diff options
Diffstat (limited to 'arch/x86/kernel/cpu/mshyperv.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mshyperv.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index fe5393d759d3..4c5a174935ca 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -40,6 +40,10 @@ bool hv_root_partition; bool hv_nested; struct ms_hyperv_info ms_hyperv; +/* Used in modules via hv_do_hypercall(): see arch/x86/include/asm/mshyperv.h */ +bool hyperv_paravisor_present __ro_after_init; +EXPORT_SYMBOL_GPL(hyperv_paravisor_present); + #if IS_ENABLED(CONFIG_HYPERV) static inline unsigned int hv_get_nested_reg(unsigned int reg) { @@ -429,6 +433,8 @@ static void __init ms_hyperv_init_platform(void) ms_hyperv.shared_gpa_boundary = BIT_ULL(ms_hyperv.shared_gpa_boundary_bits); + hyperv_paravisor_present = !!ms_hyperv.paravisor_present; + pr_info("Hyper-V: Isolation Config: Group A 0x%x, Group B 0x%x\n", ms_hyperv.isolation_config_a, ms_hyperv.isolation_config_b); @@ -526,8 +532,7 @@ static void __init ms_hyperv_init_platform(void) #if IS_ENABLED(CONFIG_HYPERV) if ((hv_get_isolation_type() == HV_ISOLATION_TYPE_VBS) || - ((hv_get_isolation_type() == HV_ISOLATION_TYPE_SNP) && - ms_hyperv.paravisor_present)) + ms_hyperv.paravisor_present) hv_vtom_init(); /* * Setup the hook to get control post apic initialization. |