Searched hist:f05859827d28bde311a92e0bb5c1b6a92c305442 (Results 1 – 2 of 2) sorted by relevance
| /openbmc/linux/arch/powerpc/kvm/ |
| H A D | book3s_hv_rm_mmu.c | diff f05859827d28bde311a92e0bb5c1b6a92c305442 Fri Nov 04 00:55:11 CDT 2016 Yongji Xie <xyjxie@linux.vnet.ibm.com> KVM: PPC: Book3S HV: Clear the key field of HPTE when the page is paged out
Currently we mark a HPTE for emulated MMIO with HPTE_V_ABSENT bit
set as well as key 0x1f. However, those HPTEs may be conflicted with
the HPTE for real guest RAM page HPTE with key 0x1f when the page
get paged out.
This patch clears the key field of HPTE when the page is paged out,
then recover it when HPTE is re-established.
Signed-off-by: Yongji Xie <xyjxie@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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| H A D | book3s_64_mmu_hv.c | diff f05859827d28bde311a92e0bb5c1b6a92c305442 Fri Nov 04 00:55:11 CDT 2016 Yongji Xie <xyjxie@linux.vnet.ibm.com> KVM: PPC: Book3S HV: Clear the key field of HPTE when the page is paged out
Currently we mark a HPTE for emulated MMIO with HPTE_V_ABSENT bit
set as well as key 0x1f. However, those HPTEs may be conflicted with
the HPTE for real guest RAM page HPTE with key 0x1f when the page
get paged out.
This patch clears the key field of HPTE when the page is paged out,
then recover it when HPTE is re-established.
Signed-off-by: Yongji Xie <xyjxie@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
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