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    SubjectRe: [PATCH v2 13/13] KVM: x86: Protect pmu_intel.c from Spectre-v1/L1TF attacks
    On Wed, Dec 11, 2019 at 12:49 PM Marios Pomonis <pomonis@google.com> wrote:
    >
    > This fixes Spectre-v1/L1TF vulnerabilities in intel_find_fixed_event()
    > and intel_rdpmc_ecx_to_pmc().
    > kvm_rdpmc() (ancestor of intel_find_fixed_event()) and
    > reprogram_fixed_counter() (ancestor of intel_rdpmc_ecx_to_pmc()) are
    > exported symbols so KVM should treat them conservatively from a security
    > perspective.
    >
    > Fixes: commit 25462f7f5295 ("KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch")
    >
    > Signed-off-by: Nick Finco <nifi@google.com>
    > Signed-off-by: Marios Pomonis <pomonis@google.com>
    > Reviewed-by: Andrew Honig <ahonig@google.com>
    > Cc: stable@vger.kernel.org

    Reviewed-by: Jim Mattson <jmattson@google.com>

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