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| author | Michael S. Tsirkin <mst@redhat.com> | 2012-02-29 17:54:29 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-03-07 12:31:48 +0200 |
| commit | 7e680753cfa2986e0a8b3b222b6bf0b003c5eb69 (patch) | |
| tree | 30e58d17254b14fc37130aa66b041edc1dd017a2 /target-i386/kvm.c | |
| parent | 5d17c0d2df4998598e6002b27b8e47e792899a0f (diff) | |
| download | qemu-7e680753cfa2986e0a8b3b222b6bf0b003c5eb69.zip qemu-7e680753cfa2986e0a8b3b222b6bf0b003c5eb69.tar.gz qemu-7e680753cfa2986e0a8b3b222b6bf0b003c5eb69.tar.bz2 | |
kvm: fill in padding to help valgrind
valgrind warns about padding fields which are passed
to vcpu ioctls uninitialized.
This is not an error in practice because kvm ignored padding.
Since the ioctls in question are off data path and
the cost is zero anyway, initialize padding to 0
to suppress these errors.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'target-i386/kvm.c')
| -rw-r--r-- | target-i386/kvm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/target-i386/kvm.c b/target-i386/kvm.c index 9a73207..619d773 100644 --- a/target-i386/kvm.c +++ b/target-i386/kvm.c @@ -555,6 +555,7 @@ int kvm_arch_init_vcpu(CPUState *env) qemu_add_vm_change_state_handler(cpu_update_state, env); + cpuid_data.cpuid.padding = 0; r = kvm_vcpu_ioctl(env, KVM_SET_CPUID2, &cpuid_data); if (r) { return r; @@ -740,6 +741,7 @@ static void set_seg(struct kvm_segment *lhs, const SegmentCache *rhs) lhs->g = (flags & DESC_G_MASK) != 0; lhs->avl = (flags & DESC_AVL_MASK) != 0; lhs->unusable = 0; + lhs->padding = 0; } static void get_seg(SegmentCache *lhs, const struct kvm_segment *rhs) @@ -919,8 +921,10 @@ static int kvm_put_sregs(CPUState *env) sregs.idt.limit = env->idt.limit; sregs.idt.base = env->idt.base; + memset(sregs.idt.padding, 0, sizeof sregs.idt.padding); sregs.gdt.limit = env->gdt.limit; sregs.gdt.base = env->gdt.base; + memset(sregs.gdt.padding, 0, sizeof sregs.gdt.padding); sregs.cr0 = env->cr[0]; sregs.cr2 = env->cr[2]; @@ -1392,6 +1396,7 @@ static int kvm_put_vcpu_events(CPUState *env, int level) events.exception.nr = env->exception_injected; events.exception.has_error_code = env->has_error_code; events.exception.error_code = env->error_code; + events.exception.pad = 0; events.interrupt.injected = (env->interrupt_injected >= 0); events.interrupt.nr = env->interrupt_injected; @@ -1400,6 +1405,7 @@ static int kvm_put_vcpu_events(CPUState *env, int level) events.nmi.injected = env->nmi_injected; events.nmi.pending = env->nmi_pending; events.nmi.masked = !!(env->hflags2 & HF2_NMI_MASK); + events.nmi.pad = 0; events.sipi_vector = env->sipi_vector; |