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kvm: vmx: Set IA32_TSC_AUX for legacy mode guests
authorJim Mattson <jmattson@google.com>
Wed, 5 Dec 2018 23:28:58 +0000 (15:28 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 5 Dec 2019 08:20:16 +0000 (09:20 +0100)
commit279bbd22774b542aa6ab7b1fa0303678738912a1
tree2a026f6397e34b45db7716a60bfbc13d8dfe56e7
parent06f464df98351f823c7c30c489e0e6cf15eb8d77
kvm: vmx: Set IA32_TSC_AUX for legacy mode guests

[ Upstream commit 0023ef39dc35c773c436eaa46ca539a26b308b55 ]

RDTSCP is supported in legacy mode as well as long mode. The
IA32_TSC_AUX MSR should be set to the correct guest value before
entering any guest that supports RDTSCP.

Fixes: 4e47c7a6d714 ("KVM: VMX: Add instruction rdtscp support for guest")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Peter Shier <pshier@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/x86/kvm/vmx.c