_cr(ctxt, 4);
if (cr4 & X86_CR4_TSD && ctxt->ops->cpl(ctxt->vcpu)) if (cr4 & X86_CR4_TSD && ctxt->ops->cpl(ctxt))
return emulate_ud(ctxt); return emulate_ud(ctxt);
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
...@@ -2741,10 +2741,10 @@ static int check_rdtsc(struct x86_emulate_ctxt *ctxt) ...@@ -2741,10 +2741,10 @@ static int check_rdtsc(struct x86_emulate_ctxt *ctxt)
static int check_rdpmc(struct x86_emulate_ctxt *ctxt) static int check_rdpmc(struct x86_emulate_ctxt *ctxt)
{ {
u64 cr4 = ctxt->ops->get_cr(4, ctxt->vcpu); u64 cr4 = ctxt->ops->get_cr(ctxt, 4);
u64 rcx = kvm_register_read(ctxt->vcpu, VCPU_REGS_RCX); u64 rcx = kvm_register_read(ctxt->vcpu, VCPU_REGS_RCX);
if ((!(cr4 & X86_CR4_PCE) && ctxt->ops->cpl(ctxt->vcpu)) || if ((!(cr4 & X86_CR4_PCE) && ctxt->ops->cpl(ctxt)) ||
(rcx > 3)) (rcx > 3))
return emulate_gp(ctxt, 0); return emulate_gp(ctxt, 0);
...@@ -3514,13 +3514,13 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -3514,13 +3514,13 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
} }
if ((c->d & Sse) if ((c->d & Sse)
&& ((ops->get_cr(0, ctxt->vcpu) & X86_CR0_EM) && ((ops->get_cr(ctxt, 0) & X86_CR0_EM)
|| !(ops->get_cr(4, ctxt->vcpu) & X86_CR4_OSFXSR))) { || !(ops->get_cr(ctxt, 4) & X86_CR4_OSFXSR))) {
rc = emulate_ud(ctxt); rc = emulate_ud(ctxt);
goto done; goto done;
} }
if ((c->d & Sse) && (ops->get_cr(0, ctxt->vcpu) & X86_CR0_TS)) { if ((c->d & Sse) && (ops->get_cr(ctxt, 0) & X86_CR0_TS)) {
rc = emulate_nm(ctxt); rc = emulate_nm(ctxt);
goto done; goto done;
} }
...@@ -3533,7 +3533,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -3533,7 +3533,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
} }
/* Privileged instruction can be executed only in CPL=0 */ /* Privileged instruction can be executed only in CPL=0 */
if ((c->d & Priv) && ops->cpl(ctxt->vcpu)) { if ((c->d & Priv) && ops->cpl(ctxt)) {
rc = emulate_gp(ctxt, 0); rc = emulate_gp(ctxt, 0);
goto done; goto done;
} }
...@@ -4052,11 +4052,11 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -4052,11 +4052,11 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
break; break;
case 4: /* smsw */ case 4: /* smsw */
c->dst.bytes = 2; c->dst.bytes = 2;
c->dst.val = ops->get_cr(0, ctxt->vcpu); c->dst.val = ops->get_cr(ctxt, 0);
break; break;
case 6: /* lmsw */ case 6: /* lmsw */
ops->set_cr(0, (ops->get_cr(0, ctxt->vcpu) & ~0x0eul) | ops->set_cr(ctxt, 0, (ops->get_cr(ctxt, 0) & ~0x0eul) |
(c->src.val & 0x0f), ctxt->vcpu); (c->src.val & 0x0f));
c->dst.type = OP_NONE; c->dst.type = OP_NONE;
break; break;
case 5: /* not defined */ case 5: /* not defined */
...@@ -4084,13 +4084,13 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -4084,13 +4084,13 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
case 0x18: /* Grp16 (prefetch/nop) */ case 0x18: /* Grp16 (prefetch/nop) */
break; break;
case 0x20: /* mov cr, reg */ case 0x20: /* mov cr, reg */
c->dst.val = ops->get_cr(c->modrm_reg, ctxt->vcpu); c->dst.val = ops->get_cr(ctxt, c->modrm_reg);
break; break;
case 0x21: /* mov from dr to reg */ case 0x21: /* mov from dr to reg */
ops->get_dr(c->modrm_reg, &c->dst.val, ctxt->vcpu); ops->get_dr(ctxt, c->modrm_reg, &c->dst.val);
break; break;
case 0x22: /* mov reg, cr */ case 0x22: /* mov reg, cr */
if (ops->set_cr(c->modrm_reg, c->src.val, ctxt->vcpu)) { if (ops->set_cr(ctxt, c->modrm_reg, c->src.val)) {
emulate_gp(ctxt, 0); emulate_gp(ctxt, 0);
rc = X86EMUL_PROPAGATE_FAULT; rc = X86EMUL_PROPAGATE_FAULT;
goto done; goto done;
...@@ -4098,9 +4098,9 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -4098,9 +4098,9 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
c->dst.type = OP_NONE; c->dst.type = OP_NONE;
break; break;
case 0x23: /* mov from reg to dr */ case 0x23: /* mov from reg to dr */
if (ops->set_dr(c->modrm_reg, c->src.val & if (ops->set_dr(ctxt, c->modrm_reg, c->src.val &
((ctxt->mode == X86EMUL_MODE_PROT64) ? ((ctxt->mode == X86EMUL_MODE_PROT64) ?
~0ULL : ~0U), ctxt->vcpu) < 0) { ~0ULL : ~0U)) < 0) {
/* #UD condition is already handled by the code above */ /* #UD condition is already handled by the code above */
emulate_gp(ctxt, 0); emulate_gp(ctxt, 0);
rc = X86EMUL_PROPAGATE_FAULT; rc = X86EMUL_PROPAGATE_FAULT;
...@@ -4113,7 +4113,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -4113,7 +4113,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
/* wrmsr */ /* wrmsr */
msr_data = (u32)c->regs[VCPU_REGS_RAX] msr_data = (u32)c->regs[VCPU_REGS_RAX]
| ((u64)c->regs[VCPU_REGS_RDX] << 32); | ((u64)c->regs[VCPU_REGS_RDX] << 32);
if (ops->set_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], msr_data)) { if (ops->set_msr(ctxt, c->regs[VCPU_REGS_RCX], msr_data)) {
emulate_gp(ctxt, 0); emulate_gp(ctxt, 0);
rc = X86EMUL_PROPAGATE_FAULT; rc = X86EMUL_PROPAGATE_FAULT;
goto done; goto done;
...@@ -4122,7 +4122,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt) ...@@ -4122,7 +4122,7 @@ x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
break; break;
case 0x32: case 0x32:
/* rdmsr */ /* rdmsr */
if (ops->get_msr(ctxt->vcpu, c->regs[VCPU_REGS_RCX], &msr_data)) { if (ops->get_msr(ctxt, c->regs[VCPU_REGS_RCX], &msr_data)) {
emulate_gp(ctxt, 0); emulate_gp(ctxt, 0);
rc = X86EMUL_PROPAGATE_FAULT; rc = X86EMUL_PROPAGATE_FAULT;
goto done; goto done;
......
arch/x86/kvm/x86.c
View file @ 717746e3
...@@ -4160,15 +4160,15 @@ int emulate_clts(struct kvm_vcpu *vcpu) ...@@ -4160,15 +4160,15 @@ int emulate_clts(struct kvm_vcpu *vcpu)
return X86EMUL_CONTINUE; return X86EMUL_CONTINUE;
} }
int emulator_get_dr(int dr, unsigned long *dest, struct kvm_vcpu *vcpu) int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long *dest)
{ {
return _kvm_get_dr(vcpu, dr, dest); return _kvm_get_dr(emul_to_vcpu(ctxt), dr, dest);
} }
int emulator_set_dr(int dr, unsigned long value, struct kvm_vcpu *vcpu) int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, unsigned long value)
{ {
return __kvm_set_dr(vcpu, dr, value); return __kvm_set_dr(emul_to_vcpu(ctxt), dr, value);
} }
static u64 mk_cr_64(u64 curr_cr, u32 new_val) static u64 mk_cr_64(u64 curr_cr, u32 new_val)
...@@ -4176,8 +4176,9 @@ static u64 mk_cr_64(u64 curr_cr, u32 new_val) ...@@ -4176,8 +4176,9 @@ static u64 mk_cr_64(u64 curr_cr, u32 new_val)
return (curr_cr & ~((1ULL << 32) - 1)) | new_val; return (curr_cr & ~((1ULL << 32) - 1)) | new_val;
} }
static unsigned long emulator_get_cr(int cr, struct kvm_vcpu *vcpu) static unsigned long emulator_get_cr(struct x86_emulate_ctxt *ctxt, int cr)
{ {
struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
unsigned long value; unsigned long value;
switch (cr) { switch (cr) {
...@@ -4204,8 +4205,9 @@ static unsigned long emulator_get_cr(int cr, struct kvm_vcpu *vcpu) ...@@ -4204,8 +4205,9 @@ static unsigned long emulator_get_cr(int cr, struct kvm_vcpu *vcpu)
return value; return value;
} }
static int emulator_set_cr(int cr, unsigned long val, struct kvm_vcpu *vcpu) static int emulator_set_cr(struct x86_emulate_ctxt *ctxt, int cr, ulong val)
{ {
struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
int res = 0; int res = 0;
switch (cr) { switch (cr) {
...@@ -4232,9 +4234,9 @@ static int emulator_set_cr(int cr, unsigned long val, struct kvm_vcpu *vcpu) ...@@ -4232,9 +4234,9 @@ static int emulator_set_cr(int cr, unsigned long val, struct kvm_vcpu *vcpu)
return res; return res;
} }
static int emulator_get_cpl(struct kvm_vcpu *vcpu) static int emulator_get_cpl(struct x86_emulate_ctxt *ctxt)
{ {
return kvm_x86_ops->get_cpl(vcpu); return kvm_x86_ops->get_cpl(emul_to_vcpu(ctxt));
} }
static void emulator_get_gdt(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt) static void emulator_get_gdt(struct x86_emulate_ctxt *ctxt, struct desc_ptr *dt)
...@@ -4335,6 +4337,18 @@ static void emulator_set_segment_selector(struct x86_emulate_ctxt *ctxt, ...@@ -4335,6 +4337,18 @@ static void emulator_set_segment_selector(struct x86_emulate_ctxt *ctxt,
kvm_set_segment(emul_to_vcpu(ctxt), &kvm_seg, seg); kvm_set_segment(emul_to_vcpu(ctxt), &kvm_seg, seg);
} }
static int emulator_get_msr(struct x86_emulate_ctxt *ctxt,
u32 msr_index, u64 *pdata)
{
return kvm_get_msr(emul_to_vcpu(ctxt), msr_index, pdata);
}
static int emulator_set_msr(struct x86_emulate_ctxt *ctxt,
u32 msr_index, u64 data)
{
return kvm_set_msr(emul_to_vcpu(ctxt), msr_index, data);
}
static void emulator_get_fpu(struct x86_emulate_ctxt *ctxt) static void emulator_get_fpu(struct x86_emulate_ctxt *ctxt)
{ {
preempt_disable(); preempt_disable();
...@@ -4379,8 +4393,8 @@ static struct x86_emulate_ops emulate_ops = { ...@@ -4379,8 +4393,8 @@ static struct x86_emulate_ops emulate_ops = {
.cpl = emulator_get_cpl, .cpl = emulator_get_cpl,
.get_dr = emulator_get_dr, .get_dr = emulator_get_dr,
.set_dr = emulator_set_dr, .set_dr = emulator_set_dr,
.set_msr = kvm_set_msr, .set_msr = emulator_set_msr,
.get_msr = kvm_get_msr, .get_msr = emulator_get_msr,
.get_fpu = emulator_get_fpu, .get_fpu = emulator_get_fpu,
.put_fpu = emulator_put_fpu, .put_fpu = emulator_put_fpu,
.intercept = emulator_intercept, .intercept = emulator_intercept,
......
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