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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 May 2025 17:10:45.7195 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: cb65ba3d-65e4-41ad-44c9-08dd8f1c700c X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DU2PEPF00028D0D.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AS2PR08MB8455 Hi Ard, > From: Ard Biesheuvel > > Move any variables accessed or assigned by the startup code out of BSS, > and into .data, so that we can forbid the use of BSS variables > altogether, by ASSERT()'ing in the linker script that each symbol made > available to the startup code lives before __bss_start in the linker > map. > > Changes since v1: > - fix build error due to missing declaration in #1 > - work around Clang complaining about the ASSERT() expression in the > linker script > > Cc: Yeoreum Yun Sorry for late. with commit 117c3b21d3c7 ("arm64: Rework checks for broken Cavium HW in the PI code"): Tested-by: Yeoreum Yun Reviewed-by: Yeoreum Yun Thanks! > > Ard Biesheuvel (3): > arm64/boot: Move init_pgdir[] and init_idmap_pgdir[] into __pi_ > namespace > arm64/boot: Move global CPU override variables out of BSS > arm64/boot: Disallow BSS exports to startup code > > arch/arm64/include/asm/pgtable.h | 2 - > arch/arm64/kernel/cpufeature.c | 22 +++---- > arch/arm64/kernel/head.S | 6 +- > arch/arm64/kernel/image-vars.h | 66 ++++++++++---------- > arch/arm64/kernel/pi/pi.h | 1 + > arch/arm64/kernel/vmlinux.lds.S | 10 +-- > 6 files changed, 54 insertions(+), 53 deletions(-) > > > base-commit: 363cd2b81cfdf706bbfc9ec78db000c9b1ecc552 > -- > 2.49.0.987.g0cc8ee98dc-goog > -- Sincerely, Yeoreum Yun