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| author | Dan Williams <dan.j.williams@intel.com> | 2019-03-11 12:37:55 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-03-11 12:37:55 -0700 |
| commit | 4083014e32699af04a8e6eaa4855b08dba36a47a (patch) | |
| tree | fa37f9f9691fe64ca8a3c0cdc0315dc12462e6e4 /arch/x86/kernel/kexec-bzimage64.c | |
| parent | 6fd96ff557963de8e62842a0dc360a6e3610d2bb (diff) | |
| parent | 78153dd45e7e0596ba32b15d02bda08e1513111e (diff) | |
| download | linux-4083014e32699af04a8e6eaa4855b08dba36a47a.tar.bz2 | |
Merge branch 'for-5.1/nfit/ars' into libnvdimm-for-next
Merge several updates to the ARS implementation. Highlights include:
* Support retrieval of short-ARS results if the ARS state is "requires
continuation", and even if the "no_init_ars" module parameter is
specified.
* Allow busy-polling of the kernel ARS state by allowing root to reset
the exponential back-off timer.
* Filter potentially stale ARS results by tracking query-ARS relative to
the previous start-ARS.
Diffstat (limited to 'arch/x86/kernel/kexec-bzimage64.c')
| -rw-r--r-- | arch/x86/kernel/kexec-bzimage64.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c index 0d5efa34f359..53917a3ebf94 100644 --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -167,6 +167,9 @@ setup_efi_state(struct boot_params *params, unsigned long params_load_addr, struct efi_info *current_ei = &boot_params.efi_info; struct efi_info *ei = ¶ms->efi_info; + if (!efi_enabled(EFI_RUNTIME_SERVICES)) + return 0; + if (!current_ei->efi_memmap_size) return 0; |