Commit Graph

2 Commits

Author SHA1 Message Date
Min Xu 76fda1def3 OvmfPkg: Call CcProbe in SecMain.c instead of TsIsEnabled
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3902

TdIsEnabled() uses the CPUID instruction. At this point, exception
handling is not established and a CPUID instruction will generate
a #VC and cause the booting guest to crash.

CcProbe() checks Ovmf work area to return the guest type. So call
of CcProbe() instead of TdIsEnabled() to fix the above issue.

Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-19 01:26:08 +00:00
Min Xu 1f29de4d20 OvmfPkg/IntelTdx: Add Sec to bring up both Legacy and Tdx guest
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429

OvmfPkg/IntelTdx/Sec is a simplied version of OvmfPkg/Sec. There
are below differences between these 2 Sec
 - IntelTdx/Sec only supports Legacy guest and Tdx guest in X64.
 - IntelTdx/Sec calls PeilessStartup () to jump from SEC to DXE directly.
 - IntelTdx/Sec uses MemoryAllocationLib / HobLib / PrePiLib in
   EmbeddedPkg.

Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-04-02 10:09:47 +00:00