diff options
| author | Eric B Munson <emunson@mgebm.net> | 2012-03-10 23:37:26 +0400 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-04-08 13:48:59 +0400 |
| commit | 3b5d56b9317fa7b5407dff1aa7b115bf6cdbd494 (patch) | |
| tree | d733bab15dcf193c3364d14fc2d973aa20a28fe3 /arch/x86/include/asm/kvm_para.h | |
| parent | eae3ee7d8a7c59cf63441dedf28674889f5fc477 (diff) | |
| download | linux-3b5d56b9317fa7b5407dff1aa7b115bf6cdbd494.tar.xz | |
kvmclock: Add functions to check if the host has stopped the vm
When a host stops or suspends a VM it will set a flag to show this. The
watchdog will use these functions to determine if a softlockup is real, or the
result of a suspended VM.
Signed-off-by: Eric B Munson <emunson@mgebm.net>
asm-generic changes Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_para.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_para.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h index 734c3767cfac..99c4bbe0cca2 100644 --- a/arch/x86/include/asm/kvm_para.h +++ b/arch/x86/include/asm/kvm_para.h @@ -95,6 +95,14 @@ struct kvm_vcpu_pv_apf_data { extern void kvmclock_init(void); extern int kvm_register_clock(char *txt); +#ifdef CONFIG_KVM_CLOCK +bool kvm_check_and_clear_guest_paused(void); +#else +static inline bool kvm_check_and_clear_guest_paused(void) +{ + return false; +} +#endif /* CONFIG_KVMCLOCK */ /* This instruction is vmcall. On non-VT architectures, it will generate a * trap that we will then rewrite to the appropriate instruction. |