From: Ian Munsie <imunsie@au1.ibm.com>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
"andrew.donnellan" <andrew.donnellan@au1.ibm.com>,
Manoj Kumar <kumarmn@us.ibm.com>,
"Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>
Cc: benh <benh@kernel.crashing.org>, paulus <paulus@samba.org>,
mpe <mpe@ellerman.id.au>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH 06/65] powerpc/cxl: Use REGION_ID instead of opencoding
Date: Sun, 27 Mar 2016 10:48:07 -0500 [thread overview]
Message-ID: <1459093368-sup-4481@x230.ozlabs.ibm.com> (raw)
In-Reply-To: <1459067053-10835-6-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
Copying in Andrew Donnellan - this looks to be roughly equivalent to
your patch:
[PATCH] cxl: fix setting of _PAGE_USER bit when handling page faults
I think we were waiting on a v2 of that patch - does the below replace
the need for that?
Also copying cxlflash folk as an FYI
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Excerpts from Aneesh Kumar K.V's message of 2016-03-27 03:23:14 -0500:
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
> ---
> drivers/misc/cxl/fault.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
> index 33bd0ee30edd..67cc657e96cc 100644
> --- a/drivers/misc/cxl/fault.c
> +++ b/drivers/misc/cxl/fault.c
> @@ -154,7 +154,7 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
> access |= _PAGE_WRITE;
>
> access |= _PAGE_PRIVILEGED;
> - if ((!ctx->kernel) || ~(dar & (1ULL << 63)))
> + if ((!ctx->kernel) || (REGION_ID(dar) == USER_REGION_ID))
> access &= ~_PAGE_PRIVILEGED;
>
> if (dsisr & DSISR_NOHPTE)
next prev parent reply other threads:[~2016-03-27 15:49 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-27 8:23 [PATCH 01/65] powerpc/mm: Use big endian page table for book3s 64 Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 02/65] powerpc/mm: use _PAGE_READ to indicate Read access Aneesh Kumar K.V
2016-03-27 15:35 ` Ian Munsie
2016-03-31 0:57 ` Balbir Singh
2016-04-04 14:55 ` Aneesh Kumar K.V
2016-04-05 3:25 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 03/65] powerpc/mm/subpage: Clear RWX bit to indicate no access Aneesh Kumar K.V
2016-03-31 1:42 ` Balbir Singh
2016-04-04 14:59 ` Aneesh Kumar K.V
2016-04-05 3:30 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 04/65] powerpc/mm: Use pte_user instead of opencoding Aneesh Kumar K.V
2016-03-31 1:45 ` Balbir Singh
2016-04-04 15:00 ` Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 05/65] powerpc/mm: Replace _PAGE_USER with _PAGE_PRIVILEGED Aneesh Kumar K.V
2016-03-27 15:41 ` Ian Munsie
2016-03-27 8:23 ` [PATCH 06/65] powerpc/cxl: Use REGION_ID instead of opencoding Aneesh Kumar K.V
2016-03-27 15:48 ` Ian Munsie [this message]
2016-03-27 8:23 ` [PATCH 07/65] powerpc/mm: Remove RPN_SHIFT and RPN_SIZE Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 08/65] powerpc/mm: Update _PAGE_KERNEL_RO Aneesh Kumar K.V
2016-04-05 7:45 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 09/65] powerpc/mm: Use helper for finding pte bits mapping I/O area Aneesh Kumar K.V
2016-04-05 11:47 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 10/65] powerpc/mm: Drop WIMG in favour of new constants Aneesh Kumar K.V
2016-04-05 13:25 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 11/65] powerpc/mm: Use generic version of pmdp_clear_flush_young Aneesh Kumar K.V
2016-04-05 23:51 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 12/65] powerpc/mm: Use generic version of ptep_clear_flush_young Aneesh Kumar K.V
2016-04-05 23:53 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 13/65] powerpc/mm: Move common data structure between radix and hash to book3s 64 generic headers Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 14/65] powerpc/mm/power9: Add partition table format Aneesh Kumar K.V
2016-04-06 6:11 ` Balbir Singh
2016-03-27 8:23 ` [PATCH 15/65] powerpc/mm/hash: Add support for POWER9 hash Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 16/65] powerpc/mm: Move hash and no hash code to separate files Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 17/65] powerpc/mm/book3s: Rename hash specific PTE bits to carry H_ prefix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 18/65] powerpc/mm: Handle _PTE_NONE_MASK Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 19/65] powerpc/mm: Move common pte bits and accessors to book3s/64/pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 20/65] powerpc/mm: Move pte accessors that operate on common pte bits to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 21/65] powerpc/mm: Make page table size a variable Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 22/65] powerpc/mm: Move page table index and and vaddr to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 23/65] powerpc/mm: Move pte related function together Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 24/65] powerpc/mm/radix: Add radix pte defines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 25/65] powerpc/mm/radix: Dummy radix_enabled() Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 26/65] powerpc/mm: Add radix callbacks to pte accessors Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 27/65] powerpc/mm: Move hugetlb and THP related pmd accessors to pgtable.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 28/65] powerpc/mm/radix: Add radix callback for pmd accessors Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 29/65] powerpc/mm: Abstraction for early init routines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 30/65] powerpc/mm/radix: Add radix callback " Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 31/65] powerpc/mm: Abstraction for vmemmap and map_kernel_page Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 32/65] powerpc/mm/radix: Add radix callback for vmemmap and map_kernel page Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 33/65] powerpc/mm: Abstraction for switch_mmu_context Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 34/65] powerpc/mm/radix: Add mmu context handling callback for radix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 35/65] powerpc/mm: Rename mmu_context_hash64.c to mmu_context_book3s64.c Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 36/65] powerpc/mm: Hash linux abstraction for tlbflush routines Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 37/65] powerpc/mm/radix: Add " Aneesh Kumar K.V
2016-03-27 10:00 ` kbuild test robot
2016-03-28 17:58 ` Aneesh Kumar K.V
2016-03-27 10:09 ` kbuild test robot
2016-03-27 10:11 ` kbuild test robot
2016-03-27 8:23 ` [PATCH 38/65] powerpc/mm/radix: Add MMU_FTR_RADIX Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 39/65] powerpc/mm/radix: Use STD_MMU_64 to properly isolate hash related code Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 40/65] powerpc/mm/radix: Isolate hash table function from pseries guest code Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 41/65] powerpc/mm/radix: Add checks in slice code to catch radix usage Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 42/65] powerpc/mm/radix: Limit paca allocation in radix Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 43/65] powerpc/mm/radix: Pick the address layout for radix config Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 44/65] powerpc/mm/radix: Update secondary PTCR Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 45/65] powerpc/mm: Make a copy of pgalloc.h for 32 and 64 book3s Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 46/65] powerpc/mm: revert changes made to generic pgalloc-64.h Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 47/65] powerpc/mm: Copy pgalloc (part 2) Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 48/65] powerpc/mm: Simplify the code dropping 4 level table #ifdef Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 49/65] powerpc/mm: Rename function to indicate we are allocating fragments Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 50/65] powerpc/mm: make 4k and 64k use pte_t for pgtable_t Aneesh Kumar K.V
2016-03-27 8:23 ` [PATCH 51/65] powerpc/mm: Add radix pgalloc details Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 52/65] powerpc/mm: Update pte filter for radix Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 53/65] powerpc/mm: VMALLOC abstraction Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 54/65] powerpc/radix: update mmu cache Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 55/65] powerpc/mm: pte_frag abstraction Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 56/65] powerpc/mm: Fix vma_mmu_pagesize for radix Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 57/65] powerpc/mm: Add radix support for hugetlb Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 58/65] powerpc/mm/radix: Make sure swapper pgdir is properly aligned Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 59/65] powerpc/mm/radix: Add hugetlb support 4K page size Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 60/65] powerpc/mm: Drop PTE_ATOMIC_UPDATES from pmd_hugepage_update Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 61/65] powerpc/mm: THP is only available on hash64 as of now Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 62/65] powerpc/mm/thp: Abstraction for THP functions Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 63/65] powerpc/mm/radix: Add radix THP callbacks Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 64/65] powerpc/mm/radix: Add THP support for 4k linux page size Aneesh Kumar K.V
2016-03-27 8:24 ` [PATCH 65/65] powerpc/mm/radix: Cputable update for radix Aneesh Kumar K.V
2016-03-30 1:01 ` Michael Neuling
2016-04-01 6:25 ` Michael Ellerman
2016-04-01 9:34 ` Aneesh Kumar K.V
2018-06-28 23:55 ` Benjamin Herrenschmidt
2016-03-30 10:53 ` [PATCH 01/65] powerpc/mm: Use big endian page table for book3s 64 Balbir Singh
2016-04-04 15:03 ` Aneesh Kumar K.V
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