From: Anup Patel <anup@brainfault.org> To: Alexandre Ghiti <alex@ghiti.fr> Cc: Jonathan Corbet <corbet@lwn.net>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Arnd Bergmann <arnd@arndb.de>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, linux-doc@vger.kernel.org, linux-riscv <linux-riscv@lists.infradead.org>, "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>, kasan-dev@googlegroups.com, linux-arch <linux-arch@vger.kernel.org>, Linux Memory Management List <linux-mm@kvack.org> Subject: Re: [PATCH] riscv: Remove 32b kernel mapping from page table dump Date: Tue, 20 Apr 2021 09:49:18 +0530 [thread overview] Message-ID: <CAAhSdy3csxeTiXgf8eKnRYhD7BM1LDLPddrn527AkA_-fiEGkw@mail.gmail.com> (raw) In-Reply-To: <20210418112856.15078-1-alex@ghiti.fr> On Sun, Apr 18, 2021 at 4:59 PM Alexandre Ghiti <alex@ghiti.fr> wrote: > > The 32b kernel mapping lies in the linear mapping, there is no point in > printing its address in page table dump, so remove this leftover that > comes from moving the kernel mapping outside the linear mapping for 64b > kernel. > > Fixes: e9efb21fe352 ("riscv: Prepare ptdump for vm layout dynamic addresses") > Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Looks good to me. Reviewed-by: Anup Patel <anup@brainfault.org> Regards, Anup > --- > arch/riscv/mm/ptdump.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c > index 0aba4421115c..a4ed4bdbbfde 100644 > --- a/arch/riscv/mm/ptdump.c > +++ b/arch/riscv/mm/ptdump.c > @@ -76,8 +76,8 @@ enum address_markers_idx { > PAGE_OFFSET_NR, > #ifdef CONFIG_64BIT > MODULES_MAPPING_NR, > -#endif > KERNEL_MAPPING_NR, > +#endif > END_OF_SPACE_NR > }; > > @@ -99,8 +99,8 @@ static struct addr_marker address_markers[] = { > {0, "Linear mapping"}, > #ifdef CONFIG_64BIT > {0, "Modules mapping"}, > -#endif > {0, "Kernel mapping (kernel, BPF)"}, > +#endif > {-1, NULL}, > }; > > @@ -379,8 +379,8 @@ static int ptdump_init(void) > address_markers[PAGE_OFFSET_NR].start_address = PAGE_OFFSET; > #ifdef CONFIG_64BIT > address_markers[MODULES_MAPPING_NR].start_address = MODULES_VADDR; > -#endif > address_markers[KERNEL_MAPPING_NR].start_address = kernel_virt_addr; > +#endif > > kernel_ptd_info.base_addr = KERN_VIRT_START; > > -- > 2.20.1 >
WARNING: multiple messages have this Message-ID (diff)
From: Anup Patel <anup@brainfault.org> To: Alexandre Ghiti <alex@ghiti.fr> Cc: Jonathan Corbet <corbet@lwn.net>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Arnd Bergmann <arnd@arndb.de>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Alexander Potapenko <glider@google.com>, Dmitry Vyukov <dvyukov@google.com>, linux-doc@vger.kernel.org, linux-riscv <linux-riscv@lists.infradead.org>, "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>, kasan-dev@googlegroups.com, linux-arch <linux-arch@vger.kernel.org>, Linux Memory Management List <linux-mm@kvack.org> Subject: Re: [PATCH] riscv: Remove 32b kernel mapping from page table dump Date: Tue, 20 Apr 2021 09:49:18 +0530 [thread overview] Message-ID: <CAAhSdy3csxeTiXgf8eKnRYhD7BM1LDLPddrn527AkA_-fiEGkw@mail.gmail.com> (raw) In-Reply-To: <20210418112856.15078-1-alex@ghiti.fr> On Sun, Apr 18, 2021 at 4:59 PM Alexandre Ghiti <alex@ghiti.fr> wrote: > > The 32b kernel mapping lies in the linear mapping, there is no point in > printing its address in page table dump, so remove this leftover that > comes from moving the kernel mapping outside the linear mapping for 64b > kernel. > > Fixes: e9efb21fe352 ("riscv: Prepare ptdump for vm layout dynamic addresses") > Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Looks good to me. Reviewed-by: Anup Patel <anup@brainfault.org> Regards, Anup > --- > arch/riscv/mm/ptdump.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/arch/riscv/mm/ptdump.c b/arch/riscv/mm/ptdump.c > index 0aba4421115c..a4ed4bdbbfde 100644 > --- a/arch/riscv/mm/ptdump.c > +++ b/arch/riscv/mm/ptdump.c > @@ -76,8 +76,8 @@ enum address_markers_idx { > PAGE_OFFSET_NR, > #ifdef CONFIG_64BIT > MODULES_MAPPING_NR, > -#endif > KERNEL_MAPPING_NR, > +#endif > END_OF_SPACE_NR > }; > > @@ -99,8 +99,8 @@ static struct addr_marker address_markers[] = { > {0, "Linear mapping"}, > #ifdef CONFIG_64BIT > {0, "Modules mapping"}, > -#endif > {0, "Kernel mapping (kernel, BPF)"}, > +#endif > {-1, NULL}, > }; > > @@ -379,8 +379,8 @@ static int ptdump_init(void) > address_markers[PAGE_OFFSET_NR].start_address = PAGE_OFFSET; > #ifdef CONFIG_64BIT > address_markers[MODULES_MAPPING_NR].start_address = MODULES_VADDR; > -#endif > address_markers[KERNEL_MAPPING_NR].start_address = kernel_virt_addr; > +#endif > > kernel_ptd_info.base_addr = KERN_VIRT_START; > > -- > 2.20.1 > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2021-04-20 4:19 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-18 11:28 [PATCH] riscv: Remove 32b kernel mapping from page table dump Alexandre Ghiti 2021-04-18 11:28 ` Alexandre Ghiti 2021-04-20 4:19 ` Anup Patel [this message] 2021-04-20 4:19 ` Anup Patel 2021-04-20 4:19 ` Anup Patel 2021-04-28 7:26 ` Alex Ghiti 2021-04-28 7:26 ` Alex Ghiti
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