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| author | Siyuan Fu <siyuan.fu@intel.com> | 2020-01-08 11:22:30 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-01-10 06:20:42 +0000 |
| commit | dd01704111c6e85b7bca62968d48abc2c626a3c6 (patch) | |
| tree | 3875ec78c3ee17921feac2cccbea986cf2daa11f /UefiCpuPkg/UefiCpuPkg.uni | |
| parent | c7c964b10999895685c3bcf844e5b7261af05619 (diff) | |
| download | edk2-dd01704111c6e85b7bca62968d48abc2c626a3c6.tar.gz | |
UefiCpuPkg: Shadow microcode patch according to FIT microcode entry.
The existing MpInitLib will shadow the microcode update patches from
flash to memory and this is done by searching microcode region specified
by PCD PcdCpuMicrocodePatchAddress and PcdCpuMicrocodePatchRegionSize.
This brings a limition to platform FW that all the microcode patches must
be placed in one continuous flash space.
This patch shadows microcode update according to FIT microcode entries if
it's present, otherwise it will fallback to original logic (by PCD).
A new featured PCD gUefiCpuPkgTokenSpaceGuid.PcdCpuShadowMicrocodeByFit
is added for enabling/disabling this support.
TEST: Tested on FIT enabled platform.
BZ: https://tianocore.acgmultimedia.com/show_bug.cgi?id=2449
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Siyuan Fu <siyuan.fu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'UefiCpuPkg/UefiCpuPkg.uni')
| -rw-r--r-- | UefiCpuPkg/UefiCpuPkg.uni | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/UefiCpuPkg/UefiCpuPkg.uni b/UefiCpuPkg/UefiCpuPkg.uni index c0d6ed5136..2db49e841b 100644 --- a/UefiCpuPkg/UefiCpuPkg.uni +++ b/UefiCpuPkg/UefiCpuPkg.uni @@ -100,6 +100,12 @@ "TRUE - locked.<BR>\n"
"FALSE - unlocked.<BR>"
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuShadowMicrocodeByFit_PROMPT #language en-US "FIT based microcode shadowing"
+
+#string STR_gUefiCpuPkgTokenSpaceGuid_PcdCpuShadowMicrocodeByFit_HELP #language en-US "Indicates if FIT based microcode shadowing will be enabled.<BR><BR>\n"
+ "TRUE - FIT base microcode shadowing will be enabled.<BR>\n"
+ "FALSE - FIT base microcode shadowing will be disabled.<BR>"
+
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdPeiTemporaryRamStackSize_PROMPT #language en-US "Stack size in the temporary RAM"
#string STR_gUefiCpuPkgTokenSpaceGuid_PcdPeiTemporaryRamStackSize_HELP #language en-US "Specifies stack size in the temporary RAM. 0 means half of TemporaryRamSize."
|