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authorLiu, Jinsong <jinsong.liu@intel.com>2011-09-22 10:55:52 +0200
committerAvi Kivity <avi@redhat.com>2011-10-05 15:34:56 +0200
commita3e06bbe8445f57eb949e6474c5a9b30f24d2057 (patch)
treefc6f43d1c4424a5bdab1e39fe1e29e8b3ca47ae3 /arch/x86/include
parentx86: TSC deadline definitions (diff)
downloadlinux-a3e06bbe8445f57eb949e6474c5a9b30f24d2057.tar.xz
linux-a3e06bbe8445f57eb949e6474c5a9b30f24d2057.zip
KVM: emulate lapic tsc deadline timer for guest
This patch emulate lapic tsc deadline timer for guest: Enumerate tsc deadline timer capability by CPUID; Enable tsc deadline timer mode by lapic MMIO; Start tsc deadline timer by WRMSR; [jan: use do_div()] [avi: fix for !irqchip_in_kernel()] [marcelo: another fix for !irqchip_in_kernel()] Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/kvm_host.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index ab62711ccb78..b4973f4dab98 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -674,6 +674,8 @@ u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn);
extern bool tdp_enabled;
+u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
+
/* control of guest tsc rate supported? */
extern bool kvm_has_tsc_control;
/* minimum supported tsc_khz for guests */