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From: "xianglai" <lixianglai@loongson.cn>
To: devel@edk2.groups.io
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Bibo Mao <maobibo@loongson.cn>, Chao Li <lichao@loongson.cn>,
	Leif Lindholm <quic_llindhol@quicinc.com>,
	Liming Gao <gaoliming@byosoft.com.cn>,
	Michael D Kinney <michael.d.kinney@intel.com>
Subject: [edk2-platforms] Platform/Loongson: Set common page size to 16k
Date: Thu, 11 May 2023 09:33:40 +0800	[thread overview]
Message-ID: <163e3c7aa13b5334c6ece2307d26246fb5043716.1683768785.git.lixianglai@loongson.cn> (raw)

Default page size is 16K for loongarch qemu tcg code section
separated with data section with 16K page alignment,
And data write operation in the same page with code section
will cause qemu TB flush.

Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Bibo Mao <maobibo@loongson.cn>
Cc: Chao Li <lichao@loongson.cn>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Signed-off-by: xianglai li <lixianglai@loongson.cn>
---
 Platform/Loongson/LoongArchQemuPkg/Loongson.dsc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc b/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
index 6875e39cc6..13b27d84b8 100644
--- a/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
+++ b/Platform/Loongson/LoongArchQemuPkg/Loongson.dsc
@@ -61,8 +61,13 @@
 [BuildOptions.LOONGARCH64.EDKII.SEC]
   *_*_*_CC_FLAGS                 =
 
+#
+# default page size is 16K for loongarch qemu tcg
+# code section separated with data section with 16K page alignment, else data
+# write operation in the same page with code section will cause qemu TB flush
+#
 [BuildOptions.common.EDKII.DXE_CORE,BuildOptions.common.EDKII.DXE_DRIVER,BuildOptions.common.EDKII.UEFI_DRIVER,BuildOptions.common.EDKII.UEFI_APPLICATION]
-  GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x1000
+  GCC:*_*_*_DLINK_FLAGS = -z common-page-size=0x4000
 
 [BuildOptions.common.EDKII.DXE_RUNTIME_DRIVER]
   GCC:*_*_LOONGARCH64_DLINK_FLAGS = -z common-page-size=0x10000
-- 
2.31.1


             reply	other threads:[~2023-05-11  1:33 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-11  1:33 xianglai [this message]
2023-05-11  1:43 ` [edk2-devel] [edk2-platforms] Platform/Loongson: Set common page size to 16k Chao Li
2023-05-11  1:43 ` maobibo

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