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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen staging] xen/arm32: Move MM specific registers to enable_mmu
commit c8c2045133fdd448f619f78b70c9ddf030e27f20
Author: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
AuthorDate: Sun Mar 30 20:03:04 2025 +0200
Commit: Michal Orzel <michal.orzel@xxxxxxx>
CommitDate: Mon Mar 31 10:29:43 2025 +0200
xen/arm32: Move MM specific registers to enable_mmu
All the memory management specific registers are initialized in enable_mmu.
Signed-off-by: Ayan Kumar Halder <ayan.kumar.halder@xxxxxxx>
Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
---
xen/arch/arm/arm32/head.S | 14 --------------
xen/arch/arm/arm32/mmu/head.S | 15 +++++++++++++++
2 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/xen/arch/arm/arm32/head.S b/xen/arch/arm/arm32/head.S
index 4ff5c220bc..50da179f81 100644
--- a/xen/arch/arm/arm32/head.S
+++ b/xen/arch/arm/arm32/head.S
@@ -218,20 +218,6 @@ cpu_init:
add pc, r1, r10 /* Call paddr(init func) */
cpu_init_done:
- /* Set up memory attribute type tables */
- mov_w r0, MAIR0VAL
- mov_w r1, MAIR1VAL
- mcr CP32(r0, HMAIR0)
- mcr CP32(r1, HMAIR1)
-
- /*
- * Set up the HTCR:
- * PT walks use Inner-Shareable accesses,
- * PT walks are write-back, write-allocate in both cache levels,
- * Full 32-bit address space goes through this table.
- */
- mov_w r0,
(TCR_RES1|TCR_SH0_IS|TCR_ORGN0_WBWA|TCR_IRGN0_WBWA|TCR_T0SZ(0))
- mcr CP32(r0, HTCR)
mov_w r0, HSCTLR_SET
mcr CP32(r0, HSCTLR)
diff --git a/xen/arch/arm/arm32/mmu/head.S b/xen/arch/arm/arm32/mmu/head.S
index 1e2bbf0c82..8fa74bd556 100644
--- a/xen/arch/arm/arm32/mmu/head.S
+++ b/xen/arch/arm/arm32/mmu/head.S
@@ -279,6 +279,21 @@ ENDPROC(create_page_tables)
enable_mmu:
PRINT("- Turning on paging -\r\n")
+ /* Set up memory attribute type tables */
+ mov_w r0, MAIR0VAL
+ mov_w r1, MAIR1VAL
+ mcr CP32(r0, HMAIR0)
+ mcr CP32(r1, HMAIR1)
+
+ /*
+ * Set up the HTCR:
+ * PT walks use Inner-Shareable accesses,
+ * PT walks are write-back, write-allocate in both cache levels,
+ * Full 32-bit address space goes through this table.
+ */
+ mov_w r0,
(TCR_RES1|TCR_SH0_IS|TCR_ORGN0_WBWA|TCR_IRGN0_WBWA|TCR_T0SZ(0))
+ mcr CP32(r0, HTCR)
+
/*
* The state of the TLBs is unknown before turning on the MMU.
* Flush them to avoid stale one.
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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