| Date | Sun, 13 Mar 2022 15:08:47 +0100 | Subject | Re: [RFC PATCH v5 013/104] KVM: TDX: Add TDX "architectural" error codes | From | Paolo Bonzini <> |
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On 3/4/22 20:48, isaku.yamahata@intel.com wrote: > From: Sean Christopherson <sean.j.christopherson@intel.com> > > 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>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
> --- > arch/x86/kvm/vmx/tdx_errno.h | 29 +++++++++++++++++++++++++++++ > 1 file changed, 29 insertions(+) > create mode 100644 arch/x86/kvm/vmx/tdx_errno.h > > diff --git a/arch/x86/kvm/vmx/tdx_errno.h b/arch/x86/kvm/vmx/tdx_errno.h > new file mode 100644 > index 000000000000..5c878488795d > --- /dev/null > +++ b/arch/x86/kvm/vmx/tdx_errno.h > @@ -0,0 +1,29 @@ > +/* SPDX-License-Identifier: GPL-2.0 */ > +/* architectural status code for SEAMCALL */ > + > +#ifndef __KVM_X86_TDX_ERRNO_H > +#define __KVM_X86_TDX_ERRNO_H > + > +#define TDX_SEAMCALL_STATUS_MASK 0xFFFFFFFF00000000ULL > + > +/* > + * TDX SEAMCALL Status Codes (returned in RAX) > + */ > +#define TDX_SUCCESS 0x0000000000000000ULL > +#define TDX_NON_RECOVERABLE_VCPU 0x4000000100000000ULL > +#define TDX_INTERRUPTED_RESUMABLE 0x8000000300000000ULL > +#define TDX_LIFECYCLE_STATE_INCORRECT 0xC000060700000000ULL > +#define TDX_VCPU_NOT_ASSOCIATED 0x8000070200000000ULL > +#define TDX_KEY_GENERATION_FAILED 0x8000080000000000ULL > +#define TDX_KEY_STATE_INCORRECT 0xC000081100000000ULL > +#define TDX_KEY_CONFIGURED 0x0000081500000000ULL > +#define TDX_EPT_WALK_FAILED 0xC0000B0000000000ULL > + > +/* > + * TDG.VP.VMCALL Status Codes (returned in R10) > + */ > +#define TDG_VP_VMCALL_SUCCESS 0x0000000000000000ULL > +#define TDG_VP_VMCALL_INVALID_OPERAND 0x8000000000000000ULL > +#define TDG_VP_VMCALL_TDREPORT_FAILED 0x8000000000000001ULL > + > +#endif /* __KVM_X86_TDX_ERRNO_H */
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