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authorTakashi Iwai <tiwai@suse.de>2013-12-19 06:22:11 -0500
committerTakashi Iwai <tiwai@suse.de>2013-12-19 06:22:11 -0500
commit356f402da0f989b16e4b6849e88dba5df0e25944 (patch)
treed1d41d07abf30bdd7fe1498f6eb239eaced6d9b3 /arch/x86/kvm/lapic.c
parent3a6c5d8ad0a9253aafb76df3577edcb68c09b939 (diff)
parent96b7fe0119b932ad25451d2b6357e727bbe6a309 (diff)
Merge tag 'asoc-v3.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.13 The fixes here are all driver specific ones, none of which particularly stand out but all of which are useful to users of those drivers.
Diffstat (limited to 'arch/x86/kvm/lapic.c')
-rw-r--r--arch/x86/kvm/lapic.c35
1 files changed, 21 insertions, 14 deletions
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 5439117d5c4c..dec48bfaddb8 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -143,6 +143,8 @@ static inline int kvm_apic_id(struct kvm_lapic *apic)
143 return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff; 143 return (kvm_apic_get_reg(apic, APIC_ID) >> 24) & 0xff;
144} 144}
145 145
146#define KVM_X2APIC_CID_BITS 0
147
146static void recalculate_apic_map(struct kvm *kvm) 148static void recalculate_apic_map(struct kvm *kvm)
147{ 149{
148 struct kvm_apic_map *new, *old = NULL; 150 struct kvm_apic_map *new, *old = NULL;
@@ -180,7 +182,8 @@ static void recalculate_apic_map(struct kvm *kvm)
180 if (apic_x2apic_mode(apic)) { 182 if (apic_x2apic_mode(apic)) {
181 new->ldr_bits = 32; 183 new->ldr_bits = 32;
182 new->cid_shift = 16; 184 new->cid_shift = 16;
183 new->cid_mask = new->lid_mask = 0xffff; 185 new->cid_mask = (1 << KVM_X2APIC_CID_BITS) - 1;
186 new->lid_mask = 0xffff;
184 } else if (kvm_apic_sw_enabled(apic) && 187 } else if (kvm_apic_sw_enabled(apic) &&
185 !new->cid_mask /* flat mode */ && 188 !new->cid_mask /* flat mode */ &&
186 kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_CLUSTER) { 189 kvm_apic_get_reg(apic, APIC_DFR) == APIC_DFR_CLUSTER) {
@@ -841,7 +844,8 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic)
841 ASSERT(apic != NULL); 844 ASSERT(apic != NULL);
842 845
843 /* if initial count is 0, current count should also be 0 */ 846 /* if initial count is 0, current count should also be 0 */
844 if (kvm_apic_get_reg(apic, APIC_TMICT) == 0) 847 if (kvm_apic_get_reg(apic, APIC_TMICT) == 0 ||
848 apic->lapic_timer.period == 0)
845 return 0; 849 return 0;
846 850
847 remaining = hrtimer_get_remaining(&apic->lapic_timer.timer); 851 remaining = hrtimer_get_remaining(&apic->lapic_timer.timer);
@@ -1691,7 +1695,6 @@ static void apic_sync_pv_eoi_from_guest(struct kvm_vcpu *vcpu,
1691void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu) 1695void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu)
1692{ 1696{
1693 u32 data; 1697 u32 data;
1694 void *vapic;
1695 1698
1696 if (test_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention)) 1699 if (test_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention))
1697 apic_sync_pv_eoi_from_guest(vcpu, vcpu->arch.apic); 1700 apic_sync_pv_eoi_from_guest(vcpu, vcpu->arch.apic);
@@ -1699,9 +1702,8 @@ void kvm_lapic_sync_from_vapic(struct kvm_vcpu *vcpu)
1699 if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention)) 1702 if (!test_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention))
1700 return; 1703 return;
1701 1704
1702 vapic = kmap_atomic(vcpu->arch.apic->vapic_page); 1705 kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data,
1703 data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)); 1706 sizeof(u32));
1704 kunmap_atomic(vapic);
1705 1707
1706 apic_set_tpr(vcpu->arch.apic, data & 0xff); 1708 apic_set_tpr(vcpu->arch.apic, data & 0xff);
1707} 1709}
@@ -1737,7 +1739,6 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu)
1737 u32 data, tpr; 1739 u32 data, tpr;
1738 int max_irr, max_isr; 1740 int max_irr, max_isr;
1739 struct kvm_lapic *apic = vcpu->arch.apic; 1741 struct kvm_lapic *apic = vcpu->arch.apic;
1740 void *vapic;
1741 1742
1742 apic_sync_pv_eoi_to_guest(vcpu, apic); 1743 apic_sync_pv_eoi_to_guest(vcpu, apic);
1743 1744
@@ -1753,18 +1754,24 @@ void kvm_lapic_sync_to_vapic(struct kvm_vcpu *vcpu)
1753 max_isr = 0; 1754 max_isr = 0;
1754 data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24); 1755 data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24);
1755 1756
1756 vapic = kmap_atomic(vcpu->arch.apic->vapic_page); 1757 kvm_write_guest_cached(vcpu->kvm, &vcpu->arch.apic->vapic_cache, &data,
1757 *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data; 1758 sizeof(u32));
1758 kunmap_atomic(vapic);
1759} 1759}
1760 1760
1761void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr) 1761int kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr)
1762{ 1762{
1763 vcpu->arch.apic->vapic_addr = vapic_addr; 1763 if (vapic_addr) {
1764 if (vapic_addr) 1764 if (kvm_gfn_to_hva_cache_init(vcpu->kvm,
1765 &vcpu->arch.apic->vapic_cache,
1766 vapic_addr, sizeof(u32)))
1767 return -EINVAL;
1765 __set_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); 1768 __set_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention);
1766 else 1769 } else {
1767 __clear_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention); 1770 __clear_bit(KVM_APIC_CHECK_VAPIC, &vcpu->arch.apic_attention);
1771 }
1772
1773 vcpu->arch.apic->vapic_addr = vapic_addr;
1774 return 0;
1768} 1775}
1769 1776
1770int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data) 1777int kvm_x2apic_msr_write(struct kvm_vcpu *vcpu, u32 msr, u64 data)