diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2024-10-30 12:00:26 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-03-14 14:20:50 -0400 |
| commit | 1001d9886f25a88c3b6a097bea98572c1f9b9380 (patch) | |
| tree | 70e1d83ee891e80d368292f5782deac249679cc3 /arch/x86/include/asm/shared | |
| parent | KVM: TDX: Define TDX architectural definitions (diff) | |
| download | linux-1001d9886f25a88c3b6a097bea98572c1f9b9380.tar.gz linux-1001d9886f25a88c3b6a097bea98572c1f9b9380.zip | |
KVM: TDX: Add TDX "architectural" error codes
Add error codes for the TDX SEAMCALLs both for TDX VMM side for TDH
SEAMCALL and TDX guest side for TDG.VP.VMCALL. KVM issues the TDX
SEAMCALLs and checks its error code. KVM handles hypercall from the TDX
guest and may return an error. So error code for the TDX guest is also
needed.
TDX SEAMCALL uses bits 31:0 to return more information, so these error
codes will only exactly match RAX[63:32]. Error codes for TDG.VP.VMCALL is
defined by TDX Guest-Host-Communication interface spec.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Isaku Yamahata <isaku.yamahata@intel.com>
Signed-off-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Yuan Yao <yuan.yao@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-ID: <20241030190039.77971-14-rick.p.edgecombe@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/shared')
| -rw-r--r-- | arch/x86/include/asm/shared/tdx.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h index fcbbef484a78..4aedab1f2a1a 100644 --- a/arch/x86/include/asm/shared/tdx.h +++ b/arch/x86/include/asm/shared/tdx.h @@ -71,7 +71,12 @@ #define TDVMCALL_GET_QUOTE 0x10002 #define TDVMCALL_REPORT_FATAL_ERROR 0x10003 -#define TDVMCALL_STATUS_RETRY 1 +/* + * TDG.VP.VMCALL Status Codes (returned in R10) + */ +#define TDVMCALL_STATUS_SUCCESS 0x0000000000000000ULL +#define TDVMCALL_STATUS_RETRY 0x0000000000000001ULL +#define TDVMCALL_STATUS_INVALID_OPERAND 0x8000000000000000ULL /* * Bitmasks of exposed registers (with VMM). |