From patchwork Fri Jul 13 16:34:44 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [2/3] loader/ia64/linux: use central copy of grub_efi_find_mmap_size X-Patchwork-Submitter: Leif Lindholm X-Patchwork-Id: 141940 Message-Id: <20180713163445.29478-3-leif.lindholm@linaro.org> To: grub-devel@gnu.org Cc: Daniel Kiper Date: Fri, 13 Jul 2018 17:34:44 +0100 From: Leif Lindholm List-Id: The development of GNU GRUB Delete local copy of function to determine required buffer size for the UEFI memory map, use helper in kern/efi/mm.c. Signed-off-by: Leif Lindholm --- grub-core/loader/ia64/efi/linux.c | 46 ++------------------------------------- 1 file changed, 2 insertions(+), 44 deletions(-) -- 2.11.0 _______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel diff --git a/grub-core/loader/ia64/efi/linux.c b/grub-core/loader/ia64/efi/linux.c index 750330d45..96fce713a 100644 --- a/grub-core/loader/ia64/efi/linux.c +++ b/grub-core/loader/ia64/efi/linux.c @@ -133,48 +133,6 @@ query_fpswa (void) } } -/* Find the optimal number of pages for the memory map. Is it better to - move this code to efi/mm.c? */ -static grub_efi_uintn_t -find_mmap_size (void) -{ - static grub_efi_uintn_t mmap_size = 0; - - if (mmap_size != 0) - return mmap_size; - - mmap_size = (1 << 12); - while (1) - { - int ret; - grub_efi_memory_descriptor_t *mmap; - grub_efi_uintn_t desc_size; - - mmap = grub_malloc (mmap_size); - if (! mmap) - return 0; - - ret = grub_efi_get_memory_map (&mmap_size, mmap, 0, &desc_size, 0); - grub_free (mmap); - - if (ret < 0) - { - grub_error (GRUB_ERR_IO, "cannot get memory map"); - return 0; - } - else if (ret > 0) - break; - - mmap_size += (1 << 12); - } - - /* Increase the size a bit for safety, because GRUB allocates more on - later, and EFI itself may allocate more. */ - mmap_size += (1 << 12); - - return page_align (mmap_size); -} - static void free_pages (void) { @@ -212,7 +170,7 @@ allocate_pages (grub_uint64_t align, grub_uint64_t size_pages, size = size_pages << 12; - mmap_size = find_mmap_size (); + mmap_size = grub_efi_find_mmap_size (); if (!mmap_size) return 0; @@ -323,7 +281,7 @@ grub_linux_boot (void) /* MDT. Must be done after grub_machine_fini because map_key is used by exit_boot_services. */ - mmap_size = find_mmap_size (); + mmap_size = grub_efi_find_mmap_size (); if (! mmap_size) return grub_errno; mmap_buf = grub_efi_allocate_any_pages (page_align (mmap_size) >> 12);