Kuppuswamy Sathyanarayanan cfb8ec7a31 x86/tdx: Wire up KVM hypercalls ... KVM hypercalls use the VMCALL or VMMCALL instructions. Although the ABI is similar, those instructions no longer function for TDX guests. Make vendor-specific TDVMCALLs instead of VMCALL. This enables TDX guests to run with KVM acting as the hypervisor. Among other things, KVM hypercall is used to send IPIs. Since the KVM driver can be built as a kernel module, export tdx_kvm_hypercall() to make the symbols visible to kvm.ko. Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20220405232939.73860-20-kirill.shutemov@linux.intel.com		2022-04-07 08:27:52 -07:00
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tdx	x86/tdx: Wire up KVM hypercalls	2022-04-07 08:27:52 -07:00
core.c	x86/tdx: Port I/O: Add runtime hypercalls	2022-04-07 08:27:52 -07:00
Makefile	x86/tdx: Detect running as a TDX guest in early boot	2022-04-07 08:27:50 -07:00