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-rw-r--r--include/sysemu/kvm.h2
-rw-r--r--kvm-all.c11
2 files changed, 12 insertions, 1 deletions
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index e79e92c50e..de4bdaa40e 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -325,6 +325,8 @@ int kvm_check_extension(KVMState *s, unsigned int extension);
uint32_t kvm_arch_get_supported_cpuid(KVMState *env, uint32_t function,
uint32_t index, int reg);
+void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len);
+
#if !defined(CONFIG_USER_ONLY)
int kvm_physical_memory_addr_from_host(KVMState *s, void *ram_addr,
hwaddr *phys_addr);
diff --git a/kvm-all.c b/kvm-all.c
index 56a251bf8e..31423353f1 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -99,6 +99,7 @@ struct KVMState
* they're not. Linux, glibc and *BSD all treat ioctl numbers as
* unsigned, and treating them as signed here can break things */
unsigned irq_set_ioctl;
+ unsigned int sigmask_len;
#ifdef KVM_CAP_IRQ_ROUTING
struct kvm_irq_routing *irq_routes;
int nr_allocated_irq_routes;
@@ -1397,6 +1398,8 @@ int kvm_init(MachineClass *mc)
assert(TARGET_PAGE_SIZE <= getpagesize());
page_size_init();
+ s->sigmask_len = 8;
+
#ifdef KVM_CAP_SET_GUEST_DEBUG
QTAILQ_INIT(&s->kvm_sw_breakpoints);
#endif
@@ -1575,6 +1578,11 @@ err:
return ret;
}
+void kvm_set_sigmask_len(KVMState *s, unsigned int sigmask_len)
+{
+ s->sigmask_len = sigmask_len;
+}
+
static void kvm_handle_io(uint16_t port, void *data, int direction, int size,
uint32_t count)
{
@@ -2095,6 +2103,7 @@ void kvm_remove_all_breakpoints(CPUState *cpu)
int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
{
+ KVMState *s = kvm_state;
struct kvm_signal_mask *sigmask;
int r;
@@ -2104,7 +2113,7 @@ int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
sigmask = g_malloc(sizeof(*sigmask) + sizeof(*sigset));
- sigmask->len = 8;
+ sigmask->len = s->sigmask_len;
memcpy(sigmask->sigset, sigset, sizeof(*sigset));
r = kvm_vcpu_ioctl(cpu, KVM_SET_SIGNAL_MASK, sigmask);
g_free(sigmask);