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authorAnthony PERARD <anthony.perard@citrix.com>2019-08-13 12:30:50 +0100
committerLaszlo Ersek <lersek@redhat.com>2019-08-21 18:03:49 +0200
commita8c791c15be599f5a48f8a70b040fbe0cd3232c0 (patch)
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OvmfPkg/XenResetVector: Add new entry point for Xen PVH
Add a new entry point for Xen PVH that enter directly in 32bits. Information on the expected state of the machine when this entry point is used can be found at: https://xenbits.xenproject.org/docs/unstable/misc/pvh.html Also, compare to the original file [1], the two `nop' of the "resetVector" entry point are removed. There were introduced by 8332983e2e33 ("UefiCpuPkg: Replace the un-necessary WBINVD instruction at the reset vector with two NOPs in VTF0.", 2011-08-04), but don't seems to be useful. This is the entry point used by HVM guest (hvmloader). [1] UefiCpuPkg/ResetVector/Vtf0/Ia16/ResetVectorVtf0.asm 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: <20190813113119.14804-7-anthony.perard@citrix.com>
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