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OpenCloudOS-Kernel/drivers/firmware
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Ard Biesheuvel 5ad5dcfd75 x86/efistub: Don't clear BSS twice in mixed mode 
[ Upstream commit df7ecce842b846a04d087ba85fdb79a90e26a1b0 ]

Clearing BSS should only be done once, at the very beginning.
efi_pe_entry() is the entrypoint from the firmware, which may not clear
BSS and so it is done explicitly. However, efi_pe_entry() is also used
as an entrypoint by the mixed mode startup code, in which case BSS will
already have been cleared, and doing it again at this point will corrupt
global variables holding the firmware's GDT/IDT and segment selectors.

So make the memset() conditional on whether the EFI stub is running in
native mode.

Fixes: b3810c5a2cc4a666 ("x86/efistub: Clear decompressor BSS in native EFI entrypoint")
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-03-26 18:20:13 -04:00
..
arm_ffa firmware: arm_ffa: Allow the FF-A drivers to use 32bit mode of messaging 2023-11-20 11:59:16 +01:00
arm_scmi firmware: arm_scmi: Fix double free in SMC transport cleanup path 2024-03-26 18:19:32 -04:00
broadcom MIPS: BCM47XX: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:51 -07:00
cirrus firmware: cirrus: cs_dsp: Only log list of algorithms in debug build 2023-09-13 18:50:32 +01:00
efi x86/efistub: Don't clear BSS twice in mixed mode 2024-03-26 18:20:13 -04:00
google firmware: coreboot: framebuffer: Allow building with simpledrm 2023-08-04 16:31:32 +02:00
imx firmware/imx-dsp: Fix use_after_free in imx_dsp_setup_channels() 2023-10-10 10:30:29 +08:00
meson firmware: meson_sm: fix to avoid potential NULL pointer dereference 2023-08-04 15:19:01 +02:00
psci firmware/psci: demote suspend-mode warning to info level 2023-04-14 13:48:56 +02:00
smccc firmware: smccc: Fix use of uninitialised results structure 2023-07-18 10:08:05 +01:00
tegra firmware: tegra: Add suspend hook and reset BPMP IPC early on resume 2023-11-20 11:59:16 +01:00
xilinx Pin control bulk changes for the v6.6 kernel cycle: 2023-08-30 19:36:19 -07:00
Kconfig sound updates for 5.19-rc1 2022-05-25 16:55:16 -07:00
Makefile Follow-up tweaks for the EFI changes in v5.19 2022-06-03 13:39:30 -07:00
arm_scpi.c firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails 2022-07-04 14:28:42 +01:00
arm_sdei.c arm64: sdei: abort running SDEI handlers during crash 2023-08-04 17:35:33 +01:00
dmi-id.c driver core: make struct class.dev_uevent() take a const * 2022-11-24 17:12:15 +01:00
dmi-sysfs.c firmware: dmi-sysfs: handle HAS_IOPORT=n 2023-05-31 19:17:29 +01:00
dmi_scan.c firmware: dmi: Fortify entry point length checks 2022-09-23 14:53:14 +02:00
edd.c edd: make kobj_type structure constant 2023-03-09 18:07:33 +01:00
iscsi_ibft.c iscsi_ibft: Fix isa_bus_to_virt not working under ARM 2021-09-02 16:22:00 -04:00
iscsi_ibft_find.c iscsi_ibft: Fix finding the iBFT under Xen Dom 0 2023-06-26 07:47:11 +02:00
memmap.c firmware: memmap: use default_groups in kobj_type 2022-01-05 19:17:29 +01:00
mtk-adsp-ipc.c firmware: Explicitly include correct DT includes 2023-08-12 10:31:01 +02:00
pcdp.c
…
pcdp.h
…
qcom_scm-legacy.c firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/ 2023-02-08 19:15:16 -08:00
qcom_scm-smc.c firmware: qcom_scm: Move qcom_scm.h to include/linux/firmware/qcom/ 2023-02-08 19:15:16 -08:00
qcom_scm.c firmware: qcom_scm: use 64-bit calling convention only when client is 64-bit 2023-11-28 17:20:03 +00:00
qcom_scm.h firmware: qcom: scm: Add wait-queue handling logic 2023-01-18 21:14:40 -06:00
qemu_fw_cfg.c firmware: qemu_fw_cfg: remove sysfs entries explicitly 2022-01-14 18:50:52 -05:00
raspberrypi.c firmware: Explicitly include correct DT includes 2023-08-12 10:31:01 +02:00
scpi_pm_domain.c firmware: Explicitly include correct DT includes 2023-08-12 10:31:01 +02:00
stratix10-rsu.c Char/Misc driver changes for 6.6-rc1 2023-09-01 09:53:54 -07:00
stratix10-svc.c firmware: stratix10-svc: Generic Mailbox Command 2023-08-04 16:31:37 +02:00
sysfb.c Revert "drivers/firmware: Move sysfb_init() from device_initcall to subsys_initcall_sync" 2024-01-31 16:19:07 -08:00
sysfb_simplefb.c firmware/sysfb: Fix VESA format selection 2023-04-21 14:27:31 +02:00
ti_sci.c firmware: ti_sci: Fix an off-by-one in ti_sci_debugfs_create() 2024-01-25 15:35:20 -08:00
ti_sci.h
…
trusted_foundations.c
…
turris-mox-rwtm.c firmware: turris-mox-rwtm: make kobj_type structure constant 2023-04-07 17:17:00 +02:00