From: Julien Grall <julien.grall@arm.com> To: xen-devel@lists.xenproject.org Cc: Oleksandr_Tyshchenko@epam.com, Julien Grall <julien.grall@arm.com>, Stefano Stabellini <sstabellini@kernel.org>, Andrii_Anisov@epam.com Subject: [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Date: Tue, 14 May 2019 13:31:13 +0100 [thread overview] Message-ID: <20190514123125.29086-1-julien.grall@arm.com> (raw) Hi all, This is the third part of the boot/memory rework for Xen on Arm. At the moment, the update to Xen PT is scattered all around mm.c. This makes difficult to rework Xen memory layout or even ensuring we are following the Arm Arm properly (and we are not so far!). This part contains code to provide a generic function to update Xen PT. While I could have started from scratch, I decided to base the new function on create_xen_entries() (now renamed xen_pt_update()). This makes slightly easier to follow the changes. In this series, the new generic function will only support 3rd-level update and cannot be used in early boot (i.e because xenheap is not initialized). This will be extended in follow-up series to allow more use within mm.c. There are probably some optimization possible around the TLBs flush. I haven't looked at it so far. The last two patches of this series is to show how existing callers can be converted. There are more conversion to come in follow-up series. This series is based on the first two parts sent separately (see [1] and [2]). For convenience, I provided a branch with all the patches applied based on staging: git://xenbits.xen.org/people/julieng/xen-unstable.git branch mm/part3/v2 Cheers, [1] https://lists.xenproject.org/archives/html/xen-devel/2019-05/msg01109.html [2] https://lists.xenproject.org/archives/html/xen-devel/2019-05/msg01149.html Julien Grall (12): xen/arm: lpae: Add a macro to generate offsets from an address xen/arm: mm: Rename create_xen_entries() to xen_pt_update() xen/arm: mm: Move out of xen_pt_update() the logic to update an entry xen/arm: mm: Only increment mfn when valid in xen_pt_update xen/arm: mm: Introduce _PAGE_PRESENT and _PAGE_POPULATE xen/arm: mm: Sanity check any update of Xen page tables xen/arm: mm: Rework xen_pt_update_entry to avoid use xenmap_operation xen/arm: mm: Remove enum xenmap_operation xen/arm: mm: Use {, un}map_domain_page() to map/unmap Xen page-tables xen/arm: mm: Rework Xen page-tables walk during update xen/arm: mm: Don't open-code Xen PT update in {set, clear}_fixmap() xen/arm: mm: Remove set_pte_flags_on_range() xen/arch/arm/mm.c | 421 ++++++++++++++++++++++++++++++--------------- xen/arch/arm/p2m.c | 23 +-- xen/include/asm-arm/lpae.h | 9 + xen/include/asm-arm/page.h | 9 +- 4 files changed, 305 insertions(+), 157 deletions(-) -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
WARNING: multiple messages have this Message-ID (diff)
From: Julien Grall <julien.grall@arm.com> To: xen-devel@lists.xenproject.org Cc: Oleksandr_Tyshchenko@epam.com, Julien Grall <julien.grall@arm.com>, Stefano Stabellini <sstabellini@kernel.org>, Andrii_Anisov@epam.com Subject: [Xen-devel] [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Date: Tue, 14 May 2019 13:31:13 +0100 [thread overview] Message-ID: <20190514123125.29086-1-julien.grall@arm.com> (raw) Message-ID: <20190514123113.4yKseVC3qrNHSdOYNgyAZ3hF5sfSXpBl3gcPg4qqi3I@z> (raw) Hi all, This is the third part of the boot/memory rework for Xen on Arm. At the moment, the update to Xen PT is scattered all around mm.c. This makes difficult to rework Xen memory layout or even ensuring we are following the Arm Arm properly (and we are not so far!). This part contains code to provide a generic function to update Xen PT. While I could have started from scratch, I decided to base the new function on create_xen_entries() (now renamed xen_pt_update()). This makes slightly easier to follow the changes. In this series, the new generic function will only support 3rd-level update and cannot be used in early boot (i.e because xenheap is not initialized). This will be extended in follow-up series to allow more use within mm.c. There are probably some optimization possible around the TLBs flush. I haven't looked at it so far. The last two patches of this series is to show how existing callers can be converted. There are more conversion to come in follow-up series. This series is based on the first two parts sent separately (see [1] and [2]). For convenience, I provided a branch with all the patches applied based on staging: git://xenbits.xen.org/people/julieng/xen-unstable.git branch mm/part3/v2 Cheers, [1] https://lists.xenproject.org/archives/html/xen-devel/2019-05/msg01109.html [2] https://lists.xenproject.org/archives/html/xen-devel/2019-05/msg01149.html Julien Grall (12): xen/arm: lpae: Add a macro to generate offsets from an address xen/arm: mm: Rename create_xen_entries() to xen_pt_update() xen/arm: mm: Move out of xen_pt_update() the logic to update an entry xen/arm: mm: Only increment mfn when valid in xen_pt_update xen/arm: mm: Introduce _PAGE_PRESENT and _PAGE_POPULATE xen/arm: mm: Sanity check any update of Xen page tables xen/arm: mm: Rework xen_pt_update_entry to avoid use xenmap_operation xen/arm: mm: Remove enum xenmap_operation xen/arm: mm: Use {, un}map_domain_page() to map/unmap Xen page-tables xen/arm: mm: Rework Xen page-tables walk during update xen/arm: mm: Don't open-code Xen PT update in {set, clear}_fixmap() xen/arm: mm: Remove set_pte_flags_on_range() xen/arch/arm/mm.c | 421 ++++++++++++++++++++++++++++++--------------- xen/arch/arm/p2m.c | 23 +-- xen/include/asm-arm/lpae.h | 9 + xen/include/asm-arm/page.h | 9 +- 4 files changed, 305 insertions(+), 157 deletions(-) -- 2.11.0 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel
next reply other threads:[~2019-05-14 12:31 UTC|newest] Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-14 12:31 Julien Grall [this message] 2019-05-14 12:31 ` [Xen-devel] [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Julien Grall 2019-05-14 12:31 ` [PATCH MM-PART3 v2 01/12] xen/arm: lpae: Add a macro to generate offsets from an address Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 18:21 ` Stefano Stabellini 2019-06-11 18:27 ` Julien Grall 2019-05-14 12:31 ` [PATCH MM-PART3 v2 02/12] xen/arm: mm: Rename create_xen_entries() to xen_pt_update() Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 18:23 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 03/12] xen/arm: mm: Move out of xen_pt_update() the logic to update an entry Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 18:29 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 04/12] xen/arm: mm: Only increment mfn when valid in xen_pt_update Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 18:37 ` Stefano Stabellini 2019-06-11 19:56 ` [Xen-devel] Checking INVALID_MFN in mfn_add (WAS: Re: [PATCH MM-PART3 v2 04/12] xen/arm: mm: Only increment mfn when valid in xen_pt_update) Julien Grall 2019-06-11 20:24 ` Andrew Cooper 2019-06-12 12:47 ` Julien Grall 2019-06-12 15:57 ` Stefano Stabellini 2019-06-12 7:53 ` Jan Beulich 2019-05-14 12:31 ` [PATCH MM-PART3 v2 05/12] xen/arm: mm: Introduce _PAGE_PRESENT and _PAGE_POPULATE Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 22:35 ` Stefano Stabellini 2019-06-12 13:00 ` Julien Grall 2019-05-14 12:31 ` [PATCH MM-PART3 v2 06/12] xen/arm: mm: Sanity check any update of Xen page tables Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 0:10 ` Stefano Stabellini 2019-06-12 14:48 ` Julien Grall 2019-06-12 15:54 ` Stefano Stabellini 2019-06-12 15:58 ` Julien Grall 2019-05-14 12:31 ` [PATCH MM-PART3 v2 07/12] xen/arm: mm: Rework xen_pt_update_entry to avoid use xenmap_operation Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 22:22 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 08/12] xen/arm: mm: Remove enum xenmap_operation Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-11 22:38 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 09/12] xen/arm: mm: Use {, un}map_domain_page() to map/unmap Xen page-tables Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 22:25 ` Stefano Stabellini 2019-06-13 8:07 ` Julien Grall 2019-06-13 17:55 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 10/12] xen/arm: mm: Rework Xen page-tables walk during update Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 22:52 ` Stefano Stabellini 2019-06-13 8:20 ` Julien Grall 2019-06-13 17:59 ` Stefano Stabellini 2019-06-13 21:32 ` Julien Grall 2019-06-13 22:57 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 11/12] xen/arm: mm: Don't open-code Xen PT update in {set, clear}_fixmap() Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 22:33 ` Stefano Stabellini 2019-06-13 8:31 ` Julien Grall 2019-06-13 18:51 ` Stefano Stabellini 2019-06-13 21:21 ` Julien Grall 2019-06-13 22:55 ` Stefano Stabellini 2019-05-14 12:31 ` [PATCH MM-PART3 v2 12/12] xen/arm: mm: Remove set_pte_flags_on_range() Julien Grall 2019-05-14 12:31 ` [Xen-devel] " Julien Grall 2019-06-12 22:41 ` Stefano Stabellini 2019-06-13 8:51 ` Julien Grall 2019-06-13 18:04 ` Stefano Stabellini 2019-06-13 21:22 ` Julien Grall 2019-05-29 17:23 ` [PATCH MM-PART3 v2 00/12] xen/arm: Provide a generic function to update Xen PT Julien Grall 2019-05-29 17:23 ` [Xen-devel] " Julien Grall 2019-06-10 10:08 ` Julien Grall
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