On Mon, Oct 31, 2022 at 05:22:13PM +0800, Binbin Wu <binbin.wu@xxxxxxxxxxxxxxx> wrote: > > On 2022/10/30 14:22, isaku.yamahata@xxxxxxxxx wrote: > > From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> > > > > 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@xxxxxxxxx> > > Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> > > Reviewed-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > --- > > arch/x86/kvm/vmx/tdx_errno.h | 38 ++++++++++++++++++++++++++++++++++++ > > 1 file changed, 38 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..ce246ba62454 > > --- /dev/null > > +++ b/arch/x86/kvm/vmx/tdx_errno.h > > @@ -0,0 +1,38 @@ > > +/* 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_OPERAND_BUSY 0x8000020000000000ULL > > one minor format issue, spaces are used instread of tabs this line. Thanks, fixed it locally. It will be include in the next respin. -- Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
