From patchwork Wed Feb 28 15:04:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Jones X-Patchwork-Id: 13575685 Received: from out-171.mta0.migadu.com (out-171.mta0.migadu.com [91.218.175.171]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E31DB15B96A for ; Wed, 28 Feb 2024 15:04:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.171 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709132696; cv=none; b=BRFdynsLTuVev4aa3ZuEHIHnuN8b7Cutq/Ky0SXa++CmVdFQLRCWnWprNtaRwhTdew9EJIkLlyQqbvjlqP0WgXIdqcifKsptr1vHKcvuc6CtHkg/z4UjE93a3lxrFGfNKf+SrR6yMx+Hb+SVO5sdhjm9CHqz9Y9DxKNcNQFxXfQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709132696; c=relaxed/simple; bh=M7l9WcQjRCRPIaALDcYvRNDAhGrswB9B7HMxRw2YrXw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-type; b=QuM2u0LyYFO4rla2zhMjsrhHOpQJLPP+X79zhtWtTwjrW87YgtRks6+FqRrCvRZX4BAV1cHwcBlXA9Tq2JwTLOt73+xKhSCmxwt0USWOVMvwBOp5MzqcDD5Fn705djwroiyA1vDNKyRZcNbksGfCYOLQAz8bQAzhvuMJaium3d8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=JuilRahO; arc=none smtp.client-ip=91.218.175.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="JuilRahO" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1709132693; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Haw5zmzBY2q3Vdx4wPZtDT0E5FiekDAKsYYwrB1PwwM=; b=JuilRahOR7Rql+r3UbXYCCynjvxKD48tqQfj/f9EPGp6aK7WcrG9NLCl/nkuB36rROrVxh HBqt/R50F8D4KQeD00by9l412w7lCPkoVXN6V47MBnnInoy0OWqVlg4amQCuyZTaZ0EJwr z9/89ZdVOHg6ULOv8kLb2sQ5f7sObaE= From: Andrew Jones To: kvm@vger.kernel.org, kvm-riscv@lists.infradead.org Cc: pbonzini@redhat.com, thuth@redhat.com Subject: [kvm-unit-tests PATCH 11/13] riscv: Enable EFI boot Date: Wed, 28 Feb 2024 16:04:27 +0100 Message-ID: <20240228150416.248948-26-andrew.jones@linux.dev> In-Reply-To: <20240228150416.248948-15-andrew.jones@linux.dev> References: <20240228150416.248948-15-andrew.jones@linux.dev> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-type: text/plain X-Migadu-Flow: FLOW_OUT Mimicking Arm's setup_efi() and duplicating some code from riscv's setup(), add the EFI setup code needed to boot unit tests from EFI- capable bootloaders. The selftest unit test can now be run with qemu-system-riscv64 \ -nodefaults -nographic -serial mon:stdio \ -accel tcg -cpu max \ -machine virt,pflash0=pflash0 \ -blockdev node-name=pflash0,driver=file,read-only=on,filename=RISCV_VIRT_CODE.fd \ -smp 16 \ -kernel riscv/selftest.efi \ -initrd test-env \ -append 'selftest.efi foo bar baz' \ -machine acpi=off where test-env has the environment variables $ cat test-env FOO=foo BAR=bar BAZ=baz Signed-off-by: Andrew Jones --- lib/riscv/asm/setup.h | 2 +- lib/riscv/setup.c | 63 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 64 insertions(+), 1 deletion(-) diff --git a/lib/riscv/asm/setup.h b/lib/riscv/asm/setup.h index dfc8875fbb3b..7f81a705ca4f 100644 --- a/lib/riscv/asm/setup.h +++ b/lib/riscv/asm/setup.h @@ -14,7 +14,7 @@ void setup(const void *fdt, phys_addr_t freemem_start); #ifdef CONFIG_EFI #include -static inline efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo) { return 0; } +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo); #endif #endif /* _ASMRISCV_SETUP_H_ */ diff --git a/lib/riscv/setup.c b/lib/riscv/setup.c index f721d81192ac..7c681ea3a13c 100644 --- a/lib/riscv/setup.c +++ b/lib/riscv/setup.c @@ -213,3 +213,66 @@ void setup(const void *fdt, phys_addr_t freemem_start) banner(); } + +#ifdef CONFIG_EFI +#include + +extern unsigned long exception_vectors; +extern unsigned long boot_hartid; + +static efi_status_t efi_mem_init(efi_bootinfo_t *efi_bootinfo) +{ + struct mem_region *freemem_mr = NULL, *code, *data; + void *freemem; + + memregions_init(riscv_mem_regions, NR_MEM_REGIONS); + + memregions_efi_init(&efi_bootinfo->mem_map, &freemem_mr); + if (!freemem_mr) + return EFI_OUT_OF_RESOURCES; + + memregions_split((unsigned long)&_etext, &code, &data); + assert(code && (code->flags & MR_F_CODE)); + if (data) + data->flags &= ~MR_F_CODE; + + for (struct mem_region *m = mem_regions; m->end; ++m) + assert(m == code || !(m->flags & MR_F_CODE)); + + freemem = (void *)PAGE_ALIGN(freemem_mr->start); + + if (efi_bootinfo->fdt_valid) + freemem_push_fdt(&freemem, efi_bootinfo->fdt); + + mmu_disable(); + mem_allocator_init((unsigned long)freemem, freemem_mr->end); + + return EFI_SUCCESS; +} + +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo) +{ + efi_status_t status; + + csr_write(CSR_STVEC, (unsigned long)&exception_vectors); + csr_write(CSR_SSCRATCH, boot_hartid); + + status = efi_mem_init(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Failed to initialize memory\n"); + return status; + } + + cpu_init(); + thread_info_init(); + io_init(); + initrd_setup(); + + if (!(auxinfo.flags & AUXINFO_MMU_OFF)) + setup_vm(); + + banner(); + + return EFI_SUCCESS; +} +#endif /* CONFIG_EFI */