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From: Alex Ghiti <alex@ghiti.fr>
To: Zong Li <zong.li@sifive.com>,
	palmer@dabbelt.com, paul.walmsley@sifive.com,
	linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC 1/8] riscv/kaslr: add interface to get kaslr offset
Date: Tue, 7 Apr 2020 01:08:13 -0400	[thread overview]
Message-ID: <d6201d21-9631-dd22-2ff1-af7520086c32@ghiti.fr> (raw)
In-Reply-To: <cf8585177e6798095b1af02f28dad5a3271a761e.1584352425.git.zong.li@sifive.com>

On 3/24/20 3:30 AM, Zong Li wrote:
> Add interface to get the random offset.
> 
> Signed-off-by: Zong Li <zong.li@sifive.com>
> ---
>   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)
>   
> 

No problem for this one:

Reviewed-by: Alexandre Ghiti <alex@ghiti.fr>

Thanks,

Alex

  reply	other threads:[~2020-04-07  5:08 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-24  7:30 [PATCH RFC 0/8] Support KASLR for RISC-V Zong Li
2020-03-24  7:30 ` [PATCH RFC 1/8] riscv/kaslr: add interface to get kaslr offset Zong Li
2020-04-07  5:08   ` Alex Ghiti [this message]
2020-03-24  7:30 ` [PATCH RFC 2/8] riscv/kaslr: introduce functions to clear page table Zong Li
2020-04-07  5:09   ` Alex Ghiti
2020-04-07  9:17     ` Zong Li
2020-04-07  9:17       ` Zong Li
2020-03-24  7:30 ` [PATCH RFC 3/8] riscv/kaslr: support KASLR infrastructure Zong Li
2020-04-07  5:10   ` Alex Ghiti
2020-04-07 10:34     ` Zong Li
2020-04-07 10:34       ` Zong Li
2020-04-09  5:53       ` Alex Ghiti
2020-04-09  5:53         ` Alex Ghiti
2020-04-09 11:08         ` Zong Li
2020-04-09 11:08           ` Zong Li
2020-03-24  7:30 ` [PATCH RFC 4/8] riscv/kaslr: randomize the kernel image offset Zong Li
2020-04-07  5:11   ` Alex Ghiti
2020-04-07 10:53     ` Zong Li
2020-04-07 10:53       ` Zong Li
2020-04-09  5:51       ` Alex Ghiti
2020-04-09  5:51         ` Alex Ghiti
2020-04-09 10:31         ` Zong Li
2020-04-09 10:31           ` Zong Li
2020-04-10 15:58           ` Alex Ghiti
2020-04-10 15:58             ` Alex Ghiti
2020-04-11  8:20             ` Zong Li
2020-04-11  8:20               ` Zong Li
2020-04-12  6:53               ` Alex Ghiti
2020-04-12  6:53                 ` Alex Ghiti
2020-04-14  2:46                 ` Zong Li
2020-04-14  2:46                   ` Zong Li
2020-04-14  5:43                   ` Alex Ghiti
2020-04-14  5:43                     ` Alex Ghiti
2020-04-14  7:00                     ` Zong Li
2020-04-14  7:00                       ` Zong Li
2020-03-24  7:30 ` [PATCH RFC 5/8] riscv/kaslr: support sparse memory model Zong Li
2020-03-24  7:30 ` [PATCH RFC 6/8] riscv/kaslr: clear the original kernel image Zong Li
2020-04-07  5:11   ` Alex Ghiti
2020-04-07 11:18     ` Zong Li
2020-04-07 11:18       ` Zong Li
2020-04-09  5:53       ` Alex Ghiti
2020-04-09  5:53         ` Alex Ghiti
2020-04-09  8:14         ` Alex Ghiti
2020-04-09  8:14           ` Alex Ghiti
2020-03-24  7:30 ` [PATCH RFC 7/8] riscv/kaslr: add cmdline support to disable KASLR Zong Li
2020-03-24  7:30 ` [PATCH RFC 8/8] riscv/kaslr: dump out kernel offset information on panic Zong Li

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