Dave Young 2ecb7402cf efi/x86: Do not clean dummy variable in kexec path ... kexec reboot fails randomly in UEFI based KVM guest. The firmware just resets while calling efi_delete_dummy_variable(); Unfortunately I don't know how to debug the firmware, it is also possible a potential problem on real hardware as well although nobody reproduced it. The intention of the efi_delete_dummy_variable is to trigger garbage collection when entering virtual mode. But SetVirtualAddressMap can only run once for each physical reboot, thus kexec_enter_virtual_mode() is not necessarily a good place to clean a dummy object. Drop the efi_delete_dummy_variable so that kexec reboot can work. Signed-off-by: Dave Young <dyoung@redhat.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Matthew Garrett <mjg59@google.com> Cc: Ben Dooks <ben.dooks@codethink.co.uk> Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Cc: Jerry Snitselaar <jsnitsel@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Lukas Wunner <lukas@wunner.de> Cc: Lyude Paul <lyude@redhat.com> Cc: Octavian Purdila <octavian.purdila@intel.com> Cc: Peter Jones <pjones@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Scott Talbert <swt@techie.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Cc: linux-integrity@vger.kernel.org Link: https://lkml.kernel.org/r/20191002165904.8819-8-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>		2019-10-07 15:24:36 +02:00
..
efi_32.c	x86/efi: Load fixmap GDT in efi_call_phys_epilog() before setting %cr3	2018-09-12 21:53:34 +02:00
efi_64.c	efi/x86/Add missing error handling to old_memmap 1:1 mapping code	2019-05-25 13:48:17 +02:00
efi_stub_32.S	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
efi_stub_64.S	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
efi_thunk_64.S	x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3	2018-03-12 11:05:05 +01:00
efi.c	efi/x86: Do not clean dummy variable in kexec path	2019-10-07 15:24:36 +02:00
Makefile	efi/x86: Convert x86 EFI earlyprintk into generic earlycon implementation	2019-02-04 08:27:30 +01:00
quirks.c	x86/efi: fix a -Wtype-limits compilation warning	2019-06-21 17:52:23 +02:00