From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH v3 06/21] x86/boot/compressed/sev-es: Convert to insn_decode()
Date: Thu, 4 Mar 2021 18:42:22 +0100 [thread overview]
Message-ID: <20210304174237.31945-7-bp@alien8.de> (raw)
In-Reply-To: <20210304174237.31945-1-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
Other than simplifying the code there should be no functional changes
resulting from this.
Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/x86/boot/compressed/sev-es.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/x86/boot/compressed/sev-es.c b/arch/x86/boot/compressed/sev-es.c
index 27826c265aab..801c626fc3d4 100644
--- a/arch/x86/boot/compressed/sev-es.c
+++ b/arch/x86/boot/compressed/sev-es.c
@@ -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,
--
2.29.2
next prev parent reply other threads:[~2021-03-04 17:46 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-04 17:42 [PATCH v3 00/21] x86/insn: Add an insn_decode() API Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 01/21] x86/insn: Rename insn_decode() to insn_decode_from_regs() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 02/21] x86/insn: Add @buf_len param to insn_init() kernel-doc comment Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 03/21] x86/insn: Add a __ignore_sync_check__ marker Borislav Petkov
2021-03-12 3:07 ` Masami Hiramatsu
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 04/21] x86/insn: Add an insn_decode() API Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-15 16:53 ` Peter Zijlstra
2021-03-17 1:14 ` [PATCH v3 04/21] " Ian Rogers
2021-03-24 13:43 ` Arnaldo Carvalho de Melo
2021-03-24 13:54 ` Borislav Petkov
2021-03-24 18:21 ` Ian Rogers
2021-03-24 18:52 ` Arnaldo Carvalho de Melo
2021-03-04 17:42 ` [PATCH v3 05/21] x86/insn-eval: Handle return values from the decoder Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` Borislav Petkov [this message]
2021-03-15 15:47 ` [tip: x86/core] x86/boot/compressed/sev-es: Convert to insn_decode() tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 07/21] perf/x86/intel/ds: Check insn_get_length() retval Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 08/21] perf/x86/intel/ds: Check return values of insn decoder functions Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 09/21] x86/alternative: Use insn_decode() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 10/21] x86/mce: Convert to insn_decode() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 11/21] x86/kprobes: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 12/21] x86/sev-es: Split vc_decode_insn() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 13/21] x86/sev-es: Convert to insn_decode() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 14/21] x86/traps: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 15/21] x86/uprobes: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 16/21] x86/tools/insn_decoder_test: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 17/21] tools/objtool: " Borislav Petkov
2021-03-04 17:49 ` Peter Zijlstra
2021-03-04 18:06 ` Borislav Petkov
2021-03-05 8:55 ` Peter Zijlstra
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 18/21] x86/tools/insn_sanity: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 19/21] tools/perf: " Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 20/21] x86/insn: Remove kernel_insn_init() Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
2021-03-04 17:42 ` [PATCH v3 21/21] x86/insn: Make insn_complete() static Borislav Petkov
2021-03-15 15:47 ` [tip: x86/core] " tip-bot2 for Borislav Petkov
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