diff options
| author | Yao, Jiewen <jiewen.yao@intel.com> | 2015-11-30 19:57:40 +0000 |
|---|---|---|
| committer | lersek <lersek@Edk2> | 2015-11-30 19:57:40 +0000 |
| commit | 881520ea6778953c57d975ca2a9cf3f2114f99c4 (patch) | |
| tree | bd5c851c7c701bf60af72b036c80477964aec561 /BaseTools/Source/Python/build/build.py | |
| parent | 5e04f4b7e1a48cfa9e6b045f953e84becced2e9e (diff) | |
| download | edk2-platforms-881520ea6778953c57d975ca2a9cf3f2114f99c4.tar.xz | |
UefiCpuPkg/PiSmmCpu: Always set RW+P bit for page table by default
So that we can use write-protection for code later.
This is REPOST.
It includes the bug fix from "Paolo Bonzini" <pbonzini@redhat.com>:
Title: fix generation of 32-bit PAE page tables
"Bits 1 and 2 are reserved in 32-bit PAE Page Directory Pointer Table
Entries (PDPTEs); see Table 4-8 in the SDM. With VMX extended page
tables, the processor notices and fails the VM entry as soon as CR0.PG
is set to 1."
And thanks "Laszlo Ersek" <lersek@redhat.com> to validate the fix.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <jiewen.yao@intel.com>
Signed-off-by: "Paolo Bonzini" <pbonzini@redhat.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Cc: "Fan, Jeff" <jeff.fan@intel.com>
Cc: "Kinney, Michael D" <michael.d.kinney@intel.com>
Cc: "Laszlo Ersek" <lersek@redhat.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19067 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'BaseTools/Source/Python/build/build.py')
0 files changed, 0 insertions, 0 deletions