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From: Richard Henderson <richard.henderson@linaro.org>
To: Xianglai Li <lixianglai@loongson.cn>,
	qemu-devel@nongnu.org, gaosong@loongson.cn
Cc: maobibo@loongson.cn, yangxiaojuan@loongson.cn,
	zhaotianrui@loongson.cn, yijun@loongson.cn,
	wuruiyang@loongson.cn, zltjiangshi@gmail.com
Subject: Re: [PATCH V6] target/loongarch: Fix tlb huge page loading issue
Date: Mon, 18 Mar 2024 06:57:42 -1000	[thread overview]
Message-ID: <ada7d62a-6e40-4383-bc3c-33140cba2c84@linaro.org> (raw)
In-Reply-To: <20240318070332.1273939-1-lixianglai@loongson.cn>

On 3/17/24 21:03, Xianglai Li wrote:
> When we use qemu tcg simulation, the page size of bios is 4KB.
> When using the level 2 super huge page (page size is 1G) to create the page table,
> it is found that the content of the corresponding address space is abnormal,
> resulting in the bios can not start the operating system and graphical interface normally.
> 
> The lddir and ldpte instruction emulation has
> a problem with the use of super huge page processing above level 2.
> The page size is not correctly calculated,
> resulting in the wrong page size of the table entry found by tlb.
> 
> Signed-off-by: Xianglai Li<lixianglai@loongson.cn>
> ---
>   target/loongarch/cpu-csr.h        |   3 +
>   target/loongarch/internals.h      |   5 --
>   target/loongarch/tcg/tlb_helper.c | 113 +++++++++++++++++++++---------
>   3 files changed, 82 insertions(+), 39 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~


      reply	other threads:[~2024-03-18 16:58 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-18  7:03 [PATCH V6] target/loongarch: Fix tlb huge page loading issue Xianglai Li
2024-03-18 16:57 ` Richard Henderson [this message]

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