[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Minios-devel] [UNIKRAFT PATCHv3 21/25] plat/kvm: arm64: Support build L3 table for large image size
Hello Wei Chen, This patch is fine. Reviewed-by: Sharan Santhanam <sharan.santhanam@xxxxxxxxx> Thanks & Regards Sharan On 12/13/18 10:15 AM, Wei Chen wrote: We have updated the L3 table build function to support large memory range. In this case, we can support build L3 tables for images exceeded 2MB. Signed-off-by: Wei Chen <wei.chen@xxxxxxx> --- plat/kvm/arm/pagetable64.S | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/plat/kvm/arm/pagetable64.S b/plat/kvm/arm/pagetable64.S index 212f8e0..8d9e923 100644 --- a/plat/kvm/arm/pagetable64.S +++ b/plat/kvm/arm/pagetable64.S @@ -62,6 +62,7 @@ virt_bits: /* * We will use a direct map for physical address and virtual address * (PA = VA 1:1 mapping) + * x15 = image size (trashed) */ ENTRY(create_pagetables) /* Save link address */ @@ -134,20 +135,30 @@ ENTRY(create_pagetables) add x9, x14, #L2_TABLE_OFFSET; bl link_l1_pagetable- /* 3rd: Build a L3 pagetable for 0~2MB*/- add x6, x14, #L3_TABLE_OFFSET; + /* 3rd: Build a L3 pagetable for image occupied memory */ + add x16, x14, #L3_TABLE_OFFSET + mov x17, #RAM_ADDR_START + + mov x6, x16 ldr x7, =SECT_ATTR_NORMAL - mov x8, #RAM_ADDR_START - mov x9, x8 - mov x10, 512 + mov x8, x17 + mov x9, x17 + lsr x10, x15, L3_SHIFT bl build_l3_pagetable/* 4th: Link this L3 pagetable to L2 entry */- add x6, x14, #L2_TABLE_OFFSET; - mov x8, #RAM_ADDR_START - add x9, x14, #L3_TABLE_OFFSET; + add x6, x14, #L2_TABLE_OFFSET +1: + mov x8, x17 + mov x9, x16 bl link_l2_pagetable+ /* Check whether the image mapping has been done */+ add x16, x16, #__PAGE_SIZE + add x17, x17, #L2_SIZE + sub x15, x15, #L2_SIZE + cbnz x15, 1b + /* 5th: Update dtb section to readonly */ ldr x8, =_dtb ldr x9, =_text _______________________________________________ Minios-devel mailing list Minios-devel@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/minios-devel
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