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[220.132.236.182]) by smtp.gmail.com with ESMTPSA id i187sm15124648pfg.33.2020.03.24.00.30.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2020 00:30:58 -0700 (PDT) From: Zong Li To: palmer@dabbelt.com, paul.walmsley@sifive.com, alex@ghiti.fr, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH RFC 1/8] riscv/kaslr: add interface to get kaslr offset Date: Tue, 24 Mar 2020 15:30:46 +0800 Message-Id: X-Mailer: git-send-email 2.25.2 In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200324_003059_714086_E905E8E1 X-CRM114-Status: UNSURE ( 6.49 ) X-CRM114-Notice: Please train this message. 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Signed-off-by: Zong Li Reviewed-by: Alexandre Ghiti --- arch/riscv/include/asm/page.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index 92848e172a40..e2c2020f0a8d 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -101,6 +101,11 @@ extern unsigned long kernel_virt_addr; extern unsigned long max_low_pfn; extern unsigned long min_low_pfn; +static inline unsigned long get_kaslr_offset(void) +{ + return kernel_virt_addr - PAGE_OFFSET; +} + #define __pa_to_va_nodebug(x) ((void *)((unsigned long) (x) + va_pa_offset)) #define __va_to_pa_nodebug(x) ((unsigned long)(x) - va_pa_offset)