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authorJames Hogan <james.hogan@imgtec.com>2015-04-27 15:07:16 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-07-10 10:37:59 -0700
commit11ac9ad9ab48551a5bb17748d7e9d8676b28c692 (patch)
tree5ff0e5c97495f2561167945e3e93872a7ce07721 /arch/x86/kvm/lapic.c
parent38f69b4caebc05f39c8f27a7d84f4b283699f600 (diff)
downloadlwn-11ac9ad9ab48551a5bb17748d7e9d8676b28c692.tar.gz
lwn-11ac9ad9ab48551a5bb17748d7e9d8676b28c692.zip
MIPS: Fix KVM guest fixmap address
commit 8e748c8d09a9314eedb5c6367d9acfaacddcdc88 upstream. KVM guest kernels for trap & emulate run in user mode, with a modified set of kernel memory segments. However the fixmap address is still in the normal KSeg3 region at 0xfffe0000 regardless, causing problems when cache alias handling makes use of them when handling copy on write. Therefore define FIXADDR_TOP as 0x7ffe0000 in the guest kernel mapped region when CONFIG_KVM_GUEST is defined. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9887/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/kvm/lapic.c')
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