Messages in this thread | | | Date | Tue, 16 Oct 2018 21:11:14 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory |
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On Tue, Oct 16, 2018 at 11:13:54AM -0400, Masayoshi Mizuma wrote: > Hi Boris, Baoquan and all, > > I have created a RFC patch for adjust KASLR padding size. > This patch is based on Can's v8 patch [1/3], and the Can's patch > will be changed in the future, so this patch is just RFC. > > Welcome to any comments and suggestions. Thanks!
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> diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h > index a06cbf019744..c987c725e93a 100644 > --- a/arch/x86/include/uapi/asm/bootparam.h > +++ b/arch/x86/include/uapi/asm/bootparam.h > @@ -191,7 +191,8 @@ struct boot_params { > __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)]; > __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */ > struct boot_e820_entry e820_table[E820_MAX_ENTRIES_ZEROPAGE]; /* 0x2d0 */ > - __u8 _pad8[48]; /* 0xcd0 */ > + __u8 _pad8[40]; /* 0xcd0 */ > + __u64 possible_mem_addr; /* 0xcf8 */
Where in the example I gave you with add_e820ext() do you see members being added to struct boot_params?
Take a look at it again pls.
-- Regards/Gruss, Boris.
Good mailing practices for 400: avoid top-posting and trim the reply.
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