From: Paul Mackerras Date: Mon, 8 Jul 2013 10:09:53 +0000 (+1000) Subject: KVM: PPC: Book3S HV: Allow negative offsets to real-mode hcall handlers X-Git-Tag: v3.12-rc1~143^2~5^2~11 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4baa1d871c8c959084aa5367a9bf211f383941e5;p=pandora-kernel.git KVM: PPC: Book3S HV: Allow negative offsets to real-mode hcall handlers The table of offsets to real-mode hcall handlers in book3s_hv_rmhandlers.S can contain negative values, if some of the handlers end up before the table in the vmlinux binary. Thus we need to use a sign-extending load to read the values in the table rather than a zero-extending load. Without this, the host crashes when the guest does one of the hcalls with negative offsets, due to jumping to a bogus address. Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf --- Reading git-diff-tree failed