The XenPlatformPei needs to make hypercalls, but the XenHypercallLib was initialised before the HyperPage was ready. Now that XenPlatformPei has initialised the HyperPage, reinitialise the XenHypercallLib.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689 Signed-off-by: Anthony PERARD <anthony.per...@citrix.com> --- Notes: v3: - new patch split from XenHypercallLib: Enable it in PEIM. - check for Lib initialisation failure. OvmfPkg/XenPlatformPei/XenPlatformPei.inf | 1 + OvmfPkg/XenPlatformPei/Xen.c | 9 +++++++++ 2 files changed, 10 insertions(+) diff --git a/OvmfPkg/XenPlatformPei/XenPlatformPei.inf b/OvmfPkg/XenPlatformPei/XenPlatformPei.inf index 4d00206d09..0ef77db92c 100644 --- a/OvmfPkg/XenPlatformPei/XenPlatformPei.inf +++ b/OvmfPkg/XenPlatformPei/XenPlatformPei.inf @@ -59,6 +59,7 @@ [LibraryClasses] MtrrLib MemEncryptSevLib PcdLib + XenHypercallLib [Pcd] gUefiOvmfPkgTokenSpaceGuid.PcdOvmfPeiMemFvBase diff --git a/OvmfPkg/XenPlatformPei/Xen.c b/OvmfPkg/XenPlatformPei/Xen.c index c5293498c4..877d776de8 100644 --- a/OvmfPkg/XenPlatformPei/Xen.c +++ b/OvmfPkg/XenPlatformPei/Xen.c @@ -26,6 +26,7 @@ #include <Library/ResourcePublicationLib.h> #include <Library/MtrrLib.h> #include <IndustryStandard/Xen/arch-x86/hvm/start_info.h> +#include <Library/XenHypercallLib.h> #include "Platform.h" #include "Xen.h" @@ -88,6 +89,7 @@ XenConnect ( EFI_XEN_OVMF_INFO *Info; CHAR8 Sig[sizeof (Info->Signature) + 1]; UINT32 *PVHResetVectorData; + RETURN_STATUS Status; AsmCpuid (XenLeaf + 2, &TransferPages, &TransferReg, NULL, NULL); mXenInfo.HyperPages = AllocatePages (TransferPages); @@ -152,6 +154,13 @@ XenConnect ( sizeof(mXenInfo) ); + // + // Initialize the XenHypercall library, now that the XenInfo HOB is + // available + // + Status = XenHypercallLibInit (); + ASSERT_RETURN_ERROR (Status); + return EFI_SUCCESS; } -- Anthony PERARD -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#43300): https://edk2.groups.io/g/devel/message/43300 Mute This Topic: https://groups.io/mt/32308724/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
