Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-05 Thread Andrey Konovalov
On Fri, Feb 5, 2021 at 6:43 PM Will Deacon wrote: > > On Fri, Feb 05, 2021 at 06:30:44PM +0100, Andrey Konovalov wrote: > > On Fri, Feb 5, 2021 at 6:19 PM Will Deacon wrote: > > > > > > On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote: > > > > > > > > > On Thu, Feb 04, 2021 at

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-05 Thread Will Deacon
On Fri, Feb 05, 2021 at 06:30:44PM +0100, Andrey Konovalov wrote: > On Fri, Feb 5, 2021 at 6:19 PM Will Deacon wrote: > > > > On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote: > > > > > > > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > > > > > On Sat, Jan 09,

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-05 Thread Lecopzer Chen
Will Deacon 於 2021年2月6日 週六 上午1:19寫道： > > On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote: > > > > > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > > > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > > > > > Linux support KAsan for VMALLOC

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-05 Thread Andrey Konovalov
On Fri, Feb 5, 2021 at 6:19 PM Will Deacon wrote: > > On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote: > > > > > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > > > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > > > > > Linux support KAsan

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-05 Thread Will Deacon
On Fri, Feb 05, 2021 at 12:37:21AM +0800, Lecopzer Chen wrote: > > > On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > > > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > > > > > ("kasan:

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-04 Thread Lecopzer Chen
> On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > > > > ("kasan: support backing vmalloc space with real shadow memory") > > > > > > > > Like

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-04 Thread Will Deacon
On Thu, Feb 04, 2021 at 10:46:12PM +0800, Lecopzer Chen wrote: > > On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > > > ("kasan: support backing vmalloc space with real shadow memory") > > > > > > Like how the

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-04 Thread Lecopzer Chen
> On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > > ("kasan: support backing vmalloc space with real shadow memory") > > > > Like how the MODULES_VADDR does now, just not to early populate > > the VMALLOC_START

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-04 Thread Will Deacon
On Sat, Jan 09, 2021 at 06:32:49PM +0800, Lecopzer Chen wrote: > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > ("kasan: support backing vmalloc space with real shadow memory") > > Like how the MODULES_VADDR does now, just not to early populate > the VMALLOC_START between

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-03 Thread Lecopzer Chen
> On Sat, 9 Jan 2021 at 11:33, Lecopzer Chen wrote: > > > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > > ("kasan: support backing vmalloc space with real shadow memory") > > > > Like how the MODULES_VADDR does now, just not to early populate > > the VMALLOC_START between

Re: [PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-02-03 Thread Ard Biesheuvel
On Sat, 9 Jan 2021 at 11:33, Lecopzer Chen wrote: > > Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 > ("kasan: support backing vmalloc space with real shadow memory") > > Like how the MODULES_VADDR does now, just not to early populate > the VMALLOC_START between VMALLOC_END. >

[PATCH v2 1/4] arm64: kasan: don't populate vmalloc area for CONFIG_KASAN_VMALLOC

2021-01-09 Thread Lecopzer Chen
Linux support KAsan for VMALLOC since commit 3c5c3cfb9ef4da9 ("kasan: support backing vmalloc space with real shadow memory") Like how the MODULES_VADDR does now, just not to early populate the VMALLOC_START between VMALLOC_END. similarly, the kernel code mapping is now in the VMALLOC area and