From: Paul Mackerras Date: Fri, 20 Sep 2013 04:52:47 +0000 (+1000) Subject: KVM: PPC: Book3S PR: Correct errors in H_ENTER implementation X-Git-Tag: v3.13-rc1~80^2~15^2~32 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5cd92a9521d35013fff904d3c805323027a33d73;p=pandora-kernel.git KVM: PPC: Book3S PR: Correct errors in H_ENTER implementation The implementation of H_ENTER in PR KVM has some errors: * With H_EXACT not set, if the HPTEG is full, we return H_PTEG_FULL as the return value of kvmppc_h_pr_enter, but the caller is expecting one of the EMULATE_* values. The H_PTEG_FULL needs to go in the guest's R3 instead. * With H_EXACT set, if the selected HPTE is already valid, the H_ENTER call should return a H_PTEG_FULL error. This fixes these errors and also makes it write only the selected HPTE, not the whole group, since only the selected HPTE has been modified. This also micro-optimizes the calculations involving pte_index and i. Signed-off-by: Paul Mackerras Signed-off-by: Alexander Graf --- Reading git-diff-tree failed