Anthony PERARD f198e254f7 OvmfPkg/XenResetVector: Allow jumpstart from either hvmloader or PVH ... This patch allows the ResetVector to be run indenpendently from build time addresses. The goal of the patch is to avoid having to create RAM just below 4G when creating a Xen PVH guest while being compatible with the way hvmloader currently load OVMF, just below 4G. Only the new PVH entry point will do the calculation. The ResetVector will figure out its current running address by creating a temporary stack, make a call and calculate the difference between the build time address and the address at run time. This patch copies and make the necessary modification to some other asm files: - copy of UefiCpuPkg/.../Flat32ToFlat64.asm: Allow Transition32FlatTo64Flat to be run from anywhere in memory - copy of UefiCpuPkg/../SearchForBfvBase.asm: Add a extra parameter to indicate where to start the search for the boot firmware volume. Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1689 Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20190813113119.14804-9-anthony.perard@citrix.com>		2019-08-21 18:03:49 +02:00
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Real16ToFlat32.asm	OvmfPkg/XenResetVector: Allow jumpstart from either hvmloader or PVH	2019-08-21 18:03:49 +02:00
ResetVectorVtf0.asm	OvmfPkg/XenResetVector: Add new entry point for Xen PVH	2019-08-21 18:03:49 +02:00