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authorJordan Justen <jordan.l.justen@intel.com>2014-01-21 19:38:34 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2014-01-21 19:38:34 +0000
commitb382ede3864e17e8827dbc90c7d4f1540b94ff3f (patch)
treea11992942fe9601482f02f0bbd1e8c1d2f31a70f /OvmfPkg/Sec
parentbb4aa855f3615352d1cbe733b1a329f6d94c7264 (diff)
downloadedk2-platforms-b382ede3864e17e8827dbc90c7d4f1540b94ff3f.tar.xz
OvmfPkg X64 ResetVector: Move page tables from 512KB to 8MB
To help consolidate OVMF fixed memory uses, we declare this range in MEMFD and thereby move it to 8MB. We also now declare the table range in the FDF to set PCDs. This allows us to ASSERT that CR3 is set as expected in OVMF SEC. OvmfPkgIa32.fdf and OvmfPkgIa32X64.fdf are updated simply for consistency. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15146 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Sec')
-rw-r--r--OvmfPkg/Sec/SecMain.c8
-rw-r--r--OvmfPkg/Sec/SecMain.inf1
2 files changed, 9 insertions, 0 deletions
diff --git a/OvmfPkg/Sec/SecMain.c b/OvmfPkg/Sec/SecMain.c
index e235b964a8..ece1c9b517 100644
--- a/OvmfPkg/Sec/SecMain.c
+++ b/OvmfPkg/Sec/SecMain.c
@@ -615,6 +615,14 @@ SecCoreStartupWithStack (
AsmWriteIdtr (&IdtDescriptor);
+#if defined (MDE_CPU_X64)
+ //
+ // ASSERT that the Page Tables were set by the reset vector code to
+ // the address we expect.
+ //
+ ASSERT (AsmReadCr3 () == (UINTN) PcdGet32 (PcdOvmfSecPageTablesBase));
+#endif
+
//
// |-------------| <-- TopOfCurrentStack
// | Stack | 32k
diff --git a/OvmfPkg/Sec/SecMain.inf b/OvmfPkg/Sec/SecMain.inf
index 91d0a4469f..68dfeaaa4b 100644
--- a/OvmfPkg/Sec/SecMain.inf
+++ b/OvmfPkg/Sec/SecMain.inf
@@ -66,3 +66,4 @@
[Pcd]
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfMemFvSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPageTablesBase