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H A D | pmu-emul.c | ec3eb9ed6081bea8ebf603ff545dba127071b928 Sat Aug 19 04:39:44 UTC 2023 Reiji Watanabe <reijiw@google.com> KVM: arm64: PMU: Disallow vPMU on non-uniform PMUVer
Disallow userspace from configuring vPMU for guests on systems where the PMUVer is not uniform across all PEs. KVM has not been advertising PMUv3 to the guests with vPMU on such systems anyway, and such systems would be extremely uncommon and unlikely to even use KVM.
Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230819043947.4100985-2-reijiw@google.com ec3eb9ed6081bea8ebf603ff545dba127071b928 Sat Aug 19 04:39:44 UTC 2023 Reiji Watanabe <reijiw@google.com> KVM: arm64: PMU: Disallow vPMU on non-uniform PMUVer
Disallow userspace from configuring vPMU for guests on systems where the PMUVer is not uniform across all PEs. KVM has not been advertising PMUv3 to the guests with vPMU on such systems anyway, and such systems would be extremely uncommon and unlikely to even use KVM.
Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230819043947.4100985-2-reijiw@google.com ec3eb9ed6081bea8ebf603ff545dba127071b928 Sat Aug 19 04:39:44 UTC 2023 Reiji Watanabe <reijiw@google.com> KVM: arm64: PMU: Disallow vPMU on non-uniform PMUVer
Disallow userspace from configuring vPMU for guests on systems where the PMUVer is not uniform across all PEs. KVM has not been advertising PMUv3 to the guests with vPMU on such systems anyway, and such systems would be extremely uncommon and unlikely to even use KVM.
Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230819043947.4100985-2-reijiw@google.com ec3eb9ed6081bea8ebf603ff545dba127071b928 Sat Aug 19 04:39:44 UTC 2023 Reiji Watanabe <reijiw@google.com> KVM: arm64: PMU: Disallow vPMU on non-uniform PMUVer
Disallow userspace from configuring vPMU for guests on systems where the PMUVer is not uniform across all PEs. KVM has not been advertising PMUv3 to the guests with vPMU on such systems anyway, and such systems would be extremely uncommon and unlikely to even use KVM.
Signed-off-by: Reiji Watanabe <reijiw@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20230819043947.4100985-2-reijiw@google.com
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