diff options
Diffstat (limited to 'drivers/platform/x86/intel/pmc/pltdrv.c')
| -rw-r--r-- | drivers/platform/x86/intel/pmc/pltdrv.c | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/drivers/platform/x86/intel/pmc/pltdrv.c b/drivers/platform/x86/intel/pmc/pltdrv.c index 15ca8afdd973..3141d6cbc41b 100644 --- a/drivers/platform/x86/intel/pmc/pltdrv.c +++ b/drivers/platform/x86/intel/pmc/pltdrv.c @@ -18,6 +18,8 @@ #include <asm/cpu_device_id.h> #include <asm/intel-family.h> +#include <xen/xen.h> + static void intel_pmc_core_release(struct device *dev) { kfree(dev); @@ -33,14 +35,14 @@ static struct platform_device *pmc_core_device; * other list may grow, but this list should not. */ static const struct x86_cpu_id intel_pmc_core_platform_ids[] = { - X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &pmc_core_device), - X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &pmc_core_device), + X86_MATCH_VFM(INTEL_SKYLAKE_L, &pmc_core_device), + X86_MATCH_VFM(INTEL_SKYLAKE, &pmc_core_device), + X86_MATCH_VFM(INTEL_KABYLAKE_L, &pmc_core_device), + X86_MATCH_VFM(INTEL_KABYLAKE, &pmc_core_device), + X86_MATCH_VFM(INTEL_CANNONLAKE_L, &pmc_core_device), + X86_MATCH_VFM(INTEL_ICELAKE_L, &pmc_core_device), + X86_MATCH_VFM(INTEL_COMETLAKE, &pmc_core_device), + X86_MATCH_VFM(INTEL_COMETLAKE_L, &pmc_core_device), {} }; MODULE_DEVICE_TABLE(x86cpu, intel_pmc_core_platform_ids); @@ -53,6 +55,13 @@ static int __init pmc_core_platform_init(void) if (acpi_dev_present("INT33A1", NULL, -1)) return -ENODEV; + /* + * Skip forcefully attaching the device for VMs. Make an exception for + * Xen dom0, which does have full hardware access. + */ + if (cpu_feature_enabled(X86_FEATURE_HYPERVISOR) && !xen_initial_domain()) + return -ENODEV; + if (!x86_match_cpu(intel_pmc_core_platform_ids)) return -ENODEV; @@ -77,4 +86,5 @@ static void __exit pmc_core_platform_exit(void) module_init(pmc_core_platform_init); module_exit(pmc_core_platform_exit); +MODULE_DESCRIPTION("Intel PMC Core platform driver"); MODULE_LICENSE("GPL v2"); |