[PATCH] efi_loader: round the memory area in efi_add_memory_map()
Heinrich Schuchardt
xypron.glpk at gmx.de
Sun May 17 07:44:26 CEST 2020
On 5/16/20 6:56 PM, Michael Walle wrote:
> Virtually all callers of this function do the rounding on their own.
> Some do it right, some don't. Instead of doing this in each caller,
> do the rounding in efi_add_memory_map(). Change the size parameter
> to bytes instead of pages and remove aligning and size calculation in
> all callers.
>
> There is no more need to make the original efi_add_memory_map() (which
> takes pages as size) available outside the module. Thus rename it to
> efi_add_memory_map_pg() and make it static to prevent further misuse
> outside the module.
>
> Signed-off-by: Michael Walle <michael at walle.cc>
> ---
>
> I split off this patch of the following series because it touches
> many files:
> https://lists.denx.de/pipermail/u-boot/2020-May/412065.html
>
> This patch supersede patch 2 and patch 3 of said series.
>
> arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 10 ++---
> arch/arm/cpu/armv8/fsl-layerscape/fdt.c | 5 +--
> arch/arm/mach-meson/board-common.c | 7 +---
> arch/x86/lib/e820.c | 6 +--
> board/raspberrypi/rpi/rpi.c | 2 +-
> cmd/bootefi.c | 8 +---
> drivers/video/meson/meson_vpu.c | 4 +-
> drivers/video/sunxi/sunxi_de2.c | 6 +--
> drivers/video/sunxi/sunxi_display.c | 6 +--
> include/efi_loader.h | 3 +-
> lib/efi_loader/efi_memory.c | 54 ++++++++++++++++++-------
> lib/efi_loader/efi_runtime.c | 3 +-
> 12 files changed, 61 insertions(+), 53 deletions(-)
>
> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
> index b3f5c2f641..2cf3f4bb98 100644
> --- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
> +++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
> @@ -1529,9 +1529,8 @@ int dram_init_banksize(void)
> void efi_add_known_memory(void)
> {
> int i;
> - phys_addr_t ram_start, start;
> + phys_addr_t ram_start;
> phys_size_t ram_size;
> - u64 pages;
>
> /* Add RAM */
> for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
> @@ -1549,11 +1548,8 @@ void efi_add_known_memory(void)
> gd->arch.resv_ram < ram_start + ram_size)
> ram_size = gd->arch.resv_ram - ram_start;
> #endif
> - start = (ram_start + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;
> - pages = (ram_size + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
> -
> - efi_add_memory_map(start, pages, EFI_CONVENTIONAL_MEMORY,
> - false);
> + efi_add_memory_map(ram_start, ram_size,
> + EFI_CONVENTIONAL_MEMORY);
> }
> }
> #endif
> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
> index 3bbad827cb..0696ea6d35 100644
> --- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
> +++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
> @@ -146,9 +146,8 @@ remove_psci_node:
> fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
> *boot_code_size);
> #if CONFIG_IS_ENABLED(EFI_LOADER)
> - efi_add_memory_map((uintptr_t)&secondary_boot_code,
> - ALIGN(*boot_code_size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
> - EFI_RESERVED_MEMORY_TYPE, false);
> + efi_add_memory_map((uintptr_t)&secondary_boot_code, *boot_code_size,
> + EFI_RESERVED_MEMORY_TYPE);
> #endif
> }
> #endif
> diff --git a/arch/arm/mach-meson/board-common.c b/arch/arm/mach-meson/board-common.c
> index bc4c92074c..747791b10e 100644
> --- a/arch/arm/mach-meson/board-common.c
> +++ b/arch/arm/mach-meson/board-common.c
> @@ -69,11 +69,8 @@ void meson_board_add_reserved_memory(void *fdt, u64 start, u64 size)
> if (ret)
> printf("Could not reserve zone @ 0x%llx\n", start);
>
> - if (IS_ENABLED(CONFIG_EFI_LOADER)) {
> - efi_add_memory_map(start,
> - ALIGN(size, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
> - EFI_RESERVED_MEMORY_TYPE, false);
> - }
> + if (IS_ENABLED(CONFIG_EFI_LOADER))
> + efi_add_memory_map(start, size, EFI_RESERVED_MEMORY_TYPE);
> }
>
> int meson_generate_serial_ethaddr(void)
> diff --git a/arch/x86/lib/e820.c b/arch/x86/lib/e820.c
> index 26da4d2f27..1f20c5c8c6 100644
> --- a/arch/x86/lib/e820.c
> +++ b/arch/x86/lib/e820.c
> @@ -41,7 +41,7 @@ void efi_add_known_memory(void)
> {
> struct e820_entry e820[E820MAX];
> unsigned int i, num;
> - u64 start, pages, ram_top;
> + u64 start, ram_top;
> int type;
>
> num = install_e820_map(ARRAY_SIZE(e820), e820);
> @@ -77,9 +77,7 @@ void efi_add_known_memory(void)
> start + e820[i].size,
> ram_top);
> } else {
> - pages = ALIGN(e820[i].size, EFI_PAGE_SIZE)
> - >> EFI_PAGE_SHIFT;
> - efi_add_memory_map(start, pages, type, false);
> + efi_add_memory_map(start, e820[i].size, type);
> }
> }
> }
> diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
> index e367ba3092..80f79a4866 100644
> --- a/board/raspberrypi/rpi/rpi.c
> +++ b/board/raspberrypi/rpi/rpi.c
> @@ -489,7 +489,7 @@ int ft_board_setup(void *blob, bd_t *bd)
>
> #ifdef CONFIG_EFI_LOADER
> /* Reserve the spin table */
> - efi_add_memory_map(0, 1, EFI_RESERVED_MEMORY_TYPE, 0);
> + efi_add_memory_map(0, EFI_PAGE_SIZE, EFI_RESERVED_MEMORY_TYPE);
Thank you for the patch. Somehow it is not based on current origin/master:
error: patch failed: board/raspberrypi/rpi/rpi.c:489
error: board/raspberrypi/rpi/rpi.c: patch does not apply
Patch failed at 0001 efi_loader: round the memory area in
efi_add_memory_map()
See commit c6badda85c6f ("rpi: Kconfig option for initial page
reservation") merged recently.
Probably:
- efi_add_memory_map(0, CONFIG_RPI_EFI_NR_SPIN_PAGES,
- EFI_RESERVED_MEMORY_TYPE, 0);
+ efi_add_memory_map(0, CONFIG_RPI_EFI_NR_SPIN_PAGES <<
EFI_PAGE_SHIFT,
+ EFI_RESERVED_MEMORY_TYPE);
> #endif
>
> return 0;
> diff --git a/cmd/bootefi.c b/cmd/bootefi.c
> index 06573b14e9..9849eb4f99 100644
> --- a/cmd/bootefi.c
> +++ b/cmd/bootefi.c
> @@ -151,14 +151,10 @@ done:
>
> static void efi_reserve_memory(u64 addr, u64 size)
> {
> - u64 pages;
> -
> /* Convert from sandbox address space. */
> addr = (uintptr_t)map_sysmem(addr, 0);
> - pages = efi_size_in_pages(size + (addr & EFI_PAGE_MASK));
> - addr &= ~EFI_PAGE_MASK;
> - if (efi_add_memory_map(addr, pages, EFI_RESERVED_MEMORY_TYPE,
> - false) != EFI_SUCCESS)
> + if (efi_add_memory_map(addr, size,
> + EFI_RESERVED_MEMORY_TYPE) != EFI_SUCCESS)
> printf("Reserved memory mapping failed addr %llx size %llx\n",
> addr, size);
> }
> diff --git a/drivers/video/meson/meson_vpu.c b/drivers/video/meson/meson_vpu.c
> index aa8c0a962f..ed47192bf6 100644
> --- a/drivers/video/meson/meson_vpu.c
> +++ b/drivers/video/meson/meson_vpu.c
> @@ -195,8 +195,8 @@ void meson_vpu_rsv_fb(void *fdt)
> return;
>
> #if defined(CONFIG_EFI_LOADER)
> - efi_add_memory_map(meson_fb.base, meson_fb.fb_size >> EFI_PAGE_SHIFT,
> - EFI_RESERVED_MEMORY_TYPE, false);
> + efi_add_memory_map(meson_fb.base, meson_fb.fb_size,
> + EFI_RESERVED_MEMORY_TYPE);
> #endif
> #if defined(CONFIG_VIDEO_DT_SIMPLEFB)
> meson_vpu_setup_simplefb(fdt);
> diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c
> index 8333ddc44c..c6e7a35338 100644
> --- a/drivers/video/sunxi/sunxi_de2.c
> +++ b/drivers/video/sunxi/sunxi_de2.c
> @@ -224,9 +224,9 @@ static int sunxi_de2_init(struct udevice *dev, ulong fbbase,
>
> #ifdef CONFIG_EFI_LOADER
> efi_add_memory_map(fbbase,
> - ALIGN(timing.hactive.typ * timing.vactive.typ *
> - (1 << l2bpp) / 8, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
> - EFI_RESERVED_MEMORY_TYPE, false);
> + timing.hactive.typ * timing.vactive.typ *
> + (1 << l2bpp) / 8,
> + EFI_RESERVED_MEMORY_TYPE);
> #endif
>
> return 0;
> diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c
> index 40ee009f62..bfa486e7e2 100644
> --- a/drivers/video/sunxi/sunxi_display.c
> +++ b/drivers/video/sunxi/sunxi_display.c
> @@ -1196,10 +1196,8 @@ void *video_hw_init(void)
> sunxi_engines_init();
>
> #ifdef CONFIG_EFI_LOADER
> - efi_add_memory_map(gd->fb_base,
> - ALIGN(sunxi_display.fb_size, EFI_PAGE_SIZE) >>
> - EFI_PAGE_SHIFT,
> - EFI_RESERVED_MEMORY_TYPE, false);
> + efi_add_memory_map(gd->fb_base, sunxi_display.fb_size
> + EFI_RESERVED_MEMORY_TYPE);
> #endif
>
> fb_dma_addr = gd->fb_base - CONFIG_SYS_SDRAM_BASE;
> diff --git a/include/efi_loader.h b/include/efi_loader.h
> index 0e924ad109..75c20e4679 100644
> --- a/include/efi_loader.h
> +++ b/include/efi_loader.h
> @@ -545,8 +545,7 @@ efi_status_t efi_get_memory_map(efi_uintn_t *memory_map_size,
> efi_uintn_t *descriptor_size,
> uint32_t *descriptor_version);
> /* Adds a range into the EFI memory map */
> -efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
> - bool overlap_only_ram);
> +efi_status_t efi_add_memory_map(u64 start, u64 size, int memory_type);
> /* Adds a conventional range into the EFI memory map */
> efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
> u64 ram_top);
> diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c
> index 97d90f069a..f18692fab4 100644
> --- a/lib/efi_loader/efi_memory.c
> +++ b/lib/efi_loader/efi_memory.c
> @@ -229,7 +229,7 @@ static s64 efi_mem_carve_out(struct efi_mem_list *map,
> }
>
> /**
> - * efi_add_memory_map() - add memory area to the memory map
> + * efi_add_memory_map_pg() - add pages to the memory map
> *
> * @start: start address, must be a multiple of EFI_PAGE_SIZE
> * @pages: number of pages to add
> @@ -237,8 +237,9 @@ static s64 efi_mem_carve_out(struct efi_mem_list *map,
> * @overlap_only_ram: the memory area must overlap existing
> * Return: status code
> */
> -efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
> - bool overlap_only_ram)
> +static efi_status_t efi_add_memory_map_pg(u64 start, u64 pages,
> + int memory_type,
> + bool overlap_only_ram)
> {
> struct list_head *lhandle;
> struct efi_mem_list *newlist;
> @@ -343,6 +344,28 @@ efi_status_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
> return EFI_SUCCESS;
> }
>
> +/**
> + * efi_add_memory_map() - add memory area to the memory map
> + *
> + * @start: start address of the memory area
> + * @size: length in bytes of the memory area
> + * @memory_type: type of memory added
> + *
> + * Return: status code
> + *
> + * This function automatically align the start and size of the memory area
%s/align the/aligns the/
Otherwise looks fine.
Best regards
Heinrich
> + * to EFI_PAGE_SIZE.
> + */
> +efi_status_t efi_add_memory_map(u64 start, u64 size, int memory_type)
> +{
> + u64 pages;
> +
> + pages = efi_size_in_pages(size + (start & EFI_PAGE_MASK));
> + start &= ~EFI_PAGE_MASK;
> +
> + return efi_add_memory_map_pg(start, pages, memory_type, false);
> +}
> +
> /**
> * efi_check_allocated() - validate address to be freed
> *
> @@ -469,7 +492,8 @@ efi_status_t efi_allocate_pages(int type, int memory_type,
> }
>
> /* Reserve that map in our memory maps */
> - if (efi_add_memory_map(addr, pages, memory_type, true) != EFI_SUCCESS)
> + ret = efi_add_memory_map_pg(addr, pages, memory_type, true);
> + if (ret != EFI_SUCCESS)
> /* Map would overlap, bail out */
> return EFI_OUT_OF_RESOURCES;
>
> @@ -514,7 +538,8 @@ efi_status_t efi_free_pages(uint64_t memory, efi_uintn_t pages)
> return EFI_INVALID_PARAMETER;
> }
>
> - ret = efi_add_memory_map(memory, pages, EFI_CONVENTIONAL_MEMORY, false);
> + ret = efi_add_memory_map_pg(memory, pages, EFI_CONVENTIONAL_MEMORY,
> + false);
> /* Merging of adjacent free regions is missing */
>
> if (ret != EFI_SUCCESS)
> @@ -680,8 +705,8 @@ efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
>
> pages = (ram_end - ram_start) >> EFI_PAGE_SHIFT;
>
> - efi_add_memory_map(ram_start, pages,
> - EFI_CONVENTIONAL_MEMORY, false);
> + efi_add_memory_map_pg(ram_start, pages,
> + EFI_CONVENTIONAL_MEMORY, false);
>
> /*
> * Boards may indicate to the U-Boot memory core that they
> @@ -691,14 +716,14 @@ efi_status_t efi_add_conventional_memory_map(u64 ram_start, u64 ram_end,
> */
> if (ram_top < ram_start) {
> /* ram_top is before this region, reserve all */
> - efi_add_memory_map(ram_start, pages,
> - EFI_BOOT_SERVICES_DATA, true);
> + efi_add_memory_map_pg(ram_start, pages,
> + EFI_BOOT_SERVICES_DATA, true);
> } else if ((ram_top >= ram_start) && (ram_top < ram_end)) {
> /* ram_top is inside this region, reserve parts */
> pages = (ram_end - ram_top) >> EFI_PAGE_SHIFT;
>
> - efi_add_memory_map(ram_top, pages,
> - EFI_BOOT_SERVICES_DATA, true);
> + efi_add_memory_map_pg(ram_top, pages,
> + EFI_BOOT_SERVICES_DATA, true);
> }
>
> return EFI_SUCCESS;
> @@ -743,7 +768,8 @@ static void add_u_boot_and_runtime(void)
> uboot_stack_size) & ~EFI_PAGE_MASK;
> uboot_pages = ((uintptr_t)map_sysmem(gd->ram_top - 1, 0) -
> uboot_start + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
> - efi_add_memory_map(uboot_start, uboot_pages, EFI_LOADER_DATA, false);
> + efi_add_memory_map_pg(uboot_start, uboot_pages, EFI_LOADER_DATA,
> + false);
>
> #if defined(__aarch64__)
> /*
> @@ -762,8 +788,8 @@ static void add_u_boot_and_runtime(void)
> runtime_end = (ulong)&__efi_runtime_stop;
> runtime_end = (runtime_end + runtime_mask) & ~runtime_mask;
> runtime_pages = (runtime_end - runtime_start) >> EFI_PAGE_SHIFT;
> - efi_add_memory_map(runtime_start, runtime_pages,
> - EFI_RUNTIME_SERVICES_CODE, false);
> + efi_add_memory_map_pg(runtime_start, runtime_pages,
> + EFI_RUNTIME_SERVICES_CODE, false);
> }
>
> int efi_memory_init(void)
> diff --git a/lib/efi_loader/efi_runtime.c b/lib/efi_loader/efi_runtime.c
> index 6a25acbbcd..a28b291927 100644
> --- a/lib/efi_loader/efi_runtime.c
> +++ b/lib/efi_loader/efi_runtime.c
> @@ -784,11 +784,10 @@ out:
> efi_status_t efi_add_runtime_mmio(void *mmio_ptr, u64 len)
> {
> struct efi_runtime_mmio_list *newmmio;
> - u64 pages = (len + EFI_PAGE_MASK) >> EFI_PAGE_SHIFT;
> uint64_t addr = *(uintptr_t *)mmio_ptr;
> efi_status_t ret;
>
> - ret = efi_add_memory_map(addr, pages, EFI_MMAP_IO, false);
> + ret = efi_add_memory_map(addr, len, EFI_MMAP_IO);
> if (ret != EFI_SUCCESS)
> return EFI_OUT_OF_RESOURCES;
>
>
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