Messages in this thread | | | Date | Mon, 26 Sep 2022 16:09:15 -0400 | Subject | Re: [PATCH 1/3] xen/pv: allow pmu msr accesses to cause GP | From | Boris Ostrovsky <> |
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On 9/26/22 10:18 AM, Juergen Gross wrote: > bool pmu_msr_read(unsigned int msr, uint64_t *val, int *err) > { > if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL) { > - if (is_amd_pmu_msr(msr)) { > - if (!xen_amd_pmu_emulate(msr, val, 1)) > - *val = native_read_msr_safe(msr, err); > - return true; > + if (!is_amd_pmu_msr(msr))
You should be able to move vendor check inside is_<vendor>_pmu_msr().
-boris
> + return false; > + if (!xen_amd_pmu_emulate(msr, val, 1)) { > + *val = err ? native_read_msr_safe(msr, err) > + : native_read_msr(msr); > } > + return true; > } else {
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