public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Heiko Carstens <hca@linux.ibm.com>
To: "Jason A . Donenfeld" <Jason@zx2c4.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>,
	Vasily Gorbik <gor@linux.ibm.com>,
	Christian Borntraeger <borntraeger@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Harald Freudenberger <freude@linux.ibm.com>,
	Stefan Liebler <stli@linux.ibm.com>,
	linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org,
	linux-s390@vger.kernel.org
Subject: [PATCH 2/7] s390/alternatives: Remove ALT_FACILITY_EARLY
Date: Fri, 13 Sep 2024 15:05:38 +0200	[thread overview]
Message-ID: <20240913130544.2398678-3-hca@linux.ibm.com> (raw)
In-Reply-To: <20240913130544.2398678-1-hca@linux.ibm.com>

Patch all alternatives which depend on facilities from the decompressor.
There is no technical reason which enforces to split patching of such
alternatives to the decompressor and the kernel.

This simplifies alternative handling a bit, since one alternative type is
removed.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
 arch/s390/include/asm/alternative.h | 6 +-----
 arch/s390/kernel/entry.S            | 2 +-
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
index de980c938a3e..73e781b56bfe 100644
--- a/arch/s390/include/asm/alternative.h
+++ b/arch/s390/include/asm/alternative.h
@@ -39,11 +39,7 @@
 #define ALT_TYPE_SHIFT		20
 #define ALT_CTX_SHIFT		28
 
-#define ALT_FACILITY_EARLY(facility)	(ALT_CTX_EARLY << ALT_CTX_SHIFT		| \
-					 ALT_TYPE_FACILITY << ALT_TYPE_SHIFT	| \
-					 (facility) << ALT_DATA_SHIFT)
-
-#define ALT_FACILITY(facility)		(ALT_CTX_LATE << ALT_CTX_SHIFT		| \
+#define ALT_FACILITY(facility)		(ALT_CTX_EARLY << ALT_CTX_SHIFT		| \
 					 ALT_TYPE_FACILITY << ALT_TYPE_SHIFT	| \
 					 (facility) << ALT_DATA_SHIFT)
 
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 749410cfdbc0..269436665d02 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -42,7 +42,7 @@ _LPP_OFFSET	= __LC_LPP
 
 	.macro LPSWEY address, lpswe
 	ALTERNATIVE_2 "b \lpswe;nopr", \
-		".insn siy,0xeb0000000071,\address,0", ALT_FACILITY_EARLY(193),		\
+		".insn siy,0xeb0000000071,\address,0", ALT_FACILITY(193),		\
 		__stringify(.insn siy,0xeb0000000071,LOWCORE_ALT_ADDRESS+\address,0),	\
 		ALT_LOWCORE
 	.endm
-- 
2.43.0


  parent reply	other threads:[~2024-09-13 13:05 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-09-13 13:05 [PATCH 0/7] s390/vdso: getrandom() vdso implementation Heiko Carstens
2024-09-13 13:05 ` [PATCH 1/7] s390/facility: Disable compile time optimization for decompressor code Heiko Carstens
2024-09-13 13:05 ` Heiko Carstens [this message]
2024-09-13 13:05 ` [PATCH 3/7] s390/facility: Let test_facility() generate static branch if possible Heiko Carstens
2024-09-13 13:05 ` [PATCH 4/7] s390/module: Provide find_section() helper Heiko Carstens
2024-09-13 13:05 ` [PATCH 5/7] s390/vdso: Allow alternatives in vdso code Heiko Carstens
2024-09-13 13:05 ` [PATCH 6/7] s390/vdso: Move vdso symbol handling to separate header file Heiko Carstens
2024-09-13 13:05 ` [PATCH 7/7] s390/vdso: Wire up getrandom() vdso implementation Heiko Carstens
2024-09-13 13:53   ` Jason A. Donenfeld
2024-09-13 14:16     ` Heiko Carstens
2024-09-13 14:57       ` Jason A. Donenfeld
2024-09-13 17:37         ` Heiko Carstens
2024-09-13 14:13   ` Harald Freudenberger
2024-09-13 15:13   ` Jason A. Donenfeld
2024-09-13 15:22     ` Jason A. Donenfeld
2024-09-13 15:24       ` Jason A. Donenfeld
2024-09-13 17:32       ` Heiko Carstens
2024-09-13 19:23         ` Jason A. Donenfeld
2024-09-14 17:42           ` Heiko Carstens
2024-09-14 23:11             ` [PATCH] selftests: vDSO: check cpu caps before running chacha test Jason A. Donenfeld
2024-09-16  9:08             ` [PATCH 7/7] s390/vdso: Wire up getrandom() vdso implementation Jason A. Donenfeld
2024-09-16 11:01               ` Heiko Carstens
2024-09-16 11:23                 ` Jason A. Donenfeld
2024-09-13 13:52 ` [PATCH 0/7] s390/vdso: " Jason A. Donenfeld
2024-09-13 13:56   ` Jason A. Donenfeld
2024-09-13 14:29     ` Heiko Carstens
2024-09-13 14:57       ` Jason A. Donenfeld

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240913130544.2398678-3-hca@linux.ibm.com \
    --to=hca@linux.ibm.com \
    --cc=Jason@zx2c4.com \
    --cc=agordeev@linux.ibm.com \
    --cc=borntraeger@linux.ibm.com \
    --cc=freude@linux.ibm.com \
    --cc=gor@linux.ibm.com \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=stli@linux.ibm.com \
    --cc=svens@linux.ibm.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox