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Mon, 16 Sep 2024 04:58:13 -0700 (PDT) From: Andrew Cooper To: Xen-devel Cc: Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= , Frediano Ziglio Subject: [PATCH] x86/boot: Drop stale comment about zeroing the stack Date: Mon, 16 Sep 2024 12:58:11 +0100 Message-Id: <20240916115811.2076392-1-andrew.cooper3@citrix.com> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @citrix.com) X-ZM-MESSAGEID: 1726487932588116600 This used to be true, but was altered by commit 37786b23b027 ("x86/cet: Rem= ove writeable mapping of the BSPs shadow stack") which moved cpu0_stack into .init.bss.stack_aligned. Fixes: 37786b23b027 ("x86/cet: Remove writeable mapping of the BSPs shadow = stack") Signed-off-by: Andrew Cooper Acked-by: Frediano Ziglio Acked-by: Jan Beulich --- CC: Jan Beulich CC: Roger Pau Monn=C3=A9 CC: Frediano Ziglio --- xen/arch/x86/boot/head.S | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/xen/arch/x86/boot/head.S b/xen/arch/x86/boot/head.S index 12bbb97f33d4..cfc5a7b47d29 100644 --- a/xen/arch/x86/boot/head.S +++ b/xen/arch/x86/boot/head.S @@ -652,11 +652,7 @@ trampoline_setup: cmpb $0, sym_esi(efi_platform) jnz 1f =20 - /* - * Initialise the BSS. - * - * !!! WARNING - also zeroes the current stack !!! - */ + /* Initialise the BSS. */ lea sym_esi(__bss_start), %edi lea sym_esi(__bss_end), %ecx sub %edi,%ecx base-commit: a8bf14f6f331d4f428010b4277b67c33f561ed19 --=20 2.39.2