All of lore.kernel.org
 help / color / mirror / Atom feed
From: Julien Grall <julien@xen.org>
To: xen-devel@lists.xenproject.org
Cc: michal.orzel@amd.com, Luca.Fancellu@arm.com,
	Julien Grall <jgrall@amazon.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Julien Grall <julien@xen.org>,
	Bertrand Marquis <bertrand.marquis@arm.com>,
	Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Subject: [PATCH v3 05/18] xen/arm: Clean-up the memory layout
Date: Mon, 12 Dec 2022 09:55:10 +0000	[thread overview]
Message-ID: <20221212095523.52683-6-julien@xen.org> (raw)
In-Reply-To: <20221212095523.52683-1-julien@xen.org>

From: Julien Grall <jgrall@amazon.com>

In a follow-up patch, the base address for the common mappings will
vary between arm32 and arm64. To avoid any duplication, define
every mapping in the common region from the previous one.

Take the opportunity to:
    * add missing *_SIZE for FIXMAP_VIRT_* and XEN_VIRT_*
    * switch to MB()/GB() to be avoid hexadecimal (easier to read)

Signed-off-by: Julien Grall <jgrall@amazon.com>

---
    Changes in v3:
        - Switch more macros to use MB()/GB()
        - Remove duplicated sentence in the commit message

    Changes in v2:
        - Use _AT(vaddr_t, ...) to build on 32-bit.
        - Drop COMMON_VIRT_START
---
 xen/arch/arm/include/asm/config.h | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/xen/arch/arm/include/asm/config.h b/xen/arch/arm/include/asm/config.h
index 0fefed1b8aa9..87851e677701 100644
--- a/xen/arch/arm/include/asm/config.h
+++ b/xen/arch/arm/include/asm/config.h
@@ -107,14 +107,19 @@
  *  Unused
  */
 
-#define XEN_VIRT_START         _AT(vaddr_t,0x00200000)
-#define FIXMAP_ADDR(n)        (_AT(vaddr_t,0x00400000) + (n) * PAGE_SIZE)
+#define XEN_VIRT_START          _AT(vaddr_t, MB(2))
+#define XEN_VIRT_SIZE           _AT(vaddr_t, MB(2))
 
-#define BOOT_FDT_VIRT_START    _AT(vaddr_t,0x00600000)
-#define BOOT_FDT_VIRT_SIZE     _AT(vaddr_t, MB(4))
+#define FIXMAP_VIRT_START       (XEN_VIRT_START + XEN_VIRT_SIZE)
+#define FIXMAP_VIRT_SIZE        _AT(vaddr_t, MB(2))
+
+#define FIXMAP_ADDR(n)          (FIXMAP_VIRT_START + (n) * PAGE_SIZE)
+
+#define BOOT_FDT_VIRT_START     (FIXMAP_VIRT_START + FIXMAP_VIRT_SIZE)
+#define BOOT_FDT_VIRT_SIZE      _AT(vaddr_t, MB(4))
 
 #ifdef CONFIG_LIVEPATCH
-#define LIVEPATCH_VMAP_START   _AT(vaddr_t,0x00a00000)
+#define LIVEPATCH_VMAP_START    (BOOT_FDT_VIRT_START + BOOT_FDT_VIRT_SIZE)
 #define LIVEPATCH_VMAP_SIZE    _AT(vaddr_t, MB(2))
 #endif
 
@@ -124,18 +129,18 @@
 
 #define CONFIG_SEPARATE_XENHEAP 1
 
-#define FRAMETABLE_VIRT_START  _AT(vaddr_t,0x02000000)
+#define FRAMETABLE_VIRT_START  _AT(vaddr_t, MB(32))
 #define FRAMETABLE_SIZE        MB(128-32)
 #define FRAMETABLE_NR          (FRAMETABLE_SIZE / sizeof(*frame_table))
 #define FRAMETABLE_VIRT_END    (FRAMETABLE_VIRT_START + FRAMETABLE_SIZE - 1)
 
-#define VMAP_VIRT_START        _AT(vaddr_t,0x10000000)
+#define VMAP_VIRT_START        _AT(vaddr_t, MB(256))
 #define VMAP_VIRT_SIZE         _AT(vaddr_t, GB(1) - MB(256))
 
-#define XENHEAP_VIRT_START     _AT(vaddr_t,0x40000000)
+#define XENHEAP_VIRT_START     _AT(vaddr_t, GB(1))
 #define XENHEAP_VIRT_SIZE      _AT(vaddr_t, GB(1))
 
-#define DOMHEAP_VIRT_START     _AT(vaddr_t,0x80000000)
+#define DOMHEAP_VIRT_START     _AT(vaddr_t, GB(2))
 #define DOMHEAP_VIRT_SIZE      _AT(vaddr_t, GB(2))
 
 #define DOMHEAP_ENTRIES        1024  /* 1024 2MB mapping slots */
-- 
2.38.1



  parent reply	other threads:[~2022-12-12  9:55 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-12  9:55 [PATCH v3 00/18] xen/arm: Don't switch TTBR while the MMU is on Julien Grall
2022-12-12  9:55 ` [PATCH v3 01/18] xen/arm64: flushtlb: Reduce scope of barrier for local TLB flush Julien Grall
2022-12-13  9:11   ` Michal Orzel
2022-12-13  9:45     ` Julien Grall
2022-12-13  9:50       ` Michal Orzel
2023-01-23 16:19   ` Ayan Kumar Halder
2022-12-12  9:55 ` [PATCH v3 02/18] xen/arm64: flushtlb: Implement the TLBI repeat workaround for TLB flush by VA Julien Grall
2022-12-13  9:23   ` Michal Orzel
2022-12-12  9:55 ` [PATCH v3 03/18] xen/arm32: flushtlb: Reduce scope of barrier for local TLB flush Julien Grall
2022-12-13 10:48   ` Michal Orzel
2022-12-12  9:55 ` [PATCH v3 04/18] xen/arm: flushtlb: Reduce scope of barrier for the TLB range flush Julien Grall
2022-12-13 11:15   ` Michal Orzel
2022-12-12  9:55 ` Julien Grall [this message]
2022-12-13 10:57   ` [PATCH v3 05/18] xen/arm: Clean-up the memory layout Michal Orzel
2022-12-13 11:00     ` Michal Orzel
2022-12-12  9:55 ` [PATCH v3 06/18] xen/arm32: head: Replace "ldr rX, =<label>" with "mov_w rX, <label>" Julien Grall
2022-12-13  0:31   ` Stefano Stabellini
2022-12-13 11:10   ` Michal Orzel
2022-12-12  9:55 ` [PATCH v3 07/18] xen/arm32: head: Jump to the runtime mapping in enable_mmu() Julien Grall
2022-12-13  0:46   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 08/18] xen/arm32: head: Introduce an helper to flush the TLBs Julien Grall
2022-12-14 14:24   ` Michal Orzel
2023-01-12 19:38     ` Julien Grall
2022-12-12  9:55 ` [PATCH v3 09/18] xen/arm32: head: Remove restriction where to load Xen Julien Grall
2022-12-13 18:23   ` Julien Grall
2022-12-12  9:55 ` [PATCH v3 10/18] xen/arm32: head: Widen the use of the temporary mapping Julien Grall
2022-12-12  9:55 ` [PATCH v3 11/18] xen/arm: Enable use of dump_pt_walk() early during boot Julien Grall
2022-12-13  1:06   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 12/18] xen/arm64: Rework the memory layout Julien Grall
2022-12-13  1:22   ` Stefano Stabellini
2022-12-13 18:31     ` Julien Grall
2022-12-12  9:55 ` [PATCH v3 13/18] xen/arm: mm: Allow xen_pt_update() to work with the current root table Julien Grall
2022-12-13  1:24   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 14/18] xen/arm: mm: Allow dump_hyp_walk() to work on " Julien Grall
2022-12-13  1:24   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 15/18] xen/arm64: mm: Introduce helpers to prepare/enable/disable the identity mapping Julien Grall
2022-12-13  1:41   ` Stefano Stabellini
2023-01-12 22:03     ` Julien Grall
2022-12-12  9:55 ` [PATCH v3 16/18] xen/arm: linker: Indent correctly _stext Julien Grall
2022-12-13  1:42   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 17/18] xen/arm: linker: The identitymap check should cover the whole .text.header Julien Grall
2022-12-13  1:44   ` Stefano Stabellini
2022-12-12  9:55 ` [PATCH v3 18/18] xen/arm64: mm: Rework switch_ttbr() Julien Grall
2022-12-13  2:00   ` Stefano Stabellini
2022-12-13 19:08     ` Julien Grall
2022-12-13 22:56       ` Stefano Stabellini
2022-12-13 23:01         ` Julien Grall
2022-12-15 11:48 ` [PATCH v3 00/18] xen/arm: Don't switch TTBR while the MMU is on Julien Grall

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20221212095523.52683-6-julien@xen.org \
    --to=julien@xen.org \
    --cc=Luca.Fancellu@arm.com \
    --cc=Volodymyr_Babchuk@epam.com \
    --cc=bertrand.marquis@arm.com \
    --cc=jgrall@amazon.com \
    --cc=michal.orzel@amd.com \
    --cc=sstabellini@kernel.org \
    --cc=xen-devel@lists.xenproject.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.