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raspberrypi-kernel
提交 2d3ad1f4 编写于 作者: A Avi Kivity
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KVM: Prefix control register accessors with kvm_ to avoid namespace pollution 

Names like 'set_cr3()' look dangerously close to affecting the host.
Signed-off-by: NAvi Kivity <avi@qumranet.com>
上级 05da4558
隐藏空白更改
内联 并排
Showing with 36 addition and 36 deletion
arch/x86/kvm/vmx.c
浏览文件 @ 2d3ad1f4
...@@ -1683,7 +1683,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu) ...@@ -1683,7 +1683,7 @@ static int vmx_vcpu_reset(struct kvm_vcpu *vcpu)
vmx->vcpu.arch.rmode.active = 0; vmx->vcpu.arch.rmode.active = 0;
vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val(); vmx->vcpu.arch.regs[VCPU_REGS_RDX] = get_rdx_init_val();
set_cr8(&vmx->vcpu, 0); kvm_set_cr8(&vmx->vcpu, 0);
msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; msr = 0xfee00000 | MSR_IA32_APICBASE_ENABLE;
if (vmx->vcpu.vcpu_id == 0) if (vmx->vcpu.vcpu_id == 0)
msr |= MSR_IA32_APICBASE_BSP; msr |= MSR_IA32_APICBASE_BSP;
...@@ -2026,22 +2026,22 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) ...@@ -2026,22 +2026,22 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
switch (cr) { switch (cr) {
case 0: case 0:
vcpu_load_rsp_rip(vcpu); vcpu_load_rsp_rip(vcpu);
set_cr0(vcpu, vcpu->arch.regs[reg]); kvm_set_cr0(vcpu, vcpu->arch.regs[reg]);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
return 1; return 1;
case 3: case 3:
vcpu_load_rsp_rip(vcpu); vcpu_load_rsp_rip(vcpu);
set_cr3(vcpu, vcpu->arch.regs[reg]); kvm_set_cr3(vcpu, vcpu->arch.regs[reg]);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
return 1; return 1;
case 4: case 4:
vcpu_load_rsp_rip(vcpu); vcpu_load_rsp_rip(vcpu);
set_cr4(vcpu, vcpu->arch.regs[reg]); kvm_set_cr4(vcpu, vcpu->arch.regs[reg]);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
return 1; return 1;
case 8: case 8:
vcpu_load_rsp_rip(vcpu); vcpu_load_rsp_rip(vcpu);
set_cr8(vcpu, vcpu->arch.regs[reg]); kvm_set_cr8(vcpu, vcpu->arch.regs[reg]);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
if (irqchip_in_kernel(vcpu->kvm)) if (irqchip_in_kernel(vcpu->kvm))
return 1; return 1;
...@@ -2067,14 +2067,14 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) ...@@ -2067,14 +2067,14 @@ static int handle_cr(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
return 1; return 1;
case 8: case 8:
vcpu_load_rsp_rip(vcpu); vcpu_load_rsp_rip(vcpu);
vcpu->arch.regs[reg] = get_cr8(vcpu); vcpu->arch.regs[reg] = kvm_get_cr8(vcpu);
vcpu_put_rsp_rip(vcpu); vcpu_put_rsp_rip(vcpu);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
return 1; return 1;
} }
break; break;
case 3: /* lmsw */ case 3: /* lmsw */
lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f); kvm_lmsw(vcpu, (exit_qualification >> LMSW_SOURCE_DATA_SHIFT) & 0x0f);
skip_emulated_instruction(vcpu); skip_emulated_instruction(vcpu);
return 1; return 1;
......
arch/x86/kvm/x86.c
浏览文件 @ 2d3ad1f4
...@@ -237,7 +237,7 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu) ...@@ -237,7 +237,7 @@ static bool pdptrs_changed(struct kvm_vcpu *vcpu)
return changed; return changed;
} }
void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
{ {
if (cr0 & CR0_RESERVED_BITS) { if (cr0 & CR0_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n", printk(KERN_DEBUG "set_cr0: 0x%lx #GP, reserved bits 0x%lx\n",
...@@ -295,15 +295,15 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) ...@@ -295,15 +295,15 @@ void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
kvm_mmu_reset_context(vcpu); kvm_mmu_reset_context(vcpu);
return; return;
} }
EXPORT_SYMBOL_GPL(set_cr0); EXPORT_SYMBOL_GPL(kvm_set_cr0);
void lmsw(struct kvm_vcpu *vcpu, unsigned long msw) void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw)
{ {
set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f)); kvm_set_cr0(vcpu, (vcpu->arch.cr0 & ~0x0ful) | (msw & 0x0f));
} }
EXPORT_SYMBOL_GPL(lmsw); EXPORT_SYMBOL_GPL(kvm_lmsw);
void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
{ {
if (cr4 & CR4_RESERVED_BITS) { if (cr4 & CR4_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n"); printk(KERN_DEBUG "set_cr4: #GP, reserved bits\n");
...@@ -334,9 +334,9 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) ...@@ -334,9 +334,9 @@ void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
vcpu->arch.cr4 = cr4; vcpu->arch.cr4 = cr4;
kvm_mmu_reset_context(vcpu); kvm_mmu_reset_context(vcpu);
} }
EXPORT_SYMBOL_GPL(set_cr4); EXPORT_SYMBOL_GPL(kvm_set_cr4);
void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
{ {
if (cr3 == vcpu->arch.cr3 && !pdptrs_changed(vcpu)) { if (cr3 == vcpu->arch.cr3 && !pdptrs_changed(vcpu)) {
kvm_mmu_flush_tlb(vcpu); kvm_mmu_flush_tlb(vcpu);
...@@ -388,9 +388,9 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3) ...@@ -388,9 +388,9 @@ void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
} }
up_read(&vcpu->kvm->slots_lock); up_read(&vcpu->kvm->slots_lock);
} }
EXPORT_SYMBOL_GPL(set_cr3); EXPORT_SYMBOL_GPL(kvm_set_cr3);
void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8) void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
{ {
if (cr8 & CR8_RESERVED_BITS) { if (cr8 & CR8_RESERVED_BITS) {
printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8); printk(KERN_DEBUG "set_cr8: #GP, reserved bits 0x%lx\n", cr8);
...@@ -402,16 +402,16 @@ void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8) ...@@ -402,16 +402,16 @@ void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8)
else else
vcpu->arch.cr8 = cr8; vcpu->arch.cr8 = cr8;
} }
EXPORT_SYMBOL_GPL(set_cr8); EXPORT_SYMBOL_GPL(kvm_set_cr8);
unsigned long get_cr8(struct kvm_vcpu *vcpu) unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu)
{ {
if (irqchip_in_kernel(vcpu->kvm)) if (irqchip_in_kernel(vcpu->kvm))
return kvm_lapic_get_cr8(vcpu); return kvm_lapic_get_cr8(vcpu);
else else
return vcpu->arch.cr8; return vcpu->arch.cr8;
} }
EXPORT_SYMBOL_GPL(get_cr8); EXPORT_SYMBOL_GPL(kvm_get_cr8);
/* /*
* List of msr numbers which we expose to userspace through KVM_GET_MSRS * List of msr numbers which we expose to userspace through KVM_GET_MSRS
...@@ -2462,7 +2462,7 @@ void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base) ...@@ -2462,7 +2462,7 @@ void realmode_lidt(struct kvm_vcpu *vcpu, u16 limit, unsigned long base)
void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
unsigned long *rflags) unsigned long *rflags)
{ {
lmsw(vcpu, msw); kvm_lmsw(vcpu, msw);
*rflags = kvm_x86_ops->get_rflags(vcpu); *rflags = kvm_x86_ops->get_rflags(vcpu);
} }
...@@ -2479,7 +2479,7 @@ unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr) ...@@ -2479,7 +2479,7 @@ unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr)
case 4: case 4:
return vcpu->arch.cr4; return vcpu->arch.cr4;
case 8: case 8:
return get_cr8(vcpu); return kvm_get_cr8(vcpu);
default: default:
vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr); vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
return 0; return 0;
...@@ -2491,20 +2491,20 @@ void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val, ...@@ -2491,20 +2491,20 @@ void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long val,
{ {
switch (cr) { switch (cr) {
case 0: case 0:
set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val)); kvm_set_cr0(vcpu, mk_cr_64(vcpu->arch.cr0, val));
*rflags = kvm_x86_ops->get_rflags(vcpu); *rflags = kvm_x86_ops->get_rflags(vcpu);
break; break;
case 2: case 2:
vcpu->arch.cr2 = val; vcpu->arch.cr2 = val;
break; break;
case 3: case 3:
set_cr3(vcpu, val); kvm_set_cr3(vcpu, val);
break; break;
case 4: case 4:
set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val)); kvm_set_cr4(vcpu, mk_cr_64(vcpu->arch.cr4, val));
break; break;
case 8: case 8:
set_cr8(vcpu, val & 0xfUL); kvm_set_cr8(vcpu, val & 0xfUL);
break; break;
default: default:
vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr); vcpu_printf(vcpu, "%s: unexpected cr %u\n", __FUNCTION__, cr);
...@@ -2602,7 +2602,7 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu, ...@@ -2602,7 +2602,7 @@ static void post_kvm_run_save(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run) struct kvm_run *kvm_run)
{ {
kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0; kvm_run->if_flag = (kvm_x86_ops->get_rflags(vcpu) & X86_EFLAGS_IF) != 0;
kvm_run->cr8 = get_cr8(vcpu); kvm_run->cr8 = kvm_get_cr8(vcpu);
kvm_run->apic_base = kvm_get_apic_base(vcpu); kvm_run->apic_base = kvm_get_apic_base(vcpu);
if (irqchip_in_kernel(vcpu->kvm)) if (irqchip_in_kernel(vcpu->kvm))
kvm_run->ready_for_interrupt_injection = 1; kvm_run->ready_for_interrupt_injection = 1;
...@@ -2803,7 +2803,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) ...@@ -2803,7 +2803,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
/* re-sync apic's tpr */ /* re-sync apic's tpr */
if (!irqchip_in_kernel(vcpu->kvm)) if (!irqchip_in_kernel(vcpu->kvm))
set_cr8(vcpu, kvm_run->cr8); kvm_set_cr8(vcpu, kvm_run->cr8);
if (vcpu->arch.pio.cur_count) { if (vcpu->arch.pio.cur_count) {
r = complete_pio(vcpu); r = complete_pio(vcpu);
...@@ -2961,7 +2961,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu, ...@@ -2961,7 +2961,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
sregs->cr2 = vcpu->arch.cr2; sregs->cr2 = vcpu->arch.cr2;
sregs->cr3 = vcpu->arch.cr3; sregs->cr3 = vcpu->arch.cr3;
sregs->cr4 = vcpu->arch.cr4; sregs->cr4 = vcpu->arch.cr4;
sregs->cr8 = get_cr8(vcpu); sregs->cr8 = kvm_get_cr8(vcpu);
sregs->efer = vcpu->arch.shadow_efer; sregs->efer = vcpu->arch.shadow_efer;
sregs->apic_base = kvm_get_apic_base(vcpu); sregs->apic_base = kvm_get_apic_base(vcpu);
...@@ -3007,7 +3007,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu, ...@@ -3007,7 +3007,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3; mmu_reset_needed |= vcpu->arch.cr3 != sregs->cr3;
vcpu->arch.cr3 = sregs->cr3; vcpu->arch.cr3 = sregs->cr3;
set_cr8(vcpu, sregs->cr8); kvm_set_cr8(vcpu, sregs->cr8);
mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer; mmu_reset_needed |= vcpu->arch.shadow_efer != sregs->efer;
kvm_x86_ops->set_efer(vcpu, sregs->efer); kvm_x86_ops->set_efer(vcpu, sregs->efer);
......
include/asm-x86/kvm_host.h
浏览文件 @ 2d3ad1f4
...@@ -470,12 +470,12 @@ int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, ...@@ -470,12 +470,12 @@ int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr,
int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
unsigned long value); unsigned long value);
void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0); void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0); void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0); void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
unsigned long get_cr8(struct kvm_vcpu *vcpu); unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
void lmsw(struct kvm_vcpu *vcpu, unsigned long msw); void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l); void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
......
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