Commit 514ef776 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

x86/boot/compressed/sev-es: Convert to insn_decode() 



Other than simplifying the code there should be no functional changes
resulting from this.

Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20210304174237.31945-7-bp@alien8.de
parent 6e8c83d2

arch/x86/boot/compressed/sev-es.c

+5 −6
Original line number Diff line number Diff line
@@ -78,16 +78,15 @@ static inline void sev_es_wr_ghcb_msr(u64 val) 
static enum es_result vc_decode_insn(struct es_em_ctxt *ctxt)

{

	char buffer[MAX_INSN_SIZE];

	enum es_result ret;

	int ret;



	memcpy(buffer, (unsigned char *)ctxt->regs->ip, MAX_INSN_SIZE);



	insn_init(&ctxt->insn, buffer, MAX_INSN_SIZE, 1);

	insn_get_length(&ctxt->insn);

	ret = insn_decode(&ctxt->insn, buffer, MAX_INSN_SIZE, INSN_MODE_64);

	if (ret < 0)

		return ES_DECODE_FAILED;



	ret = ctxt->insn.immediate.got ? ES_OK : ES_DECODE_FAILED;



	return ret;

	return ES_OK;

}



static enum es_result vc_write_mem(struct es_em_ctxt *ctxt,