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[V3,0/1] target/loongarch: Fixed tlb huge page loading issue

Message ID cover.1709796364.git.lixianglai@loongson.cn (mailing list archive)
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Series target/loongarch: Fixed tlb huge page loading issue | expand

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Xianglai Li March 7, 2024, 7:37 a.m. UTC 
When we use qemu tcg simulation, the page size of bios is 4KB.
When using the level 2 super large 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 large 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.

Changes log:
V2->V3:
Delete the intermediate variable LDDIR_PS, and implement lddir and ldpte
huge pages by referring to the latest architecture reference manual.

V1->V2:
Modified the patch title format and Enrich the commit mesg description

Cc: maobibo@loongson.cn
Cc: Song Gao <gaosong@loongson.cn>
Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Cc: zhaotianrui@loongson.cn

Xianglai Li (1):
  target/loongarch: Fixed tlb huge page loading issue

 target/loongarch/internals.h      |  8 +++
 target/loongarch/tcg/tlb_helper.c | 92 +++++++++++++++++++++++--------
 2 files changed, 76 insertions(+), 24 deletions(-)