Commit d3529bb7 authored by Joerg Roedel's avatar Joerg Roedel Committed by Borislav Petkov
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x86/sev-es: Wire up existing #VC exit-code handlers 



Re-use the handlers for CPUID- and IOIO-caused #VC exceptions in the
early boot handler.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-48-joro@8bytes.org
parent 0786138c

arch/x86/kernel/sev-es-shared.c

+3 −4
Original line number Diff line number Diff line
@@ -325,8 +325,7 @@ static enum es_result vc_ioio_exitinfo(struct es_em_ctxt *ctxt, u64 *exitinfo) 
	return ES_OK;

}



static enum es_result __maybe_unused

vc_handle_ioio(struct ghcb *ghcb, struct es_em_ctxt *ctxt)

static enum es_result vc_handle_ioio(struct ghcb *ghcb, struct es_em_ctxt *ctxt)

{

	struct pt_regs *regs = ctxt->regs;

	u64 exit_info_1, exit_info_2;
@@ -434,7 +433,7 @@ vc_handle_ioio(struct ghcb *ghcb, struct es_em_ctxt *ctxt) 
	return ret;

}



static enum es_result __maybe_unused vc_handle_cpuid(struct ghcb *ghcb,

static enum es_result vc_handle_cpuid(struct ghcb *ghcb,

				      struct es_em_ctxt *ctxt)

{

	struct pt_regs *regs = ctxt->regs;

arch/x86/kernel/sev-es.c

+6 −0
Original line number Diff line number Diff line
@@ -441,6 +441,12 @@ static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, 
	enum es_result result;



	switch (exit_code) {

	case SVM_EXIT_CPUID:

		result = vc_handle_cpuid(ghcb, ctxt);

		break;

	case SVM_EXIT_IOIO:

		result = vc_handle_ioio(ghcb, ctxt);

		break;

	default:

		/*

		 * Unexpected #VC exception