From a5b98f7f3493f139163d906accb673d20e6cdff8 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Thu, 20 Nov 2008 14:21:17 +0000 Subject: [PATCH] x86: freeze non-current vCPUs of dom0 before entering S5 Signed-off-by: Jan Beulich --- xen/arch/x86/acpi/power.c | 32 ++++++++++++++++++++++++++++++-- 1 file changed, 30 insertions(+), 2 deletions(-) diff --git a/xen/arch/x86/acpi/power.c b/xen/arch/x86/acpi/power.c index 2eb6860070..ccad2ea5ee 100644 --- a/xen/arch/x86/acpi/power.c +++ b/xen/arch/x86/acpi/power.c @@ -77,19 +77,47 @@ static void device_power_up(void) static void freeze_domains(void) { struct domain *d; + struct vcpu *v; + rcu_read_lock(&domlist_read_lock); for_each_domain ( d ) - if ( d->domain_id != 0 ) + { + switch ( d->domain_id ) + { + case 0: + for_each_vcpu ( d, v ) + if ( v != current ) + vcpu_pause(v); + break; + default: domain_pause(d); + break; + } + } + rcu_read_unlock(&domlist_read_lock); } static void thaw_domains(void) { struct domain *d; + struct vcpu *v; + rcu_read_lock(&domlist_read_lock); for_each_domain ( d ) - if ( d->domain_id != 0 ) + { + switch ( d->domain_id ) + { + case 0: + for_each_vcpu ( d, v ) + if ( v != current ) + vcpu_unpause(v); + break; + default: domain_unpause(d); + break; + } + } + rcu_read_unlock(&domlist_read_lock); } static void acpi_sleep_prepare(u32 state) -- 2.30.2