On Mon, 12 Nov 2018, Mirela Simonovic wrote:
> These functions will be reused by suspend/resume support for ARM.
>
> Signed-off-by: Mirela Simonovic
> Signed-off-by: Saeed Nowshadi
> ---
> xen/arch/x86/acpi/power.c | 28
> xen/common/domain.c | 29 +
> xen/include/xen/sched.h | 3 +++
> 3 files changed, 32 insertions(+), 28 deletions(-)
>
> diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c
> index 93e967fe8f..794750e45b 100644
> --- a/xen/arch/x86/acpi/power.c
> +++ b/xen/arch/x86/acpi/power.c
> @@ -109,34 +109,6 @@ static void device_power_up(enum dev_power_saved saved)
> }
> }
>
> -static void freeze_domains(void)
> -{
> -struct domain *d;
> -
> -rcu_read_lock(_read_lock);
> -/*
> - * Note that we iterate in order of domain-id. Hence we will pause dom0
> - * first which is required for correctness (as only dom0 can add domains
> to
> - * the domain list). Otherwise we could miss concurrently-created
> domains.
> - */
> -for_each_domain ( d )
> -domain_pause(d);
> -rcu_read_unlock(_read_lock);
> -}
> -
> -static void thaw_domains(void)
> -{
> -struct domain *d;
> -
> -rcu_read_lock(_read_lock);
> -for_each_domain ( d )
> -{
> -restore_vcpu_affinity(d);
> -domain_unpause(d);
> -}
> -rcu_read_unlock(_read_lock);
> -}
> -
> static void acpi_sleep_prepare(u32 state)
> {
> void *wakeup_vector_va;
> diff --git a/xen/common/domain.c b/xen/common/domain.c
> index d6650f0656..fdd00dc661 100644
> --- a/xen/common/domain.c
> +++ b/xen/common/domain.c
> @@ -1666,6 +1666,35 @@ int continue_hypercall_on_cpu(
> return 0;
> }
>
> +
NIT: spurious newline
Aside from that:
Acked-by: Stefano Stabellini
> +void freeze_domains(void)
> +{
> +struct domain *d;
> +
> +rcu_read_lock(_read_lock);
> +/*
> + * Note that we iterate in order of domain-id. Hence we will pause dom0
> + * first which is required for correctness (as only dom0 can add domains
> to
> + * the domain list). Otherwise we could miss concurrently-created
> domains.
> + */
> +for_each_domain ( d )
> +domain_pause(d);
> +rcu_read_unlock(_read_lock);
> +}
> +
> +void thaw_domains(void)
> +{
> +struct domain *d;
> +
> +rcu_read_lock(_read_lock);
> +for_each_domain ( d )
> +{
> +restore_vcpu_affinity(d);
> +domain_unpause(d);
> +}
> +rcu_read_unlock(_read_lock);
> +}
> +
> /*
> * Local variables:
> * mode: C
> diff --git a/xen/include/xen/sched.h b/xen/include/xen/sched.h
> index 366acaf69a..c7a6d9504a 100644
> --- a/xen/include/xen/sched.h
> +++ b/xen/include/xen/sched.h
> @@ -821,6 +821,9 @@ static inline int
> domain_pause_by_systemcontroller_nosync(struct domain *d)
> void domain_pause_except_self(struct domain *d);
> void domain_unpause_except_self(struct domain *d);
>
> +void freeze_domains(void);
> +void thaw_domains(void);
> +
> void cpu_init(void);
>
> struct scheduler;
> --
> 2.13.0
>
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