From: Heiko Carstens <hca@linux.ibm.com>
To: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>,
Alexander Gordeev <agordeev@linux.ibm.com>,
linux-s390@vger.kernel.org
Subject: Re: [PATCH 2/2] s390/ptdump: Add KMSAN page markers
Date: Tue, 23 Jul 2024 15:18:23 +0200 [thread overview]
Message-ID: <20240723131823.6750-B-hca@linux.ibm.com> (raw)
In-Reply-To: <20240723124441.120044-3-iii@linux.ibm.com>
On Tue, Jul 23, 2024 at 02:44:12PM +0200, Ilya Leoshkevich wrote:
> Add KMSAN vmalloc metadata areas to
> /sys/kernel/debug/kernel_page_tables. Example output:
>
> 0x000003a95fff9000-0x000003a960000000 28K PTE I
> ---[ vmalloc Area End ]---
> ---[ Kmsan vmalloc Shadow Start ]---
> 0x000003a960000000-0x000003a960010000 64K PTE RW NX
> [...]
> 0x000003d3dfff9000-0x000003d3e0000000 28K PTE I
> ---[ Kmsan vmalloc Shadow End ]---
> ---[ Kmsan vmalloc Origins Start ]---
> 0x000003d3e0000000-0x000003d3e0010000 64K PTE RW NX
> [...]
> 0x000003fe5fff9000-0x000003fe60000000 28K PTE I
> ---[ Kmsan vmalloc Origins End ]---
> ---[ Kmsan Modules Shadow Start ]---
> 0x000003fe60000000-0x000003fe60001000 4K PTE RW NX
> [...]
> 0x000003fe60100000-0x000003fee0000000 2047M PMD I
> ---[ Kmsan Modules Shadow End ]---
> ---[ Kmsan Modules Origins Start ]---
> 0x000003fee0000000-0x000003fee0001000 4K PTE RW NX
> [...]
> 0x000003fee0100000-0x000003ff60000000 2047M PMD I
> ---[ Kmsan Modules Origins End ]---
> ---[ Modules Area Start ]---
> 0x000003ff60000000-0x000003ff60001000 4K PTE RO X
>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
> ---
> arch/s390/mm/dump_pagetables.c | 30 ++++++++++++++++++++++++++++++
> 1 file changed, 30 insertions(+)
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
next prev parent reply other threads:[~2024-07-23 13:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-23 12:44 [PATCH 0/2] s390/kmsan: Two follow-up patches Ilya Leoshkevich
2024-07-23 12:44 ` [PATCH 1/2] s390/kmsan: Fix merge conflict with get_lowcore() introduction Ilya Leoshkevich
2024-07-23 13:18 ` Heiko Carstens
2024-07-25 9:10 ` Alexander Gordeev
2024-07-23 12:44 ` [PATCH 2/2] s390/ptdump: Add KMSAN page markers Ilya Leoshkevich
2024-07-23 13:18 ` Heiko Carstens [this message]
2024-07-25 9:10 ` Alexander Gordeev
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