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authorAndrey Smetanin <asmetanin@virtuozzo.com>2015-09-16 12:59:42 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2015-10-12 18:29:26 +0200
commit744b8a9440fa2bd78ae64861667337439e25a6dc (patch)
tree6c717c7594a6591407c24624606bff6304959907 /target-i386/cpu.c
parent3a824b1552d68b708c161a900e2956a78d4ea466 (diff)
target-i386/kvm: Hyper-V HV_X64_MSR_RESET support
HV_X64_MSR_RESET msr is used by Hyper-V based Windows guest to reset guest VM by hypervisor. This msr is stateless so no migration/fetch/update is required. This code checks cpu option "hv-reset" and support by kernel. If both conditions are met appropriate Hyper-V features cpuid bit is set. Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: Richard Henderson <rth@twiddle.net> CC: Eduardo Habkost <ehabkost@redhat.com> CC: "Andreas Färber" <afaerber@suse.de> CC: Marcelo Tosatti <mtosatti@redhat.com> Message-Id: <1442397584-16698-2-git-send-email-den@openvz.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'target-i386/cpu.c')
-rw-r--r--target-i386/cpu.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/target-i386/cpu.c b/target-i386/cpu.c
index 05d7f26bf1..230ecf42fd 100644
--- a/target-i386/cpu.c
+++ b/target-i386/cpu.c
@@ -3140,6 +3140,7 @@ static Property x86_cpu_properties[] = {
DEFINE_PROP_BOOL("hv-vapic", X86CPU, hyperv_vapic, false),
DEFINE_PROP_BOOL("hv-time", X86CPU, hyperv_time, false),
DEFINE_PROP_BOOL("hv-crash", X86CPU, hyperv_crash, false),
+ DEFINE_PROP_BOOL("hv-reset", X86CPU, hyperv_reset, false),
DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, false),
DEFINE_PROP_BOOL("enforce", X86CPU, enforce_cpuid, false),
DEFINE_PROP_BOOL("kvm", X86CPU, expose_kvm, true),