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authorWanpeng Li <wanpengli@tencent.com>2020-04-28 14:23:28 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2020-05-15 12:26:21 -0400
commitae95f566b3d22ade75c67827f1171594dacc9a03 (patch)
tree844a39327fc4c0862899716f7c59cd01e693878f /arch/x86/video
parent199a8b84c455cfeb81bc060c6824dea473e54dc3 (diff)
downloadlinux-ae95f566b3d22ade75c67827f1171594dacc9a03.tar.bz2
KVM: X86: TSCDEADLINE MSR emulation fastpath
This patch implements a fast path for emulation of writes to the TSCDEADLINE MSR. Besides shortcutting various housekeeping tasks in the vCPU loop, the fast path can also deliver the timer interrupt directly without going through KVM_REQ_PENDING_TIMER because it runs in vCPU context. Tested-by: Haiwei Li <lihaiwei@tencent.com> Cc: Haiwei Li <lihaiwei@tencent.com> Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1588055009-12677-7-git-send-email-wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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