linux-kernel - [PATCH 10/14] riscv/paravirt: use common code for paravirt_steal

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250911063433.13783-11-jgross@suse.com>
Date: Thu, 11 Sep 2025 08:34:29 +0200
From: Juergen Gross <jgross@...e.com>
To: linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	virtualization@...ts.linux.dev,
	x86@...nel.org
Cc: Juergen Gross <jgross@...e.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Ajay Kaher <ajay.kaher@...adcom.com>,
	Alexey Makhalov <alexey.makhalov@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>
Subject: [PATCH 10/14] riscv/paravirt: use common code for paravirt_steal_clock()

Remove the arch specific variant of paravirt_steal_clock() and use
the common one instead.

Signed-off-by: Juergen Gross <jgross@...e.com>
---
 arch/riscv/Kconfig                |  1 +
 arch/riscv/include/asm/paravirt.h | 10 ----------
 arch/riscv/kernel/paravirt.c      |  7 -------
 3 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 51dcd8eaa243..8a7573aebaca 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -1108,6 +1108,7 @@ config COMPAT
 config PARAVIRT
 	bool "Enable paravirtualization code"
 	depends on RISCV_SBI
+	select HAVE_PV_STEAL_CLOCK_GEN
 	help
 	  This changes the kernel so it can modify itself when it is run
 	  under a hypervisor, potentially improving performance significantly
diff --git a/arch/riscv/include/asm/paravirt.h b/arch/riscv/include/asm/paravirt.h
index 17e5e39c72c0..c49c55b266f3 100644
--- a/arch/riscv/include/asm/paravirt.h
+++ b/arch/riscv/include/asm/paravirt.h
@@ -3,16 +3,6 @@
 #define _ASM_RISCV_PARAVIRT_H
 
 #ifdef CONFIG_PARAVIRT
-#include <linux/static_call_types.h>
-
-u64 dummy_steal_clock(int cpu);
-
-DECLARE_STATIC_CALL(pv_steal_clock, dummy_steal_clock);
-
-static inline u64 paravirt_steal_clock(int cpu)
-{
-	return static_call(pv_steal_clock)(cpu);
-}
 
 int __init pv_time_init(void);
 
diff --git a/arch/riscv/kernel/paravirt.c b/arch/riscv/kernel/paravirt.c
index d3c334f16172..5f56be79cd06 100644
--- a/arch/riscv/kernel/paravirt.c
+++ b/arch/riscv/kernel/paravirt.c
@@ -23,13 +23,6 @@
 #include <asm/paravirt.h>
 #include <asm/sbi.h>
 
-static u64 native_steal_clock(int cpu)
-{
-	return 0;
-}
-
-DEFINE_STATIC_CALL(pv_steal_clock, native_steal_clock);
-
 static bool steal_acc = true;
 static int __init parse_no_stealacc(char *arg)
 {
-- 
2.51.0