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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-05 16:12:34 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-05 16:12:34 -0500
commitc812a51d11bbe983f4c24e32b59b265705ddd3c2 (patch)
treed454f518db51a4de700cf3dcd4c3c71ee7288b47 /arch/x86/kvm/lapic.c
parent9467c4fdd66f6810cecef0f1173330f3c6e67d45 (diff)
parentd2be1651b736002e0c76d7095d6c0ba77b4a897c (diff)
Merge branch 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.34' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (145 commits) KVM: x86: Add KVM_CAP_X86_ROBUST_SINGLESTEP KVM: VMX: Update instruction length on intercepted BP KVM: Fix emulate_sys[call, enter, exit]()'s fault handling KVM: Fix segment descriptor loading KVM: Fix load_guest_segment_descriptor() to inject page fault KVM: x86 emulator: Forbid modifying CS segment register by mov instruction KVM: Convert kvm->requests_lock to raw_spinlock_t KVM: Convert i8254/i8259 locks to raw_spinlocks KVM: x86 emulator: disallow opcode 82 in 64-bit mode KVM: x86 emulator: code style cleanup KVM: Plan obsolescence of kernel allocated slots, paravirt mmu KVM: x86 emulator: Add LOCK prefix validity checking KVM: x86 emulator: Check CPL level during privilege instruction emulation KVM: x86 emulator: Fix popf emulation KVM: x86 emulator: Check IOPL level during io instruction emulation KVM: x86 emulator: fix memory access during x86 emulation KVM: x86 emulator: Add Virtual-8086 mode of emulation KVM: x86 emulator: Add group9 instruction decoding KVM: x86 emulator: Add group8 instruction decoding KVM: do not store wqh in irqfd ... Trivial conflicts in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r--arch/x86/kvm/lapic.c31
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index ba8c045da782..4b224f90087b 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1246,3 +1246,34 @@ int kvm_x2apic_msr_read(struct kvm_vcpu *vcpu, u32 msr, u64 *data)
1246 1246
1247 return 0; 1247 return 0;
1248} 1248}
1249
1250int kvm_hv_vapic_msr_write(struct kvm_vcpu *vcpu, u32 reg, u64 data)
1251{
1252 struct kvm_lapic *apic = vcpu->arch.apic;
1253
1254 if (!irqchip_in_kernel(vcpu->kvm))
1255 return 1;
1256
1257 /* if this is ICR write vector before command */
1258 if (reg == APIC_ICR)
1259 apic_reg_write(apic, APIC_ICR2, (u32)(data >> 32));
1260 return apic_reg_write(apic, reg, (u32)data);
1261}
1262
1263int kvm_hv_vapic_msr_read(struct kvm_vcpu *vcpu, u32 reg, u64 *data)
1264{
1265 struct kvm_lapic *apic = vcpu->arch.apic;
1266 u32 low, high = 0;
1267
1268 if (!irqchip_in_kernel(vcpu->kvm))
1269 return 1;
1270
1271 if (apic_reg_read(apic, reg, 4, &low))
1272 return 1;
1273 if (reg == APIC_ICR)
1274 apic_reg_read(apic, APIC_ICR2, 4, &high);
1275
1276 *data = (((u64)high) << 32) | low;
1277
1278 return 0;
1279}