diff options
| author | Kai Huang <kai.huang@intel.com> | 2024-10-30 22:00:15 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-03-14 21:20:50 +0300 |
| commit | 45154fb010f7fdd99a67ce110f2abd646eaa209b (patch) | |
| tree | e86408695247fed360d6e886d82b750714533858 | |
| parent | fcdbdf63431c9faf639bffc957ea2ce9b545432e (diff) | |
| download | linux-45154fb010f7fdd99a67ce110f2abd646eaa209b.tar.xz | |
KVM: TDX: Get TDX global information
KVM will need to consult some essential TDX global information to create
and run TDX guests. Get the global information after initializing TDX.
Signed-off-by: Kai Huang <kai.huang@intel.com>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Message-ID: <20241030190039.77971-3-rick.p.edgecombe@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/kvm/vmx/tdx.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 3c089ed3b843..b74a50e8d086 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -13,6 +13,8 @@ module_param_named(tdx, enable_tdx, bool, 0444); static enum cpuhp_state tdx_cpuhp_state; +static const struct tdx_sys_info *tdx_sysinfo; + static int tdx_online_cpu(unsigned int cpu) { unsigned long flags; @@ -92,11 +94,20 @@ static int __init __tdx_bringup(void) if (r) goto tdx_bringup_err; + /* Get TDX global information for later use */ + tdx_sysinfo = tdx_get_sysinfo(); + if (WARN_ON_ONCE(!tdx_sysinfo)) { + r = -EINVAL; + goto get_sysinfo_err; + } + /* * Leave hardware virtualization enabled after TDX is enabled * successfully. TDX CPU hotplug depends on this. */ return 0; +get_sysinfo_err: + __tdx_cleanup(); tdx_bringup_err: kvm_disable_virtualization(); return r; |