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  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]
Date:   Wed, 15 Sep 2021 15:49:20 -0000
From:   "tip-bot2 for Peter Zijlstra" <>
Cc:     "Peter Zijlstra (Intel)" <>,
        Juergen Gross <>,,
Subject: [tip: objtool/core] x86/xen: Make hypercall_page noinstr

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     9f38b2a0baf1e5c7a1d1231cd8fe706c6f769a73
Author:        Peter Zijlstra <>
AuthorDate:    Thu, 24 Jun 2021 11:41:18 +02:00
Committer:     Peter Zijlstra <>
CommitterDate: Wed, 15 Sep 2021 15:51:50 +02:00

x86/xen: Make hypercall_page noinstr

vmlinux.o: warning: objtool: xen_set_debugreg()+0x3: call to hypercall_page() leaves .noinstr.text section
vmlinux.o: warning: objtool: xen_get_debugreg()+0x3: call to hypercall_page() leaves .noinstr.text section
vmlinux.o: warning: objtool: xen_irq_enable()+0x24: call to hypercall_page() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <>
Reviewed-by: Juergen Gross <>
 arch/x86/xen/xen-head.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index 488944d..9e27b86 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -20,7 +20,7 @@
 #include <xen/interface/xen-mca.h>
 #include <asm/xen/interface.h>
-.pushsection .text
+.pushsection .noinstr.text, "ax"
 	.balign PAGE_SIZE
 	.rept (PAGE_SIZE / 32)

Powered by blists - more mailing lists