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Fri, 28 Aug 2020 12:47:45 -0700 (PDT) Received: from localhost.localdomain ([176.59.41.134]) by smtp.gmail.com with ESMTPSA id t205sm71117lff.8.2020.08.28.12.47.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 28 Aug 2020 12:47:44 -0700 (PDT) From: Maxim Uvarov To: u-boot@lists.denx.de Cc: Maxim Uvarov Subject: [RFC PATCH 1/2] efi: arm: do not overlap non ram memory on efi allocation Date: Fri, 28 Aug 2020 22:47:40 +0300 Message-Id: <20200828194741.7497-1-maxim.uvarov@linaro.org> X-Mailer: git-send-email 2.17.1 X-Mailman-Approved-At: Fri, 28 Aug 2020 21:50:01 +0200 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.3 at phobos.denx.de X-Virus-Status: Clean This commit fixes qemu boot of armv7 where reserving memory for fdt is failed due to reserving region outside of the system RAM. => bdinfo boot_params = 0x00000000 DRAM bank = 0x00000000 -> start = 0x40000000 -> size = 0x40000000 memstart = 0x40000000 memsize = 0x40000000 flashstart = 0x04000000 flashsize = 0x04000000 flashoffset = 0x00000000 baudrate = 115200 bps relocaddr = 0x7ff57000 reloc off = 0x1ff57000 Build = 32-bit current eth = virtio-net#32 ethaddr = 52:52:52:52:52:52 IP addr = fdt_blob = 0x7ef35f20 new_fdt = 0x7ef35f20 fdt_size = 0x00001fa0 ERROR: reserving fdt memory region failed (addr=7fe00000 size=200000) lmb_dump_all: memory.cnt = 0x1 memory.size = 0x0 memory.reg[0x0].base = 0x40000000 .size = 0x40000000 reserved.cnt = 0x2 reserved.size = 0x0 reserved.reg[0x0].base = 0xe100000 .size = 0xf00000 reserved.reg[0x1].base = 0x7ef34d04 .size = 0x10cb2fc arch_number = 0x00000000 TLB addr = 0x7fff0000 irq_sp = 0x7ef35f10 sp start = 0x7ef35f00 Early malloc usage: 1fc / 400 => efidebug memmap Type Start End Attributes -- 2.17.1 ================ ================ ================ ========== RESERVED 000000000e100000-000000000f000000 WB <---- outside of RAM CONVENTIONAL 0000000040000000-0000000047f00000 WB ACPI RECLAIM MEM 0000000047f00000-0000000047f05000 WB CONVENTIONAL 0000000047f05000-000000007d475000 WB RESERVED 000000007d475000-000000007d477000 WB CONVENTIONAL 000000007d477000-000000007df17000 WB LOADER DATA 000000007df17000-000000007df18000 WB Signed-off-by: Maxim Uvarov --- I'm really not sure that this is correct way to fix. Current code state is that uboot fails to boot kernel on armv7 if memory was reserved at 0xe100000. I.e. in current code it does not work. Qemu target has memory started at 0x40000000 and this chunk is outside that memory. Flag overlap_only_ram had very confusing naming, I corrected it in separate path. This patch fixes booting with removing region from efi memmap. I send this as RFC for now. BR, Maxim. lib/efi_loader/efi_memory.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 7be756e370..637c6c67ed 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -360,11 +360,15 @@ static efi_status_t efi_add_memory_map_pg(u64 start, u64 pages, efi_status_t efi_add_memory_map(u64 start, u64 size, int memory_type) { u64 pages; + bool overlap_only_ram = false; 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); +#if defined(CONFIG_ARM) + overlap_only_ram = true; +#endif + return efi_add_memory_map_pg(start, pages, memory_type, + overlap_only_ram); } /** From patchwork Fri Aug 28 19:47:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Maxim Uvarov X-Patchwork-Id: 248661 Delivered-To: patch@linaro.org Received: by 2002:a92:5b9c:0:0:0:0:0 with SMTP id c28csp1371290ilg; Fri, 28 Aug 2020 12:50:30 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyJ1WEPAhCo0KtyKpaiSmyE31qa72gHphDDK8RoRb6rOgUfoRUfhqAPJ4QS129hwM1hl6gi X-Received: by 2002:a05:6402:1c1d:: with SMTP id ck29mr394437edb.4.1598644230621; Fri, 28 Aug 2020 12:50:30 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1598644230; cv=none; d=google.com; s=arc-20160816; b=r2hQt4OPo8fJFZwycRUzrg2xnanGWmn39aLxkZe/LRd5lIeQfkmkFzLMRUNJq5LHTd BS8EzL3vDyPn2vL9PoyEpMBpQzQvPc9G/o5pcnOs+y3+zyhN5DvaFiatNUc6SUcca6iW 01A3dkEfbEiVXhnw+ec3mv7bAm+JWuyZgvp1QGZGcQ0h4+C/xHwoKIr1OMLBpGhMm+Ms 4vGgma1Y1xDwt7+lAoUpiBmRE6CfwhvLYlVS5Fq8xxUW/ytoLnXxrdqV0ljeBjVmKu3w 6oAjRx1YSXBkPmC4txQVaeRk28VvtTNypVHXsgnTjg8XOSoGFYbsldnnMu9O0mEXM26r mK7A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=P7LHTg93PM7EjsoOKz/Cg7OVl1rJBm49qDPTNLy2jLc=; b=m4u9Laoq2Yg50rZnBBBP48jia7d5Exexi3E3b2ILpZymnMfTgRezaTpD0HVX9p6Xt8 axNZlXXv6SAW9Vxzi3kW59bJXYqXHV9tuUYX1b0w8tgusduARj2BiX/6Pqct70xViOHf ljl8AHf2yhswzJrX5QPLxfr6srqZSD4YSu1foNXh8S2YpeElSrUuCa+sVlyrcwNvsbdn IrrD2XO1x2QY9jvSAjv+VTafK4xGl8xEywbRfs6PCwGEUqfiBkMS5BNYC4pKQX/J7Vua FYCQvhYgaubUD1i+TA4a7hkj7dq+4B0Y5cfaqZwo6wrHLp/pkQmjLwN5zdSrCgiTHtbB jugg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=MzCBaYdj; spf=pass (google.com: domain of u-boot-bounces@lists.denx.de designates 2a01:238:438b:c500:173d:9f52:ddab:ee01 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from phobos.denx.de (phobos.denx.de. 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Signed-off-by: Maxim Uvarov --- lib/efi_loader/efi_memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.17.1 Reviewed-by: Heinrich Schuchardt diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index 637c6c67ed..6dbe9ba756 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -235,7 +235,7 @@ static s64 efi_mem_carve_out(struct efi_mem_list *map, * @start: start address, must be a multiple of EFI_PAGE_SIZE * @pages: number of pages to add * @memory_type: type of memory added - * @overlap_only_ram: the memory area must overlap existing + * @overlap_only_ram: region may only overlap RAM * Return: status code */ static efi_status_t efi_add_memory_map_pg(u64 start, u64 pages,