[Crash-utility] 答复: 答复: [PATCH] x86_64: vtop supports 1G huge pages

-----Original Message----- > > > Crash utility currently does not supporting virtual to physical > > > address translation for 1G huge pages on x86_64, This patch tries > > > to address this issue by providing address translation support for > > > huge pages in 'vtop' command. > > > > Good catch! I think it would be better to add the same behavior > > also to x86_64_kvtop(). Could you do it? > > > > Thanks, > > Kazu > > > > Yes, I can. But how should I test? You can get the kernel virtual address corresponding to the physical address of a user virtual address with ptov command, and then do vtop again the kernel virtual address. For example: crash.1Ghuge> vtop 7f4780000000 VIRTUAL PHYSICAL 7f4780000000 1a00000000 PGD: 2fa32e47f0 => 8000002fb2f30067 PUD: 2fb2f308f0 => 8000001a000008e7 PAGE: 1a00000000 (1GB) ... crash.1Ghuge> ptov 1a00000000 VIRTUAL PHYSICAL ffff8fe580000000 1a00000000 crash.1Ghuge> vtop ffff8fe580000000 VIRTUAL PHYSICAL ffff8fe580000000 1a00000000 PGD DIRECTORY: ffffffff92c0a000 PAGE DIRECTORY: 18b2001067 PUD: 18b2001cb0 => 8000001a000001e3 PMD: 1a00000000 => 706050403020100 <<-- should print "(1GB)" and PTE info PAGE PHYSICAL MAPPING INDEX CNT FLAGS fffffa1aa8000000 1a00000000 ffff8ffb525d0cb9 0 1 57ffffc001000c uptodate,dirty,head Thanks, Kazu

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