Commit graph

17 commits

Author SHA1 Message Date
Alexander Graf
92bfc33db9 efi: Free malloc regions on exit
When we exit grub, we don't free all the memory that we allocated earlier
for our heap region. This can cause problems with setups where you try
to descend the boot order using "exit" entries, such as PXE -> HD boot
scenarios.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2017-09-07 23:35:01 +02:00
Leif Lindholm
f826330683 efi: change heap allocation type to GRUB_EFI_LOADER_CODE
With upcoming changes to EDK2, allocations of type EFI_LOADER_DATA may
not return regions with execute ability. Since modules are loaded onto
the heap, change the heap allocation type to GRUB_EFI_LOADER_CODE in
order to permit execution on systems with this feature enabled.

Closes: 50420

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-07 19:03:34 +02:00
Vladimir Serbinenko
4bc909bf89 Remove grub_efi_allocate_pages.
grub_efi_allocate_pages Essentially does 2 unrelated things:
* Allocate at fixed address.
* Allocate at any address.

To switch between 2 different functions it uses address == 0 as magic
value which is wrong as 0 is a perfectly valid fixed adress to allocate at.
2017-08-07 18:33:29 +02:00
Leif Lindholm
dd5fde2df8 efi: refactor grub_efi_allocate_pages
Expose a new function, grub_efi_allocate_pages_real(), making it possible
to specify allocation type and memory type as supported by the UEFI
AllocatePages boot service.

Make grub_efi_allocate_pages() a consumer of the new function,
maintaining its old functionality.

Also delete some left-around #if 1/#else blocks in the affected
functions.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
2017-08-07 18:23:39 +02:00
Vladimir Serbinenko
69aee43fa6 * grub-core/kern/efi/mm.c (grub_efi_get_memory_map): Never return a
descriptor_size==0 to avoid potential divisions by zero.
2015-01-21 17:42:15 +01:00
Leif Lindholm
16c8f78513 efi: mm: make MAX_USABLE_ADDRESS platform-specific 2013-12-10 18:05:29 +00:00
Vladimir Serbinenko
189090cee9 * grub-core/kern/efi/mm.c: Limit allocations to 2GiB when not compiling
with -mcmodel=large.
2013-11-22 13:03:19 +01:00
Vladimir Serbinenko
a8f15bceea * grub-core/kern/misc.c (grub_abort): Make static 2013-10-27 14:13:39 +01:00
Vladimir 'phcoder' Serbinenko
e75fdee420 * grub-core/kern/efi/mm.c (grub_efi_finish_boot_services):
Try terminating EFI services several times due to quirks in some
	implementations.
2013-03-26 11:34:56 +01:00
Colin Watson
ca3a74469a Remove nested functions from PCI iterators.
* grub-core/bus/pci.c (grub_pci_iterate): Add hook_data argument,
passed to hook.  Update all callers to pass appropriate hook data.
* grub-core/bus/emu/pci.c (grub_pci_iterate): Likewise.
* include/grub/pci.h (grub_pci_iteratefunc_t): Add data argument.
Remove NESTED_FUNC_ATTR from here and from all users.
(grub_pci_iterate): Update prototype.
* grub-core/bus/cs5536.c (grub_cs5536_find: hook): Make static
instead of nested.  Rename to ...
(grub_cs5536_find_iter): ... this.
* grub-core/kern/efi/mm.c (stop_broadcom: find_card): Likewise.
* grub-core/kern/mips/loongson/init.c (init_pci: set_card):
Likewise.
* grub-core/kern/vga_init.c (grub_qemu_init_cirrus: find_card):
Likewise.
* grub-core/video/bochs.c (grub_video_bochs_setup: find_card):
Likewise.
* grub-core/video/cirrus.c (grub_video_cirrus_setup: find_card):
Likewise.
* grub-core/video/efi_uga.c (find_framebuf: find_card): Likewise.
* grub-core/video/radeon_fuloong2e.c
(grub_video_radeon_fuloong2e_setup: find_card): Likewise.
* grub-core/video/sis315pro.c (grub_video_sis315pro_setup:
find_card): Likewise.
* grub-core/video/sm712.c (grub_video_sm712_setup: find_card):
Likewise.
2013-01-13 01:10:41 +00:00
Matthew Garrett
9d34bb85da Suspend broadcom cards in order to stop their DMA.
* grub-core/Makefile.am (KERNEL_HEADER_FILES): Add pci.h on x86 EFI.
	* grub-core/Makefile.core.def (kernel): Add pci.c on x86 EFI.
	(pci): Don't build on x86 EFI.
	* grub-core/bus/pci.c (grub_pci_find_capability): New function.
	* grub-core/kern/efi/mm.c (stop_broadcom) [__i386__ || __x86_64__]:
	New function.
	(grub_efi_finish_boot_services) [__i386__ || __x86_64__]: Call
	stop_broadcom if running on EFI.
	* include/grub/pci.h (GRUB_PCI_CLASS_NETWORK): New enum value.
	(GRUB_PCI_CAP_POWER_MANAGEMENT): Likewise.
	(GRUB_PCI_VENDOR_BROADCOM): Likewise.
	(grub_pci_find_capability): New proto.

	Also-By: Vladimir Serbinenko <phcoder@gmail.com>
2012-05-03 17:26:55 +02:00
Vladimir 'phcoder' Serbinenko
ae67942e78 Don't use post-4G memory on EFI even if 64-bit since some non-compliant
implementations bug on them.

	* grub-core/kern/efi/mm.c (grub_efi_allocate_pages): Skip post-4G
	memory.
	(filter_memory_map): Likewise.
2011-01-10 23:51:10 +01:00
Vladimir 'phcoder' Serbinenko
fbfbeb394f Remove dead grub_efi_mm_fini.
* grub-core/kern/efi/mm.c (allocated_page): Removed.
	(ALLOCATED_PAGES_SIZE): Likewise.
	(MAX_ALLOCATED_PAGES): Likewise.
	(allocated_pages): Likewise.
	(grub_efi_allocate_pages): Don't record allocated pages.
	(grub_efi_free_pages): Likewise.
	(grub_efi_mm_init): Likewise.
	(grub_efi_mm_fini): Removed.
2010-10-16 17:50:48 +02:00
Vladimir 'phcoder' Serbinenko
65f7ed7c9a * grub-core/kern/efi/mm.c (BYTES_TO_PAGES): Round up instead of down.
(grub_efi_mm_init): Take into account the memory map size increase.
2010-10-16 17:44:35 +02:00
Vladimir 'phcoder' Serbinenko
16bd6cfab2 Merge mainline into newreloc. For now without boot tests 2010-08-25 03:25:18 +02:00
BVK Chaitanya
297f0c2b6e merge with mainline 2010-07-13 00:43:28 +05:30
BVK Chaitanya
8c41176882 automake commit without merge history 2010-05-06 11:34:04 +05:30
Renamed from kern/efi/mm.c (Browse further)