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raw | patch | inline | side by side (parent: dfdebc2)
author | Alexander Graf <agraf@suse.de> | |
Thu, 17 Jan 2013 12:50:25 +0000 (13:50 +0100) | ||
committer | Alexander Graf <agraf@suse.de> | |
Thu, 17 Jan 2013 23:40:49 +0000 (00:40 +0100) |
Guests can trigger MMIO exits using dcbf. Since we don't emulate cache
incoherent MMIO, just do nothing and move on.
Reported-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Ben Collins <ben.c@servergy.com>
CC: stable@vger.kernel.org
incoherent MMIO, just do nothing and move on.
Reported-by: Ben Collins <ben.c@servergy.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Ben Collins <ben.c@servergy.com>
CC: stable@vger.kernel.org
arch/powerpc/kvm/emulate.c | patch | blob | history |
index b0855e5d8905ee50e6422ca9edfc37aa952f6b21..9d9cddc5b346ff9518009539c08804b1cf0f9682 100644 (file)
#define OP_31_XOP_TRAP 4
#define OP_31_XOP_LWZX 23
#define OP_31_XOP_TRAP_64 68
+#define OP_31_XOP_DCBF 86
#define OP_31_XOP_LBZX 87
#define OP_31_XOP_STWX 151
#define OP_31_XOP_STBX 215
emulated = kvmppc_emulate_mtspr(vcpu, sprn, rs);
break;
+ case OP_31_XOP_DCBF:
case OP_31_XOP_DCBI:
/* Do nothing. The guest is performing dcbi because
* hardware DMA is not snooped by the dcache, but