diff options
| author | Anthony Liguori <aliguori@us.ibm.com> | 2012-07-18 14:44:43 -0500 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-07-18 14:44:43 -0500 |
| commit | 09f06a6c603ce64284287d32f6ffadaaa5064850 (patch) | |
| tree | 176bbc325a87eb4961ec8605e75d326746e7c9bb /target-i386 | |
| parent | 513e6bde4fa551c293e7d346e27b618b57a4087a (diff) | |
| parent | 15b2bd1847239fe0b4a1041b69a631741d2e273a (diff) | |
Merge remote-tracking branch 'qemu-kvm/uq/master' into staging
* qemu-kvm/uq/master:
virtio: move common irqfd handling out of virtio-pci
virtio: move common ioeventfd handling out of virtio-pci
event_notifier: add event_notifier_set_handler
memory: pass EventNotifier, not eventfd
ivshmem: wrap ivshmem_del_eventfd loops with transaction
ivshmem: use EventNotifier and memory API
event_notifier: add event_notifier_init_fd
event_notifier: remove event_notifier_test
event_notifier: add event_notifier_set
apic: Defer interrupt updates to VCPU thread
apic: Reevaluate pending interrupts on LVT_LINT0 changes
apic: Resolve potential endless loop around apic_update_irq
kvm: expose tsc deadline timer feature to guest
kvm_pv_eoi: add flag support
kvm: Don't abort on kvm_irqchip_add_msi_route()
Diffstat (limited to 'target-i386')
| -rw-r--r-- | target-i386/cpu.c | 2 | ||||
| -rw-r--r-- | target-i386/cpu.h | 5 | ||||
| -rw-r--r-- | target-i386/kvm.c | 9 |
3 files changed, 14 insertions, 2 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 5521709240..b3bcbacd76 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -77,7 +77,7 @@ static const char *ext3_feature_name[] = { }; static const char *kvm_feature_name[] = { - "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, NULL, NULL, + "kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock", "kvm_asyncpf", NULL, "kvm_pv_eoi", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target-i386/cpu.h b/target-i386/cpu.h index f257c972fb..2a61c810bb 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -400,6 +400,7 @@ #define CPUID_EXT_X2APIC (1 << 21) #define CPUID_EXT_MOVBE (1 << 22) #define CPUID_EXT_POPCNT (1 << 23) +#define CPUID_EXT_TSC_DEADLINE_TIMER (1 << 24) #define CPUID_EXT_XSAVE (1 << 26) #define CPUID_EXT_OSXSAVE (1 << 27) #define CPUID_EXT_HYPERVISOR (1 << 31) @@ -477,6 +478,7 @@ for syscall instruction */ /* i386-specific interrupt pending bits. */ +#define CPU_INTERRUPT_POLL CPU_INTERRUPT_TGT_EXT_1 #define CPU_INTERRUPT_SMI CPU_INTERRUPT_TGT_EXT_2 #define CPU_INTERRUPT_NMI CPU_INTERRUPT_TGT_EXT_3 #define CPU_INTERRUPT_MCE CPU_INTERRUPT_TGT_EXT_4 @@ -1047,7 +1049,8 @@ static inline void cpu_clone_regs(CPUX86State *env, target_ulong newsp) static inline bool cpu_has_work(CPUX86State *env) { - return ((env->interrupt_request & CPU_INTERRUPT_HARD) && + return ((env->interrupt_request & (CPU_INTERRUPT_HARD | + CPU_INTERRUPT_POLL)) && (env->eflags & IF_MASK)) || (env->interrupt_request & (CPU_INTERRUPT_NMI | CPU_INTERRUPT_INIT | diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 0d0d8f69d3..e53c2f6bdf 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -361,8 +361,13 @@ int kvm_arch_init_vcpu(CPUX86State *env) env->cpuid_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_EDX); i = env->cpuid_ext_features & CPUID_EXT_HYPERVISOR; + j = env->cpuid_ext_features & CPUID_EXT_TSC_DEADLINE_TIMER; env->cpuid_ext_features &= kvm_arch_get_supported_cpuid(s, 1, 0, R_ECX); env->cpuid_ext_features |= i; + if (j && kvm_irqchip_in_kernel() && + kvm_check_extension(s, KVM_CAP_TSC_DEADLINE_TIMER)) { + env->cpuid_ext_features |= CPUID_EXT_TSC_DEADLINE_TIMER; + } env->cpuid_ext2_features &= kvm_arch_get_supported_cpuid(s, 0x80000001, 0, R_EDX); @@ -1727,6 +1732,10 @@ int kvm_arch_process_async_events(CPUX86State *env) return 0; } + if (env->interrupt_request & CPU_INTERRUPT_POLL) { + env->interrupt_request &= ~CPU_INTERRUPT_POLL; + apic_poll_irq(env->apic_state); + } if (((env->interrupt_request & CPU_INTERRUPT_HARD) && (env->eflags & IF_MASK)) || (env->interrupt_request & CPU_INTERRUPT_NMI)) { |