40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
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From 70e7ffec16e91138309ad3f76588cbd10c084394 Mon Sep 17 00:00:00 2001
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From: Bibo Mao <maobibo@loongson.cn>
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Date: Mon, 27 Nov 2023 12:02:31 +0800
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Subject: [PATCH] hw/loongarch/virt: Align high memory base address with super
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page size
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With LoongArch virt machine, there is low memory space with region
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0--0x10000000, and high memory space with started from 0x90000000.
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High memory space is aligned with 256M, it will be better if it is
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aligned with 1G, which is super page aligned for 4K page size.
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Currently linux kernel and uefi bios has no limitation with high
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memory base address, it is ok to set high memory base address
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with 0x80000000.
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Signed-off-by: Bibo Mao <maobibo@loongson.cn>
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Reviewed-by: Song Gao <gaosong@loongson.cn>
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Message-Id: <20231127040231.4123715-1-maobibo@loongson.cn>
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Signed-off-by: Song Gao <gaosong@loongson.cn>
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---
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include/hw/loongarch/virt.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/hw/loongarch/virt.h b/include/hw/loongarch/virt.h
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index 674f4655e0..db0831b471 100644
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--- a/include/hw/loongarch/virt.h
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+++ b/include/hw/loongarch/virt.h
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@@ -25,7 +25,7 @@
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#define VIRT_LOWMEM_BASE 0
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#define VIRT_LOWMEM_SIZE 0x10000000
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-#define VIRT_HIGHMEM_BASE 0x90000000
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+#define VIRT_HIGHMEM_BASE 0x80000000
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#define VIRT_GED_EVT_ADDR 0x100e0000
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#define VIRT_GED_MEM_ADDR (VIRT_GED_EVT_ADDR + ACPI_GED_EVT_SEL_LEN)
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#define VIRT_GED_REG_ADDR (VIRT_GED_MEM_ADDR + MEMORY_HOTPLUG_IO_LEN)
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--
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2.27.0
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