From 9caaa79dd7e078ebb4012dde3b3d3a5d451df609 Mon Sep 17 00:00:00 2001 From: Eric Dong Date: Fri, 6 Dec 2019 11:36:35 +0800 Subject: UefiCpuPkg/PiSmmCpuDxeSmm: Avoid allocate Token every time REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2388 Token is new introduced by MM MP Protocol. Current logic allocate Token every time when need to use it. The logic caused SMI latency raised to very high. Update logic to allocate Token buffer at driver's entry point. Later use the token from the allocated token buffer. Only when all the buffer have been used, then need to allocate new buffer. Reviewed-by: Ray Ni Signed-off-by: Eric Dong Acked-by: Laszlo Ersek --- UefiCpuPkg/UefiCpuPkg.uni | 3 +++ 1 file changed, 3 insertions(+) (limited to 'UefiCpuPkg/UefiCpuPkg.uni') diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni index bfd696f48c..c0d6ed5136 100644 --- a/UefiCpuPkg/UefiCpuPkg.uni +++ b/UefiCpuPkg/UefiCpuPkg.uni @@ -272,3 +272,6 @@ "24000000 - 6th and 7th generation Intel Core processors and Intel Xeon W Processor Family(24MHz).
\n" "19200000 - Intel Atom processors based on Goldmont Microarchitecture with CPUID signature 06_5CH(19.2MHz).
\n" +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmMpTokenCountPerChunk_PROMPT #language en-US "Specify the count of pre allocated SMM MP tokens per chunk.\n" + +#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuSmmMpTokenCountPerChunk_HELP #language en-US "This value used to specify the count of pre allocated SMM MP tokens per chunk.\n" -- cgit v1.2.3