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linux/drivers/firmware
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D Scott Phillips 6aff273257 arm64: sdei: abort running SDEI handlers during crash 
commit 5cd474e573 upstream.

Interrupts are blocked in SDEI context, per the SDEI spec: "The client
interrupts cannot preempt the event handler." If we crashed in the SDEI
handler-running context (as with ACPI's AGDI) then we need to clean up the
SDEI state before proceeding to the crash kernel so that the crash kernel
can have working interrupts.

Track the active SDEI handler per-cpu so that we can COMPLETE_AND_RESUME
the handler, discarding the interrupted context.

Fixes: f5df269618 ("arm64: kernel: Add arch-specific SDEI entry code and CPU masking")
Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Cc: stable@vger.kernel.org
Reviewed-by: James Morse <james.morse@arm.com>
Tested-by: Mihai Carabas <mihai.carabas@oracle.com>
Link: https://lore.kernel.org/r/20230627002939.2758-1-scott@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2023-09-19 12:22:52 +02:00
..
arm_ffa firmware: arm_ffa: Set handle field to zero in memory descriptor 2023-06-14 11:13:08 +02:00
arm_scmi firmware: arm_scmi: Drop OF node reference in the transport channel setup 2023-08-11 15:13:56 +02:00
broadcom firmware: tee_bnxt: Release TEE shm, session, and context during kexec 2021-07-21 07:55:50 +02:00
efi x86/efistub: Fix PCI ROM preservation in mixed mode 2023-09-19 12:22:31 +02:00
google firmware: coreboot: framebuffer: Ignore reserved pixel color bits 2023-03-10 09:39:55 +01:00
imx firmware: imx: scu-pd: add missed ADC1 pd 2021-03-29 09:34:37 +08:00
meson firmware: meson_sm: fix to avoid potential NULL pointer dereference 2023-09-19 12:22:39 +02:00
psci firmware/psci: fix application of sizeof to pointer 2021-11-18 19:15:53 +01:00
smccc firmware: smccc: Fix check for ARCH_SOC_ID not implemented 2021-12-01 09:04:49 +01:00
tegra firmware: tegra: bpmp: Do only aligned access to IPC memory area 2022-09-05 10:30:03 +02:00
xilinx firmware: xilinx: don't make a sleepable memory allocation from an atomic context 2023-03-22 13:31:32 +01:00
arm_scpi.c firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails 2022-08-17 14:24:20 +02:00
arm_sdei.c arm64: sdei: abort running SDEI handlers during crash 2023-09-19 12:22:52 +02:00
dmi-id.c firmware: dmi: Move product_sku info to the end of the modalias 2021-09-02 17:28:53 +02:00
dmi-sysfs.c firmware: dmi-sysfs: Fix null-ptr-deref in dmi_sysfs_register_handle 2023-03-10 09:39:39 +01:00
dmi_scan.c ASoC: soc-core: fix DMI handling 2021-03-11 13:25:09 +00:00
edd.c edd: Use scnprintf() for avoiding potential buffer overflow 2020-04-02 20:42:29 +02:00
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 warning in reserve_ibft_region() 2021-08-05 19:47:57 -04:00
Kconfig ACPI: APEI: explicit init of HEST and GHES in apci_init() 2022-08-17 14:23:11 +02:00
Makefile ARM: SoC drivers for 5.15 2021-09-01 15:25:28 -07:00
memmap.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 287 2019-06-05 17:36:37 +02:00
pcdp.c efi/ia64: Move HCDP and MPS table handling into IA64 arch code 2020-02-23 21:59:42 +01:00
pcdp.h firmware: pcdp: Replace zero-length array with flexible-array 2020-06-15 23:08:32 -05:00
qcom_scm-legacy.c firmware: qcom_scm: Fix kernel-doc function names to match 2021-04-06 21:25:49 -05:00
qcom_scm-smc.c firmware: qcom_scm: Reduce locking section for __get_convention() 2021-04-06 21:25:23 -05:00
qcom_scm.c firmware: qcom_scm: Clear download bit during reboot 2023-05-11 23:00:22 +09:00
qcom_scm.h firmware: qcom_scm: Introduce SCM calls to access LMh 2021-08-18 09:31:53 +02:00
qemu_fw_cfg.c firmware: qemu_fw_cfg: fix kobject leak in probe error path 2022-01-20 09:13:15 +01:00
raspberrypi.c firmware: raspberrypi: fix possible memory leak in rpi_firmware_probe() 2022-12-31 13:14:29 +01:00
scpi_pm_domain.c firmware: arm_scpi: Fix string overflow in SCPI genpd driver 2021-12-22 09:32:35 +01:00
stratix10-rsu.c firmware: stratix10-rsu: fix warnings 2020-07-02 14:48:48 +02:00
stratix10-svc.c firmware: stratix10-svc: Fix an NULL vs IS_ERR() bug in probe 2023-09-06 21:28:39 +01:00
sysfb.c efi: sysfb_efi: Fix DMI quirks not working for simpledrm 2023-03-30 12:47:55 +02:00
sysfb_simplefb.c efi: sysfb_efi: Fix DMI quirks not working for simpledrm 2023-03-30 12:47:55 +02:00
ti_sci.c firmware: ti_sci: rm: Remove unused config() from ti_sci_rm_ringacc_ops 2020-11-01 19:38:04 -08:00
ti_sci.h firmware: ti_sci: rm: Add new ops for ring configuration 2020-11-01 19:38:02 -08:00
trusted_foundations.c firmware: tf: Different way of L2 cache enabling after LP2 suspend 2020-05-06 18:27:26 +02:00
turris-mox-rwtm.c mvebu drivers for 5.14 (part 1) 2021-06-23 18:57:40 -07:00