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| author | Ard Biesheuvel <ardb@kernel.org> | 2023-07-02 11:57:34 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2023-08-22 10:39:26 +0200 |
| commit | 5894cf571e14fb393a4d0a82538de032127b9d8b (patch) | |
| tree | 6dbdfaf1d23db2b428cc0c6a03d59f52764c9350 /include/linux/efi.h | |
| parent | 3c17ae4161093fa2263b70064e34a033dc16fef5 (diff) | |
| download | linux-5894cf571e14fb393a4d0a82538de032127b9d8b.tar.gz linux-5894cf571e14fb393a4d0a82538de032127b9d8b.tar.bz2 linux-5894cf571e14fb393a4d0a82538de032127b9d8b.zip | |
acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers
Instead of bypassing the kernel's adaptation layer for performing EFI
runtime calls, wire up ACPI PRM handling into it. This means these calls
can no longer occur concurrently with EFI runtime calls, and will be
made from the EFI runtime workqueue. It also means any page faults
occurring during PRM handling will be identified correctly as
originating in firmware code.
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index e0b346b014df..5a1e39df8b26 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -1228,6 +1228,10 @@ extern int efi_tpm_final_log_size; extern unsigned long rci2_table_phys; +efi_status_t +efi_call_acpi_prm_handler(efi_status_t (__efiapi *handler_addr)(u64, void *), + u64 param_buffer_addr, void *context); + /* * efi_runtime_service() function identifiers. * "NONE" is used by efi_recover_from_page_fault() to check if the page @@ -1247,6 +1251,7 @@ enum efi_rts_ids { EFI_RESET_SYSTEM, EFI_UPDATE_CAPSULE, EFI_QUERY_CAPSULE_CAPS, + EFI_ACPI_PRM_HANDLER, }; union efi_rts_args; |