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i386/kvm: initialize struct at full before ioctl call
author
Andrey Shinkevich
<andrey.shinkevich@virtuozzo.com>
Tue, 30 Jul 2019 16:01:38 +0000
(19:01 +0300)
committer
Paolo Bonzini
<pbonzini@redhat.com>
Tue, 20 Aug 2019 15:26:19 +0000
(17:26 +0200)
Not the whole structure is initialized before passing it to the KVM.
Reduce the number of Valgrind reports.
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Message-Id: <
1564502498
-805893-4-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
target/i386/kvm.c
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diff --git
a/target/i386/kvm.c
b/target/i386/kvm.c
index 608bb44270f500f489c19298d5d2e5458323f9b6..615dfce9093b5e06874c1743125b3e8381c6ea1d 100644
(file)
--- a/
target/i386/kvm.c
+++ b/
target/i386/kvm.c
@@
-193,6
+193,7
@@
static int kvm_get_tsc(CPUState *cs)
return 0;
}
+ memset(&msr_data, 0, sizeof(msr_data));
msr_data.info.nmsrs = 1;
msr_data.entries[0].index = MSR_IA32_TSC;
env->tsc_valid = !runstate_is_running();
@@
-1709,6
+1710,7
@@
int kvm_arch_init_vcpu(CPUState *cs)
if (has_xsave) {
env->xsave_buf = qemu_memalign(4096, sizeof(struct kvm_xsave));
+ memset(env->xsave_buf, 0, sizeof(struct kvm_xsave));
}
max_nested_state_len = kvm_max_nested_state_length();
@@
-3491,6
+3493,7
@@
static int kvm_put_debugregs(X86CPU *cpu)
return 0;
}
+ memset(&dbgregs, 0, sizeof(dbgregs));
for (i = 0; i < 4; i++) {
dbgregs.db[i] = env->dr[i];
}